cakephp query with conditions limit and order

三世轮回 提交于 2019-12-14 01:07:51

问题


I want to retrieve the last 3 registered users in cakephp using the field created in table Users.

In my controller I have:

$this->User->recursive = 1;
    $this->set('users',
        $this->User->find('all',
             array('conditions'=> array(
                  'limit' => 3,
                  'order' => array(
                  'created' => 'asc'
                  )
             )
         )
    )
);

The code above when run returns this error:

Syntax error or access violation: 1064 You have an error in your SQL 
syntax; check the manual that corresponds to your MySQL server 
version for the right syntax to use near 'order = ('asc')' at line 

What must I do to resolve the error?


回答1:


Try something like this:

$this->set('users', $this->User->find('all', array(
    'limit' => 3,
    'order' => 'User.created DESC',
    'recursive' => 1,
)));



回答2:


Keep your order and limit out side of condition array then it will work smoothly.

Use this format:

array(
'conditions' => array('Model.field' => $thisValue), //array of conditions
'recursive' => 1, //int
'fields' => array('Model.field1', 'DISTINCT Model.field2'),
'order' => array('Model.created', 'Model.field3 DESC'),
'group' => array('Model.field'), //fields to GROUP BY
'limit' => n, //int
'page' => n, //int
'offset' => n, //int
'callbacks' => true //other possible values are false, 'before', 'after'
)



回答3:


You can easily also select your data by this is sql query :

$sql = "SELECT * FROM users where recursive =1 order by created desc limit 0,3";
$users = $this->users->query($sql);

$this->set(compact('users'));



回答4:


Please try code like given below:

 $this->set('users', $this->User->find('all', array(
                                        'order' => 'created ASC',
                                        'limit' => 3  )
            ));

Please refer to this link for CakePHP find conditions.




回答5:


$dashreport =  $this->Task->find('all', array('conditions' => 
                array('Task.throttle' => "Report", 'Task.status' => Null, 'Task.userid' => $this->Session->read('userid')),'order'=>array('Task.id DESC')
                ,'limit'=> 4));



回答6:


When you limit the data first you should order DESC or ASC. Another easy way that works fine

$this->set('datas',
    $this->Your_Model_Name->find('all',
        array (
            'conditions'    => array('Site_id' => $site_name),   //conditions here
            'fields'        => array('Date_time','Ac_1_Status','Tempin'),
            'order'         => array('id' => 'desc'),  // id desc or asc
            'limit'         => 15
        )
    )
);


来源:https://stackoverflow.com/questions/11274146/cakephp-query-with-conditions-limit-and-order

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