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<?php |
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namespace Staudenmeir\EloquentJsonRelations\Relations\Traits\Concatenation; |
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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\Query\JoinClause; |
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trait IsConcatenableBelongsToJsonRelation |
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{ |
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use IsConcatenableRelation; |
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/** |
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* Append the relation's through parents, foreign and local keys to a deep relationship. |
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* |
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* @param \Illuminate\Database\Eloquent\Model[] $through |
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* @param array $foreignKeys |
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* @param array $localKeys |
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* @param int $position |
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* @return array |
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*/ |
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public function appendToDeepRelationship(array $through, array $foreignKeys, array $localKeys, int $position): array |
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{ |
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if ($position === 0) { |
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$foreignKeys[] = $this->ownerKey; |
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$localKeys[] = function (Builder $query, ?Builder $parentQuery = null) { |
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if ($parentQuery) { |
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$this->getRelationExistenceQuery($this->query, $parentQuery); |
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} |
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$this->mergeWhereConstraints($query, $this->query); |
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}; |
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} else { |
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$foreignKeys[] = function (Builder $query, JoinClause $join) { |
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$ownerKey = $this->query->qualifyColumn($this->ownerKey); |
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[$sql, $bindings] = $this->relationExistenceQueryOwnerKey($query, $ownerKey); |
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$query->addBinding($bindings, 'join'); |
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$this->whereJsonContainsOrMemberOf( |
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$join, |
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$this->getQualifiedPath(), |
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$query->getQuery()->connection->raw($sql) |
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); |
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}; |
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$localKeys[] = null; |
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} |
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return [$through, $foreignKeys, $localKeys]; |
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} |
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/** |
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* Match the eagerly loaded results for a deep relationship 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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* @param string $type |
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* @return array |
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*/ |
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public function matchResultsForDeepRelationship( |
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array $models, |
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Collection $results, |
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string $relation, |
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string $type = 'many' |
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): array { |
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$dictionary = $this->buildDictionaryForDeepRelationship($results); |
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foreach ($models as $model) { |
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$matches = []; |
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foreach ($this->getForeignKeys($model) as $id) { |
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if (isset($dictionary[$id])) { |
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$matches = array_merge($matches, $dictionary[$id]); |
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} |
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} |
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$value = $type === 'one' |
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? (reset($matches) ?: null) |
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: $this->related->newCollection($matches); |
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$model->setRelation($relation, $value); |
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} |
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return $models; |
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} |
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/** |
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* Build the model dictionary for a deep relation. |
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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 buildDictionaryForDeepRelationship(Collection $results): array |
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{ |
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$dictionary = []; |
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foreach ($results as $result) { |
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$dictionary[$result->laravel_through_key][] = $result; |
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} |
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return $dictionary; |
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} |
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} |
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staudenmeir /
eloquent-json-relations
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