Oihana Php Arango

Edges extends Documents uses EdgesPurgeTrait, EdgesCountTrait, EdgesDeleteTrait, EdgesExistTrait, EdgesGetTrait, EdgesInsertTrait

Represents a collection of ArangoDB edges connecting vertices.

This model extends Documents and provides additional methods to manage edges between vertices (from and to).

It supports:

Automatic initialization of vertex references (from and to).
Counting edges based on vertex filters.
AQL query generation for counting edges with bind variables.

Constants

EDGE_SUFFIX : string = '_e': The suffix used for edge fields in queries.
FIELDS : string = 'fields': The 'fields' key for initialization arrays.
JOIN_SUFFIX : string = '_j': The suffix used for join fields in queries.
UNIQUE_SUFFIX : string = '_u': The suffix used for unique fields in queries.
ARRAY_VAR : string = '__arr': The AQL variable holding the new array value written back by the `UPDATE`.
ELEMENT_VAR : string = '__el': The AQL variable holding the element targeted by an item key, looked up by {@see arrayMove()} before it rebuilds the final order.
INDEX_VAR : string = '__i': The AQL variable holding the index of the element being renumbered, bound by the loop {@see arrayRank()} runs over the final array.
KEY_VAR : string = '__k': The AQL variable holding the item key currently looked up by {@see arrayReorder()}, bound by the loop it runs over the requested order.
ORDERED_VAR : string = '__ord': The AQL variable holding the elements {@see arrayReorder()} resolved from the requested order, before the ones it did not mention are appended back.
RANKED_VAR : string = '__pos': The AQL variable holding the renumbered array — the one written back when the field declares an {@see Arango::POSITION_KEY}, in place of {@see self::ARRAY_VAR}.
REMAINDER_VAR : string = '__rm': The AQL variable holding the array **minus** the element being moved, from which {@see arrayMove()} rebuilds the final order.
NORMALIZED_MARKERS : array<string|int, mixed> = [\oihana\arango\enums\Field::ALTERS, \oihana\ar...: The scalar `Field::` markers copied **verbatim** from the raw field options into the normalized definition produced by {@see normalizeFieldDefinition()}.

Properties

$arrays : array<string|int, mixed>: The per-field embedded-array configuration, normalised to `[ field => [ Arango::MODE => ArrayMode::*, Arango::COUNTER => ?string, Arango::ITEM_KEY => ?string, Arango::POSITION_KEY => ?string ] ]`.
$fields : array<string, mixed>: The fields definitions to return in get/list methods.
$purge : string|null: The purge mode for this edge collection.
$skinFields : array<string, array<string, mixed>>: Optional per-skin alternative projections for the model's own fields.
$_purge : string|null

Methods

__construct() : mixed: Creates a new Edges instance.
__destruct() : mixed: Invoked when the Edges instance is removed.
arrayContains() : bool: Checks whether the array `field` of a single document (identified by `owner`) contains `value`.
arrayDefaults() : array<string, array<string|int, mixed>|int>: Returns the default seed for the declared embedded array fields: each array field defaults to `[]`, and each declared counter to `0`.
arrayInsert() : object|null: Adds one or several values to the array `field` of a single document.
arrayMove() : object|null: Moves an existing `value` to the given zero-based `position` inside the array `field`.
arrayPurgeRef() : array<string|int, object>|int: Removes a `value` from the array `field` of **every** document of the collection that contains it — typically to purge a now-deleted reference.
arrayRemove() : object|null: Removes one or several values from the array `field` of a single document.
arrayReorder() : object|null: Reorders the array `field` from a list of item keys — the whole new order in a single call, where {@see arrayMove()} moves one element at a time.
arrayUpdate() : object|null: Merges a partial `patch` into the element of the array `field` carrying the given item key — an **in-place edit**, where the other operations only add, remove or reorder whole elements.
countAnyVertices() : int: Counts all unique vertices connected in any direction from the given vertex.
countEdges() : int: Counts the number of edge documents matching the specified vertices.
countInboundVertices() : int: Counts all unique inbound vertices connected to the given 'to' vertex.
countOutboundVertices() : int: Counts all unique outbound vertices connected from the given 'from' vertex.
countVertices() : int: Counts all vertices connected with a specific direction.
deleteEdge() : array<string|int, mixed>|object|null: Delete an edge document connecting two vertices.
deleteEdgeFrom() : array<string|int, mixed>|object|null: Delete all edges where the `_from` vertex matches the given identifier.
deleteEdges() : array<string|int, mixed>|object|null: Delete all edges connected to a specific vertex, either `_from` or `_to`.
deleteEdgeTo() : array<string|int, mixed>|object|null: Delete all edges where the `_to` vertex matches the given identifier.
diagnose() : array<string|int, DiffReport>: Compares everything this model declares with the server state, without touching anything — the read-only half of {@see repair()}.
existEdge() : bool: Checks if an edge exists between the given '_from' and '_to' vertices.
existEdgeFrom() : bool: Checks if at least one edge exists from the specified 'from' vertex.
existEdgeTo() : bool: Checks if at least one edge exists to the specified 'to' vertex.
getAnyVertices() : object|array<string|int, mixed>|null: Retrieves all vertices connected in any direction from the given vertex.
getFirstAnyVertex() : object|array<string|int, mixed>|null: Retrieves the first vertex connected in any direction from the given vertex.
getFirstInboundVertex() : object|array<string|int, mixed>|null: Retrieves the first inbound vertex connected to the given 'to' vertex.
getFirstOutboundVertex() : object|array<string|int, mixed>|null: Retrieves the first outbound vertex connected from the given 'from' vertex.
getInboundVertices() : object|array<string|int, mixed>|null: Retrieves all inbound vertices connected to the given 'to' vertex.
getOutboundVertices() : object|array<string|int, mixed>|null: Retrieves all outbound vertices connected from the given 'from' vertex.
getVertices() : object|array<string|int, mixed>|null: Retrieves all vertices connected with a specific direction.
hasAnyVertex() : bool: Checks if a specific target vertex is a neighbor in any direction.
hasInboundVertex() : bool: Checks if a specific target vertex is an inbound neighbor of the start vertex.
hasOutboundVertex() : bool: Checks if a specific target vertex is an outbound neighbor of the start vertex.
initializeArrays() : static: Initialize the per-field embedded-array configuration from the `arrays` option.
initializeDocumentsMethods() : static: Initialize the Documents HTTP methods signals.
initializeFields() : static: Initialize fields definitions from an associative array.
initializeInvalidations() : static: Connects `afterInsert` / `afterUpdate` / `afterDelete` to the declared services.
initializePurge() : static: Initialize the purge property from an array or string.
initializeSkinFields() : static: Initialize the per-skin projections registry from an associative array.
insertEdge() : object|null: Inserts a new edge document connecting two vertices, optionally checking for uniqueness.
prepareQueryFields() : array<string, array<string|int, mixed>>|null: Prepares query fields based on internal definitions and optional skin filter.
repair() : array<string|int, DiffReport>: Reconciles the server with everything this model declares — the acting half of {@see diagnose()}:
returnFields() : string: Generates an AQL document expression or LET statement with the selected fields.
arrayCounter() : string|null: Returns the configured length-counter attribute of an array field, or null.
arrayItemKey() : string|null: Resolves the item-key attribute of an array field — the attribute carried by each element that identifies it — honouring an optional per-call `itemKey` override, then the declared configuration, then defaulting to null.
arrayMode() : string: Resolves the {@see ArrayMode} of an array field, honouring an optional per-call `mode` override, then the declared configuration, then defaulting to LIST.
arrayPositionKey() : string|null: Resolves the position-key attribute of an array field — the attribute of each element carrying its rank — honouring an optional per-call `positionKey` override, then the declared configuration, then defaulting to null.
arrayWith() : string: Builds the `WITH { ... }` object clause: the array field, its optional length counter, and the `modified` timestamp unless `touch` is disabled.
countEdgesQuery() : string: Generates the count query and fill the binds array reference.
ensureArrayDefaults() : Closure|null: Builds an `ensure` closure that seeds the declared array fields to `[]` (and their counters to `0`) for any missing key of a document being created, then applies the optional user-supplied `ensure`. Returns the user closure unchanged when no array field is declared (so models without `AQL::ARRAYS` are untouched).
arrayErasedKeys() : array<int, string>: The attributes a patch asks to be taken away — the keys it carries at null.
arrayRank() : array{0: array, 1: string}: Appends the renumbering `LET` to the given clauses when the field declares an {@see Arango::POSITION_KEY}, and returns them along with the AQL variable holding the array to write back.
filterFieldsBySkin() : array<string, mixed>: Filters fields based on an optional skin.
generateUniqueKey() : string|null: Generates a unique key for special filters like edges, joins, or unique names.
hasVertex() : bool: Private helper to check for vertex existence in a specific direction.
normalizeFieldDefinition() : array<string, mixed>|null: Normalize a field definition into a structured array for queries.
runArrayUpdate() : object|null: Compiles and executes a single-document array UPDATE (`FOR ... FILTER ... LET ... UPDATE ... RETURN NEW`), emitting the update signals around the write.

EDGE_SUFFIX

The suffix used for edge fields in queries.


    public
        string
    EDGE_SUFFIX
    = '_e'

FIELDS

The 'fields' key for initialization arrays.


    public
        string
    FIELDS
    = 'fields'

JOIN_SUFFIX

The suffix used for join fields in queries.


    public
        string
    JOIN_SUFFIX
    = '_j'

UNIQUE_SUFFIX

The suffix used for unique fields in queries.


    public
        string
    UNIQUE_SUFFIX
    = '_u'

ARRAY_VAR

The AQL variable holding the new array value written back by the `UPDATE`.


    protected
        string
    ARRAY_VAR
    = '__arr'

Double-underscored to stay out of the way of any user-supplied bind or alias.

