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<?php |
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namespace Staudenmeir\EloquentJsonRelations\Relations\Postgres; |
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use Illuminate\Database\Eloquent\Builder; |
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use Illuminate\Database\Eloquent\Relations\BelongsTo as Base; |
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class BelongsTo extends Base |
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{ |
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use IsPostgresRelation; |
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/** |
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* Add the constraints for a relationship 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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* @param array|mixed $columns |
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* @return \Illuminate\Database\Eloquent\Builder |
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*/ |
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public function getRelationExistenceQuery(Builder $query, Builder $parentQuery, $columns = ['*']) |
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{ |
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if ($parentQuery->getQuery()->from == $query->getQuery()->from) { |
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return $this->getRelationExistenceQueryForSelfRelation($query, $parentQuery, $columns); |
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} |
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$first = $this->jsonColumn($query, $this->related, $this->getQualifiedForeignKeyName(), $this->ownerKey); |
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return $query->select($columns)->whereColumn( |
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$first, |
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'=', |
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$query->qualifyColumn($this->ownerKey) |
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); |
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} |
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/** |
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* Add the constraints for a relationship query on the same table. |
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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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* @return \Illuminate\Database\Eloquent\Builder |
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*/ |
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public function getRelationExistenceQueryForSelfRelation(Builder $query, Builder $parentQuery, $columns = ['*']) |
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{ |
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$query->select($columns)->from( |
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$query->getModel()->getTable().' as '.$hash = $this->getRelationCountHash() |
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); |
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$query->getModel()->setTable($hash); |
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$first = $this->jsonColumn($query, $this->related, $this->getQualifiedForeignKeyName(), $this->ownerKey); |
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return $query->whereColumn( |
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$first, |
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$hash.'.'.$this->ownerKey |
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); |
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} |
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} |
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staudenmeir /
eloquent-json-relations
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