use two databases in a same function in controller CakePHP - php

Question

I am developing an application in CakePHP. I need two databases in same function in same controller. In Invoice I need to to add data in invoices table but need students list to show from another database having students table.
public function add() {
if ($this->request->is('post')) {
$this->Invoice->create();
$this->request->data['Invoice']['created_by'] = $this->Auth->user('id');
if ($this->Invoice->save($this->request->data)) {
$this->Session->setFlash(__('The Invoice has been saved.'), 'default', array('class' => 'alert alert-success'));
}
return $this->redirect(array('action' => 'view',$Invoice_id));
}
// fetch students from different database.
$this->loadModel('Student');
$users = $this->Student->find('list',array('fields'=>array('Student.id','Student.name')));
}
I am using the public $useDbConfig = 'fees'; as second DB configuration but unable to get the data in same function. Please help.
<?php
class DATABASE_CONFIG {
public $default = array(
'datasource' => 'Database/Mysql',
'persistent' => false,
'host' => 'localhost',
'login' => 'root',
'password' => 'admin',
'database' => 'inventory',
'prefix' => '',
//'encoding' => 'utf8',
);
// fetch students from fees controller.
public $fees = array(
'datasource' => 'Database/Mysql',
'persistent' => false,
'host' => 'localhost',
'login' => 'root',
'password' => 'admin',
'database' => 'fees',
'prefix' => '',
//'encoding' => 'utf8',
);
}

Answer 1

You need to declare that your Students model will use a different database source. You are saying that you used the public $useDbConfig = 'fees'; with out mentioning in which model you used this property.
Check this link
We can then configure the datasource in our app/Config/database.php
file by adding something like this:
public $faraway = array(
'datasource' => 'FarAwaySource',
'apiKey' => '1234abcd', );
Then use the database config in our models like this:
class MyModel extends AppModel {
public $useDbConfig = 'faraway';
}
So fees looks like some database that should be used on the Invoice model:
class Invoice extends AppModel {
public $useDbConfig = 'fees';
}
and Students models should most probably stay on the default database
class Students extends AppModel {
public $useDbConfig = 'default'; // This line is optional. Even if you don't write this line your model will load data from the default database.
}
Maybe the databases are the other way around but I think you got the point.
You can still configure the database source of your models from inside your Controller by doing the following:
public function add() {
...
$this->Student->useDbConfig = 'fees'
...
}
or most preferable
public function add() {
...
$this->Student->setDataSource('default')
...
}