ELEMENT_VAR

The AQL variable holding the element targeted by an item key, looked up by {@see arrayMove()} before it rebuilds the final order.


    protected
        string
    ELEMENT_VAR
    = '__el'

It is null when no element carries the requested key, which the move guards against so an unknown key is a no-op rather than a phantom insertion.

INDEX_VAR

The AQL variable holding the index of the element being renumbered, bound by the loop {@see arrayRank()} runs over the final array.


    protected
        string
    INDEX_VAR
    = '__i'

KEY_VAR

The AQL variable holding the item key currently looked up by {@see arrayReorder()}, bound by the loop it runs over the requested order.


    protected
        string
    KEY_VAR
    = '__k'

ORDERED_VAR

The AQL variable holding the elements {@see arrayReorder()} resolved from the requested order, before the ones it did not mention are appended back.


    protected
        string
    ORDERED_VAR
    = '__ord'

RANKED_VAR

The AQL variable holding the renumbered array — the one written back when the field declares an {@see Arango::POSITION_KEY}, in place of {@see self::ARRAY_VAR}.


    protected
        string
    RANKED_VAR
    = '__pos'

REMAINDER_VAR

The AQL variable holding the array **minus** the element being moved, from which {@see arrayMove()} rebuilds the final order.


    protected
        string
    REMAINDER_VAR
    = '__rm'

NORMALIZED_MARKERS

The scalar `Field::` markers copied **verbatim** from the raw field options into the normalized definition produced by {@see normalizeFieldDefinition()}.


    private
        array<string|int, mixed>
    NORMALIZED_MARKERS
    = [\oihana\arango\enums\Field::ALTERS, \oihana\arango\enums\Field::DEFAULT, \oihana\arango\enums\Field::ELSE, \oihana\arango\enums\Field::FORMAT, \oihana\arango\enums\Field::NAME, \oihana\arango\enums\Field::NULLABLE, \oihana\arango\enums\Field::PATH, \oihana\arango\enums\Field::PATHS, \oihana\arango\enums\Field::PROPERTY, \oihana\arango\enums\Field::QUOTED, \oihana\arango\enums\Field::RAW, \oihana\arango\enums\Field::REQUIRES, \oihana\arango\enums\Field::SELF_REQUIRES, \oihana\arango\enums\Field::SCOPE, \oihana\arango\enums\Field::WHEN, \oihana\arango\enums\Field::WHERE]

⚠️ Single source of truth — register every new marker here. A scalar Field:: marker absent from this list is silently stripped during projection normalization, so it never reaches the query builders nor the permission gates (this is exactly how Field::SELF_REQUIRES was first lost). The structural markers are built separately and must NOT be added here: Field::FILTER (seeded from the already-resolved filter), Field::FIELDS / Field::EDGES / Field::JOINS (sub-projections attached after the recursive walk), Field::UNIQUE (generated), and the skin buckets (AQL::SKIN_FIELDS).

Field::DEFAULT is intentionally kept even though it resolves to null (Field::DEFAULT === null), so the copy is byte-for-byte identical to the historical literal table.

$arrays

The per-field embedded-array configuration, normalised to `[ field => [ Arango::MODE => ArrayMode::*, Arango::COUNTER => ?string, Arango::ITEM_KEY => ?string, Arango::POSITION_KEY => ?string ] ]`.


        public
            array<string|int, mixed>
    $arrays
     = []

$fields

The fields definitions to return in get/list methods.


        public
            array<string, mixed>
    $fields
     = []

Keys are field names, values are either a Filter constant, a definition array, or null.

Tags

example

$model->fields =>
[
    Schema::ACTIVE                => Filter::BOOL ,
    Schema::WITH_STATUS           => Field::FILTER => Filter::DEFAULT ,
    Schema::ID                    => Filter::ID ,
    Schema::NAME                  => null , // Filter::DEFAULT ,
    Schema::URL                   => Filter::URL ,
    Schema::CREATED               => Filter::DATETIME ,
    Schema::MODIFIED              => [ Field::FILTER => Filter::DATETIME ] ,
    Schema::IMAGE                 => [ Field::FILTER => Filter::EDGE ] ,
    Schema::ALTERNATIVE_HEADLINE  => Filter::TRANSLATE ,
    Schema::ALTERNATE_NAME        => Filter::TRANSLATE ,
    Schema::DESCRIPTION           => Filter::TRANSLATE ,
    Schema::HEADLINE              => Filter::TRANSLATE ,
    Schema::SLOGAN                => Filter::TRANSLATE ,
    Schema::SCOPE_HAS_PERMISSION  => [ Field::FILTER => Filter::BOOL ] ,
    Schema::TOKEN_EXPIRATION      => [ Field::FILTER => Filter::INT  ] ,
    Schema::PERMISSIONS           => [ Field::FILTER => Filter::EDGES , Field::SKINS => [ Skin::FULL ] ]
    Schema::NUM_PERMISSIONS       => Field::FILTER => Filter::EDGES_COUNT
] ;

$purge virtual

The purge mode for this edge collection.


        public
            string|null
    $purge

One of the constants defined in Purge or null if no purge is configured.

Hooks


    public
                string|null
        get


    public
            set

$skinFields

Optional per-skin alternative projections for the model's own fields.


        public
            array<string, array<string, mixed>>
    $skinFields
     = []

A skin => fields table with the exact same semantics as the AQL::SKIN_FIELDS key of an edge/join definition : each bucket is a complete fields array (same shape as $fields), the resolution order is [$skin] → ['*'] → $fields → null, and the selected bucket fully replaces the others (no merging). An edge/join that declares no projection of its own inherits the target model's buckets, since it prepares the model fields with the request skin.

An empty registry (default) keeps the legacy single-projection behavior, byte-for-byte.

Tags

example

$model->skinFields =
[
    Skin::DEFAULT => [ Schema::NAME => Filter::DEFAULT ] ,
    Skin::FULL    => [ Schema::NAME => Filter::DEFAULT , Schema::ROLES => [ Field::FILTER => Filter::EDGES ] ] ,
] ;

$_purge


        private
            string|null
    $_purge
     = null

__construct()

Creates a new Edges instance.


    public
                    __construct(Container $container[, array<string|int, mixed> $init = [] ]) : mixed

Parameters

$container : Container

The DI Container reference.

$init : array<string|int, mixed> = []

The options of the Edges model.

'alters' - An associative array of transformation rules used to alter or enrich the document properties returned by the model.
'binds' - The bindvars array definitions
'collection' - The name of the ArangoDB Document collection to manage
'database' - The arangoDB database reference
'from' - The source Documents model reference (vertex where edges originate).
'to' - The target Documents model reference (vertex where edges point to)

Tags

throws

ContainerExceptionInterface

NotFoundExceptionInterface

DependencyException

NotFoundException

ReflectionException

example

$edges = new Edges( $container,
[
    'collection' => 'user_follows',
    'from'       => $usersModel,
    'to'         => $usersModel,
]);

__destruct()

Invoked when the Edges instance is removed.


    public
                    __destruct() : mixed

arrayContains()

Checks whether the array `field` of a single document (identified by `owner`) contains `value`.


    public
                    arrayContains([array{owner?: mixed, field?: string, value?: mixed, key?: string, itemKey?: string, prefix?: string, debug?: bool} $init = [] ]) : bool

Generated AQL: RETURN LENGTH( FOR doc IN @@collection FILTER doc._key == @key && POSITION(doc.field, @value) RETURN 1 ) > 0

When the field declares an Arango::ITEM_KEY, value is the key of the element rather than the element itself and the membership test becomes doc.field[? FILTER CURRENT.<itemKey> == @value].

Parameters

$init : array{owner?: mixed, field?: string, value?: mixed, key?: string, itemKey?: string, prefix?: string, debug?: bool} = []

Return values

bool —

True if the value is present.

arrayDefaults()

Returns the default seed for the declared embedded array fields: each array field defaults to `[]`, and each declared counter to `0`.


    public
                    arrayDefaults() : array<string, array<string|int, mixed>|int>

Used to initialize a freshly created document so that every declared array field is always a real (possibly empty) array — see ensureArrayDefaults().

Return values

array<string, array<string|int, mixed>|int> —

e.g. [ 'tracks' => [], 'numberOfTracks' => 0, 'tags' => [] ].

arrayInsert()

Adds one or several values to the array `field` of a single document.


    public
                    arrayInsert([array{owner?: mixed, field?: string, value?: mixed, side?: string, mode?: string, key?: string, prefix?: string, touch?: bool, options?: array|object|string|null, debug?: bool} $init = [] ]) : object|null

The uniqueness and sorting are driven by the field's ArrayMode; value may be a scalar or an array (its elements are appended, never nested).

Generated AQL (LIST/SET, side RIGHT): ... UPDATE doc WITH { field: APPEND(doc.field, @value [, true]) [, counter: LENGTH(...)] [, modified: ...] } ...

Parameters

$init : array{owner?: mixed, field?: string, value?: mixed, side?: string, mode?: string, key?: string, prefix?: string, touch?: bool, options?: array|object|string|null, debug?: bool} = []

Return values

object|null —

The updated document, or null if no document matched.

arrayMove()

Moves an existing `value` to the given zero-based `position` inside the array `field`.


    public
                    arrayMove([array{owner?: mixed, field?: string, value?: mixed, position?: int, key?: string, itemKey?: string, prefix?: string, touch?: bool, options?: array|object|string|null, debug?: bool} $init = [] ]) : object|null

Unsupported on a ArrayMode::SORTED_SET field (the sort order overrides any manual position): an UnsupportedOperationException is thrown.

