I have two models named message.php and user.php
In message.php, I have following method that counts #no of messages of verified users.
<?php
class Message extends AppModel {
...
...
...
function getInboxCount($userId) {
// Here I want to get list of ids of verified users. It means I need to use User model for this. How is it possible?
// $ids = $this->User->find('list', array('conditions' => array('User.status' => 'verified'))); Will this work?
}
}
?>
So how can I use User model in Message model?
If the two models are associated in any way (Message belongsTo User or so), you can access it simply with:
$this->User->find(...);
If they're not associated, you can import any other model at any time using:
$User = ClassRegistry::init('User');
$User->find(...);
Related
Can I use another Model inside one model?
Eg.
<?php
class Form extends AppModel
{
var $name='Form';
var $helpers=array('Html','Ajax','Javascript','Form');
var $components = array( 'RequestHandler','Email');
function saveFormName($data)
{
$this->data['Form']['formname']=$data['Form']['formname'];
$this->saveField('name',$this->data['Form']['formname']);
}
function saveFieldname($data)
{
$this->data['Attribute']['fieldname']=$data['Attribute']['fieldname'];
}
}
?>
Old thread but I'm going to chime in because I believe the answers to be incomplete and lacking in "why". CakePHP has three ways to load models. Though only two methods work outside of a Controller, I'll mention all three. I'm not sure about version availability but this is core stuff so I believe they'll work.
App::import() only finds and require()s the file and you'll need to instantiate the class to use it. You can tell import() the type of class, the name and file path details.
ClassRegistry::init() loads the file, adds the instance to the object map and returns the instance. This is the better way to load something because it sets up "Cake" things as would happen if you loaded the class through normal means. You can also set an alias for the class name which I've found useful.
Controller::loadModel() uses ClassRegistry::init() as well as adds the Model as a property of the controller. It also allows $persistModel for model caching on future requests. This only works in a Controller and, if that's your situation, I'd use this method before the others.
You can create instances of other models from within any model/controller using one of these two methods.
If you're using Cake 1.2:
App::import('model','Attribute');
$attr = new Attribute();
$attr->save($dataYouWantToSavetoAttribute);
If you're using Cake 1.1:
loadModel('Attribute');
$attr = new Attribute();
$attr->save($dataYouWantToSavetoAttribute);
An obvious solution everyone missed is to create an association between two models, if appropriate. You can use it to be able to reference one model from inside another.
class Creation extends AppModel {
public $belongsTo = array(
'Inventor' => array(
'className' => 'Inventor',
'foreignKey' => 'inventor_id',
)
);
public function whoIsMyMaker() {
$this->Inventor->id = $this->field('inventor_id');
return $this->Inventor->field('name');
}
}
In CakePHP 1.2, it's better to use:
ClassRegistry::init('Attribute')->save($data);
This will do simply
<?php
class Form extends AppModel
{
//...
$another_model = ClassRegistry::init('AnotherModel');
//...
}
?>
In CakePHP 3 we may use TableRegistry::get(modelName)
use Cake\ORM\TableRegistry;
$itemsOb = TableRegistry::get('Items');
$items = $itemsOb->find("all");
debug($items);
If you want to use Model_B inside Model_A, add this line at the beginning of Model_A file:
App::uses('Model_B_ClassName', 'Model');
and then you will be able to use it inside Model_A. For example:
$Model_B = new Model_B_ClassName();
$result = $Model_B->findById($some_id);
var $uses = array('ModeloneName','ModeltwoName');
By using $uses property, you can use multiple models in controller instead of using loadModel('Model Name').
App::import('model','Attribute');
is way to use one model into other model. Best way will be to used association.
I'm using CakePHP 2.0.5 (but this isn't necessarily a cakephp specific question). I have a Coupon and a User model. Each time a user prints a coupon (proccessed by: Coupon Controller):
class CouponsController extends AppController {
public function printcoupon($id = null) {
// code
}
}
I want to save the information to a "coupons_printed" table (id/coupon_id/user_id/created). Should I create a new model for this, or should I just create a function inside of the Coupon model similar to (and call it in the controller each time that page is viewed)?:
class Coupon extends AppModel {
function insertIntoPrinted($id) {
$this->query("UPDATE coupons_printed SET .....");
}
}
Whatever you do, a raw SQL query is not the best way to go. Always use CakePHP methods if at all possible (and almost always it is possible).
