928 lines
30 KiB
PHP
928 lines
30 KiB
PHP
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<?php
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namespace Illuminate\Database\Eloquent\Concerns;
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use Closure;
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use Illuminate\Database\ClassMorphViolationException;
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use Illuminate\Database\Eloquent\Builder;
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use Illuminate\Database\Eloquent\Collection;
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use Illuminate\Database\Eloquent\Model;
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use Illuminate\Database\Eloquent\PendingHasThroughRelationship;
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use Illuminate\Database\Eloquent\Relations\BelongsTo;
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use Illuminate\Database\Eloquent\Relations\BelongsToMany;
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use Illuminate\Database\Eloquent\Relations\HasMany;
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use Illuminate\Database\Eloquent\Relations\HasManyThrough;
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use Illuminate\Database\Eloquent\Relations\HasOne;
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use Illuminate\Database\Eloquent\Relations\HasOneThrough;
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use Illuminate\Database\Eloquent\Relations\MorphMany;
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use Illuminate\Database\Eloquent\Relations\MorphOne;
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use Illuminate\Database\Eloquent\Relations\MorphTo;
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use Illuminate\Database\Eloquent\Relations\MorphToMany;
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use Illuminate\Database\Eloquent\Relations\Pivot;
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use Illuminate\Database\Eloquent\Relations\Relation;
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use Illuminate\Support\Arr;
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use Illuminate\Support\Str;
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trait HasRelationships
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{
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/**
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* The loaded relationships for the model.
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*
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* @var array
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*/
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protected $relations = [];
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/**
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* The relationships that should be touched on save.
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*
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* @var array
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*/
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protected $touches = [];
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/**
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* The many to many relationship methods.
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*
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* @var string[]
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*/
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public static $manyMethods = [
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'belongsToMany', 'morphToMany', 'morphedByMany',
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];
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/**
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* The relation resolver callbacks.
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*
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* @var array
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*/
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protected static $relationResolvers = [];
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/**
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* Get the dynamic relation resolver if defined or inherited, or return null.
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*
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* @param string $class
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* @param string $key
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* @return mixed
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*/
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public function relationResolver($class, $key)
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{
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if ($resolver = static::$relationResolvers[$class][$key] ?? null) {
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return $resolver;
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}
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if ($parent = get_parent_class($class)) {
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return $this->relationResolver($parent, $key);
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}
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return null;
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}
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/**
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* Define a dynamic relation resolver.
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*
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* @param string $name
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* @param \Closure $callback
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* @return void
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*/
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public static function resolveRelationUsing($name, Closure $callback)
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{
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static::$relationResolvers = array_replace_recursive(
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static::$relationResolvers,
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[static::class => [$name => $callback]]
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);
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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|null $foreignKey
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* @param string|null $localKey
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* @return \Illuminate\Database\Eloquent\Relations\HasOne
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*/
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public function hasOne($related, $foreignKey = null, $localKey = null)
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{
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$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 \Illuminate\Database\Eloquent\Builder $query
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* @param \Illuminate\Database\Eloquent\Model $parent
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* @param string $foreignKey
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* @param string $localKey
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* @return \Illuminate\Database\Eloquent\Relations\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 has-one-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 $secondLocalKey
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* @return \Illuminate\Database\Eloquent\Relations\HasOneThrough
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*/
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public function hasOneThrough($related, $through, $firstKey = null, $secondKey = null, $localKey = null, $secondLocalKey = null)
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{
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$through = $this->newRelatedThroughInstance($through);
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$firstKey = $firstKey ?: $this->getForeignKey();
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$secondKey = $secondKey ?: $through->getForeignKey();
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return $this->newHasOneThrough(
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$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 HasOneThrough relationship.
