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<?php |
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/** |
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* Base daft objects. |
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* |
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* @author SignpostMarv |
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*/ |
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declare(strict_types=1); |
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namespace SignpostMarv\DaftObject; |
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use ParagonIE\EasyDB\EasyDB; |
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abstract class AbstractDaftObjectEasyDBRepository extends DaftObjectMemoryRepository |
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{ |
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/** |
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* @var EasyDB |
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*/ |
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protected $db; |
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protected function __construct(string $type, EasyDB $db) |
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{ |
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parent::__construct($type); |
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$this->db = $db; |
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} |
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public static function DaftObjectRepositoryByType( |
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string $type, |
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? EasyDB $db = null |
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) : DaftObjectRepository { |
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$a = is_a($type, DaftObjectCreatedByArray::class, true); |
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if ( |
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false === $a || |
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false === is_a($type, DefinesOwnIdPropertiesInterface::class, true) |
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) { |
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throw new DaftObjectRepositoryTypeByClassMethodAndTypeException( |
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1, |
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static::class, |
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__FUNCTION__, |
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($a ? DefinesOwnIdPropertiesInterface::class : DaftObjectCreatedByArray::class), |
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$type |
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); |
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} elseif (false === ($db instanceof EasyDB)) { |
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throw new DatabaseConnectionNotSpecifiedException( |
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2, |
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static::class, |
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__FUNCTION__, |
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EasyDB::class, |
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'null' |
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); |
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} |
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return new static($type, $db); |
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} |
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public static function DaftObjectRepositoryByDaftObject( |
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DefinesOwnIdPropertiesInterface $object, |
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? EasyDB $db = null |
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) : DaftObjectRepository { |
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return static::DaftObjectRepositoryByType(get_class($object), $db); |
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} |
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/** |
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* @param mixed $id |
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*/ |
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public function RemoveDaftObjectById($id) : void |
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{ |
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$id = array_values(is_array($id) ? $id : [$id]); |
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/** |
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* @var DefinesOwnIdPropertiesInterface $type |
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*/ |
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$type = $this->type; |
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$idkv = []; |
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foreach (array_values($type::DaftObjectIdProperties()) as $i => $prop) { |
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$idkv[$prop] = $id[$i]; |
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if (is_bool($idkv[$prop])) { |
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$idkv[$prop] = $idkv[$prop] ? 1 : 0; |
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} |
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} |
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$this->db->delete($this->DaftObjectDatabaseTable(), $idkv); |
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$this->ForgetDaftObjectById($id); |
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} |
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abstract protected function DaftObjectDatabaseTable() : string; |
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/** |
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* @return string[] |
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*/ |
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protected function RememberDaftObjectDataCols(DaftObject $object, bool $exists) : array |
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{ |
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$cols = $object::DaftObjectExportableProperties(); |
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if ($exists) { |
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$changed = $object->ChangedProperties(); |
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$cols = array_filter( |
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$cols, |
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function (string $prop) use ($changed) : bool { |
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return in_array($prop, $changed, true); |
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} |
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); |
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} |
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return $cols; |
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} |
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/** |
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* @return array<string, mixed> |
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*/ |
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protected function RememberDaftObjectDataValues(DaftObject $object, bool $exists) : array |
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{ |
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$values = []; |
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$cols = $this->RememberDaftObjectDataCols($object, $exists); |
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foreach ($cols as $col) { |
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$values[$col] = $object->$col; |
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if (is_bool($values[$col])) { |
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$values[$col] = $values[$col] ? 1 : 0; |
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} |
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} |
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return $values; |
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} |
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protected function RememberDaftObjectDataUpdate(bool $exists, array $id, array $values) : void |
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{ |
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if (count($values) > 0) { |
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if (false === $exists) { |
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$this->db->insert($this->DaftObjectDatabaseTable(), $values); |
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} else { |
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$this->db->update($this->DaftObjectDatabaseTable(), $values, $id); |
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} |
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} |
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} |
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protected function RememberDaftObjectData(DefinesOwnIdPropertiesInterface $object) : void |
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{ |
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$id = []; |
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foreach ($object::DaftObjectIdProperties() as $prop) { |
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$id[$prop] = $object->$prop; |
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} |
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$this->db->tryFlatTransaction(function () use ($id, $object) : void { |
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$exists = $this->DaftObjectExistsInDatabase($id); |
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$values = $this->RememberDaftObjectDataValues($object, $exists); |
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$this->RememberDaftObjectDataUpdate($exists, $id, $values); |
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}); |
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} |
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/** |
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* @param mixed $id |
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*/ |
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protected function RecallDaftObjectFromData($id) : ? DaftObject |
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{ |
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$type = $this->type; |
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$idkv = []; |
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if (is_scalar($id) && 1 === count($type::DaftObjectIdProperties())) { |
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$id = [$id]; |
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} |
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foreach (array_values($type::DaftObjectIdProperties()) as $i => $prop) { |
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$idkv[$prop] = $id[$i]; |
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} |
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if (true === $this->DaftObjectExistsInDatabase($idkv)) { |
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$where = []; |
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foreach (array_keys($idkv) as $col) { |
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$where[] = $this->db->escapeIdentifier($col) . ' = ?'; |
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} |
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$data = $this->db->safeQuery( |
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( |
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'SELECT * FROM ' . |
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$this->db->escapeIdentifier($this->DaftObjectDatabaseTable()) . |
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' WHERE ' . |
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implode(' AND ', $where) . |
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' LIMIT 1' |
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), |
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array_values($idkv) |
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); |
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/** |
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* @var DefinesOwnIdPropertiesInterface $out |
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*/ |
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$out = new $type($data[0]); |
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return $out; |
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} |
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return null; |
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} |
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private function DaftObjectExistsInDatabase(array $id) : bool |
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{ |
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$where = []; |
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foreach (array_keys($id) as $col) { |
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$where[] = $this->db->escapeIdentifier($col) . ' = ?'; |
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} |
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return |
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(int) $this->db->single( |
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( |
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'SELECT COUNT(*) FROM ' . |
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$this->db->escapeIdentifier($this->DaftObjectDatabaseTable()) . |
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' WHERE ' . |
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implode(' AND ', $where) |
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), |
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array_values($id) |
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) >= 1; |
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} |
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} |
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SignpostMarv /
daft-db-object