Generated AQL:

LET __rm  = REMOVE_VALUE(doc.field, @value)
LET __arr = APPEND( PUSH( SLICE(__rm, 0, <pos>), @value, true ), SLICE(__rm, <pos>) )
UPDATE doc WITH { field: __arr [, counter: LENGTH(__arr)] [, modified: ...] } ...

When the field declares an Arango::ITEM_KEY, value is the key of the element to move; it is looked up first and the reordering is guarded on it:

LET __el  = FIRST(doc.field[* FILTER CURRENT.<itemKey> == @value])
LET __rm  = doc.field[* FILTER CURRENT.<itemKey> != @value]
LET __arr = __el == null ? doc.field : APPEND( PUSH( SLICE(__rm, 0, <pos>), __el, true ), SLICE(__rm, <pos>) )

A key matching no element therefore leaves the array untouched, rather than inserting a null at the requested position.

Parameters

$init : array{owner?: mixed, field?: string, value?: mixed, position?: int, key?: string, itemKey?: string, prefix?: string, touch?: bool, options?: array|object|string|null, debug?: bool} = []

Return values

object|null —

The updated document, or null if no document matched.

arrayPurgeRef()

Removes a `value` from the array `field` of **every** document of the collection that contains it — typically to purge a now-deleted reference.


    public
                    arrayPurgeRef([array{field?: string, value?: mixed, prefix?: string, touch?: bool, count?: bool, options?: array|object|string|null, debug?: bool} $init = [] ]) : array<string|int, object>|int

Generated AQL: FOR doc IN @@collection FILTER POSITION(doc.field, @value) LET __arr = REMOVE_VALUE(doc.field, @value) UPDATE doc WITH { ... } ... RETURN NEW

Unlike the single-document operations, this one is by value only: it ignores any declared Arango::ITEM_KEY and matches the reference structurally.

Parameters

$init : array{field?: string, value?: mixed, prefix?: string, touch?: bool, count?: bool, options?: array|object|string|null, debug?: bool} = []

Return values

array<string|int, object>|int —

The list of modified documents, or their count when count is true.

arrayRemove()

Removes one or several values from the array `field` of a single document.


    public
                    arrayRemove([array{owner?: mixed, field?: string, value?: mixed, key?: string, itemKey?: string, prefix?: string, touch?: bool, options?: array|object|string|null, debug?: bool} $init = [] ]) : object|null

Generated AQL (scalar value): ... UPDATE doc WITH { field: REMOVE_VALUE(doc.field, @value) [, counter: LENGTH(...)] [, modified: ...] } ... (an array value uses REMOVE_VALUES instead).

When the field declares an Arango::ITEM_KEY, value holds the key(s) of the element(s) to drop and the new array is the inline filter doc.field[* FILTER CURRENT.<itemKey> != @value] (NOT IN for a list of keys).

Parameters

$init : array{owner?: mixed, field?: string, value?: mixed, key?: string, itemKey?: string, prefix?: string, touch?: bool, options?: array|object|string|null, debug?: bool} = []

Return values

object|null —

The updated document, or null if no document matched.

arrayReorder()

Reorders the array `field` from a list of item keys — the whole new order in a single call, where {@see arrayMove()} moves one element at a time.


    public
                    arrayReorder([array{owner?: mixed, field?: string, value?: mixed, key?: string, itemKey?: string, prefix?: string, touch?: bool, options?: array|object|string|null, debug?: bool} $init = [] ]) : object|null

Generated AQL:

LET __ord = (FOR __k IN @value LET __el = FIRST(doc.field[* FILTER CURRENT.<itemKey> == __k]) FILTER __el != null RETURN __el)
LET __arr = APPEND(__ord, doc.field[* FILTER CURRENT.<itemKey> NOT IN @value])
UPDATE doc WITH { field: __arr [, counter: LENGTH(__arr)] [, modified: ...] } ...

The elements the list does not mention are kept and appended after it: a partial list reorders what it names instead of deleting the rest. A key matching no element is skipped, and an empty list leaves the array as it is.

Duplicate keys are collapsed (first occurrence wins) before the query is built — resolving the same key twice would otherwise duplicate its element.

Requires an item key, like arrayUpdate(): without an attribute identifying the elements there is nothing to order them by. Unsupported on a ArrayMode::SORTED_SET field, like arrayMove().

Being a permutation of the existing elements, it does not re-apply the field invariant — it cannot introduce a duplicate that was not already there.

Parameters

$init : array{owner?: mixed, field?: string, value?: mixed, key?: string, itemKey?: string, prefix?: string, touch?: bool, options?: array|object|string|null, debug?: bool} = []

Return values

object|null —

The updated document, or null if no document matched.

arrayUpdate()

Merges a partial `patch` into the element of the array `field` carrying the given item key — an **in-place edit**, where the other operations only add, remove or reorder whole elements.


    public
                    arrayUpdate([array{owner?: mixed, field?: string, value?: mixed, patch?: array|object, eraseNull?: bool, key?: string, itemKey?: string, prefix?: string, touch?: bool, options?: array|object|string|null, debug?: bool} $init = [] ]) : object|null

Generated AQL:

LET __arr = doc.field[* RETURN CURRENT.<itemKey> == @value ? MERGE(CURRENT, @patch) : CURRENT]
UPDATE doc WITH { field: __arr [, counter: LENGTH(__arr)] [, modified: ...] } ...

Every element is projected back, so a value matching none of them rewrites the array unchanged. The merge is partial: the patch attributes overwrite theirs, the others are kept.

🔑 A null does not erase, unless asked to. MERGE() keeps it: a patch saying { "reason": null } writes the attribute back as null rather than taking it away, so an element rebuilt in place can never lose an attribute it once carried. Pass Arango::ERASE_NULL to read those nulls as erasures instead — the merged element is then wrapped in an UNSET() of their keys:

LET __arr = doc.field[* RETURN CURRENT.<itemKey> == @value ? UNSET(MERGE(CURRENT, @patch), "reason") : CURRENT]

Top-level attributes only, like UNSET() itself: a null sitting inside a sub-object of the patch stays a value. The flag is opt-in, so an existing caller keeps its nulls.

Requires an item key — declared on the field or passed per call. A field targeted by value cannot be edited in place: designating its element would mean holding a byte-for-byte copy of it, which the very patch being applied invalidates, so an UnsupportedOperationException is thrown rather than emitting an operation that only works once.

The field invariant is re-applied afterwards, since a patch can make two elements equal: ArrayMode::SET wraps the result in UNIQUE(), ArrayMode::SORTED_SET in SORTED_UNIQUE().

Parameters

$init : array{owner?: mixed, field?: string, value?: mixed, patch?: array|object, eraseNull?: bool, key?: string, itemKey?: string, prefix?: string, touch?: bool, options?: array|object|string|null, debug?: bool} = []

Return values

object|null —

The updated document, or null if no document matched.

countAnyVertices()

Counts all unique vertices connected in any direction from the given vertex.


    public
                    countAnyVertices([string|null $vertex = null ][, array<string|int, mixed> $init = [] ]) : int

This is a convenience method for countVertices(Traversal::ANY, ...). It counts unique neighbors (vertices), not relations (edges).

Parameters

$vertex : string|null = null: Optional '_key' or '_id' of the vertex to start from.
$init : array<string|int, mixed> = []: Optional query initialization array (e.g., AQL::GRAPH).

Return values

int —

The total count of unique connected vertices.

countEdges()

Counts the number of edge documents matching the specified vertices.


    public
                    countEdges([string|null $from = null ][, string|null $to = null ][, array<string|int, mixed> $init = [] ]) : int

This counts the relations (edges), not the unique neighbors.

Parameters

$from : string|null = null: Optional '_from' vertex identifier.
$to : string|null = null: Optional '_to' vertex identifier.
$init : array<string|int, mixed> = []: Optional query options (e.g., AQL::BINDS, operator => Logic::OR).

Return values

int —

The total count of matching edge documents.

countInboundVertices()

Counts all unique inbound vertices connected to the given 'to' vertex.


    public
                    countInboundVertices([string|null $to = null ][, array<string|int, mixed> $init = [] ]) : int

This is a convenience method for countVertices(Traversal::INBOUND, ...). It counts unique neighbors (vertices), not relations (edges).

Parameters

$to : string|null = null: Optional '_key' or '_id' of the vertex to traverse to.
$init : array<string|int, mixed> = []: Optional query initialization array (e.g., AQL::GRAPH).

Return values

int —

The total count of unique inbound vertices.

countOutboundVertices()

Counts all unique outbound vertices connected from the given 'from' vertex.


    public
                    countOutboundVertices([string|null $from = null ][, array<string|int, mixed> $init = [] ]) : int

This is a convenience method for countVertices(Traversal::OUTBOUND, ...). It counts unique neighbors (vertices), not relations (edges).

Parameters

$from : string|null = null: Optional '_key' or '_id' of the vertex to start from.
$init : array<string|int, mixed> = []: Optional query initialization array (e.g., AQL::GRAPH).

Return values

int —

The total count of unique outbound vertices.

countVertices()

Counts all vertices connected with a specific direction.


    public
                    countVertices(string $direction[, string|null $vertex = null ][, array{vertexRef?: string, edgeRef?: string|null, pathRef?: string|null, direction?: string, startVertex?: string, graph?: string|null, edgeCollection?: array|string|null, minDepth?: int|null, maxDepth?: int|null, prune?: string|array|null, options?: array|object|string|null, filter?: string|array|null, binds?: array, from?: string|null, to?: string|null, anyRef?: string|null, docRef?: string|null} $init = [] ]) : int

This counts the destination vertex documents.