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*
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* @param \Illuminate\Database\Eloquent\Builder $query
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* @param \Illuminate\Database\Eloquent\Model $farParent
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* @param \Illuminate\Database\Eloquent\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 \Illuminate\Database\Eloquent\Relations\HasOneThrough
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*/
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protected function newHasOneThrough(Builder $query, Model $farParent, Model $throughParent, $firstKey, $secondKey, $localKey, $secondLocalKey)
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{
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return new HasOneThrough($query, $farParent, $throughParent, $firstKey, $secondKey, $localKey, $secondLocalKey);
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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|null $type
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* @param string|null $id
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* @param string|null $localKey
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* @return \Illuminate\Database\Eloquent\Relations\MorphOne
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*/
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public function morphOne($related, $name, $type = null, $id = null, $localKey = null)
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{
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$instance = $this->newRelatedInstance($related);
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[$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 \Illuminate\Database\Eloquent\Builder $query
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* @param \Illuminate\Database\Eloquent\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 \Illuminate\Database\Eloquent\Relations\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|null $foreignKey
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* @param string|null $ownerKey
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* @param string|null $relation
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* @return \Illuminate\Database\Eloquent\Relations\BelongsTo
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*/
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public function belongsTo($related, $foreignKey = null, $ownerKey = null, $relation = null)
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{
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// If no relation name was given, we will use this debug backtrace to extract
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// the calling method's name and use that as the relationship name as most
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// of the time this will be what we desire to use for the relationships.
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if (is_null($relation)) {
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$relation = $this->guessBelongsToRelation();
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}
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$instance = $this->newRelatedInstance($related);
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// If no foreign key was supplied, we can use a backtrace to guess the proper
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// foreign key name by using the name of the relationship function, which
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// when combined with an "_id" should conventionally match the columns.
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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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// Once we have the foreign key names we'll just create a new Eloquent query
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// for the related models and return the relationship instance which will
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// actually be responsible for retrieving and hydrating every relation.
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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 \Illuminate\Database\Eloquent\Builder $query
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* @param \Illuminate\Database\Eloquent\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 \Illuminate\Database\Eloquent\Relations\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|null $name
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* @param string|null $type
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* @param string|null $id
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* @param string|null $ownerKey
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* @return \Illuminate\Database\Eloquent\Relations\MorphTo
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*/
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public function morphTo($name = null, $type = null, $id = null, $ownerKey = null)
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{
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// If no name is provided, we will use the backtrace to get the function name
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// since that is most likely the name of the polymorphic interface. We can
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// use that to get both the class and foreign key that will be utilized.
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$name = $name ?: $this->guessBelongsToRelation();
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[$type, $id] = $this->getMorphs(
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Str::snake($name), $type, $id
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);
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// If the type value is null it is probably safe to assume we're eager loading
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// the relationship. In this case we'll just pass in a dummy query where we
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// need to remove any eager loads that may already be defined on a model.
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return is_null($class = $this->getAttributeFromArray($type)) || $class === ''
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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 $ownerKey
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* @return \Illuminate\Database\Eloquent\Relations\MorphTo
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*/
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protected function morphEagerTo($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 $ownerKey
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* @return \Illuminate\Database\Eloquent\Relations\MorphTo
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*/
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protected function morphInstanceTo($target, $name, $type, $id, $ownerKey)
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{
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$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 \Illuminate\Database\Eloquent\Builder $query
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* @param \Illuminate\Database\Eloquent\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 \Illuminate\Database\Eloquent\Relations\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, $class);
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}
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/**
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* Guess the "belongs to" relationship name.
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*
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* @return string
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*/
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protected function guessBelongsToRelation()
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{
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[$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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||
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/**
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||
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* Create a pending has-many-through or has-one-through relationship.
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||
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*
|
||
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* @param string|\Illuminate\Database\Eloquent\Relations\HasMany|\Illuminate\Database\Eloquent\Relations\HasOne $relationship
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* @return \Illuminate\Database\Eloquent\PendingHasThroughRelationship
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||
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*/
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||
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public function through($relationship)
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||
|
|
{
|
||
|
|
if (is_string($relationship)) {
|
||
|
|
$relationship = $this->{$relationship}();
|
||
|
|
}
|
||
|
|
|
||
|
|
return new PendingHasThroughRelationship($this, $relationship);
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Define a one-to-many relationship.
|
||
|
|
*
|
||
|
|
* @param string $related
|
||
|
|
* @param string|null $foreignKey
|
||
|
|
* @param string|null $localKey
|
||
|
|
* @return \Illuminate\Database\Eloquent\Relations\HasMany
|
||
|
|
*/
|
||
|
|
public function hasMany($related, $foreignKey = null, $localKey = null)
|
||
|
|
{
|
||
|
|
$instance = $this->newRelatedInstance($related);
|
||
|
|
|
||
|
|
$foreignKey = $foreignKey ?: $this->getForeignKey();
|
||
|
|
|
||
|
|
$localKey = $localKey ?: $this->getKeyName();
|
||
|
|
|
||
|
|
return $this->newHasMany(
|
||
|
|
$instance->newQuery(), $this, $instance->getTable().'.'.$foreignKey, $localKey
|
||
|
|
);
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Instantiate a new HasMany relationship.
