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<?php |
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namespace Volosyuk\SimpleEloquent\Relations; |
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use Illuminate\Database\Eloquent\Model; |
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use Illuminate\Support\Arr; |
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use Illuminate\Support\Str; |
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use Illuminate\Database\Eloquent\Builder; |
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/** |
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* Include relations definitions to eloquent |
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* |
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* @package Volosyuk\SimpleEloquent |
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*/ |
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trait HasRelationships |
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{ |
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/** |
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* Define a one-to-one relationship. |
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* |
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* @param string $related |
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* @param string $foreignKey |
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* @param string $localKey |
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* @return HasOne |
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*/ |
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public function hasOne($related, $foreignKey = null, $localKey = null) |
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{ |
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/** |
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* @var Model $instance |
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*/ |
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$instance = $this->newRelatedInstance($related); |
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$foreignKey = $foreignKey ?: $this->getForeignKey(); |
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$localKey = $localKey ?: $this->getKeyName(); |
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return $this->newHasOne($instance->newQuery(), $this, $instance->getTable().'.'.$foreignKey, $localKey); |
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} |
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/** |
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* Instantiate a new HasOne relationship. |
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* |
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* @param Builder $query |
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* @param Model $parent |
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* @param string $foreignKey |
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* @param string $localKey |
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* @return HasOne |
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*/ |
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protected function newHasOne(Builder $query, Model $parent, $foreignKey, $localKey) |
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{ |
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return new HasOne($query, $parent, $foreignKey, $localKey); |
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} |
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/** |
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* Define a polymorphic one-to-one relationship. |
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* |
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* @param string $related |
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* @param string $name |
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* @param string $type |
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* @param string $id |
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* @param string $localKey |
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* @return MorphOne |
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*/ |
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public function morphOne($related, $name, $type = null, $id = null, $localKey = null) |
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{ |
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/** |
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* @var Model $instance |
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*/ |
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$instance = $this->newRelatedInstance($related); |
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list($type, $id) = $this->getMorphs($name, $type, $id); |
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$table = $instance->getTable(); |
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$localKey = $localKey ?: $this->getKeyName(); |
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return $this->newMorphOne($instance->newQuery(), $this, $table.'.'.$type, $table.'.'.$id, $localKey); |
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} |
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/** |
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* Instantiate a new MorphOne relationship. |
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* |
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* @param Builder $query |
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* @param Model $parent |
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* @param string $type |
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* @param string $id |
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* @param string $localKey |
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* @return MorphOne |
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*/ |
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protected function newMorphOne(Builder $query, Model $parent, $type, $id, $localKey) |
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{ |
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return new MorphOne($query, $parent, $type, $id, $localKey); |
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} |
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/** |
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* Define an inverse one-to-one or many relationship. |