Parameters

$direction : string: The direction of the relation: Traversal::OUTBOUND, Traversal::INBOUND, or Traversal::ANY.
$vertex : string|null = null: Optional '_key' or '_id' of the vertex to start the relation from.
$init : array{vertexRef?: string, edgeRef?: string|null, pathRef?: string|null, direction?: string, startVertex?: string, graph?: string|null, edgeCollection?: array|string|null, minDepth?: int|null, maxDepth?: int|null, prune?: string|array|null, options?: array|object|string|null, filter?: string|array|null, binds?: array, from?: string|null, to?: string|null, anyRef?: string|null, docRef?: string|null} = []: Optional query initialization and configuration array.

Return values

int —

The total count of matching vertices.

deleteEdge()

Delete an edge document connecting two vertices.


    public
                    deleteEdge([string|null $from = null ][, string|null $to = null ][, array<string|int, mixed> $init = [] ]) : array<string|int, mixed>|object|null

Builds an AQL query to remove the edge between $from and $to. By default, checks for existing edges to enforce uniqueness (throws Error409) unless disabled via AQL::UNIQUE.

Parameters

$from : string|null = null

The _key or full _id of the source vertex. If only a key is given, it will be resolved using $this->from context.

$to : string|null = null

The _key or full _id of the target vertex. If only a key is given, it will be resolved using $this->to context.

$init : array<string|int, mixed> = []

Optional array for query options:

AQL::UNIQUE (bool) : enforce uniqueness check (default true).
AQL::OPTIONS (array): additional options for the underlying ArangoDB INSERT operation.
AQL::BINDS, AQL::FILTER, AQL::FIRST, and other options accepted by insert().

Return values

array<string|int, mixed>|object|null —

The removed edge document, the first removed edge if multiple exist, or null if none.

deleteEdgeFrom()

Delete all edges where the `_from` vertex matches the given identifier.


    public
                    deleteEdgeFrom(string $from[, array<string|int, mixed> $init = [] ]) : array<string|int, mixed>|object|null

Parameters

$from : string: Vertex identifier for the _from field.
$init : array<string|int, mixed> = []: Optional query options (bind variables, filters, etc.).

Return values

array<string|int, mixed>|object|null —

Removed edge(s), or null if none found.

deleteEdges()

Delete all edges connected to a specific vertex, either `_from` or `_to`.


    public
                    deleteEdges(string|array<string|int, mixed> $vertex[, array<string|int, mixed> $init = [] ]) : array<string|int, mixed>|object|null

Constructs a dynamic AQL query to remove any edge documents where the given vertex is present in _from or _to.

Parameters

$vertex : string|array<string|int, mixed>

The vertex key(s) or full _id(s) to remove from the edge collection.

$init : array<string|int, mixed> = []

Optional query options:

AQL::CONTEXT (Documents|string|AQL::FROM|AQL::TO) : base context for vertex resolution.
AQL::BINDS, AQL::FILTER, AQL::DOC_REF etc.

Return values

array<string|int, mixed>|object|null —

List of removed edge documents, or null if none found.

deleteEdgeTo()

Delete all edges where the `_to` vertex matches the given identifier.


    public
                    deleteEdgeTo(string $to[, array<string|int, mixed> $init = [] ]) : array<string|int, mixed>|object|null

Parameters

$to : string: Vertex identifier for the _to field.
$init : array<string|int, mixed> = []: Optional query options (bind variables, filters, etc.).

Return values

array<string|int, mixed>|object|null —

Removed edge(s), or null if none found.

diagnose()

Compares everything this model declares with the server state, without touching anything — the read-only half of {@see repair()}.


    public
                    diagnose() : array<string|int, DiffReport>

The returned list carries one DiffReport per declared structure object, in dependency order:

the collection (DiffKind::COLLECTION) — existence and type (2 document / 3 edge);
the declared indexes (DiffKind::INDEXES, only when the model declares AQL::INDEXES) — one aggregated report: missing indexes, definition drifts (immutable → drop + recreate required), server indexes that are no longer declared;
the View (DiffKind::VIEW, only when the model declares an AQL::VIEW block) — the SearchTrait::viewDiff() report with its declaration-coherence checks.

A model without a collection resolves to a single DiffStatus::INVALID report; without a database to a single DiffStatus::UNREACHABLE report.

Return values

array<string|int, DiffReport> —

One report per declared structure object.

existEdge()

Checks if an edge exists between the given '_from' and '_to' vertices.


    public
                    existEdge([string|null $from = null ][, string|null $to = null ][, array<string|int, mixed> $init = [] ]) : bool

Parameters

$from : string|null = null: Optional 'from' vertex unique key identifier.
$to : string|null = null: Optional 'to' vertex unique key identifier.
$init : array<string|int, mixed> = []: Optional query options, e.g., bind variables.

Tags

throws

ArangoException

BindException

ContainerExceptionInterface

DependencyException

NotFoundException

NotFoundExceptionInterface

ReflectionException

example

$edges = new Edges($container, ['collection' => 'user_follows']);
$exists = $edges->existEdge('1', '5');
if ($exists) {
    echo "Edge exists between users/1 and posts/5";
}

Return values

bool —

True if at least one edge exists, false otherwise.

existEdgeFrom()

Checks if at least one edge exists from the specified 'from' vertex.


    public
                    existEdgeFrom(string $from[, array<string|int, mixed> $init = [] ]) : bool

Parameters

$from : string: The 'from' vertex unique key identifier.
$init : array<string|int, mixed> = []: Optional query options.

Tags

throws

ArangoException

BindException

ContainerExceptionInterface

DependencyException

NotFoundException

NotFoundExceptionInterface

ReflectionException

example

$edges = new Edges($container, ['collection' => 'user_follows']);
$existsFrom = $edges->existEdgeFrom('1');
if ($existsFrom)
{
    echo "There are edges from users/1";
}

Return values

bool —

True if at least one edge exists, false otherwise.

existEdgeTo()

Checks if at least one edge exists to the specified 'to' vertex.


    public
                    existEdgeTo(string $to[, array<string|int, mixed> $init = [] ]) : bool

Parameters

$to : string: The 'to' vertex unique key identifier.
$init : array<string|int, mixed> = []: Optional query options.

Tags

throws

ArangoException

BindException

ContainerExceptionInterface

DependencyException

NotFoundException

NotFoundExceptionInterface

ReflectionException

example

$edges = new Edges($container, ['collection' => 'user_follows']);
$existsTo = $edges->existEdgeTo('5');
if ($existsTo)
{
    echo "There are edges to posts/5";
}

Return values

bool —

True if at least one edge exists, false otherwise.

getAnyVertices()

Retrieves all vertices connected in any direction from the given vertex.


    public
                    getAnyVertices([string|null $vertex = null ][, array<string|int, mixed> $init = [] ]) : object|array<string|int, mixed>|null

This method executes an AQL query to fetch vertices that are connected via incoming or outgoing edges to the specified vertex in the current edge collection. It is a convenience wrapper for getVertices() with the direction set to Traversal::ANY.

Note: By default, this method returns raw data unless an AQL::TARGET model is provided in the $init options.

Parameters

$vertex : string|null = null

Optional '_key' or '_id' of the vertex to start from. If null, defaults to the current $this->from vertex reference.

$init : array<string|int, mixed> = []

Optional array of query options:

AQL::ANY_REF (string) : Context for ANY traversal when using a _key (AQL::FROM or AQL::TO). Defaults to AQL::FROM.
AQL::DOC_REF (string) : AQL variable name for the vertex (default: 'vertex').
AQL::FIRST (bool) : Return only the first matched vertex.
AQL::FROM (Documents) : Override the default _from model instance.
AQL::GRAPH (string) : The name of a graph to use for traversal.
AQL::LIMIT (int) : Maximum number of vertices to return.
AQL::MAX_DEPTH (int) : Maximum traversal depth (requires AQL::GRAPH).
AQL::MIN_DEPTH (int) : Minimum traversal depth (requires AQL::GRAPH).
AQL::OFFSET (int) : Number of vertices to skip.
AQL::PRUNE (string|array) : AQL PRUNE condition for graph traversals (requires AQL::GRAPH).
AQL::RAW (bool) : Return raw array data. Defaults to true unless AQL::TARGET is specified.
AQL::RETURN (string) : Manually specify the AQL RETURN expression.
AQL::SORT (string|array) : Sorting criteria.
AQL::TARGET (Documents) : Manually specify a Document model for schema mapping.
AQL::TO (Documents) : Override the default _to model instance.
Additional bind variables can also be passed.

Tags

throws

ArangoException

If there is an error executing the AQL query.

BindException

If a bind variable is missing or invalid.

ConstantException

If the $direction argument is not a valid Traversal constant.

InvalidArgumentException

If the vertex ID is null or empty after processing.

ContainerExceptionInterface

If the DI container fails.

DependencyException

If a dependency is missing in the container.

NotFoundException

If the DI container cannot find a required service.

NotFoundExceptionInterface

Same as above, PSR-11 interface.

ReflectionException

If schema reflection fails.