|
||
|
|
*
|
||
|
|
* @param \Illuminate\Database\Eloquent\Builder $query
|
||
|
|
* @param \Illuminate\Database\Eloquent\Model $parent
|
||
|
|
* @param string $foreignKey
|
||
|
|
* @param string $localKey
|
||
|
|
* @return \Illuminate\Database\Eloquent\Relations\HasMany
|
||
|
|
*/
|
||
|
|
protected function newHasMany(Builder $query, Model $parent, $foreignKey, $localKey)
|
||
|
|
{
|
||
|
|
return new HasMany($query, $parent, $foreignKey, $localKey);
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Define a has-many-through relationship.
|
||
|
|
*
|
||
|
|
* @param string $related
|
||
|
|
* @param string $through
|
||
|
|
* @param string|null $firstKey
|
||
|
|
* @param string|null $secondKey
|
||
|
|
* @param string|null $localKey
|
||
|
|
* @param string|null $secondLocalKey
|
||
|
|
* @return \Illuminate\Database\Eloquent\Relations\HasManyThrough
|
||
|
|
*/
|
||
|
|
public function hasManyThrough($related, $through, $firstKey = null, $secondKey = null, $localKey = null, $secondLocalKey = null)
|
||
|
|
{
|
||
|
|
$through = $this->newRelatedThroughInstance($through);
|
||
|
|
|
||
|
|
$firstKey = $firstKey ?: $this->getForeignKey();
|
||
|
|
|
||
|
|
$secondKey = $secondKey ?: $through->getForeignKey();
|
||
|
|
|
||
|
|
return $this->newHasManyThrough(
|
||
|
|
$this->newRelatedInstance($related)->newQuery(),
|
||
|
|
$this,
|
||
|
|
$through,
|
||
|
|
$firstKey,
|
||
|
|
$secondKey,
|
||
|
|
$localKey ?: $this->getKeyName(),
|
||
|
|
$secondLocalKey ?: $through->getKeyName()
|
||
|
|
);
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Instantiate a new HasManyThrough relationship.
|
||
|
|
*
|
||
|
|
* @param \Illuminate\Database\Eloquent\Builder $query
|
||
|
|
* @param \Illuminate\Database\Eloquent\Model $farParent
|
||
|
|
* @param \Illuminate\Database\Eloquent\Model $throughParent
|
||
|
|
* @param string $firstKey
|
||
|
|
* @param string $secondKey
|
||
|
|
* @param string $localKey
|
||
|
|
* @param string $secondLocalKey
|
||
|
|
* @return \Illuminate\Database\Eloquent\Relations\HasManyThrough
|
||
|
|
*/
|
||
|
|
protected function newHasManyThrough(Builder $query, Model $farParent, Model $throughParent, $firstKey, $secondKey, $localKey, $secondLocalKey)
|
||
|
|
{
|
||
|
|
return new HasManyThrough($query, $farParent, $throughParent, $firstKey, $secondKey, $localKey, $secondLocalKey);
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Define a polymorphic one-to-many relationship.
|
||
|
|
*
|
||
|
|
* @param string $related
|
||
|
|
* @param string $name
|
||
|
|
* @param string|null $type
|
||
|
|
* @param string|null $id
|
||
|
|
* @param string|null $localKey
|
||
|
|
* @return \Illuminate\Database\Eloquent\Relations\MorphMany
|
||
|
|
*/
|
||
|
|
public function morphMany($related, $name, $type = null, $id = null, $localKey = null)
|
||
|
|
{
|
||
|
|
$instance = $this->newRelatedInstance($related);
|
||
|
|
|
||
|
|
// Here we will gather up the morph type and ID for the relationship so that we
|
||
|
|
// can properly query the intermediate table of a relation. Finally, we will
|
||
|
|
// get the table and create the relationship instances for the developers.
|
||
|
|
[$type, $id] = $this->getMorphs($name, $type, $id);
|
||
|
|
|
||
|
|
$table = $instance->getTable();
|
||
|
|
|
||
|
|
$localKey = $localKey ?: $this->getKeyName();
|
||
|
|
|
||
|
|
return $this->newMorphMany($instance->newQuery(), $this, $table.'.'.$type, $table.'.'.$id, $localKey);
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Instantiate a new MorphMany relationship.
