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<?php |
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namespace vakata\orm; |
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use \vakata\database\DBInterface; |
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use \vakata\database\schema\TableQuery; |
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/** |
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* Manager ORM class |
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*/ |
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class Manager |
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{ |
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/** |
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* @var DBInterface |
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*/ |
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protected $db; |
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/** |
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* @var DataMapper[] |
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*/ |
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protected $map; |
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/** |
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* Create an instance |
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* @param DBInterface $db the database schema |
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*/ |
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public function __construct(DBInterface $db) |
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{ |
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$this->db = $db; |
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$this->map = []; |
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} |
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/** |
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* Add a mapper for a specific table |
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* |
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* @param string $table the table name |
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* @param DataMapper $mapper the mapper instance |
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* @return $this |
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*/ |
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public function registerMapper(string $table, DataMapper $mapper) |
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{ |
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$this->map[$table] = $mapper; |
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return $this; |
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} |
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/** |
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* Add a generic mapper for a table name |
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* |
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* @param string $table the table name |
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* @param callable $creator a callable to invoke when a new instance is needed |
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* @return $this |
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*/ |
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public function registerGenericMapper(string $table, callable $creator) |
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{ |
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return $this->registerMapper($table, new GenericDataMapper($this, $this->db, $table, $creator)); |
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} |
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/** |
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* Add a generic mapper for a table name using a class name |
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* |
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* @param string $table the table name |
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* @param string $class the class name to use when creating new instances |
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* @return $this |
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*/ |
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public function registerGenericMapperWithClassName(string $table, string $class) |
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{ |
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return $this->registerGenericMapper($table, function () use ($class) { |
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return new $class; |
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}); |
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} |
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/** |
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* Is a mapper available for a given table name |
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* |
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* @param string $table the table name |
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* @return boolean |
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*/ |
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public function hasMapper(string $table) |
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{ |
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return isset($this->map[$table]); |
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} |
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/** |
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* Get a mapper for a table name, if a mapper is not found a new generic mapper is registered using \StdClass |
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* |
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* @param string $table |
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* @return DataMapper |
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*/ |
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public function getMapper(string $table) |
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{ |
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if (!isset($this->map[$table])) { |
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$this->registerGenericMapper($table, function () { |
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return new class() extends \StdClass implements LazyLoadable { |
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use LazyLoad; |
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}; |
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}); |
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} |
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return $this->map[$table]; |
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} |
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public function __call(string $table, array $args) |
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{ |
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$collection = $this->fromTable($table); |
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return !count($args) ? |
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$collection : |
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$collection->find($args[0]); |
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} |
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/** |
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* Get a repository from a table query |
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* |
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* @param TableQuery $query |
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* @return Repository |
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*/ |
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public function fromQuery(TableQuery $query) : Repository |
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{ |
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return new DatabaseRepository($this->getMapper($query->getDefinition()->getName()), $query); |
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} |
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/** |
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* Get a repository for a given table name |
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* |
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* @param string $table |
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* @return Repository |
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*/ |
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public function fromTable(string $table) : Repository |
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{ |
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return $this->fromQuery($this->db->table($table)); |
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} |
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} |
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