Example

// $edges = Edges for 'user_follows_user'
$edges = new Edges($container, ['collection' => 'user_follows_user']);

// Get all followers and all followed users for 'users/1'
$allNeighbors = $edges->getAnyVertices('1');

Return values

object|array<string|int, mixed>|null —

Returns an array of vertex documents, a single vertex object if AQL::FIRST is true, or null if no vertices found.

getFirstAnyVertex()

Retrieves the first vertex connected in any direction from the given vertex.


    public
                    getFirstAnyVertex([string|null $vertex = null ][, array<string|int, mixed> $init = [] ]) : object|array<string|int, mixed>|null

This is a convenience method that wraps getAnyVertices() with the AQL::FIRST flag set to true, returning only the first vertex found in the ANY traversal of the current edge collection.

It executes an AQL query equivalent to:

FOR v IN ANY @vertex @@collection RETURN v

but only returns the first resulting vertex document (if any).

Parameters

$vertex : string|null = null

Optional '_key' or '_id' of the vertex to start from. If null, defaults to the current $this->from vertex reference.

$init : array<string|int, mixed> = []

Optional query initialization array, merged with [AQL::FIRST => true].

AQL::ANY_REF (string) : Context for ANY traversal when using a _key (AQL::FROM or AQL::TO). Defaults to AQL::FROM.
AQL::DOC_REF (string) : AQL variable name for the vertex (default: 'vertex').
AQL::FROM (Documents) : Override the default _from model instance.
AQL::GRAPH (string) : The name of a graph to use for traversal.
AQL::LIMIT (int) : Maximum number of vertices to return.
AQL::MAX_DEPTH (int) : Maximum traversal depth (requires AQL::GRAPH).
AQL::MIN_DEPTH (int) : Minimum traversal depth (requires AQL::GRAPH).
AQL::OFFSET (int) : Number of vertices to skip.
AQL::PRUNE (string|array) : AQL PRUNE condition for graph traversals (requires AQL::GRAPH).
AQL::RAW (bool) : Return raw array data. Defaults to true unless AQL::TARGET is specified.
AQL::RETURN (string) : Manually specify the AQL RETURN expression.
AQL::SORT (string|array) : Sorting criteria.
AQL::TARGET (Documents) : Manually specify a Document model for schema mapping.
AQL::TO (Documents) : Override the default _to model instance.
Additional bind variables can also be passed.

Return values

object|array<string|int, mixed>|null —

The first vertex document connected to the given vertex, or null if no edge exists.

getFirstInboundVertex()

Retrieves the first inbound vertex connected to the given 'to' vertex.


    public
                    getFirstInboundVertex([string|null $to = null ][, array<string|int, mixed> $init = [] ]) : object|array<string|int, mixed>|null

This is a convenience method that wraps getInboundVertices() with the AQL::FIRST flag set to true, returning only the first vertex found in the inbound traversal of the current edge collection.

It executes an AQL query equivalent to:

FOR v IN INBOUND @to @@collection RETURN v

but only returns the first resulting vertex document (if any).

Parameters

$to : string|null = null

Optional '_key' or '_id' of the vertex to traverse to. If null, defaults to the current $this->to vertex reference.

$init : array<string|int, mixed> = []

Optional query initialization array, merged with [AQL::FIRST => true].

AQL::DOC_REF (string) : AQL variable name for the vertex (default: 'vertex').
AQL::FROM (Documents) : Override the default _from model instance.
AQL::GRAPH (string) : The name of a graph to use for traversal.
AQL::LIMIT (int) : Maximum number of vertices to return.
AQL::MAX_DEPTH (int) : Maximum traversal depth (requires AQL::GRAPH).
AQL::MIN_DEPTH (int) : Minimum traversal depth (requires AQL::GRAPH).
AQL::OFFSET (int) : Number of vertices to skip.
AQL::PRUNE (string|array) : AQL PRUNE condition for graph traversals (requires AQL::GRAPH).
AQL::RAW (bool) : Return raw array data instead of mapped objects.
AQL::RETURN (string) : Manually specify the AQL RETURN expression.
AQL::SORT (string|array) : Sorting criteria.
AQL::TARGET (Documents) : Manually specify a Document model for schema mapping.
AQL::TO (Documents) : Override the default _to model instance.
Additional bind variables can also be passed.

Tags

throws

ArangoException

If there is an error executing the AQL query.

BindException

If a bind variable is missing or invalid.

ConstantException

If the $direction argument is not a valid Traversal constant.

InvalidArgumentException

If the vertex ID is null or empty after processing.

ContainerExceptionInterface

If the DI container fails.

DependencyException

If a dependency is missing in the container.

NotFoundException

If the DI container cannot find a required service.

NotFoundExceptionInterface

Same as above, PSR-11 interface.

ReflectionException

If schema reflection fails.

Example

// $edges = Edges for 'user_follows_user'
$edges = new Edges($container, ['collection' => 'user_follows_user']);

// Retrieve the first vertex that follows 'users/1' (their first follower)
$firstFollower = $edges->getFirstInboundVertex('users/1');

Return values

object|array<string|int, mixed>|null —

The first inbound vertex document connected to the given vertex, or null if no inbound edge exists.

getFirstOutboundVertex()

Retrieves the first outbound vertex connected from the given 'from' vertex.


    public
                    getFirstOutboundVertex([string|null $from = null ][, array<string|int, mixed> $init = [] ]) : object|array<string|int, mixed>|null

This is a convenience method that wraps getOutboundVertices() with the AQL::FIRST flag set to true, returning only the first vertex found in the outbound traversal of the current edge collection.

It executes an AQL query equivalent to:

FOR v IN OUTBOUND @from @@collection RETURN v

but only returns the first resulting vertex document (if any).

Parameters

$from : string|null = null

Optional '_key' or '_id' of the vertex to start from. If null, defaults to the current $this->from vertex reference.

$init : array<string|int, mixed> = []

Optional query initialization array, merged with [AQL::FIRST => true].

AQL::DOC_REF (string) : AQL variable name for the vertex (default: 'vertex').
AQL::FROM (Documents) : Override the default _from model instance.
AQL::GRAPH (string) : The name of a graph to use for traversal.
AQL::LIMIT (int) : Maximum number of vertices to return.
AQL::MAX_DEPTH (int) : Maximum traversal depth (requires AQL::GRAPH).
AQL::MIN_DEPTH (int) : Minimum traversal depth (requires AQL::GRAPH).
AQL::OFFSET (int) : Number of vertices to skip.
AQL::PRUNE (string|array) : AQL PRUNE condition for graph traversals (requires AQL::GRAPH).
AQL::RAW (bool) : Return raw array data instead of mapped objects.
AQL::RETURN (string) : Manually specify the AQL RETURN expression.
AQL::SORT (string|array) : Sorting criteria.
AQL::TARGET (Documents) : Manually specify a Document model for schema mapping.
AQL::TO (Documents) : Override the default _to model instance.
Additional bind variables can also be passed.

Tags

throws

ArangoException

If there is an error executing the AQL query.

BindException

If a bind variable is missing or invalid.

ConstantException

If the $direction argument is not a valid Traversal constant.

InvalidArgumentException

If the vertex ID is null or empty after processing.

ContainerExceptionInterface

If the DI container fails.

DependencyException

If a dependency is missing in the container.

NotFoundException

If the DI container cannot find a required service.

NotFoundExceptionInterface

Same as above, PSR-11 interface.

ReflectionException

If schema reflection fails.

Example

$edges = new Edges($container, ['collection' => 'user_follows']);

// Retrieve the first vertex that 'users/1' follows
$firstVertex = $edges->getFirstOutboundVertex('users/1');

if ($firstVertex) {
echo "First followed vertex: " . $firstVertex->_id . PHP_EOL;
}

Return values

object|array<string|int, mixed>|null —

The first outbound vertex document connected from the given vertex, or null if no outbound edge exists.

getInboundVertices()

Retrieves all inbound vertices connected to the given 'to' vertex.


    public
                    getInboundVertices([string|null $to = null ][, array<string|int, mixed> $init = [] ]) : object|array<string|int, mixed>|null

This method executes an AQL query to fetch vertices that are connected via incoming edges to the specified vertex in the current edge collection. It is a convenience wrapper for getVertices() with the direction set to Traversal::INBOUND.

Parameters

$to : string|null = null

Optional '_key' or '_id' of the vertex to traverse to. If null, defaults to the current $this->to vertex reference.

$init : array<string|int, mixed> = []

Optional array of query options:

AQL::DOC_REF (string) : AQL variable name for the vertex (default: 'vertex').
AQL::FIRST (bool) : Return only the first matched vertex.
AQL::FROM (Documents) : Override the default _from model instance.
AQL::GRAPH (string) : The name of a graph to use for traversal.
AQL::LIMIT (int) : Maximum number of vertices to return.
AQL::MAX_DEPTH (int) : Maximum traversal depth (requires AQL::GRAPH).
AQL::MIN_DEPTH (int) : Minimum traversal depth (requires AQL::GRAPH).
AQL::OFFSET (int) : Number of vertices to skip.
AQL::PRUNE (string|array) : AQL PRUNE condition for graph traversals (requires AQL::GRAPH).
AQL::RAW (bool) : Return raw array data instead of mapped objects.
AQL::RETURN (string) : Manually specify the AQL RETURN expression.
AQL::SORT (string|array) : Sorting criteria.
AQL::TARGET (Documents) : Manually specify a Document model for schema mapping (overrides default $from model).
AQL::TO (Documents) : Override the default _to model instance.
Additional bind variables can also be passed.

Tags

throws

ArangoException

If there is an error executing the AQL query.

BindException

If a bind variable is missing or invalid.

ConstantException

If the $direction argument is not a valid Traversal constant.

InvalidArgumentException

If the vertex ID is null or empty after processing.

ContainerExceptionInterface

If the DI container fails.