|
||
|
|
*
|
||
|
|
* @param \Illuminate\Database\Eloquent\Builder $query
|
||
|
|
* @param \Illuminate\Database\Eloquent\Model $parent
|
||
|
|
* @param string $type
|
||
|
|
* @param string $id
|
||
|
|
* @param string $localKey
|
||
|
|
* @return \Illuminate\Database\Eloquent\Relations\MorphMany
|
||
|
|
*/
|
||
|
|
protected function newMorphMany(Builder $query, Model $parent, $type, $id, $localKey)
|
||
|
|
{
|
||
|
|
return new MorphMany($query, $parent, $type, $id, $localKey);
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Define a many-to-many relationship.
|
||
|
|
*
|
||
|
|
* @param string $related
|
||
|
|
* @param string|null $table
|
||
|
|
* @param string|null $foreignPivotKey
|
||
|
|
* @param string|null $relatedPivotKey
|
||
|
|
* @param string|null $parentKey
|
||
|
|
* @param string|null $relatedKey
|
||
|
|
* @param string|null $relation
|
||
|
|
* @return \Illuminate\Database\Eloquent\Relations\BelongsToMany
|
||
|
|
*/
|
||
|
|
public function belongsToMany($related, $table = null, $foreignPivotKey = null, $relatedPivotKey = null,
|
||
|
|
$parentKey = null, $relatedKey = null, $relation = null)
|
||
|
|
{
|
||
|
|
// If no relationship name was passed, we will pull backtraces to get the
|
||
|
|
// name of the calling function. We will use that function name as the
|
||
|
|
// title of this relation since that is a great convention to apply.
|
||
|
|
if (is_null($relation)) {
|
||
|
|
$relation = $this->guessBelongsToManyRelation();
|
||
|
|
}
|
||
|
|
|
||
|
|
// First, we'll need to determine the foreign key and "other key" for the
|
||
|
|
// relationship. Once we have determined the keys we'll make the query
|
||
|
|
// instances as well as the relationship instances we need for this.
|
||
|
|
$instance = $this->newRelatedInstance($related);
|
||
|
|
|
||
|
|
$foreignPivotKey = $foreignPivotKey ?: $this->getForeignKey();
|
||
|
|
|
||
|
|
$relatedPivotKey = $relatedPivotKey ?: $instance->getForeignKey();
|
||
|
|
|
||
|
|
// If no table name was provided, we can guess it by concatenating the two
|
||
|
|
// models using underscores in alphabetical order. The two model names
|
||
|
|
// are transformed to snake case from their default CamelCase also.
|
||
|
|
if (is_null($table)) {
|
||
|
|
$table = $this->joiningTable($related, $instance);
|
||
|
|
}
|
||
|
|
|
||
|
|
return $this->newBelongsToMany(
|
||
|
|
$instance->newQuery(), $this, $table, $foreignPivotKey,
|
||
|
|
$relatedPivotKey, $parentKey ?: $this->getKeyName(),
|
||
|
|
$relatedKey ?: $instance->getKeyName(), $relation
|
||
|
|
);
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Instantiate a new BelongsToMany relationship.
|
||
|
|
*
|
||
|
|
* @param \Illuminate\Database\Eloquent\Builder $query
|
||
|
|
* @param \Illuminate\Database\Eloquent\Model $parent
|
||
|
|
* @param string $table
|
||
|
|
* @param string $foreignPivotKey
|
||
|
|
* @param string $relatedPivotKey
|
||
|
|
* @param string $parentKey
|
||
|
|
* @param string $relatedKey
|
||
|
|
* @param string|null $relationName
|
||
|
|
* @return \Illuminate\Database\Eloquent\Relations\BelongsToMany
|
||
|
|
*/
|
||
|
|
protected function newBelongsToMany(Builder $query, Model $parent, $table, $foreignPivotKey, $relatedPivotKey,
|
||
|
|
$parentKey, $relatedKey, $relationName = null)
|
||
|
|
{
|
||
|
|
return new BelongsToMany($query, $parent, $table, $foreignPivotKey, $relatedPivotKey, $parentKey, $relatedKey, $relationName);
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Define a polymorphic many-to-many relationship.