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* |
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* @param string $related |
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* @param string $foreignKey |
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* @param string $ownerKey |
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* @param string $relation |
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* @return BelongsTo |
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*/ |
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public function belongsTo($related, $foreignKey = null, $ownerKey = null, $relation = null) |
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{ |
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if (is_null($relation)) { |
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$relation = $this->guessBelongsToRelation(); |
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} |
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/** |
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* @var Model $instance |
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*/ |
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$instance = $this->newRelatedInstance($related); |
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if (is_null($foreignKey)) { |
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$foreignKey = Str::snake($relation).'_'.$instance->getKeyName(); |
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} |
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$ownerKey = $ownerKey ?: $instance->getKeyName(); |
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return $this->newBelongsTo( |
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$instance->newQuery(), $this, $foreignKey, $ownerKey, $relation |
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); |
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} |
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/** |
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* Instantiate a new BelongsTo relationship. |
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* |
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* @param Builder $query |
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* @param Model $child |
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* @param string $foreignKey |
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* @param string $ownerKey |
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* @param string $relation |
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* @return BelongsTo |
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*/ |
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protected function newBelongsTo(Builder $query, Model $child, $foreignKey, $ownerKey, $relation) |
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{ |
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return new BelongsTo($query, $child, $foreignKey, $ownerKey, $relation); |
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} |
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/** |
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* Define a polymorphic, inverse one-to-one or many relationship. |
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* |
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* @param string $name |
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* @param string $type |
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* @param string $id |
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* @param string $ownerKey |
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* @return MorphTo |
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*/ |
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public function morphTo($name = null, $type = null, $id = null, $ownerKey = null) |
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{ |
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$name = $name ?: $this->guessBelongsToRelation(); |
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list($type, $id) = $this->getMorphs( |
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Str::snake($name), $type, $id |
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); |
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return empty($class = $this->{$type}) |
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? $this->morphEagerTo($name, $type, $id, $ownerKey) |
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: $this->morphInstanceTo($class, $name, $type, $id, $ownerKey); |
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} |
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/** |
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* Define a polymorphic, inverse one-to-one or many relationship. |
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* |
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* @param string $name |
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* @param string $type |
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* @param string $id |
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* @param string $ownerKey |
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* @return MorphTo |
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*/ |
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protected function morphEagerTo($name, $type, $id, $ownerKey) |
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{ |
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return $this->newMorphTo( |
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$this->newQuery()->setEagerLoads([]), $this, $id, $ownerKey, $type, $name |
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); |
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} |
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/** |
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* Define a polymorphic, inverse one-to-one or many relationship. |
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* |
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* @param string $target |
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* @param string $name |
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* @param string $type |
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* @param string $id |
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* @param string $ownerKey |
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* @return MorphTo |
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*/ |
