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<?php |
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namespace ArekX\PQL\Orm; |
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use ArekX\PQL\Contracts\Driver; |
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use ArekX\PQL\Contracts\QueryBuilder; |
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/** |
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* Relational Mapper for mapping |
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* models to tables. |
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* |
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*/ |
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class RelationalMapper |
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{ |
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/** |
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* Current driver in use. |
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* @var Driver |
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*/ |
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public Driver $driver; |
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/** |
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* Current query builder in use. |
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* |
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* @var QueryBuilder |
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*/ |
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public QueryBuilder $builder; |
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/** |
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* Compiler for model structure |
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* |
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* @var ModelCompiler |
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*/ |
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protected ModelCompiler $compiler; |
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/** |
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* Creates a new instance of this mapper |
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* |
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* @param Driver|null $driver Driver to be set to be used |
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* @param QueryBuilder|null $builder Builder to be used |
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* @return static |
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*/ |
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public static function create(?Driver $driver = null, ?QueryBuilder $builder = null): static |
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{ |
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return new static($driver, $builder); |
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} |
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/** |
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* Creates new instance of this mapper |
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* |
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* @param Driver|null $driver Driver to be set to be used |
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* @param QueryBuilder|null $builder Builder to be used |
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*/ |
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public function __construct(?Driver $driver = null, ?QueryBuilder $builder = null) |
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{ |
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if ($driver) { |
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$this->useDriver($driver); |
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} |
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if ($builder) { |
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$this->useBuilder($builder); |
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} |
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$this->compiler = new ModelCompiler(); |
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} |
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/** |
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* Set a driver to be used for queries. |
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* |
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* @param Driver $driver Driver to be used. |
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* @return $this |
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*/ |
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public function useDriver(Driver $driver): static |
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{ |
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$this->driver = $driver; |
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return $this; |
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} |
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/** |
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* Set query builder to be used. |
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* |
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* @param QueryBuilder $builder Builder to be used. |
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* @return $this |
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*/ |
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public function useBuilder(QueryBuilder $builder): static |
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{ |
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$this->builder = $builder; |
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return $this; |
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} |
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public function toModelStructure(string $modelClass): array |
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{ |
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// Relational handler for complex models |
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// Relational handler should have find, save, delete implemented for the model class |
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// and the model class should not have any attributes. |
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// relational handler needs to be registered in this mapper to be used |
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// models are missing multi primary keys relations |
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// columns are missing a primary key flag (for insert/update check) |
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return $this->compiler->resolve($modelClass); |
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} |
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public function find(string $modelClass) |
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{ |
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} |
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public function save($model) |
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{ |
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} |
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public function delete($model) |
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{ |
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} |
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} |
ArekX /
PQL
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