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<?php |
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/** |
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* components |
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* |
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* @author Wolfy-J |
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*/ |
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namespace Spiral\ODM; |
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use MongoDB\BSON\ObjectID; |
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use Spiral\Core\Component; |
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use Spiral\Core\Exceptions\ScopeException; |
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use Spiral\Core\Traits\SaturateTrait; |
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use Spiral\Models\AccessorInterface; |
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use Spiral\Models\SchematicEntity; |
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use Spiral\Models\Traits\SolidStateTrait; |
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use Spiral\ODM\Entities\DocumentCompositor; |
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use Spiral\ODM\Entities\DocumentInstantiator; |
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use Spiral\ODM\Exceptions\AccessorException; |
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use Spiral\ODM\Exceptions\AggregationException; |
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use Spiral\ODM\Exceptions\FieldException; |
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use Spiral\ODM\Helpers\AggregationHelper; |
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use Spiral\ODM\Schemas\Definitions\CompositionDefinition; |
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/** |
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* Primary class for spiral ODM, provides ability to pack it's own updates in a form of atomic |
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* updates. |
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* |
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* You can use same properties to configure entity as in DataEntity + schema property. |
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* |
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* Example: |
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* |
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* class Test extends DocumentEntity |
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* { |
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* const SCHEMA = [ |
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* 'name' => 'string' |
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* ]; |
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* } |
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* |
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* Configuration properties: |
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* - schema |
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* - defaults |
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* - secured (* by default) |
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* - fillable |
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*/ |
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abstract class DocumentEntity extends SchematicEntity implements CompositableInterface |
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{ |
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use SaturateTrait, SolidStateTrait; |
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/** |
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* Set of schema sections needed to describe entity behaviour. |
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*/ |
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const SH_INSTANTIATION = 0; |
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const SH_DEFAULTS = 1; |
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const SH_COMPOSITIONS = 6; |
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const SH_AGGREGATIONS = 7; |
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/** |
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* Constants used to describe aggregation relations (also used internally to identify |
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* composition). |
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* |
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* Example: |
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* 'items' => [self::MANY => Item::class, ['parentID' => 'key::_id']] |
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* |
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* @see DocumentEntity::SCHEMA |
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*/ |
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const MANY = 778; |
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const ONE = 899; |
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/** |
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* Class responsible for instance construction. |
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*/ |
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const INSTANTIATOR = DocumentInstantiator::class; |
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/** |
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* Document fields, accessors and relations. ODM will generate setters and getters for some |
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* fields based on their types. |
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* |
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* Example, fields: |
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* const SCHEMA = [ |
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* '_id' => 'MongoId', //Primary key field |
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* 'value' => 'string', //Default string field |
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* 'values' => ['string'] //ScalarArray accessor will be applied for fields like that |
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* ]; |
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* |
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* Compositions: |
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* const SCHEMA = [ |
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* ..., |
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* 'child' => Child::class, //One document are composited, for example user Profile |
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* 'many' => [Child::class] //Compositor accessor will be applied, allows to |
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* //composite many document instances |
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* ]; |
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* |
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* Documents can extend each other, in this case schema will also be inherited. |
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* |
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* Attention, make sure you properly set FILLABLE option in parent class to use constructions |
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* like: |
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* $parent->child = [...]; |
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* |
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* or |
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* $parent->setFields(['child'=>[...]]); |
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* |
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* @var array |
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*/ |
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const SCHEMA = []; |
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/** |
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* Default field values. |
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* |
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* @var array |
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*/ |
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const DEFAULTS = []; |
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/** |
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* Model behaviour configurations. |
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*/ |
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const SECURED = '*'; |
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const HIDDEN = []; |
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const FILLABLE = []; |
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const SETTERS = []; |
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const GETTERS = []; |
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const ACCESSORS = []; |
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/** |
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* Document behaviour schema. |
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* |
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* @var array |
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*/ |
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private $schema = []; |
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/** |
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* Document field updates (changed values). |
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* |
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* @var array |
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*/ |
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private $updates = []; |
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/** |
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* Parent ODM instance, responsible for aggregations and lazy loading operations. |
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* |
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* @invisible |
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* @var ODMInterface |
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*/ |
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protected $odm; |
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/** |
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* {@inheritdoc} |
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* |
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* @param ODMInterface $odm To lazy create nested document ang aggregations. |
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* |
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* @throws ScopeException When no ODM instance can be resolved. |
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*/ |
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public function __construct($fields = [], array $schema = null, ODMInterface $odm = null) |