DependencyException

If a dependency is missing in the container.

NotFoundException

If the DI container cannot find a required service.

NotFoundExceptionInterface

Same as above, PSR-11 interface.

ReflectionException

If schema reflection fails.

Example

// $edges = Edges for 'user_follows_user'
$edges = new Edges($container, ['collection' => 'user_follows_user']);

// Get all vertices that follow 'users/1' (all followers)
$followers = $edges->getInboundVertices('1');

Return values

object|array<string|int, mixed>|null —

Returns an array of vertex documents, a single vertex object if AQL::FIRST is true, or null if no vertices found.

getOutboundVertices()

Retrieves all outbound vertices connected from the given 'from' vertex.


    public
                    getOutboundVertices([string|null $from = null ][, array<string|int, mixed> $init = [] ]) : object|array<string|int, mixed>|null

This method executes an AQL query to fetch vertices that are connected via outgoing edges from the specified vertex in the current edge collection. It is a convenience wrapper for getVertices() with the direction set to Traversal::OUTBOUND.

Parameters

$from : string|null = null

Optional '_key' or '_id' of the vertex to start from. If null, defaults to the current $this->from vertex reference.

$init : array<string|int, mixed> = []

Optional array of query options:

AQL::DOC_REF (string) : AQL variable name for the vertex (default: 'vertex').
AQL::FIRST (bool) : Return only the first matched vertex.
AQL::FROM (Documents) : Override the default _from model instance.
AQL::GRAPH (string) : The name of a graph to use for traversal.
AQL::LIMIT (int) : Maximum number of vertices to return.
AQL::MAX_DEPTH (int) : Maximum traversal depth (requires AQL::GRAPH).
AQL::MIN_DEPTH (int) : Minimum traversal depth (requires AQL::GRAPH).
AQL::OFFSET (int) : Number of vertices to skip.
AQL::PRUNE (string|array) : AQL PRUNE condition for graph traversals (requires AQL::GRAPH).
AQL::RAW (bool) : Return raw array data instead of mapped objects.
AQL::RETURN (string) : Manually specify the AQL RETURN expression.
AQL::SORT (string|array) : Sorting criteria.
AQL::TARGET (Documents) : Manually specify a Document model for schema mapping (overrides default $to model).
AQL::TO (Documents) : Override the default _to model instance.
Additional bind variables can also be passed.

Tags

throws

ArangoException

If there is an error executing the AQL query.

BindException

If a bind variable is missing or invalid.

ConstantException

If the $direction argument is not a valid Traversal constant.

InvalidArgumentException

If the vertex ID is null or empty after processing.

ContainerExceptionInterface

If the DI container fails.

DependencyException

If a dependency is missing in the container.

NotFoundException

If the DI container cannot find a required service.

NotFoundExceptionInterface

Same as above, PSR-11 interface.

ReflectionException

If schema reflection fails.

Example

$edges = new Edges($container, ['collection' => 'user_follows']);

// Get all outbound vertices from 'users/1'
$vertices = $edges->getOutboundVertices('1');

// Get only the first outbound vertex
$firstVertex = $edges->getOutboundVertices('1', [AQL::FIRST => true]);

Return values

object|array<string|int, mixed>|null —

Returns an array of vertex documents, a single vertex object if AQL::FIRST is true, or null if no vertices found.

getVertices()

Retrieves all vertices connected with a specific direction.


    public
                    getVertices(string $direction[, string|null $vertex = null ][, array<string|int, mixed> $init = [] ]) : object|array<string|int, mixed>|null

This method executes an AQL query to fetch vertices that are connected via edges from the specified vertex in the current edge collection. It supports standard collection traversal (FOR v IN ... @@collection) and named graph traversal (FOR v IN ... GRAPH 'graph_name').

It can optionally return only the first result, or a set of results as an array.

Parameters

$direction : string

The direction of the relation: Traversal::OUTBOUND, Traversal::INBOUND, or Traversal::ANY.

$vertex : string|null = null

Optional '_key' or '_id' of the vertex to start the relation from. If a full '_id' (e.g., "users/123") is provided, it is used directly (assumes vertexID handles this). If only a '_key' (e.g., "123") is provided, it will be prefixed based on context:

OUTBOUND: Uses the $from collection.
INBOUND: Uses the $to collection.
ANY: Uses the $from collection by default (configurable via AQL::ANY_REF).

$init : array<string|int, mixed> = []

Optional array of query options:

AQL::ANY_REF (string) : Context for ANY traversal when using a _key (AQL::FROM or AQL::TO). Defaults to AQL::FROM.
AQL::DOC_REF (string) : AQL variable name for the vertex (default: 'vertex').
AQL::FIRST (bool) : Return only the first matched vertex.
AQL::FROM (Documents) : Override the default _from model instance.
AQL::GRAPH (string) : The name of a graph to use for traversal (enables graph-specific options).
AQL::LIMIT (int) : Maximum number of vertices to return.
AQL::MAX_DEPTH (int) : Maximum traversal depth (requires AQL::GRAPH).
AQL::MIN_DEPTH (int) : Minimum traversal depth (requires AQL::GRAPH).
AQL::OFFSET (int) : Number of vertices to skip (for pagination).
AQL::PRUNE (string|array) : AQL PRUNE condition for graph traversals (requires AQL::GRAPH).
AQL::RAW (bool) : Return raw array data. Defaults to true for ANY traversals unless AQL::TARGET is specified.
AQL::RETURN (string) : Manually specify the AQL RETURN expression (e.g., "v.name"). Overrides model-defined returnFields.
AQL::SORT (string|array) : Sorting criteria (e.g., "vertex.name ASC"). Overrides model-defined prepareSort.
AQL::TARGET (Documents) : Manually specify a Document model for schema mapping, especially useful for ANY traversals.
AQL::TO (Documents) : Override the default _to model instance.
Additional bind variables can also be passed.

Tags

throws

ArangoException

If there is an error executing the AQL query.

BindException

If a bind variable is missing or invalid.

ConstantException

If the $direction argument is not a valid Traversal constant.

InvalidArgumentException

If the vertex ID is null or empty after processing.

ContainerExceptionInterface

If the DI container fails.

DependencyException

If a dependency is missing in the container.

NotFoundException

If the DI container cannot find a required service.

NotFoundExceptionInterface

Same as above, PSR-11 interface.

ReflectionException

If schema reflection fails.

example

Assumes $edges collection connects 'users' ($from) to 'groups' ($to)

$edges = new Edges($container, ['collection' => 'user_joins_group']);

Get all outbound vertices (groups) from 'users/1'

$vertices = $edges->getVertices( Traversal::OUTBOUND , '1' ) ;

Get only the first outbound vertex

$firstVertex = $edges->getVertices( Traversal::OUTBOUND , '1' , [AQL::FIRST => true] ) ;

Get all inbound vertices (users) from 'groups/1'

$vertices = $edges->getVertices( Traversal::INBOUND , '1' ) ;

Get all 'any' vertices from 'users/1' (works with a full _id)

$vertices = $edges->getVertices( Traversal::ANY , 'users/1' ) ;

Get 'any' vertices using _key '1'.

$vertices = $edges->getVertices( Traversal::ANY , '1' ) ;

Note : By default, it assumes '1' is a 'user' (AQL::FROM) -> 'users/1'

Force 'any' traversal to use '1' as a 'group' (AQL::TO) -> 'groups/1'

$vertices = $edges->getVertices
(
    Traversal::ANY ,
    '1' ,
    [ AQL::ANY_REF => AQL::TO ]
);

Get outbound vertices using a named graph 'my_graph'

$vertices = $edges->getVertices
(
    Traversal::OUTBOUND ,
    'users/1' ,
    [ AQL::GRAPH => 'my_graph' ]
);

Get raw outbound vertices sorted by name

$vertices = $edges->getVertices
(
    Traversal::OUTBOUND ,
    'users/1' ,
    [ AQL::RAW => true, AQL::SORT => 'vertex.name ASC' ]
);

Permission

When an AQL::TARGET (or a resolved _to/_from) Documents model projects the vertices, its Field::REQUIRES / AQL::REQUIRES gates are enforced: the request authorizer carried in $init[ Arango::AUTHORIZER ] is propagated into the target's returnFields(), so a field or relation hidden from reading stays hidden through the traversal (no field oracle via edges). Fail-open when no authorizer is injected. Only the authorizer is forwarded — the target keeps its own projection defaults.

see

PrepareTraversalTrait

Return values

object|array<string|int, mixed>|null —

Returns an array of vertex documents or a single vertex object if AQL::FIRST is true.

hasAnyVertex()

Checks if a specific target vertex is a neighbor in any direction.


    public
                    hasAnyVertex(string $source, string $target[, array<string|int, mixed> $init = [] ]) : bool

Parameters

$source : string: The '_key' or '_id' of the vertex to start from.
$target : string: The '_key' or '_id' of the target vertex to check for.
$init : array<string|int, mixed> = []: Optional array of query options (e.g., AQL::GRAPH).

Return values

bool —

True if the target vertex is a neighbor, false otherwise.

hasInboundVertex()

Checks if a specific target vertex is an inbound neighbor of the start vertex.


    public
                    hasInboundVertex(string $to, string $from[, array<string|int, mixed> $init = [] ]) : bool

Parameters

$to : string: The '_key' or '_id' of the vertex to traverse to (start vertex).
$from : string: The '_key' or '_id' of the target vertex to check for.
$init : array<string|int, mixed> = []: Optional array of query options (e.g., AQL::GRAPH).