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protected function morphInstanceTo($target, $name, $type, $id, $ownerKey) |
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{ |
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/** |
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* @var Model $instance |
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*/ |
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$instance = $this->newRelatedInstance( |
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static::getActualClassNameForMorph($target) |
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); |
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return $this->newMorphTo( |
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$instance->newQuery(), $this, $id, $ownerKey ?? $instance->getKeyName(), $type, $name |
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); |
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} |
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/** |
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* Instantiate a new MorphTo relationship. |
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* |
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* @param Builder $query |
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* @param Model $parent |
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* @param string $foreignKey |
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* @param string $ownerKey |
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* @param string $type |
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* @param string $relation |
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* @return MorphTo |
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*/ |
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protected function newMorphTo(Builder $query, Model $parent, $foreignKey, $ownerKey, $type, $relation) |
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{ |
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return new MorphTo($query, $parent, $foreignKey, $ownerKey, $type, $relation); |
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} |
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/** |
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* Retrieve the actual class name for a given morph class. |
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* |
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* @param string $class |
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* @return string |
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*/ |
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public static function getActualClassNameForMorph($class) |
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{ |
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return Arr::get(Relation::morphMap() ?: [], $class, $class); |
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} |
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/** |
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* Guess the "belongs to" relationship name. |
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* |
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* @return string |
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*/ |
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protected function guessBelongsToRelation() |
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{ |
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list($one, $two, $caller) = debug_backtrace(DEBUG_BACKTRACE_IGNORE_ARGS, 3); |
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return $caller['function']; |
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} |
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/** |
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* Define a one-to-many relationship. |
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* |
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* @param string $related |
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* @param string $foreignKey |
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* @param string $localKey |
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* @return HasMany |
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*/ |
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public function hasMany($related, $foreignKey = null, $localKey = null) |
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{ |
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/** |
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* @var Model $instance |
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*/ |
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$instance = $this->newRelatedInstance($related); |
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$foreignKey = $foreignKey ?: $this->getForeignKey(); |
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$localKey = $localKey ?: $this->getKeyName(); |
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return $this->newHasMany( |
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$instance->newQuery(), $this, $instance->getTable().'.'.$foreignKey, $localKey |
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); |
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} |
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/** |
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* Instantiate a new HasMany relationship. |
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* |
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* @param Builder $query |
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* @param Model $parent |
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* @param string $foreignKey |
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* @param string $localKey |
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* @return HasMany |
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*/ |
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protected function newHasMany(Builder $query, Model $parent, $foreignKey, $localKey) |
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{ |
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return new HasMany($query, $parent, $foreignKey, $localKey); |
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} |
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/** |
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* Define a has-many-through relationship. |