You should put the insertIntoPrinted() function in the CouponsPrinted model (although, as a side note, PrintedCoupon would be a more natural way to name the model...) You can then add a HasMany relationship to the Coupon model ($hasMany = array( 'CouponsPrinted' )) and call the function in the CouponsController:
public function printcoupon($id = null) {
$this->Coupon->CouponsPrinted->insertIntoPrinted( $id );
}
CakePHP's model has a thing call association.
In your case, Coupon has a hasMany association with coupons_printed.
You can create a new model, or query using the association in the Coupon model, the generated queries will be the same, I believe.
Your CouponsController already depend on Coupon Model, so not creating another model is a better solution.
//index.ctp, this forms points to action updateData in profilesController
$this->Form->input('User.lastname');
$this->Form->input('Profile.age');
$this->Form->input('Profile.height');
$this->Form->input('Associate.city');
$this->Form->end('Submit');
//user.php
Class User extends AppModel {
var $hasOne = array('Profile', 'Associate'};
var $primaryKey = 'user_id';
}
//profile.php
Class Profile extends AppModel {
var $belongsTo = array('User');
var $hasOne = 'Associate';
var $primaryKey = 'user_id';
}
//associate.php
Class Associate extends AppModel {
var $belongsTo = array('User');
var $primaryKey = 'user_id';
}
//profiles_controller.php
Class ProfilesController extends AppController{
function updateData(){
//output incoming request for debugging purposes
debug($this->request->data);
//here i fetch the db to get the id of user
$options =
array('conditions' => array('User.username' => $this->Auth->user('username')),
'fields' => array('User.id')
);
//find user id so we can find user in related tables
$id = $this->Profile->User->find('first', $options);
//here I modify request data so cakephp finds the users through primaryKeys
$this->request->data['Profile']['user_id'] = $id['User']['id'];
$this->request->data['Associate']['user_id'] = $id['User']['id'];
$this->request->data['User']['id'] = $id['User']['id'];
if($this->request->is('post'){
//this updates data in table no problem
$this->Profile->save($this->request->data);
//this updates data in table no problem either
$this->Profile->Associate->save($this->request->data);
//this returns false...it breaks here
$this->Profile->User->save($this->request->data);
}
}
}
Table structure:
User
|id|int|auto increment
|firstname|varchar
|lastname|varchar
|date|timestamp
Profile
|id|int|autoincrement
|user_id|int
|age|int
|height|int
Associate
|id|int|autoincrement
|user_id|int
|city|varchar
|country|varchar
Ok I know what some of you might tell me, why do I do this on the profilesController and
not on the UsersController. Well, my idea is to separate some actual important user
data from the profile data so it's my intention to write the code for profile on the ProfilesController...as I was developing I was assuming that the same Model association would have automatically updated the User.lastname field in the User table..but that is the part where my code breaks and I have tried but I can't make it work
The current association in my mind at least is as follows:
User has one Profile
User has one Associate
Profile belongs to User
Associate belongs to Profile and User
Can anyone tell me what am I doing wrong? i am following what I think is a logical approach for my application, cakephp updates Profile and Associate models but User remains unaffected.
Assuming the primaryKey of your users table is 'id', just remove all of the $primaryKey lines, and try again.
The only reason to set the primary key is if it doesn't follow the default that CakePHP has in place. I would GUESS (can't see your tables) that the primaryKey field in your 'users' table isn't 'user_id' - more likely it's just 'id', and in the other tables, it's 'user_id'. If that's the case, there's no need to specify the $primaryKey, since that's the default of CakePHP.
As it turns out after reading the cakephp documentation (and obviously being a n00b) the reason why my code was breaking is because I had a callback beforeSave in my model. I didn't know that in order to save data I had to disable the callback which was unrelated to the part of the code I presented to you. The solution in a case like this is to do as follows:
$this->Profile->User->save($this->request->data, array('callbacks' => false));
I don't know you guys but sometimes I feel the cakephp documentation is a little too simplistic, I discover this by looking at the API.
I'm new to cakePhp development. I've stuck on following problem:
I've made few models, controllers and views - it works great. The problem is that after production, I have to made new table(Transactionaltemp table and corresponding model and controller ) in the db that logically is "connected" to other tables, but technically does not needs to - for ex. it holds temporary info on user_id, time, ip and similar. So, other tables doesn't need to be directly connected to that.
