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<?php |
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namespace Staudenmeir\LaravelAdjacencyList\Eloquent\Relations; |
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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\Query\Expression; |
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trait IsRecursiveRelation |
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{ |
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/** |
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* Whether to include the parent model. |
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* |
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* @var bool |
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*/ |
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protected $andSelf; |
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/** |
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* Create a new recursive relationship instance. |
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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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* @param bool $andSelf |
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* @return void |
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*/ |
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public function __construct(Builder $query, Model $parent, $foreignKey, $localKey, $andSelf) |
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{ |
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$this->andSelf = $andSelf; |
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parent::__construct($query, $parent, $foreignKey, $localKey); |
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} |
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/** |
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* Build model dictionary. |
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* |
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* @param \Illuminate\Database\Eloquent\Collection $results |
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* @return array |
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*/ |
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protected function buildDictionary(Collection $results) |
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{ |
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return $results->mapToDictionary(function (Model $result) { |
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return [$result->getFirstPathSegment() => $result]; |
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})->all(); |
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} |
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/** |
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* Get the fully qualified local key name. |
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* |
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* @return string |
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*/ |
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public function getQualifiedLocalKeyName() |
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{ |
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return $this->qualifyColumn($this->localKey); |
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} |
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/** |
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* Update records in the database. |
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* |
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* @param array $values |
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* @return int |
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*/ |
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public function update(array $values) |
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{ |
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return $this->executeUpdateOrDeleteQuery(__FUNCTION__, func_get_args()); |
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} |
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/** |
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* Decrement a column's value by a given amount. |
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* |
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* @param string $column |
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* @param float|int $amount |
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* @param array $extra |
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* @return int |
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*/ |
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public function increment($column, $amount = 1, array $extra = []) |
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{ |
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return $this->executeUpdateOrDeleteQuery(__FUNCTION__, func_get_args()); |
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} |
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/** |
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* Decrement a column's value by a given amount. |
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* |
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* @param string|\Illuminate\Database\Query\Expression $column |
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* @param float|int $amount |
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* @param array $extra |
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* @return int |
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*/ |
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public function decrement($column, $amount = 1, array $extra = []) |
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{ |
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return $this->executeUpdateOrDeleteQuery(__FUNCTION__, func_get_args()); |
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} |
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/** |
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* Delete records from the database. |
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* |
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* @return mixed |
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*/ |
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public function delete() |
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{ |
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return $this->executeUpdateOrDeleteQuery(__FUNCTION__); |
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} |
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/** |
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* Force a hard delete on a soft deleted model. |
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* |
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* @return bool|null |
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*/ |
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public function forceDelete() |
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{ |
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return $this->executeUpdateOrDeleteQuery(__FUNCTION__); |
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} |
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/** |
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* Execute an update or delete query after adding the necessary "where in" constraint. |
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* |
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* @param string $method |
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* @param array $parameters |
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* @return mixed |
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*/ |
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public function executeUpdateOrDeleteQuery($method, array $parameters = []) |
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{ |
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$expression = $this->query->getQuery()->from; |
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$table = $this->parent->getTable(); |
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$this->query->getQuery()->from = $table; |
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$this->query->getModel()->setTable($table); |
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$keys = $this->query->getQuery()->newQuery()->from($expression)->select($this->localKey); |
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return $this->query->whereIn($this->getQualifiedLocalKeyName(), $keys)->$method(...$parameters); |
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} |
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/** |
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* Replace table hash with expression name in self-relation aggregate queries. |
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* |
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* @param \Illuminate\Database\Eloquent\Builder $query |
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* @param \Illuminate\Database\Query\Expression $expression |
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* @return \Illuminate\Database\Query\Expression |
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*/ |
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protected function replaceTableHash(Builder $query, Expression $expression) |
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{ |
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return new Expression( |
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str_replace( |
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$query->getGrammar()->wrap( |
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$this->getRelationCountHash(false) |
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), |
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$query->getGrammar()->wrap( |
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$query->getModel()->getExpressionName() |
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), |
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$expression->getValue(), |
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) |
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); |
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} |
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} |
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staudenmeir /
laravel-adjacency-list
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