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<?php |
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/** |
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* @author CONTENT CONTROL http://www.contentcontrol-berlin.de/ |
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* @copyright CONTENT CONTROL http://www.contentcontrol-berlin.de/ |
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* @license http://www.gnu.org/licenses/gpl.html GNU General Public License |
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*/ |
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namespace midgard\portable\storage; |
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use midgard_query_builder; |
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class collection |
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{ |
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private readonly string $classname; |
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public function __construct(string $classname) |
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{ |
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$this->classname = $classname; |
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} |
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public function is_empty(string $guid) : bool |
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{ |
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$qb = $this->get_qb($guid); |
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return $qb->count() == 0; |
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} |
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public function find(string $guid, array $constraints) : array |
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{ |
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$qb = $this->get_qb($guid); |
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$this->apply_qb_constraints($qb, $constraints); |
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return $qb->execute(); |
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} |
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public function delete(string $guid, array $constraints) : int |
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{ |
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$qb = $this->get_qb($guid); |
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$this->apply_qb_constraints($qb, $constraints); |
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$params = $qb->execute(); |
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$deleted_count = 0; |
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foreach ($params as $param) { |
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if ($param->delete()) { |
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$deleted_count++; |
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} |
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} |
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return $deleted_count; |
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} |
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public function purge(string $guid, array $constraints) : int |
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{ |
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$qb = $this->get_qb($guid); |
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$this->apply_qb_constraints($qb, $constraints); |
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$params = $qb->execute(); |
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$purged_count = 0; |
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foreach ($params as $param) { |
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if ($param->purge()) { |
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$purged_count++; |
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} |
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} |
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return $purged_count; |
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} |
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private function get_qb(string $guid) : midgard_query_builder |
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{ |
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$qb = new midgard_query_builder(connection::get_fqcn($this->classname)); |
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$qb->add_constraint('parentguid', '=', $guid); |
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return $qb; |
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} |
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private function apply_qb_constraints(midgard_query_builder $qb, array $constraints) |
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{ |
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foreach ($constraints as $name => $value) { |
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$qb->add_constraint($name, '=', $value); |
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} |
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} |
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} |
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flack /
midgard-portable
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