CakePHP - Manual/Developing/Models/Retrieving

2009-02-17 23:07:27

�� /Manual / Developing / Models / Retrieving �� 2009-02-17 23:07:27 � 2009-02-17 23:11:07

��:

��: Cake PHP? �� , � �� .

��:

��: CakePHP �� , � �� .

2009-02-17 23:05:52

�� /Manual / Developing / Models / Retrieving �� 2009-02-17 23:05:52 � 2009-02-17 23:07:27

��:


<? 
array('fields'=>array('Product.type','MIN(Product.price) as price'), 'group' => 'Product.type'); 
?>

(php)
<?
array('fields'=>array('DISTINCT (User.name?) AS my_column_name'), 'order'=>array('User.id? DESC'));
?>

��:


<? array('fields'=>array('Product.type','MIN(Product.price) as price'), 'group' => 'Product.type'); ?>


<? array('fields'=>array('DISTINCT (User.name) AS my_column_name'), 'order'=>array('User.id DESC')); ?>

2009-02-17 22:47:41

�� /Manual / Developing / Models / Retrieving �� 2009-02-17 22:47:41 � 2009-02-17 23:05:52

��:

�� $type �� -�� 'all', 'first', 'count', 'list', 'neighbors' or 'threaded'. 'first' – �� .
�� null. � �� , � �� null:
array («not» => array (

"Post.title?" => null,

�� BETWEEN ��, �� :


<? array('Post.id BETWEEN ? AND ?' => array(1,10)) ?>

��: CakePHP �� , � �� .
� �� GROUP BY?


<? array('fields'=>array('Product.type','MIN(Product.price) as price'), 'group' => 'Product.type'); ?>

�� DISTINCT ��. �� , �� MIN(), MAX(), � ��., � �� :


<? array('fields'=>array('DISTINCT (User.name) AS my_column_name'), 'order'=>array('User.id DESC')); ?>

�� :

'OR' => array(

array('Company.name?' => 'Future Holdings'),
array('Company.name?' => 'Steel Mega Works')

),
'AND' => array(

array(

'OR'=>array(

array('Company.status?' => 'active'),
'NOT'=>array(

array('Company.status?'=> array('inactive', 'suspended'))

)

�� SQL:
%%(sql)
SELECT `Company`.`id`, `Company`.`name`,
`Company`.`description`, `Company`.`location`,
`Company`.`created`, `Company`.`status`, `Company`.`size`
FROM

`companies` AS `Company`

WHERE

((`Company`.`name` = 'Future Holdings')
OR
(`Company`.`name` = 'Steel Mega Works'))

AND

((`Company`.`status` = 'active')
OR (NOT (`Company`.`status` IN ('inactive', 'suspended'))))

<< �� ? | �� >>?

��:

�� $type �� -�� 'all', 'first', 'count', 'list', 'neighbors' or 'threaded'. 'first' – �� .

2009-02-17 21:57:29

�� /Manual / Developing / Models / Retrieving �� 2009-02-17 21:57:29 � 2009-02-17 22:47:41

��:


<? array("Post.title <>" => "This is a post") ?>

��, �� '<>' �� . CakePHP �� SQL �� , �� , �� LIKE, BETWEEN, �� REGEX, �� . �� – �� IN (...). ��, �� :

"Post.title?" => array(«�� », «�� », «�� »)

�� NOT IN(...) ��, �� , �� :

“NOT” => array( "Post.title?" => array(«�� », «�� », «�� ») )

�� , �� /�� :
array (

"Post.title?" => array(«�� », «�� », «�� »),
"Post.created? >" => date('Y-m-d', strtotime(«-2 weeks»))

�� , �� :


<? array("Post.created = Post.modified") ?>

� �� , �� , � �� (�.�. ��, �� ).
��, �� WHERE ��, �� , ��:

'Model.field? & 8 = 1',
//��

�� CakePHP �� AND; �� – �� , �� . ��, �� , �� OR:
array( “or” => array (

"Post.title?" => array(«�� », «�� », «�� »),
"Post.created? >" => date('Y-m-d', strtotime(«-2 weeks»))

�� SQL-��, �� AND, OR, NOT, XOR, � ��. �� . �� «��». ��, � �� belongsTo �� Posts � Authors. � �� , �� («��») ��, �� , �� , �� :
array (