|
||
|
|
*
|
||
|
|
* @param string $related
|
||
|
|
* @param string $name
|
||
|
|
* @param string|null $table
|
||
|
|
* @param string|null $foreignPivotKey
|
||
|
|
* @param string|null $relatedPivotKey
|
||
|
|
* @param string|null $parentKey
|
||
|
|
* @param string|null $relatedKey
|
||
|
|
* @param bool $inverse
|
||
|
|
* @return \Illuminate\Database\Eloquent\Relations\MorphToMany
|
||
|
|
*/
|
||
|
|
public function morphToMany($related, $name, $table = null, $foreignPivotKey = null,
|
||
|
|
$relatedPivotKey = null, $parentKey = null,
|
||
|
|
$relatedKey = null, $inverse = false)
|
||
|
|
{
|
||
|
|
$caller = $this->guessBelongsToManyRelation();
|
||
|
|
|
||
|
|
// First, we will need to determine the foreign key and "other key" for the
|
||
|
|
// relationship. Once we have determined the keys we will make the query
|
||
|
|
// instances, as well as the relationship instances we need for these.
|
||
|
|
$instance = $this->newRelatedInstance($related);
|
||
|
|
|
||
|
|
$foreignPivotKey = $foreignPivotKey ?: $name.'_id';
|
||
|
|
|
||
|
|
$relatedPivotKey = $relatedPivotKey ?: $instance->getForeignKey();
|
||
|
|
|
||
|
|
// Now we're ready to create a new query builder for the related model and
|
||
|
|
// the relationship instances for this relation. This relation will set
|
||
|
|
// appropriate query constraints then entirely manage the hydrations.
|
||
|
|
if (! $table) {
|
||
|
|
$words = preg_split('/(_)/u', $name, -1, PREG_SPLIT_DELIM_CAPTURE);
|
||
|
|
|
||
|
|
$lastWord = array_pop($words);
|
||
|
|
|
||
|
|
$table = implode('', $words).Str::plural($lastWord);
|
||
|
|
}
|
||
|
|
|
||
|
|
return $this->newMorphToMany(
|
||
|
|
$instance->newQuery(), $this, $name, $table,
|
||
|
|
$foreignPivotKey, $relatedPivotKey, $parentKey ?: $this->getKeyName(),
|
||
|
|
$relatedKey ?: $instance->getKeyName(), $caller, $inverse
|
||
|
|
);
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Instantiate a new MorphToMany relationship.
|
||
|
|
*
|
||
|
|
* @param \Illuminate\Database\Eloquent\Builder $query
|
||
|
|
* @param \Illuminate\Database\Eloquent\Model $parent
|
||
|
|
* @param string $name
|
||
|
|
* @param string $table
|
||
|
|
* @param string $foreignPivotKey
|
||
|
|
* @param string $relatedPivotKey
|
||
|
|
* @param string $parentKey
|
||
|
|
* @param string $relatedKey
|
||
|
|
* @param string|null $relationName
|
||
|
|
* @param bool $inverse
|
||
|
|
* @return \Illuminate\Database\Eloquent\Relations\MorphToMany
|
||
|
|
*/
|
||
|
|
protected function newMorphToMany(Builder $query, Model $parent, $name, $table, $foreignPivotKey,
|
||
|
|
$relatedPivotKey, $parentKey, $relatedKey,
|
||
|
|
$relationName = null, $inverse = false)
|
||
|
|
{
|
||
|
|
return new MorphToMany($query, $parent, $name, $table, $foreignPivotKey, $relatedPivotKey, $parentKey, $relatedKey,
|
||
|
|
$relationName, $inverse);
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Define a polymorphic, inverse many-to-many relationship.
|
||
|
|
*
|
||
|
|
* @param string $related
|
||
|
|
* @param string $name
|
||
|
|
* @param string|null $table
|
||
|
|
* @param string|null $foreignPivotKey
|
||
|
|
* @param string|null $relatedPivotKey
|
||
|
|
* @param string|null $parentKey
|
||
|
|
* @param string|null $relatedKey
|
||
|
|
* @return \Illuminate\Database\Eloquent\Relations\MorphToMany
|
||
|
|
*/
|
||
|
|
public function morphedByMany($related, $name, $table = null, $foreignPivotKey = null,
|
||
|
|
$relatedPivotKey = null, $parentKey = null, $relatedKey = null)
|
||
|
|
{
|
||
|
|
$foreignPivotKey = $foreignPivotKey ?: $this->getForeignKey();
|
||
|
|
|
||
|
|
// For the inverse of the polymorphic many-to-many relations, we will change
|
||
|
|
// the way we determine the foreign and other keys, as it is the opposite
|
||
|
|
// of the morph-to-many method since we're figuring out these inverses.
