Model
<?php
class Tonguetwister extends AppModel {
var $name = 'Tonguetwister';
//The Associations below have been created with all possible keys, those that are not needed can be removed
var $belongsTo = array(
'language' => array(
'className' => 'language',
'foreignKey' => 'language_alias',
'dependent'=> true
)
);
}
?>
Controller
<?php
class TonguetwistersController extends AppController {
var $name = 'Tonguetwisters';
var $uses = array('Tonguetwister', 'Language');
function index() {
$this->set('languages', $this->Language->find('all'));
}
function view($id = null) {
if (!$id) {
$this->Session->setFlash(__('Invalid tonguetwister', true));
$this->redirect(array('action' => 'index'));
}
$this->set('tonguetwisters', $this->Tonguetwister->find('all', array('conditions' => array('language_alias' => $id))));
}
}
?>
I only want to see languages on index() that have tongue twisters. How can I do this?
There might be a more efficient way, but here's how to pick only unique languages from the Tonguetwister table:
function index() {
$languageList = $this->Tonguetwister->find(
'list',
array(
'fields' => array( 'language_alias', 'language_alias' ),
'group' => 'Tonguetwister.language_alias',
'recursive' => -1
)
);
// $languageList is now an array that holds the language ids
$this->set(
'languages',
$this->Tonguetwister->Language->find(
'all',
array(
'conditions' => array(
'Language.id' => $languageList
)
)
)
);
}
By the way, you don't need to put Language into $uses. Since they have a relation set you can access the Language model with $this->Tonguetwister->Language.
You don't really need to do two SQL queries for this. If the tables are joined on "language_alias" you can do something like this:
function index() {
$this->Language->recursive = 0;
$this->set('languages', $this->Language->find('all', array(
'conditions' => array($this->Language->alias.'.language_alias' => $this->Tonguetwister->alias.'.language_alias')
));
}
You should just do one query that's going to join the tables properly.
Related
I'm trying to define the relations for a specific Model depending on environment variables.
Like this:
class Book extends AppModel {
public function __construct($id = false, $table = null, $ds = null) {
parent::__construct($id, $table, $ds);
if (Configure::read('prefix') == 'admin') {
$this->hasMany['Page'] = array(
// ...
'conditions' => array( /* all pages */ )
);
} else {
$this->hasMany['Page'] = array(
// ...
'conditions' => array( /* only public pages */ )
);
}
}
}
You could argue that I should apply these conditions in the query. But because I'm working with deeply nested relations I wanted to keep conditions centralised.
Now the problem that occurs is: if the Page model has relations to e.g. the Paragraph model and from the BookController I'm trying:
$this->Book->find('first', array(
'conditions' => array('Book.id'=>1),
'contain' => array('Page' => array('Paragraph'))
));
... CakePHP will tell me that Paragraph is not related to the Page model.
If I create the relation by defining a model attribute all goes well:
class Book extends AppModel {
public $hasMany = array(
'Page' => array(
// ...
)
);
}
Why is this? Do I need to manually establish those relations? Is my timing (__construct()) incorrect and should this be done elsewhere?
Kind regards,
Bart
Yes, your timing is incorrect. You should either apply these configuration options before invoking the parent constructor:
if (Configure::read('prefix') == 'admin') {
// ...
}
parent::__construct($id, $table, $ds);
or use Model::bindModel() instead which will create the necessary links:
$this->bindModel(
array('hasMany' => array(
'Page' => array(
// ...
'conditions' => array( /* ... */ )
)
)),
false
);
See also http://book.cakephp.org/...html#creating-and-destroying-associations-on-the-fly
sorry for my english and i'm new using CAKEPHP 2.3
i get a problem using model association where i can't get "joined data" ( i understand that cakephp get automatically joined data if models are set good , obviously i make it wrong )
I have 2 tables in my database:
departements (with the following columns)
-id
-name
-region_id ( region_id is a foreign key on regions(id) )
regions (with the following columns)
-id
-name
i make two models in cakePhp:
Region.php
<?php
class Region extends AppModel {
var $name = 'Region';
var $actsAs = array( 'Containable' );
public $hasMany = array(
'Departement' => array(
'className' => 'Departement',
'foreignKey' => 'region_id',
'dependent' => false
)
);
}
?>
Departement.php
<?php
class Departement extends AppModel {
var $name = 'Departement';
var $actsAs = array( 'Containable' );
public $belongsTo=array(
'Region' => array(
'className' => 'Region',
'foreignKey' => 'region_id',
'dependent' => false
)
);
}
?>
in a another controller where i need departements and regions, i tryed many thinks but after yours i need your help please !!!
i make this :
first attempt:
<?php
class SignalementsController extends AppController {
public $helpers = array('Html', 'Form');
var $name = 'Signalements';
var $uses = array('Signalements','Regions','Departements','Communes');
public $recursive = 4;
public function index() {
$departements = $this->Departements->find('all');
$this->set('departements', $departements);
}
}
who output in the index view:
array(
(int) 0 => array(
'Departements' => array(
'id' => '1',
'name' => 'AIN',
'region_id' => '82'
)
),
(int) 1 => array(
'Departements' => array(
'id' => '10',
'name' => 'AUBE',
'region_id' => '21'
)
)
...