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* |
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* @param string $related |
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* @param string $through |
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* @param string|null $firstKey |
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* @param string|null $secondKey |
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* @param string|null $localKey |
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* @param string|null $secondLocalKey |
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* @return HasManyThrough |
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*/ |
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public function hasManyThrough($related, $through, $firstKey = null, $secondKey = null, $localKey = null, $secondLocalKey = null) |
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{ |
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/** |
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* @var Model $through |
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*/ |
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$through = new $through; |
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$firstKey = $firstKey ?: $this->getForeignKey(); |
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$secondKey = $secondKey ?: $through->getForeignKey(); |
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return $this->newHasManyThrough( |
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$this->newRelatedInstance($related)->newQuery(), $this, $through, |
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$firstKey, $secondKey, $localKey ?: $this->getKeyName(), |
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$secondLocalKey ?: $through->getKeyName() |
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); |
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} |
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/** |
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* Instantiate a new HasManyThrough relationship. |
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* |
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* @param Builder $query |
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* @param Model $farParent |
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* @param Model $throughParent |
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* @param string $firstKey |
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* @param string $secondKey |
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* @param string $localKey |
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* @param string $secondLocalKey |
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* @return HasManyThrough |
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*/ |
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protected function newHasManyThrough(Builder $query, Model $farParent, Model $throughParent, $firstKey, $secondKey, $localKey, $secondLocalKey) |
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{ |
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return new HasManyThrough($query, $farParent, $throughParent, $firstKey, $secondKey, $localKey, $secondLocalKey); |
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} |
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/** |
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* Define a polymorphic one-to-many relationship. |
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* |
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* @param string $related |
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* @param string $name |
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* @param string $type |
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* @param string $id |
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* @param string $localKey |
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* @return MorphMany |
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*/ |
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public function morphMany($related, $name, $type = null, $id = null, $localKey = null) |
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{ |
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/** |
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* @var Model $instance |
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*/ |
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$instance = $this->newRelatedInstance($related); |
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list($type, $id) = $this->getMorphs($name, $type, $id); |
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$table = $instance->getTable(); |
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$localKey = $localKey ?: $this->getKeyName(); |
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return $this->newMorphMany($instance->newQuery(), $this, $table.'.'.$type, $table.'.'.$id, $localKey); |
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} |
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/** |
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* Instantiate a new MorphMany relationship. |
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* |
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* @param Builder $query |
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* @param Model $parent |
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* @param string $type |
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* @param string $id |
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* @param string $localKey |
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* @return MorphMany |
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*/ |
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protected function newMorphMany(Builder $query, Model $parent, $type, $id, $localKey) |
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{ |
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return new MorphMany($query, $parent, $type, $id, $localKey); |
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} |
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/** |
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* Define a many-to-many relationship. |
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* |
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|
* @param string $related |
370
|
|
|
* @param string $table |