|
||
|
|
$relatedPivotKey = $relatedPivotKey ?: $name.'_id';
|
||
|
|
|
||
|
|
return $this->morphToMany(
|
||
|
|
$related, $name, $table, $foreignPivotKey,
|
||
|
|
$relatedPivotKey, $parentKey, $relatedKey, true
|
||
|
|
);
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Get the relationship name of the belongsToMany relationship.
|
||
|
|
*
|
||
|
|
* @return string|null
|
||
|
|
*/
|
||
|
|
protected function guessBelongsToManyRelation()
|
||
|
|
{
|
||
|
|
$caller = Arr::first(debug_backtrace(DEBUG_BACKTRACE_IGNORE_ARGS), function ($trace) {
|
||
|
|
return ! in_array(
|
||
|
|
$trace['function'],
|
||
|
|
array_merge(static::$manyMethods, ['guessBelongsToManyRelation'])
|
||
|
|
);
|
||
|
|
});
|
||
|
|
|
||
|
|
return ! is_null($caller) ? $caller['function'] : null;
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Get the joining table name for a many-to-many relation.
|
||
|
|
*
|
||
|
|
* @param string $related
|
||
|
|
* @param \Illuminate\Database\Eloquent\Model|null $instance
|
||
|
|
* @return string
|
||
|
|
*/
|
||
|
|
public function joiningTable($related, $instance = null)
|
||
|
|
{
|
||
|
|
// The joining table name, by convention, is simply the snake cased models
|
||
|
|
// sorted alphabetically and concatenated with an underscore, so we can
|
||
|
|
// just sort the models and join them together to get the table name.
|
||
|
|
$segments = [
|
||
|
|
$instance ? $instance->joiningTableSegment()
|
||
|
|
: Str::snake(class_basename($related)),
|
||
|
|
$this->joiningTableSegment(),
|
||
|
|
];
|
||
|
|
|
||
|
|
// Now that we have the model names in an array we can just sort them and
|
||
|
|
// use the implode function to join them together with an underscores,
|
||
|
|
// which is typically used by convention within the database system.
|
||
|
|
sort($segments);
|
||
|
|
|
||
|
|
return strtolower(implode('_', $segments));
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Get this model's half of the intermediate table name for belongsToMany relationships.
|
||
|
|
*
|
||
|
|
* @return string
|
||
|
|
*/
|
||
|
|
public function joiningTableSegment()
|
||
|
|
{
|
||
|
|
return Str::snake(class_basename($this));
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Determine if the model touches a given relation.
|
||
|
|
*
|
||
|
|
* @param string $relation
|
||
|
|
* @return bool
|
||
|
|
*/
|
||
|
|
public function touches($relation)
|
||
|
|
{
|
||
|
|
return in_array($relation, $this->getTouchedRelations());
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Touch the owning relations of the model.
|
||
|
|
*
|
||
|
|
* @return void
|
||
|
|
*/
|
||
|
|
public function touchOwners()
|
||
|
|
{
|
||
|
|
foreach ($this->getTouchedRelations() as $relation) {
|
||
|
|
$this->$relation()->touch();
|
||
|
|
|
||
|
|
if ($this->$relation instanceof self) {
|
||
|
|
$this->$relation->fireModelEvent('saved', false);
|
||
|
|
|
||
|
|
$this->$relation->touchOwners();
|
||
|
|
} elseif ($this->$relation instanceof Collection) {
|
||
|
|
$this->$relation->each->touchOwners();
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Get the polymorphic relationship columns.
|
||
|
|
*
|
||
|
|
* @param string $name
|
||
|
|
* @param string $type
|
||
|
|
* @param string $id
|
||
|
|
* @return array
|
||
|
|
*/
|
||
|
|
protected function getMorphs($name, $type, $id)
|
||
|
|
{
|
||
|
|
return [$type ?: $name.'_type', $id ?: $name.'_id'];
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Get the class name for polymorphic relations.