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{ |
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//We can use global container as fallback if no default values were provided |
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$this->odm = $this->saturate($odm, ODMInterface::class); |
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//Use supplied schema or fetch one from ODM |
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$this->schema = !empty($schema) ? $schema : $this->odm->define( |
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static::class, |
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ODMInterface::D_SCHEMA |
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); |
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$fields = is_array($fields) ? $fields : []; |
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if (!empty($this->schema[self::SH_DEFAULTS])) { |
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//Merging with default values |
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$fields = array_replace_recursive($this->schema[self::SH_DEFAULTS], $fields); |
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} |
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parent::__construct($fields, $this->schema); |
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} |
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/** |
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* {@inheritdoc} |
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* |
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* Tracks field changes. |
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*/ |
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public function setField(string $name, $value, bool $filter = true) |
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{ |
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if (!$this->hasField($name)) { |
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//We are only allowing to modify existed fields, this is strict schema |
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throw new FieldException("Undefined field '{$name}' in '" . static::class . "'"); |
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} |
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//Original field value |
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$original = $this->getField($name, null, false); |
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parent::setField($name, $value, $filter); |
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if (!array_key_exists($name, $this->updates)) { |
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//Let's keep track of how field looked before first change |
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$this->updates[$name] = $original instanceof AccessorInterface |
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? $original->packValue() |
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: $original; |
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} |
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} |
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/** |
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* {@inheritdoc} |
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* |
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* Will restore default value if presented. |
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*/ |
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public function __unset($offset) |
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{ |
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if (!$this->isNullable($offset)) { |
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throw new FieldException("Unable to unset not nullable field '{$offset}'"); |
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} |
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$this->setField($offset, null, false); |
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} |
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/** |
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* Provides ability to invoke document aggregation. |
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* |
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* @param string $method |
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* @param array $arguments |
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* |
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* @return mixed|null|AccessorInterface|CompositableInterface|Document|Entities\DocumentSelector |
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*/ |
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public function __call(string $method, array $arguments) |
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{ |
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if (isset($this->schema[self::SH_AGGREGATIONS][$method])) { |
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if (!empty($arguments)) { |
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throw new AggregationException("Aggregation method call except 0 parameters"); |
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} |
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$helper = new AggregationHelper($this, $this->schema, $this->odm); |
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return $helper->createAggregation($method); |
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} |
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return parent::__call($method, $arguments); |
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} |
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/** |
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* {@inheritdoc} |
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* |
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* @param string $field Check once specific field changes. |
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*/ |
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public function hasUpdates(string $field = null): bool |
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{ |
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//Check updates for specific field |
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if (!empty($field)) { |
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if (array_key_exists($field, $this->updates)) { |
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return true; |
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} |
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//Do not force accessor creation |
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$value = $this->getField($field, null, false); |
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if ($value instanceof CompositableInterface && $value->hasUpdates()) { |
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return true; |
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} |
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return false; |
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} |
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if (!empty($this->updates)) { |
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return true; |
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} |
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//Do not force accessor creation |
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foreach ($this->getFields(false) as $value) { |
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//Checking all fields for changes (handled internally) |
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if ($value instanceof CompositableInterface && $value->hasUpdates()) { |
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return true; |
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} |
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} |
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return false; |
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} |
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/** |
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* {@inheritdoc} |
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*/ |
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public function buildAtomics(string $container = null): array |
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{ |
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if (!$this->hasUpdates() && !$this->isSolid()) { |
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return []; |
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} |
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if ($this->isSolid()) { |
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if (!empty($container)) { |
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//Simple nested document in solid state |
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return ['$set' => $this->packValue(false)]; |
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} |
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//No parent container |
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return ['$set' => $this->packValue(false)]; |
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} |
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//Aggregate atomics from every nested composition |
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$atomics = []; |
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foreach ($this->getFields(false) as $field => $value) { |
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if ($value instanceof CompositableInterface) { |
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$atomics = array_merge_recursive( |
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$atomics, |
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$value->buildAtomics((!empty($container) ? $container . '.' : '') . $field) |
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); |
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continue; |
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} |
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foreach ($atomics as $atomic => $operations) { |
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if (array_key_exists($field, $operations) && $atomic != '$set') { |
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//Property already changed by atomic operation |
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continue; |
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} |
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} |
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if (array_key_exists($field, $this->updates)) { |
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//Generating set operation for changed field |
