php - cakephp join query is not working

Solution:

Kindly check the following your file:

Your controller top "$uses" array contain "DealPurchase" Example

class MerchantController extends AppController {
    var $uses = array(
        'DealPurchase'
    );
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Try the following

$query['conditions'] = array('DealPurchase.deal_id'=>$deal_id);
$query['fields'] = array('DealPurchase.*','User.*');
$query['joins'] = array(
                    array(
                        'table'=>'users',
                        'alias'=>'User',
                        'type'=>'INNER',
                        'conditions'=>array('User.id = DealPurchase.user_id')
                        ),
                );
$query['group'] = array('DealPurchase.user_id');
$result = $this->DealPurchase->find('all', $query);
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database table deal_purchases For Model Name should beDealPurchase.php in the following format

<?php 
class DealPurchase extends AppModel {
    var $name = "DealPurchase";
    //Relationship some tables
    //Validation here
}
?>
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User.php Model(users)

class User extends AppModel {
    var $name = "User"; 
    var $hasMany = array(
        'DealPurchase' => array(
            'className' => 'DealPurchase',
            'foreignKey' => 'user_id',
            'dependent' => true //true means when delete the user entry via coding then also deleted the deal_purchases entry also
        )
    );
    //validation
}
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DealPurchase.php Model(deal_purchases)

class DealPurchase extends AppModel {
    var $name = "DealPurchase"; 
    var $belongsTo = array(
        'User' => array(
            'className' => 'User',
            'foreignKey' => 'user_id'
        )
    );
    //validation
}
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