|
||
|
|
*
|
||
|
|
* @return string
|
||
|
|
*/
|
||
|
|
public function getMorphClass()
|
||
|
|
{
|
||
|
|
$morphMap = Relation::morphMap();
|
||
|
|
|
||
|
|
if (! empty($morphMap) && in_array(static::class, $morphMap)) {
|
||
|
|
return array_search(static::class, $morphMap, true);
|
||
|
|
}
|
||
|
|
|
||
|
|
if (static::class === Pivot::class) {
|
||
|
|
return static::class;
|
||
|
|
}
|
||
|
|
|
||
|
|
if (Relation::requiresMorphMap()) {
|
||
|
|
throw new ClassMorphViolationException($this);
|
||
|
|
}
|
||
|
|
|
||
|
|
return static::class;
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Create a new model instance for a related model.
|
||
|
|
*
|
||
|
|
* @param string $class
|
||
|
|
* @return mixed
|
||
|
|
*/
|
||
|
|
protected function newRelatedInstance($class)
|
||
|
|
{
|
||
|
|
return tap(new $class, function ($instance) {
|
||
|
|
if (! $instance->getConnectionName()) {
|
||
|
|
$instance->setConnection($this->connection);
|
||
|
|
}
|
||
|
|
});
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Create a new model instance for a related "through" model.
|
||
|
|
*
|
||
|
|
* @param string $class
|
||
|
|
* @return mixed
|
||
|
|
*/
|
||
|
|
protected function newRelatedThroughInstance($class)
|
||
|
|
{
|
||
|
|
return new $class;
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Get all the loaded relations for the instance.
|
||
|
|
*
|
||
|
|
* @return array
|
||
|
|
*/
|
||
|
|
public function getRelations()
|
||
|
|
{
|
||
|
|
return $this->relations;
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Get a specified relationship.
|
||
|
|
*
|
||
|
|
* @param string $relation
|
||
|
|
* @return mixed
|
||
|
|
*/
|
||
|
|
public function getRelation($relation)
|
||
|
|
{
|
||
|
|
return $this->relations[$relation];
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Determine if the given relation is loaded.
|
||
|
|
*
|
||
|
|
* @param string $key
|
||
|
|
* @return bool
|
||
|
|
*/
|
||
|
|
public function relationLoaded($key)
|
||
|
|
{
|
||
|
|
return array_key_exists($key, $this->relations);
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Set the given relationship on the model.
|
||
|
|
*
|
||
|
|
* @param string $relation
|
||
|
|
* @param mixed $value
|
||
|
|
* @return $this
|
||
|
|
*/
|
||
|
|
public function setRelation($relation, $value)
|
||
|
|
{
|
||
|
|
$this->relations[$relation] = $value;
|
||
|
|
|
||
|
|
return $this;
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Unset a loaded relationship.
|
||
|
|
*
|
||
|
|
* @param string $relation
|
||
|
|
* @return $this
|
||
|
|
*/
|
||
|
|
public function unsetRelation($relation)
|
||
|
|
{
|
||
|
|
unset($this->relations[$relation]);
|
||
|
|
|
||
|
|
return $this;
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Set the entire relations array on the model.
|
||
|
|
*
|
||
|
|
* @param array $relations
|
||
|
|
* @return $this
|
||
|
|
*/
|
||
|
|
public function setRelations(array $relations)
|
||
|
|
{
|
||
|
|
$this->relations = $relations;
|
||
|
|
|
||
|
|
return $this;
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Duplicate the instance and unset all the loaded relations.
|
||
|
|
*
|
||
|
|
* @return $this
|
||
|
|
*/
|
||
|
|
public function withoutRelations()
|
||
|
|
{
|
||
|
|
$model = clone $this;
|
||
|
|
|
||
|
|
return $model->unsetRelations();
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Unset all the loaded relations for the instance.
|
||
|
|
*
|
||
|
|
* @return $this
|
||
|
|
*/
|
||
|
|
public function unsetRelations()
|
||
|
|
{
|
||
|
|
$this->relations = [];
|
||
|
|
|
||
|
|
return $this;
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Get the relationships that are touched on save.
|
||
|
|
*
|
||
|
|
* @return array
|
||
|
|
*/
|
||
|
|
public function getTouchedRelations()
|
||
|
|
{
|
||
|
|
return $this->touches;
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Set the relationships that are touched on save.
|
||
|
|
*
|
||
|
|
* @param array $touches
|
||
|
|
* @return $this
|
||
|
|
*/
|
||
|
|
public function setTouchedRelations(array $touches)
|
||
|
|
{
|
||
|
|
$this->touches = $touches;
|
||
|
|
|
||
|
|
return $this;
|
||
|
|
}
|
||
|
|
}
|