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<?php |
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namespace Sofa\Eloquence; |
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use Illuminate\Database\Query\Expression; |
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use Illuminate\Database\Query\Builder as QueryBuilder; |
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use Illuminate\Database\Eloquent\Builder as EloquentBuilder; |
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/** |
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* @mixin QueryBuilder |
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*/ |
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class Subquery extends Expression |
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{ |
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/** |
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* Query builder instance. |
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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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* Alias for the subquery. |
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* |
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* @var string |
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*/ |
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protected $alias; |
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/** |
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* Create new subquery instance. |
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* |
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* @param QueryBuilder|EloquentBuilder |
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* @param string $alias |
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*/ |
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public function __construct($query, $alias = null) |
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{ |
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if ($query instanceof EloquentBuilder) { |
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$query = $query->getQuery(); |
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} |
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$this->setQuery($query); |
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$this->alias = $alias; |
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} |
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/** |
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* Set underlying query builder. |
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* |
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* @param QueryBuilder $query |
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*/ |
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public function setQuery(QueryBuilder $query) |
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{ |
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$this->query = $query; |
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} |
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/** |
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* Get underlying query builder. |
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* |
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* @return QueryBuilder |
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*/ |
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public function getQuery() |
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{ |
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return $this->query; |
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} |
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/** |
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* Evaluate query as string. |
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* |
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* @return string |
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*/ |
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public function getValue() |
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{ |
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$sql = '(' . $this->query->toSql() . ')'; |
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if ($this->alias) { |
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$alias = $this->query->getGrammar()->wrapTable($this->alias); |
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$sql .= ' as ' . $alias; |
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} |
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return $sql; |
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} |
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/** |
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* Get subquery alias. |
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* |
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* @return string |
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*/ |
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public function getAlias() |
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{ |
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return $this->alias; |
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} |
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/** |
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* Set subquery alias. |
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* |
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* @param string $alias |
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* @return $this |
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*/ |
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public function setAlias($alias) |
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{ |
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$this->alias = $alias; |
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return $this; |
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} |
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/** |
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* Pass property calls to the underlying builder. |
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* |
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* @param string $property |
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* @param mixed $value |
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* @return mixed |
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*/ |
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public function __set($property, $value) |
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{ |
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return $this->query->{$property} = $value; |
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} |
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/** |
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* Pass property calls to the underlying builder. |
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* |
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* @param string $property |
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* @return mixed |
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*/ |
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public function __get($property) |
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{ |
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return $this->query->{$property}; |
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} |
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/** |
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* Pass method calls to the underlying builder. |
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* |
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* @param string $method |
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* @param array $params |
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* @return mixed |
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*/ |
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public function __call($method, $params) |
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{ |
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return call_user_func_array([$this->query, $method], $params); |
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} |
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} |
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