371
|
|
|
* @param string $foreignPivotKey |
372
|
|
|
* @param string $relatedPivotKey |
373
|
|
|
* @param string $parentKey |
374
|
|
|
* @param string $relatedKey |
375
|
|
|
* @param string $relation |
376
|
|
|
* @return BelongsToMany |
377
|
|
|
*/ |
378
|
1 |
|
public function belongsToMany($related, $table = null, $foreignPivotKey = null, $relatedPivotKey = null, |
379
|
|
|
$parentKey = null, $relatedKey = null, $relation = null) |
380
|
|
|
{ |
381
|
1 |
|
if (is_null($relation)) { |
382
|
1 |
|
$relation = $this->guessBelongsToManyRelation(); |
383
|
|
|
} |
384
|
|
|
|
385
|
|
|
/** |
386
|
|
|
* @var Model $instance |
387
|
|
|
*/ |
388
|
1 |
|
$instance = $this->newRelatedInstance($related); |
389
|
|
|
|
390
|
1 |
|
$foreignPivotKey = $foreignPivotKey ?: $this->getForeignKey(); |
391
|
|
|
|
392
|
1 |
|
$relatedPivotKey = $relatedPivotKey ?: $instance->getForeignKey(); |
393
|
|
|
|
394
|
1 |
|
if (is_null($table)) { |
395
|
|
|
$table = $this->joiningTable($related); |
396
|
|
|
} |
397
|
|
|
|
398
|
1 |
|
return $this->newBelongsToMany( |
399
|
1 |
|
$instance->newQuery(), $this, $table, $foreignPivotKey, |
|
|
|
|
400
|
1 |
|
$relatedPivotKey, $parentKey ?: $this->getKeyName(), |
401
|
1 |
|
$relatedKey ?: $instance->getKeyName(), $relation |
402
|
|
|
); |
403
|
|
|
} |
404
|
|
|
|
405
|
|
|
/** |
406
|
|
|
* Instantiate a new BelongsToMany relationship. |
407
|
|
|
* |
408
|
|
|
* @param Builder $query |
409
|
|
|
* @param Model $parent |
410
|
|
|
* @param string $table |
411
|
|
|
* @param string $foreignPivotKey |
412
|
|
|
* @param string $relatedPivotKey |
413
|
|
|
* @param string $parentKey |
414
|
|
|
* @param string $relatedKey |
415
|
|
|
* @param string $relationName |
416
|
|
|
* @return BelongsToMany |
417
|
|
|
*/ |
418
|
1 |
|
protected function newBelongsToMany(Builder $query, Model $parent, $table, $foreignPivotKey, $relatedPivotKey, |
419
|
|
|
$parentKey, $relatedKey, $relationName = null) |
420
|
|
|
{ |
421
|
1 |
|
return new BelongsToMany($query, $parent, $table, $foreignPivotKey, $relatedPivotKey, $parentKey, $relatedKey, $relationName); |
422
|
|
|
} |
423
|
|
|
|
424
|
|
|
/** |
425
|
|
|
* Define a polymorphic many-to-many relationship. |
426
|
|
|
* |
427
|
|
|
* @param string $related |
428
|
|
|
* @param string $name |
429
|
|
|
* @param string $table |
430
|
|
|
* @param string $foreignPivotKey |
431
|
|
|
* @param string $relatedPivotKey |
432
|
|
|
* @param string $parentKey |
433
|
|
|
* @param string $relatedKey |
434
|
|
|
* @param bool $inverse |
435
|
|
|
* @return MorphToMany |
436
|
|
|
*/ |
437
|
2 |
|
public function morphToMany($related, $name, $table = null, $foreignPivotKey = null, |
438
|
|
|
$relatedPivotKey = null, $parentKey = null, |
439
|
|
|
$relatedKey = null, $inverse = false) |
440
|
|
|
{ |
441
|
2 |
|
$caller = $this->guessBelongsToManyRelation(); |
442
|
|
|
|
443
|
|
|
/** |
444
|
|
|
* @var Model $instance |
445
|
|
|
*/ |
446
|
2 |
|
$instance = $this->newRelatedInstance($related); |
447
|
|
|
|
448
|
2 |
|
$foreignPivotKey = $foreignPivotKey ?: $name.'_id'; |
449
|
|
|
|
450
|
2 |
|
$relatedPivotKey = $relatedPivotKey ?: $instance->getForeignKey(); |
451
|
|
|
|
452
|
2 |
|
$table = $table ?: Str::plural($name); |
453
|
|
|
|
454
|
2 |
|
return $this->newMorphToMany( |
455
|
2 |
|
$instance->newQuery(), $this, $name, $table, |
|
|
|
|
456
|
2 |
|
$foreignPivotKey, $relatedPivotKey, $parentKey ?: $this->getKeyName(), |
457
|
2 |
|
$relatedKey ?: $instance->getKeyName(), $caller, $inverse |
458
|
|
|
); |
459
|
|
|
} |
460
|
|
|
|
461
|
|
|
/** |
462
|
|
|
* Instantiate a new HasManyThrough relationship. |
463
|
|
|
* |
464
|
|
|
* @param Builder $query |
465
|
|
|
* @param Model $parent |
466
|
|
|
* @param string $name |
467
|
|
|
* @param string $table |
468
|
|
|
* @param string $foreignPivotKey |
469
|
|
|
* @param string $relatedPivotKey |
470
|
|
|
* @param string $parentKey |
471
|
|
|
* @param string $relatedKey |
472
|
|
|
* @param string $relationName |
473
|
|
|
* @param bool $inverse |
474
|
|
|
* @return MorphToMany |
475
|
|
|
*/ |
476
|
2 |
|
protected function newMorphToMany(Builder $query, Model $parent, $name, $table, $foreignPivotKey, |
477
|
|
|
$relatedPivotKey, $parentKey, $relatedKey, |
478
|
|
|
$relationName = null, $inverse = false) |
479
|
|
|
{ |
480
|
2 |
|
return new MorphToMany($query, $parent, $name, $table, $foreignPivotKey, $relatedPivotKey, $parentKey, $relatedKey, |
481
|
2 |
|
$relationName, $inverse); |
482
|
|
|
} |
483
|
|
|
|
484
|
|
|
/** |
485
|
|
|
* Define a polymorphic, inverse many-to-many relationship. |
486
|
|
|
* |
487
|
|
|
* @param string $related |
488
|
|
|
* @param string $name |
489
|
|
|
* @param string $table |
490
|
|
|
* @param string $foreignPivotKey |
491
|
|
|
* @param string $relatedPivotKey |
492
|
|
|
* @param string $parentKey |
493
|
|
|
* @param string $relatedKey |
494
|
|
|
* @return MorphToMany |
495
|
|
|
*/ |
496
|
1 |
|
public function morphedByMany($related, $name, $table = null, $foreignPivotKey = null, |
497
|
|
|
$relatedPivotKey = null, $parentKey = null, $relatedKey = null) |
498
|
|
|
{ |
499
|
1 |
|
$foreignPivotKey = $foreignPivotKey ?: $this->getForeignKey(); |
500
|
|
|
|
501
|
1 |
|
$relatedPivotKey = $relatedPivotKey ?: $name.'_id'; |
502
|
|
|
|
503
|
1 |
|
return $this->morphToMany( |
504
|
1 |
|
$related, $name, $table, $foreignPivotKey, |
505
|
1 |
|
$relatedPivotKey, $parentKey, $relatedKey, true |
506
|
|
|
); |
507
|
|
|
} |
508
|
|
|
|
509
|
|
|
|
510
|
|
|
/** |
511
|
|
|
* Get the relationship name of the belongs to many. |
512
|
|
|
* |
513
|
|
|
* @return string |
514
|
|
|
*/ |
515
|
|
|
protected function guessBelongsToManyRelation() |
516
|
|
|
{ |
517
|
3 |
|
$caller = Arr::first(debug_backtrace(DEBUG_BACKTRACE_IGNORE_ARGS), function ($trace) { |
518
|
3 |
|
return ! in_array($trace['function'], Model::$manyMethods); |
519
|
3 |
|
}); |
520
|
|
|
|
521
|
3 |
|
return ! is_null($caller) ? $caller['function'] : null; |
522
|
|
|
} |
523
|
|
|
|
524
|
|
|
/** |
525
|
|
|
* Get the joining table name for a many-to-many relation. |
526
|
|
|
* |
527
|
|
|
* @param string $related |
528
|
|
|
* @return string |
529
|
|
|
*/ |
530
|
|
|
public function joiningTable($related) |
531
|
|
|
{ |
532
|
|
|
$models = [ |
533
|
|
|
Str::snake(class_basename($related)), |
534
|
|
|
Str::snake(class_basename($this)), |
535
|
|
|
]; |
536
|
|
|
|
537
|
|
|
sort($models); |
538
|
|
|
|
539
|
|
|
return strtolower(implode('_', $models)); |
540
|
|
|
} |
541
|
|
|
} |
542
|
|
|
|