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$atomics['$set'][(!empty($container) ? $container . '.' : '') . $field] = $value; |
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} |
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} |
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return $atomics; |
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} |
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/** |
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* {@inheritdoc} |
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*/ |
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public function flushUpdates() |
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{ |
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$this->updates = []; |
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foreach ($this->getFields(false) as $value) { |
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if ($value instanceof CompositableInterface) { |
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$value->flushUpdates(); |
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} |
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} |
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} |
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/** |
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* {@inheritdoc} |
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* |
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* @param bool $includeID Set to false to exclude _id from packed fields. |
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*/ |
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public function packValue(bool $includeID = true) |
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{ |
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$values = parent::packValue(); |
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if (!$includeID) { |
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unset($values['_id']); |
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} |
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return $values; |
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} |
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/** |
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* Since most of ODM documents might contain ObjectIDs and other fields we will try to normalize |
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* them into string values. |
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* |
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* @return array |
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*/ |
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public function publicFields(): array |
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{ |
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$public = parent::publicFields(); |
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array_walk_recursive($public, function (&$value) { |
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if ($value instanceof ObjectID) { |
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$value = (string)$value; |
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} |
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}); |
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return $public; |
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} |
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/** |
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* Cloning will be called when object will be embedded into another document. |
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*/ |
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public function __clone() |
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{ |
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//Since document embedded as one piece let's ensure that it is solid |
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$this->solidState = true; |
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//De-serialize document in order to ensure that all compositions are recreated |
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$this->setValue($this->packValue()); |
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} |
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/** |
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* @return array |
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*/ |
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public function __debugInfo() |
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{ |
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return [ |
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'fields' => $this->getFields(), |
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'atomics' => $this->hasUpdates() ? $this->buildAtomics() : [] |
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]; |
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} |
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/** |
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* {@inheritdoc} |
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* |
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* @see CompositionDefinition |
395
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*/ |
396
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View Code Duplication |
protected function getMutator(string $field, string $mutator) |
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397
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{ |
398
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/** |
399
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* Every document composition is valid accessor but defined a bit differently. |
400
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*/ |
401
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if (isset($this->schema[self::SH_COMPOSITIONS][$field])) { |
402
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return $this->schema[self::SH_COMPOSITIONS][$field]; |
403
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} |
404
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405
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return parent::getMutator($field, $mutator); |
406
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} |
407
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408
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/** |
409
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* {@inheritdoc} |
410
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*/ |
411
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protected function isNullable(string $field): bool |
412
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{ |
413
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if (array_key_exists($field, $this->schema[self::SH_DEFAULTS])) { |
414
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//Only fields with default null value can be nullable |
415
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return is_null($this->schema[self::SH_DEFAULTS][$field]); |
416
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} |
417
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418
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//You can redefine custom logic to indicate what fields are nullable |
419
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return false; |
420
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} |
421
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422
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/** |
423
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* {@inheritdoc} |
424
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* |
425
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* DocumentEntity will pass ODM instance as part of accessor context. |
426
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* |
427
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* @see CompositionDefinition |
428
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*/ |
429
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protected function createAccessor( |
430
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$accessor, |
431
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string $field, |
432
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$value, |
433
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array $context = [] |
434
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): AccessorInterface { |
435
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if (is_array($accessor)) { |
436
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//We are working with definition of composition. |
437
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switch ($accessor[0]) { |
438
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case self::ONE: |
439
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//Singular embedded document |
440
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return $this->odm->instantiate($accessor[1], $value); |
441
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case self::MANY: |
442
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return new DocumentCompositor($accessor[1], $value, $this->odm); |
443
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} |
444
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445
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throw new AccessorException("Invalid accessor definition for field '{$field}'"); |
446
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} |
447
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448
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//Field as a context |
449
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return parent::createAccessor($accessor, $field, $value, $context + ['odm' => $this->odm]); |
450
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} |
451
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452
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/** |
453
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* {@inheritdoc} |
454
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*/ |
455
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protected function iocContainer() |
456
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{ |
457
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if (!empty($this->odm) || $this->odm instanceof Component) { |
458
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|
//Forwarding IoC scope to parent ODM instance |
459
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|
return $this->odm->iocContainer(); |
460
|
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} |
461
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462
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return parent::iocContainer(); |
463
|
|
|
} |
464
|
|
|
} |