Created
May 30, 2012 14:06
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| class Model_Blog_Entity extends Model_Entity { | |
| protected $_id; | |
| protected $_title; | |
| protected $_post; | |
| protected $_author; | |
| public function getId() { | |
| return $this->_id; } | |
| public function setId() { | |
| $this->_id = $id; | |
| } | |
| ... | |
| } |
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| class Model_Blog_Mapper extends Model_Mapper { | |
| protected $_tableName = “blogposts”; | |
| protected $_primaryKey = “id”; | |
| protected function _toArray(Model_Entity $obj) { | |
| $data = array(); | |
| $data[‘id’] = $obj->getId(); | |
| $data[‘title’] = $obj->getTitle(); | |
| ... | |
| return $data; | |
| } | |
| protected function _fromArray(array $data) { | |
| $obj = new Model_Blog_Entity(); | |
| $obj->setId($data[‘id’]); | |
| $obj->setTitle($data[‘title’]); | |
| ... | |
| return $obj; | |
| } | |
| } |
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| abstract class Model_Entity { | |
| } |
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| abstract class Model_Mapper { | |
| protected $_tableName = ‘’; | |
| protected $_primaryKey = ‘’; | |
| protected $_table; | |
| function __construct() { | |
| $this->_table = new Zend_Db_Table($this->_tableName); | |
| } | |
| function findByPk($value) { | |
| $select = $this->_table->select()->where($this->_primaryKey . ‘ = ?’, $value); | |
| $row = $select->fetchRow($select); | |
| if ($row == null) return null; | |
| return $this->_fromArray($row->toArray()); | |
| } | |
| public function fromArray(array $data) { | |
| return $this->_fromArray($data); | |
| } | |
| abstract protected function _toArray(Model_Entity $obj); | |
| abstract protected function _fromArray(array $data); | |
| function save(Model_Entity $obj) { | |
| $data = $this->_toArray($obj); | |
| if ($obj->getId() == 0) { | |
| $row = null; | |
| } else { | |
| // Check if record exists on PK. | |
| $select = $this->_table->select()->where($this->_primaryKey.' = ?' , $obj->getId()); | |
| $row = $this->_table->fetchRow($select); | |
| } | |
| if ($row == null) { | |
| // INSERT, record does not exists | |
| $this->_table->insert($data); | |
| } else { | |
| // UPDATE, record does exists | |
| $where = $this->_table->getAdapter()->quoteInto($this->_primaryKey.' = ?', $obj->getId()); | |
| $this->_table->update($data, $where); | |
| } | |
| } | |
| } |
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