The problem is when I try (in some other controller than transactionaltemps_controller):
$this->loadModel('Transactionaltemp');
I get error - the model is not found (it is true because the model is missing in the cache). Interesting enough transactionaltempls_controller is in the cache (in the cake_controllers_list file).
I tried following stuff to resolve the problem:
clear cache
disable cache
tried using uses={..} code in the controller that I would like to use mymodels_controller
tried using init('Transactionaltemp')
with no success. Here is corresponding code:
The model:
<?php
class Transactionaltemp extends AppModel
{
var $name = 'Transactionaltemp';
function beforeSave() {
return true;
}
}
?>
The controller:
<?php
class TransactionaltempsController extends AppController
{
var $name = 'Transactionaltemps';
var $scaffold;
}
?>
I'll very grateful to any help!!!
App:Import('Model','Transactionaltemp');
$this->Transactionaltemp= new Transactionaltemp;
I hope this may work
If you are connecting to a table name with different name than your model, you must specify the table name in it:
<?php
class Transactionaltemp extends AppModel
{
var $uses = 'Transactional';
var $name = 'Transactionaltemp';
function beforeSave() {
return true;
}
}
Try
App::Import('Model', 'YourModelName');
in your controller (or where you want).
Can I use another Model inside one model?
Eg.
<?php
class Form extends AppModel
{
var $name='Form';
var $helpers=array('Html','Ajax','Javascript','Form');
var $components = array( 'RequestHandler','Email');
function saveFormName($data)
{
$this->data['Form']['formname']=$data['Form']['formname'];
$this->saveField('name',$this->data['Form']['formname']);
}
function saveFieldname($data)
{
$this->data['Attribute']['fieldname']=$data['Attribute']['fieldname'];
}
}
?>
Old thread but I'm going to chime in because I believe the answers to be incomplete and lacking in "why". CakePHP has three ways to load models. Though only two methods work outside of a Controller, I'll mention all three. I'm not sure about version availability but this is core stuff so I believe they'll work.
App::import() only finds and require()s the file and you'll need to instantiate the class to use it. You can tell import() the type of class, the name and file path details.
ClassRegistry::init() loads the file, adds the instance to the object map and returns the instance. This is the better way to load something because it sets up "Cake" things as would happen if you loaded the class through normal means. You can also set an alias for the class name which I've found useful.
Controller::loadModel() uses ClassRegistry::init() as well as adds the Model as a property of the controller. It also allows $persistModel for model caching on future requests. This only works in a Controller and, if that's your situation, I'd use this method before the others.
You can create instances of other models from within any model/controller using one of these two methods.
If you're using Cake 1.2:
App::import('model','Attribute');
$attr = new Attribute();
$attr->save($dataYouWantToSavetoAttribute);
If you're using Cake 1.1:
loadModel('Attribute');
$attr = new Attribute();
$attr->save($dataYouWantToSavetoAttribute);
An obvious solution everyone missed is to create an association between two models, if appropriate. You can use it to be able to reference one model from inside another.
class Creation extends AppModel {
public $belongsTo = array(
'Inventor' => array(
'className' => 'Inventor',
'foreignKey' => 'inventor_id',
)
);
public function whoIsMyMaker() {
$this->Inventor->id = $this->field('inventor_id');
return $this->Inventor->field('name');
}
}
In CakePHP 1.2, it's better to use:
ClassRegistry::init('Attribute')->save($data);
This will do simply
<?php
class Form extends AppModel
{
//...
$another_model = ClassRegistry::init('AnotherModel');
//...
}
?>
In CakePHP 3 we may use TableRegistry::get(modelName)
use Cake\ORM\TableRegistry;
$itemsOb = TableRegistry::get('Items');
$items = $itemsOb->find("all");
debug($items);
If you want to use Model_B inside Model_A, add this line at the beginning of Model_A file:
App::uses('Model_B_ClassName', 'Model');
and then you will be able to use it inside Model_A. For example:
$Model_B = new Model_B_ClassName();
$result = $Model_B->findById($some_id);
var $uses = array('ModeloneName','ModeltwoName');
By using $uses property, you can use multiple models in controller instead of using loadModel('Model Name').
App::import('model','Attribute');
is way to use one model into other model. Best way will be to used association.