1. Zend_Db
2010 / 03 / 06

2. • Zend_Framework
• Zend_Db
•

3. Zend_Framework
2008 6 1
Zend_Framework Ver1.5
8 Zend_Framework
AX_Framework1.0
6
AX_Framework

4. Zend_Db
Zend_Db
Zend_Db_Adapter DB
Zend_Db_Table DB
a) Zend_Db_Table DAO
select insert update
b) Zend_Db_Table Zend_Db_Table_Row Zend_Db_Tabl
e_Rowset

5. Zend_Db
Zend_Db_Adapter DB
//
$params = array(
'host' => 'localhost',
'username' => 'webuser',
'password' => 'xxxxxxxx',
'dbname' => 'test'
);
$db = Zend_Db::factory('Pdo_Mysql', $params);
//
$results = $db->fetchAll('SELECT * FROM book WHERE id = ?', 123);
//
$data = array(
'created' => time(),
'tite' => ' 1 ',
'author' => ' '
);
$db->insert('book', $data);

6. Zend_Db
Zend_Db_Table DB
a)
// DAO
class BookDAO extends App_Db_Table {
protected $_name = 'book';
public function getBooksByAuthor($author) {...}
public function insert($data) {...}
}
// DAO
$dao = new BookDAO();
//
$rowset = $dao->fetchAll();
$rowset = $dao->getBooksByAuthor(' ');
//
$data = array('tite' => ' ','author' => ' ');
$dao->insert($data);

7. Zend_Db
Zend_Db_Table DB
b)
// Table
class BookTable extends App_Db_Table {
protected $_name = 'book';
protected $_rowClass = 'BookRow';
protected $_rowsetClass = 'BookRowset';
public function getBooksByAuthor($author) { }
}
// Row
class BookRow extends App_Db_Table_Row {
}
// Rowset
class BookRowset extends App_Db_Table_Rowset {
}
// Table
$table = new BookTable();
//
$rowset = $table->fetchAll();
$rowset = $table->getBooksByAuthor(' ');
//
$data = array('tite' => ' ', 'author' => ' ');
$row = $table->createRow($data);
$row->save();

8. Zend_Db
Zend_Db_Table DB b)

9. Zend_Db
Table
getXXX getXXX
Rowset Array
select
Row
Rowset

10. Zend_Db

11. Zend_Db
Table
1. select Zend_Db_Table_Select
2. createRow()
3. static

12. Zend_Db
Table
// Table
class BookTable extends App_Db_Table {
protected $_name = 'book';
protected $_rowClass = 'BookRow';
protected $_rowsetClass = 'BookRowset';
public function selectActive() {
return parent::select('deleted IS NULL');
}
public function selectByAuthor($author) {
return $this->selectActive()->where('author = ?', $author);
}
}
// Table
$table = new BookTable();
//
$rowset = $table->fetchAll($table->selectByAuthor(' '));
$rowset = $table->fetchAll($table->selectByAuthor(' ')->where('created < ', '1992-03-31'));
Select
→DRY
Zend_Db

13. Zend_Db
Row
Row Rowset
User < > Blog < > Comment
// Row
class BlogRow extends App_Db_Table_Row {
public function getUser() {
$userTable = new UserTable();
return $userTable->find($this->user_id)->current();
}
public function getComments() {
$commentTable = new CommentTable();
return $commentTable->fetchAll($commentTable->select()->where('blog_id = ?', $this->id));
}
}
// Table
$table = new BlogTable();
// BlogRow
$row = $table->find(123)->current();
// Blog
$nickname = $row->getUser()->nickname;
// Blog
$comments = $row->getComments();

14. Zend_Db
Rowset
// Rowset
class BookRowset extends App_Db_Table_Rowset {
public function toArrayGroupByAuthor() {
$array = array();
while ($this->valid()) {
$row = $this->current();
$array[$row->author] = isset($array[$row->author]) ? array_push($array[$row->author], $row) : array($row);
$this->next();
}
}
}
// Table
$table = new BookTable();
// Author
$authorsArray = $table->fetchAll()->toArrayGroupByAuthor();