)
but there is no region joined automatically
second attempt: i change the find models from
$regions = $this->Regions->find('all');
$this->set('regions', $regions);
who output :
array(
(int) 0 => array(
'Regions' => array(
'id' => '11',
'name' => 'ILE-DE-FRANCE'
)
), ... );
but there is no departements joined automatically
last
$fields=array('Region.id','Region.nom','Departement.id','Departement.nom');
$all= $this->Regions->Departements->find('all',$fields);
/* or all this not working as execpted
$all= $this->Departements->Regions->find('all',$fields);
$all= $this->Departements->find('all',$fields);
$all= $this->Regions->find('all',$fields);
*/
$this->set('all', $all);
i try to get the regions data inside each departemts for exemple like this
array(
(int) 0 => array(
'Departements' => array(
'id' => '1',
'nom' => 'AIN',
'region' => array( 'id' => '82', 'nom' => 'POITOU-CHARENTES')
)
),
but i get only this :
array(
(int) 0 => array(
'Departements' => array(
'id' => '1',
'nom' => 'AIN',
'region_id' => '82'
)
),
If you have any idea please leave it
thank you very much
You are using Containable behaviour in your model, so try the find with this:
$departements = $this->Departement->find('all', array('contain' => 'Region'));
Also the maximum level for recursive is 2, setting it to 4 (or 1000) has the effect of 2.
Your ID is of type varchar and should be int.
Also, here is a stripped down version of your code
Region.php
<?php
class Region extends AppModel {
var $actsAs = array( 'Containable' );
public $hasMany = array( 'Departement' );
}
?>
Departement.php
<?php
class Departement extends AppModel {
var $actsAs = array( 'Containable' );
public $belongsTo=array( 'Region' );
}
?>
<?php
class SignalementsController extends AppController {
public $helpers = array('Html', 'Form');
var $uses = array('Signalements','Regions','Departements','Communes');
public function index() {
$this->Departement->recursive = 1;
$departements = $this->Departements->find('all');
$this->set('departements', $departements);
}
}
index.ctp
<?php print_r($departements); ?>
What does it give you?
Consider this code:
Controller Code
<?php
App::uses('AppController', 'Controller');
class UsersController extends AppController {
public $components = array(
'Security',
'Session'
);
public function example() {
if ($this->request->is('post')) {
$this->set('some_var', true);
}
}
}
View Code
<?php
echo $this->Form->create();
echo $this->Form->input('name');
echo $this->Form->end('Submit');
Since I have the Security component in place, tampering with the form in any way (such as adding a field to it) will cause the request to be black-holed. I'd like to test this:
Test Code
<?php
class UsersControllerTest extends ControllerTestCase {
public function testExamplePostValidData() {
$this->Controller = $this->generate('Users', array(
'components' => array(
'Security'
)
));
$data = array(
'User' => array(
'name' => 'John Doe'
)
);
$this->testAction('/users/example', array('data' => $data, 'method' => 'post'));
$this->assertTrue($this->vars['some_var']);
}
public function testExamplePostInvalidData() {
$this->Controller = $this->generate('Users', array(
'components' => array(
'Security'
)
));
$data = array(
'User' => array(
'name' => 'John Doe',
'some_field' => 'The existence of this should cause the request to be black-holed.'
)
);
$this->testAction('/users/example', array('data' => $data, 'method' => 'post'));
$this->assertTrue($this->vars['some_var']);
}
}
The second test testExamplePostInvalidData should fail because of some_field being in the $data array, but it passes! What am I doing wrong?
By adding the 'some_field' in the data of ->testAction, the security component will assume that field is part of your app (since it's coming from your code, not a POST array) so it won't be seen as a "hack attempt".
Checking for blackholes is a little more convoluted. But Cake core tests already test the blackhole functionality, so if those tests pass, you don't need to check it in your app.
If you insist though, check out the core Cake tests for guidance:
Specifically:
/**
* test that validatePost fails if any of its required fields are missing.