Return values

bool —

True if the target vertex is an inbound neighbor, false otherwise.

hasOutboundVertex()

Checks if a specific target vertex is an outbound neighbor of the start vertex.


    public
                    hasOutboundVertex(string $from, string $to[, array<string|int, mixed> $init = [] ]) : bool

Parameters

$from : string: The '_key' or '_id' of the vertex to start from.
$to : string: The '_key' or '_id' of the target vertex to check for.
$init : array<string|int, mixed> = []: Optional array of query options (e.g., AQL::GRAPH).

Return values

bool —

True if the target vertex is an outbound neighbor, false otherwise.

initializeArrays()

Initialize the per-field embedded-array configuration from the `arrays` option.


    public
                    initializeArrays([array<string|int, mixed> $init = [] ]) : static

Each entry is either an ArrayMode shorthand ('tags' => ArrayMode::SET) or a richer definition ('tracks' => [ ArrayMode::LIST , Arango::COUNTER => 'numberOfTracks' ]).

Parameters

$init : array<string|int, mixed> = []

Return values

static

initializeDocumentsMethods()

Initialize the Documents HTTP methods signals.


    public
                    initializeDocumentsMethods() : static

Return values

static

initializeFields()

Initialize fields definitions from an associative array.


    public
                    initializeFields([array<string, mixed> $init = [] ]) : static

Parameters

$init : array<string, mixed> = []: Optional initialization array containing a 'fields' key.

Return values

static

initializeInvalidations()

Connects `afterInsert` / `afterUpdate` / `afterDelete` to the declared services.


    public
                    initializeInvalidations(array<string, mixed> $init, ContainerInterface $container) : static

Called at the end of the Documents constructor, AFTER the signals exist — initializeDocumentsMethods() creates them.

The closure resolves each service from the container at EMISSION time, not at boot: a dependent typically depends on this very model, and an eager resolution here would be circular. By the time a write fires the signal, the model is fully built.

Parameters

$init : array<string, mixed>: The model init.
$container : ContainerInterface: The DI container.

Return values

static

initializePurge()

Initialize the purge property from an array or string.


    public
                    initializePurge([array<string|int, mixed>|string|null $init = null ]) : static

Parameters

$init : array<string|int, mixed>|string|null = null: If array, looks for the key AQL::PURGE; if string, directly sets the purge mode.

Return values

static

initializeSkinFields()

Initialize the per-skin projections registry from an associative array.


    public
                    initializeSkinFields([array<string, mixed> $init = [] ]) : static

Parameters

$init : array<string, mixed> = []: Optional initialization array containing an AQL::SKIN_FIELDS key.

Return values

static

insertEdge()

Inserts a new edge document connecting two vertices, optionally checking for uniqueness.


    public
                    insertEdge(string $from, string $to[, array<string|int, mixed> $doc = [] ][, array<string|int, mixed> $init = [] ]) : object|null

Constructs the edge document (_from, _to, attributes) and delegates to the generic insert() method. By default, it first checks if an edge with the same _from and _to already exists using existEdge() and throws an Error409 if found. This behavior can be disabled via the AQL::UNIQUE option.

Parameters

$from : string

The _key or full _id of the source vertex. Resolved using $this->from context if only a key is given.

$to : string

The _key or full _id of the target vertex. Resolved using $this->to context if only a key is given.

$doc : array<string|int, mixed> = []

Optional additional document to complete the edge document (e.g., ['createdAt' => time()]).

$init : array<string|int, mixed> = []

Optional array for query options:

AQL::UNIQUE (bool) : If true (default), checks for an existing edge between $from and $to before inserting. Throws Error409 if found. If false, attempts direct insert (faster, relies on DB index or allows duplicates).
AQL::OPTIONS (array): Options passed to the underlying ArangoDB INSERT operation (see InsertOptions).
Other options accepted by the underlying insert() method (e.g., AQL::EXCLUDES).

Tags

throws

ArangoException

If the underlying AQL query execution fails.

BindException

If binding variables fails during the insert() process.

ContainerExceptionInterface

DateInvalidTimeZoneException

DateMalformedStringException

DependencyException

Error409

If AQL::UNIQUE is true and an edge already exists between the resolved $from and $to.

NotFoundException

NotFoundExceptionInterface

ReflectionException

UnsupportedOperationException

Throwable

example

$edges = new Edges($container, ['collection' => 'user_follows']);

// Insert, will throw Error409 if edge already exists
try
{
    $newEdge = $edges->insertEdge('users/1', 'users/2', ['since' => date('Y-m-d')]);
    if ($newEdge)
    {
        echo "Edge created with _id: " . $newEdge->_id;
    }
} catch ( Error409 $e )
{
     echo "$e->getMessage() ;
}

// Insert without checking uniqueness
$newEdgeUnchecked = $edges->insertEdge('users/1', 'users/3', [], [ AQL::UNIQUE => false ]);

Return values

object|null —

The newly inserted edge document object , or null on failure.

prepareQueryFields()

Prepares query fields based on internal definitions and optional skin filter.


    public
                    prepareQueryFields([array<string|int, mixed>|null $fields = null ][, string|null $skin = null ][, string|null $parentKey = null ][, string|array<string|int, mixed>|null $in = null ]) : array<string, array<string|int, mixed>>|null

Converts string filters to array format, applies skins, and normalizes each field. When $fields is null and the model declares a $skinFields registry, the projection is resolved per skin first ([$skin] → ['*'] → $fields — the same order as an edge/join AQL::SKIN_FIELDS). The skin filter applies at every nesting level : the sub-fields of a WRAP, DOCUMENT or MAP definition are prepared with the same skin, so a nested Field::SKINS marker is honored in depth. A structural field whose declared sub-fields are all removed by the skin — or whose own AQL::SKIN_FIELDS table resolves to nothing for the requested skin — is dropped from the result.

Parameters

$fields : array<string|int, mixed>|null = null: Optional custom fields to process (defaults to $this->fields).
$skin : string|null = null: Optional skin to filter applicable fields.
$parentKey : string|null = null: Optional parent key definition.
$in : string|array<string|int, mixed>|null = null: Optional field or list of fields to filter the final fields definitions.

Tags

example

$fields = $model->prepareQueryFields('full');
// Returns normalized array of fields including only those matching the 'full' skin

Return values

array<string, array<string|int, mixed>>|null —

Normalized fields ready for query, or null if none.

repair()

Reconciles the server with everything this model declares — the acting half of {@see diagnose()}:


    public
                    repair([bool $force = false ]) : array<string|int, DiffReport>

a missing collection is created with its declared type and its declared indexes (exactly what the lazy provisioning would do);
missing indexes are created on an existing collection — the case the lazy provisioning never covers; a drifted index is only rebuilt (drop + recreate) when $force is true, because the rebuild opens a window where queries lose the index and a unique index may fail to recreate over duplicated data;
the View is created or resynchronized through SearchTrait::viewSync() (updateProperties(), the View stays queryable while re-indexing).

DiffStatus::INVALID and DiffStatus::UNREACHABLE reports are never acted on; a drifted collection type is never repaired (recreating a collection means losing its documents — that is a migration, not a repair).

Parameters

$force : bool = false: Allow the drop + recreate of drifted indexes.

Return values

array<string|int, DiffReport> —

The diagnose() reports, with $applied set on every object actually created or updated.

returnFields()

Generates an AQL document expression or LET statement with the selected fields.


    public
                    returnFields([array<string, mixed> $init = [] ][, array<string|int, mixed> &$variables = [] ][, bool $isVariable = false ]) : string

Supports edges, joins, skins, and query fields.

Parameters

$init : array<string, mixed> = []

Options to customize the query:

string|array $fields: comma-separated list or array of field names
?array $queryFields: prepared query fields (overrides internal $fields)
?string $lang: optional language key
string $docRef: document reference name
bool $isResult: whether to assign to result variable

$variables : array<string|int, mixed> = []

$isVariable : bool = false

Whether to generate a LET statement instead of RETURN

Tags

throws

ContainerExceptionInterface

NotFoundExceptionInterface

Exception

example

$aql = $model->returnFields
([
    Arango::QUERY_FIELDS => $queryFields,
    Arango::DOC_REF      => 'doc',
    Arango::SKIN         => 'full'
]);

Return values

string —

Compiled AQL query fragment

arrayCounter()

Returns the configured length-counter attribute of an array field, or null.


    protected
                    arrayCounter(string|null $field) : string|null

Parameters

$field : string|null

Return values

string|null

arrayItemKey()

Resolves the item-key attribute of an array field — the attribute carried by each element that identifies it — honouring an optional per-call `itemKey` override, then the declared configuration, then defaulting to null.


    protected
                    arrayItemKey(string|null $field[, array<string|int, mixed> $init = [] ]) : string|null

A null result means the field is targeted by value (the historical behaviour); a non-null one switches the element-level operations to a key match.

The resolved name is interpolated verbatim into the generated AQL (the array expansion helpers do no escaping), so it is validated here — whatever its origin — against assertAttributeName().

Parameters

$field : string|null
$init : array<string|int, mixed> = []

Return values

string|null —

The validated item-key attribute, or null when the field is targeted by value.

arrayMode()

Resolves the {@see ArrayMode} of an array field, honouring an optional per-call `mode` override, then the declared configuration, then defaulting to LIST.


    protected
                    arrayMode(string|null $field[, array<string|int, mixed> $init = [] ]) : string

Parameters

$field : string|null
$init : array<string|int, mixed> = []

Return values

string

arrayPositionKey()

Resolves the position-key attribute of an array field — the attribute of each element carrying its rank — honouring an optional per-call `positionKey` override, then the declared configuration, then defaulting to null.


    protected
                    arrayPositionKey(string|null $field[, array<string|int, mixed> $init = [] ]) : string|null

A null result means the field is never renumbered (the historical behaviour); a non-null one makes every write rewrite that attribute from the element indices.