"Author.name?" => «��»,
“or” => array (

"Post.title? LIKE" => "%��%",
"Post.created? >" => date('Y-m-d', strtotime(«-2 weeks»))

)

2009-02-16 22:54:02

�� /Manual / Developing / Models / Retrieving �� 2009-02-16 22:54:02 � 2009-02-17 21:57:29

��:

��

�� . �� – �� SQL �� WHERE. �� , �� .
�� , � ��, �� . � ��, �� (��, ��, ��, � ��.) �� . �� CakePHP �� , �� SQL ��, � �� .
�� , �� , �� :
$conditions = array("Post.title?" => «�� »);
//�� :
$this->Post->find($conditions);
�� : �� , �� «�� ». �� , �� “title” � �� , �� . �� , �� .
�� , �� . ��, �� , � �� «�� »:

��:

Complex Find Conditions

2009-02-16 15:23:53

�� /Manual / Developing / Models / Retrieving �� 2009-02-16 15:23:53 � 2009-02-16 22:54:02

��:

�� SQL �� query().

��:

�� SQL �� query().

2009-02-16 14:20:51

�� /Manual / Developing / Models / Retrieving �� 2009-02-16 14:20:51 � 2009-02-16 15:23:53

��:

findCount(string $conditions, int $recursive)

�� , �� find('count').
�� , �� . �� $recursive, �� , �� CakePHP �� (�� ) �� .

field

field(string $name, array $conditions = null, string $order = null)

�� , �� $name, �� , �� $conditions � �� $order. �� , �� id, �� $name �� id. �� , �� false.
$model->id = 22;
echo $model->field('name'); // �� name �� id=22
// �� name ��, �� .
echo $model->field('name', array('created <' => date('Y-m-d H:i:s')), 'created DESC');

Complex Find Conditions

2009-02-16 13:39:30

�� /Manual / Developing / Models / Retrieving �� 2009-02-16 13:39:30 � 2009-02-16 14:20:51

��:

generateList

generateList(string $conditions, string $order, int $limit, string $keyPath, string $valuePath)

generateList �� find('list'), �� find('all'), �� Set::combine().
�� /�� – �� HTML �� select �� . �� $conditions, $order, � $limit �� , �� findAll() ��.
�� $primaryKey � $displayField �� , �� , �.�. �� , �� $keyPath � $keyValue, ��. ��, �� $keyPath �� $displayField �� , �� CakePHP �� , �� 'title' �� 'name'.
�� $keyPath � $valuePath �� . �� , �� Role, � �� integer id, �� , ��, ��.:
$this->Role->generateList(

null,
'role_name ASC',
null,
'{n}.Role.id?',
'{n}.Role.role_name?'

//�� , �� :

'1' => 'Head Honcho',
'2' => 'Marketing',
'3' => 'Department Head',
'4' => 'Grunt'

�� '{n}', �� generateList(). �� , �� -�� . �� .

findCount

��:

generateList(string $conditions, string $order, int $limit, string $keyPath, string $valuePath)

2009-02-16 12:58:26

�� /Manual / Developing / Models / Retrieving �� 2009-02-16 12:58:26 � 2009-02-16 13:39:30

��:

�� , �� , �� false. ��: query($query, $cachequeries = false).
query() �� , �� , � �� . ��,


<? $this->Picture->query("SELECT * FROM pictures LIMIT 2;"); ?>

��

[pictures] => Array

[id] => 1304
[user_id] => 759

[pictures] => Array

[id] => 1305
[user_id] => 759

�� , � �� , � �� , �� :
%%(php)<? $this->Picture->query(«SELECT * FROM pictures AS Picture LIMIT 2;"); ?>
��:

[Picture] => Array

[id] => 1304
[user_id] => 759

[Picture] => Array

[id] => 1305
[user_id] => 759

generateList(string $conditions, string $order, int $limit, string $keyPath, string $valuePath)

CakePHP - Manual/Developing/Models/Retrieving

2009-02-17 23:07:27

2009-02-17 23:05:52

2009-02-17 22:47:41

2009-02-17 21:57:29

2009-02-16 22:54:02

����������� ������� ������

Complex Find Conditions

2009-02-16 15:23:53

2009-02-16 14:20:51

field

Complex Find Conditions

2009-02-16 13:39:30

generateList

findCount

2009-02-16 12:58:26

��