*
* #return void
*/
public function testValidatePostFormHacking() {
$this->Controller->Security->startup($this->Controller);
$key = $this->Controller->params['_Token']['key'];
$unlocked = '';
$this->Controller->request->data = array(
'Model' => array('username' => 'nate', 'password' => 'foo', 'valid' => '0'),
'_Token' => compact('key', 'unlocked')
);
$result = $this->Controller->Security->validatePost($this->Controller);
$this->assertFalse($result, 'validatePost passed when fields were missing. %s');
}
Lots more examples in the file:
https://github.com/cakephp/cakephp/blob/master/lib/Cake/Test/Case/Controller/Component/SecurityComponentTest.php
I'm building a CakePHP powered website, where users can refer each other, i was thinking about a "Has and Belongs to many" relationship (A user can have multiple referrals, but can be referred only by one)
is this the right way or it's better with another association / road ?
Thanks in advance!
If I'm correct in assuming that a User can refer many, but may only be referred by one, then something like this should suffice for what you're doing:
//User model
$belongsTo = array(
'Referrer' => array(
'className' => 'User',
'foreignKey' = > 'referrer_id'
)
);
$hasMany = array(
'Referree' => array(
'className' => 'User',
'foreignKey' => 'referrer_id'
)
);
Details about Multiple relations to the same model.
An example of how to retrieve the data:
//User model
public $actsAs = array('Containable');
public $recursive = -1; //better to set in AppModel IMO
public function getUser($userId = null) {
if(empty($userId)) return false;
return $this->find('first', array(
'conditions' => array(
$this->alias . '.' . $this->primaryKey => $userId
),
'contain' => array(
'Referrer',
'Referee'
)
));
}
For some reason i'm really having a hard time wrapping my head around HABTM associations. I learn best by watching someone do something and explaining why. Anyways, I have 2 tables I want associated, Drugs, and SideEffects. I've created the intermediate table drugs_side_effects(has no data right now). Does cake put the data in that automatically or do I need to do something? The 3.7.6.5 hasAndBelongsToMany (HABTM) from the book didn't specify.
I've set up the models correctly(I think) and am not sure how to proceed at this point. It seems pretty simple. I need to display side_effect from the SideEffects table in a Drug view. I think in the edit_french controller function i'll need something like
$side_effect = $this->Drug->SideEffect->read(
array('SideEffect.id','SideEffect.side_effect'), $id);
$this->set('side_effect',$side_effect);
but I feel like that won't work as expected. Or maybe there's a more efficient way? Any advice or help is appreciated.
Drug Model:
var $hasAndBelongsToMany = array(
'SideEffect' => array(
'className' => 'SideEffect',
'joinTable' => 'drug_side_effects',
'foreignKey' => 'drug_id',
'associationForeignKey' => 'side_effect_id'
)
);
}
?>
SideEffect Model:
var $hasAndBelongsToMany = array(
'Drug' => array(
'className' => 'Drug',
'joinTable' => 'drug_side_effects',
'foreignKey' => 'side_effect_id',
'associationForeignKey' => 'drug_id'
)
);
}
?>
Drugs Controller:
<?php
class DrugsController extends AppController {
var $name = 'Drugs';
var $helpers = array('Html','Form','Paginator');
var $paginate = array(
//'contain' => array('SideEffect'),
//'fields' => array('Drug.id', 'Drug.generic'),
'fields' => array('Drug.id', 'Drug.generic','Drug.date_altered'),
'limit' => 50,
'order' => array(
'Drug.generic' => 'asc'
)
);
function index() {
$data = $this->paginate('Drug');
$alldrugs = $this->set('drugs', $this->Drug->find('all'));
$this->set('drugs', $data);
$this->set('alldrugs', $data);
//$this->set('lessdrugs', $this->paginate());
$this->set('title_for_layout','List of all current drugs');
}
function edit_french($id = null) {
$this->Drug->id = $id;
$drug = $this->Drug->read(
array(
'Drug.id','Drug.generic','Drug.ahl','Drug.aap','Drug.rid','Drug.oral','Drug.mw','Drug.clinical_recommendations'
),
$id
);
$this->set('title_for_layout', 'Translate clinical recommendations - ' . $drug['Drug']['generic']);
$this->set('drug',$drug);
if (empty($this->data)) {
$this->data = $this->Drug->read();
} else {
if ($this->Drug->save($this->data)) {
$this->Session->setFlash('The drug has been updated.');
$this->redirect(array('action' => 'index'));
}
}
}
}
?>
You can pull the related data using ContainableBehavior. To do so, simply run a find on the Drug model and tell it to contain the associated SideEffect data.
$drug = $this->Drug->find('first', array(
'conditions' => array(
'Drug.id' => $id
),
'contain' => array(
'SideEffect'
)
));
You can also set the contain before using read() if you prefer.
$this->Drug->contain(array('SideEffect'));
$drug = $this->Drug->read(null, $id);
Using Containable allows you to gather all associated data in a single find() request.