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<?php namespace Arcanedev\LaravelNestedSet\Eloquent; |
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use Arcanedev\LaravelNestedSet\Utilities\NestedSet; |
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use Illuminate\Database\Eloquent\Builder as EloquentBuilder; |
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use Illuminate\Database\Eloquent\Collection as EloquentCollection; |
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use Illuminate\Database\Eloquent\Model; |
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use Illuminate\Database\Eloquent\Relations\Relation; |
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use Illuminate\Database\Query\Builder; |
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use InvalidArgumentException; |
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use RuntimeException; |
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/** |
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* Class AncestorsRelation |
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* |
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* @package Arcanedev\LaravelNestedSet\Eloquent |
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* @author ARCANEDEV <[email protected]> |
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*/ |
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class AncestorsRelation extends Relation |
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{ |
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/* ----------------------------------------------------------------- |
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| Properties |
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| ----------------------------------------------------------------- |
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*/ |
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/** |
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* @var \Arcanedev\LaravelNestedSet\NodeTrait|\Illuminate\Database\Eloquent\Model |
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*/ |
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protected $parent; |
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/** |
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* @var QueryBuilder |
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*/ |
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protected $query; |
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/* ----------------------------------------------------------------- |
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| Constructor |
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| ----------------------------------------------------------------- |
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*/ |
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/** |
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* AncestorsRelation constructor. |
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* |
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* @param \Arcanedev\LaravelNestedSet\Eloquent\QueryBuilder $builder |
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* @param \Illuminate\Database\Eloquent\Model|mixed $model |
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*/ |
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public function __construct(QueryBuilder $builder, Model $model) |
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{ |
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if ( ! NestedSet::isNode($model)) |
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throw new InvalidArgumentException('Model must be node.'); |
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parent::__construct($builder, $model); |
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} |
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/** |
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* Add the constraints for a relationship count query. |
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* |
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* @param \Illuminate\Database\Eloquent\Builder $query |
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* @param \Illuminate\Database\Eloquent\Builder $parentQuery |
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* |
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* @return \Illuminate\Database\Eloquent\Builder |
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*/ |
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public function getRelationExistenceCountQuery(EloquentBuilder $query, EloquentBuilder $parentQuery) |
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{ |
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throw new RuntimeException('Cannot count ancestors, use depth functionality instead'); |
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} |
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/** |
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* Add the constraints for an internal relationship existence query. |
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* |
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* Essentially, these queries compare on column names like whereColumn. |
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* |
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* @param \Illuminate\Database\Eloquent\Builder $query |
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* @param \Illuminate\Database\Eloquent\Builder $parentQuery |
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* @param array|mixed $columns |
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* |
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* @return \Illuminate\Database\Eloquent\Builder |
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*/ |
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public function getRelationExistenceQuery(EloquentBuilder $query, EloquentBuilder $parentQuery, $columns = [ '*' ]) |
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{ |
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$query->select($columns); |
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$table = $query->getModel()->getTable(); |
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$query->from($table.' as '.$hash = $this->getRelationSubSelectHash()); |
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$grammar = $query->getQuery()->getGrammar(); |
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$table = $grammar->wrapTable($table); |
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$hash = $grammar->wrapTable($hash); |
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$parentIdName = $grammar->wrap($this->parent->getParentIdName()); |
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return $query->whereRaw("{$hash}.{$parentIdName} = {$table}.{$parentIdName}"); |
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} |
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/** |
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* @param \Illuminate\Database\Eloquent\Builder $query |
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* @param \Illuminate\Database\Eloquent\Builder $parentQuery |
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* @param array|mixed $columns |
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* |
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* @return mixed |
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*/ |
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public function getRelationQuery(EloquentBuilder $query, EloquentBuilder $parentQuery, $columns = [ '*' ]) |
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{ |
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return $this->getRelationExistenceQuery($query, $parentQuery, $columns); |
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} |
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/** |
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* Get a relationship join table hash. |
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* |
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* @return string |
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*/ |
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public function getRelationSubSelectHash() |
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{ |
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return 'self_'.md5(microtime(true)); |
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} |
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/** |
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* Set the base constraints on the relation query. |
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*/ |
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public function addConstraints() |
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{ |
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if ( ! static::$constraints) return; |
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$this->query->whereAncestorOf($this->parent)->defaultOrder(); |
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} |
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/** |
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* Set the constraints for an eager load of the relation. |
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* |
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* @param array $models |
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*/ |
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public function addEagerConstraints(array $models) |
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{ |
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$model = $this->query->getModel(); |
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$table = $model->getTable(); |
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$key = $model->getKeyName(); |
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$grammar = $this->query->getQuery()->getGrammar(); |
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$table = $grammar->wrapTable($table); |
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$hash = $grammar->wrap($this->getRelationSubSelectHash()); |
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$key = $grammar->wrap($key); |
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$lft = $grammar->wrap($this->parent->getLftName()); |
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$rgt = $grammar->wrap($this->parent->getRgtName()); |
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$sql = "$key IN (SELECT DISTINCT($key) FROM {$table} INNER JOIN " |
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. "(SELECT {$lft}, {$rgt} FROM {$table} WHERE {$key} IN (" . implode(',', $this->getKeys($models)) |
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. ")) AS $hash ON {$table}.{$lft} <= {$hash}.{$lft} AND {$table}.{$rgt} >= {$hash}.{$rgt})"; |
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$this->query |
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->whereNested(function (Builder $inner) use ($sql) { |
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$inner->whereRaw($sql); |
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}) |
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->orderBy('lft', 'ASC'); |
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} |
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/** |
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* Initialize the relation on a set of models. |
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* |
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* @param array $models |
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* @param string $relation |
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* |
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* @return array |
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*/ |
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public function initRelation(array $models, $relation) |
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{ |
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return $models; |
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} |
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/** |
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* Match the eagerly loaded results to their parents. |
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* |
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* @param array $models |
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* @param \Illuminate\Database\Eloquent\Collection $results |
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* @param string $relation |
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* |
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* @return array |
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*/ |
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public function match(array $models, EloquentCollection $results, $relation) |
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{ |
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foreach ($models as $model) { |
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$model->setRelation($relation, $this->getAncestorsForModel($model, $results)); |
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} |
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return $models; |
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} |
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/** |
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* Get the results of the relationship. |
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* |
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* @return mixed |
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*/ |
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public function getResults() |
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{ |
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return $this->query->get(); |
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} |
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/** |
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* Get ancestors for the given model. |
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* @param \Illuminate\Database\Eloquent\Model $model |
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* @param \Illuminate\Database\Eloquent\Collection $results |
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* |
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* @return \Illuminate\Database\Eloquent\Collection |
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*/ |
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protected function getAncestorsForModel(Model $model, EloquentCollection $results) |
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{ |
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$result = $this->related->newCollection(); |
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foreach ($results as $ancestor) { |
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if ($ancestor->isAncestorOf($model)) |
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$result->push($ancestor); |
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} |
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return $result; |
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} |
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} |
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This check marks calls to methods that do not seem to exist on an object.
This is most likely the result of a method being renamed without all references to it being renamed likewise.