The resolved name is interpolated verbatim into the generated AQL, so it is validated here — whatever its origin — against assertAttributeName(). It is additionally required to be a flat name: unlike an item key, which is only ever read, a position key is written back, and a dotted path would produce a single attribute literally named meta.position instead of a nested one.

Parameters

$field : string|null
$init : array<string|int, mixed> = []

Return values

string|null —

The validated position-key attribute, or null when the field is not renumbered.

arrayWith()

Builds the `WITH { ... }` object clause: the array field, its optional length counter, and the `modified` timestamp unless `touch` is disabled.


    protected
                    arrayWith(string|null $field, string $arrayVar[, array<string|int, mixed> $init = [] ]) : string

Parameters

$field : string|null: The array attribute name.
$arrayVar : string: The AQL variable holding the new array (see self::ARRAY_VAR).
$init : array<string|int, mixed> = []

Return values

string

countEdgesQuery()

Generates the count query and fill the binds array reference.


    protected
                    countEdgesQuery([string|null $from = null ][, string|null $to = null ][, array<string|int, mixed> &$binds = [] ][, array<string|int, mixed> $init = [] ]) : string

Parameters

$from : string|null = null

The from vertex identifier

$to : string|null = null

The to vertex identifier

$binds : array<string|int, mixed> = []

The bindVars array reference.

$init : array<string|int, mixed> = []

The option of the method.

'collection' : The name of the collection, by default use the $this->collection property.
'name' : The name of the bindVariable collection, by default use the @@collection.
'operator' : Indicates if the filter of the vertices use a Logic::AND or Logic::OR operator (default Logic::AND)
'variableName' : The name of the document in the query (default 'doc') AQL::DOC_REF

Tags

throws

BindException

ReflectionException

example

[ $query , $binds ] = $this->countEdgeQuery( $from , $to ) ;

Return values

string —

The AQL query expression.

ensureArrayDefaults()

Builds an `ensure` closure that seeds the declared array fields to `[]` (and their counters to `0`) for any missing key of a document being created, then applies the optional user-supplied `ensure`. Returns the user closure unchanged when no array field is declared (so models without `AQL::ARRAYS` are untouched).


    protected
                    ensureArrayDefaults([Closure|null $ensure = null ]) : Closure|null

Parameters

$ensure : Closure|null = null: An optional user ensure closure to compose with.

Return values

Closure|null

arrayErasedKeys()

The attributes a patch asks to be taken away — the keys it carries at null.


    private
                    arrayErasedKeys(mixed $patch) : array<int, string>

Only the top level is read, like AQL UNSET() itself: a null sitting inside a sub-object of the patch is a value, not an erasure. An element loses one whole attribute at a time, never half of one.

🚨 The names are interpolated verbatim into the generated AQL — UNSET() takes string literals, not binds — so each one goes through the same guard as every other attribute name this trait emits. A patch carrying an integer key (a list cast to an object) names no attribute and is skipped.

Parameters

$patch : mixed: The patch handed to self::arrayUpdate().

Return values

array<int, string> —

The attribute names to remove, possibly empty.

arrayRank()

Appends the renumbering `LET` to the given clauses when the field declares an {@see Arango::POSITION_KEY}, and returns them along with the AQL variable holding the array to write back.


    private
                    arrayRank(string|null $field, array<string|int, mixed> $lets, array<string|int, mixed> $init) : array{0: array, 1: string}

Generated AQL:

LET __pos = LENGTH(__arr) == 0 ? [] : (FOR __i IN 0 .. LENGTH(__arr) - 1 RETURN MERGE(NTH(__arr,__i),{ position: __i }))

It always runs last, on the array every operation has already produced: the field invariant is therefore applied before the ranks, which matters on a ArrayMode::SET — renumbering makes every element distinct, so a UNIQUE() running after it would no longer collapse anything. For the same reason, a patch carrying the position attribute loses against the renumbering.

The empty-array branch is not cosmetic: 0 .. LENGTH(__arr) - 1 becomes 0 .. -1 on an empty array, which AQL reads as a descending range and expands to [0, -1] — two phantom elements would be ranked into the document.

Shared by runArrayUpdate() and arrayPurgeRef(), which compiles its own collection-wide query: a purge would otherwise leave gaps in the numbering.

Parameters

$field : string|null: The array attribute name.
$lets : array<string|int, mixed>: The clauses produced by the operation, ending with self::ARRAY_VAR.
$init : array<string|int, mixed>

Return values

array{0: array, 1: string} —

The clauses, and the variable holding the array to write.

filterFieldsBySkin()

Filters fields based on an optional skin.


    private
                    filterFieldsBySkin(array<string, mixed> $fields, string|null $skin) : array<string, mixed>

Parameters

$fields : array<string, mixed>: Fields to filter
$skin : string|null: Skin to match

Return values

array<string, mixed> —

Filtered fields

generateUniqueKey()

Generates a unique key for special filters like edges, joins, or unique names.


    private
                    generateUniqueKey(string $key, string|null $filter[, string|null $parentKey = null ]) : string|null

Parameters

$key : string: Base field key
$filter : string|null: Filter type
$parentKey : string|null = null: Optional parent key.

Return values

string|null —

Generated unique key or existing

hasVertex()

Private helper to check for vertex existence in a specific direction.


    private
                    hasVertex(string $direction, string $startVertex, string $targetVertex[, array<string|int, mixed> $init = [] ]) : bool

This method builds the filter query to check if a $targetVertex exists in the results of a traversal from $startVertex.

Parameters

$direction : string: Traversal::OUTBOUND, Traversal::INBOUND, or Traversal::ANY
$startVertex : string: The _key or _id of the vertex to start from.
$targetVertex : string: The _key or _id of the vertex to find.
$init : array<string|int, mixed> = []: Optional query options.

Return values

bool

normalizeFieldDefinition()

Normalize a field definition into a structured array for queries.


    private
                    normalizeFieldDefinition(string $key[, array<string|int, mixed> $options = [] ][, string|null $parentKey = null ][, string|null $skin = null ]) : array<string, mixed>|null

Converts string filters to array
Handles subfields for DOCUMENT or MAP filters
Generates unique keys for special filters

The sub-fields of a structural filter (WRAP, DOCUMENT, MAP) are prepared recursively with the SAME skin, so a Field::SKINS marker on a nested sub-field is honored at every depth — with the level-one rules: a sub-field without a marker is always kept, and a null skin keeps everything. When the skin filters out ALL the declared sub-fields, the method returns null and the field itself is dropped from the projection (key absent).

A structural field can also declare per-skin alternative sub-projections through AQL::SKIN_FIELDS (same table shape and resolution order as an edge/join definition). A declared table that resolves to nothing for the requested skin drops the field the same way (returns null).

Parameters

$key : string

Field name

$options : array<string|int, mixed> = []

Field options, may include:

Field::FILTER
Field::NAME
Field::QUOTED
Field::FIELDS (for DOCUMENT or MAP)

$parentKey : string|null = null

The Optional parent key

$skin : string|null = null

Optional skin propagated to the nested sub-fields.

Tags

example

$normalized = $this->normalizeFieldDefinition( 'permissions',
[
    Field::FILTER => Filter::EDGES,
    Field::SKINS => [Skin::FULL]
]);

Return values

array<string, mixed>|null —

Normalized field definition, or null when the skin removed every declared sub-field.

runArrayUpdate()

Compiles and executes a single-document array UPDATE (`FOR ... FILTER ... LET ... UPDATE ... RETURN NEW`), emitting the update signals around the write.


    private
                    runArrayUpdate(string|null $field, array<string|int, mixed> $lets, string $filter, array<string|int, mixed> &$binds, array<string|int, mixed> $init) : object|null

Parameters

$field : string|null: The array attribute name.
$lets : array<string|int, mixed>: The ordered LET clauses producing the self::ARRAY_VAR variable.
$filter : string: The FILTER predicate locating the document.
$binds : array<string|int, mixed>: The bind variables (mutated by reference).
$init : array<string|int, mixed>

Return values

object|null

Edges extends Documents uses EdgesPurgeTrait, EdgesCountTrait, EdgesDeleteTrait, EdgesExistTrait, EdgesGetTrait, EdgesInsertTrait

Tags

Table of Contents

Constants

Properties

Methods

Constants

EDGE_SUFFIX

FIELDS

JOIN_SUFFIX

UNIQUE_SUFFIX

ARRAY_VAR

ELEMENT_VAR

INDEX_VAR

KEY_VAR

ORDERED_VAR

RANKED_VAR

REMAINDER_VAR

NORMALIZED_MARKERS

Properties

$arrays

$fields

Tags

$purge virtual

Hooks

$skinFields

Tags

$_purge

Methods

__construct()

Parameters

Tags

__destruct()

arrayContains()

Parameters

Tags

Return values

arrayDefaults()

Return values

arrayInsert()

Parameters

Tags

Return values

arrayMove()

Parameters

Tags

Return values

arrayPurgeRef()

Parameters

Tags

Return values

arrayRemove()

Parameters

Tags

Return values

arrayReorder()

Parameters

Tags

Return values

arrayUpdate()

Parameters

Tags

Return values

countAnyVertices()

Parameters

Tags

Return values

countEdges()

Parameters

Tags

Return values

countInboundVertices()

Parameters

Tags

Return values

countOutboundVertices()

Parameters

Tags

Return values

countVertices()