I am trying to use multiple models in my view. My view is a single items and the models are lists displayed within the view using tabs.
in my controller I added the setModel in the display function
class ComplianceControllerCompliance extends JControllerForm
{
public function display( $cachable = false, $urlparam = array() )
{
$view = $this->getView( 'myview', 'html' );
$view->setModel( $this->getModel( 'mymodel' ), true );
$view->setModel( $this->getModel( 'content' ) );
$view->display();
}
In my view I try to access the needed information like this
$this->content_items = $this->get( 'Items', 'content' );
$this->content_pagination = $this->get( 'Pagination', 'content' );
$this->content_state = $this->get( 'State', 'content' );
but I dont get any information.
What am I doing wrong?
The basis of working with multiple models is finding a way to get an instance of each model. The most likely issue is that $this->getModel('yourmodelname') returns false.
Test that this part works:
$testModel = $this->getModel('yourmodelname');
var_dump($testModel);
I guess you have already studied the Using multiple models in an MVC component article.
Related
sorry if this has been asked before, I looked around but haven't found this specific question on StackOverFlow.com.
I have a view called 'view-post-wall' which I'm trying to add the form that submits posts to this view called 'post' via ajax submit, though I haven't begun adding ajax yet.
My module's name is 'friendicate'
I don't understand what I'm missing here, I'm following a tutorial and have been unable to get past this issue for 2 days now.
I don't get any errors either.
Here is the module code in full
function _form_post_ajax_add() {
$form = array();
$form['title'] = array(
'#type' => 'textfield',
'#title' => 'Title of post',
);
$form['body'] = array(
'#type' => 'textarea',
'#title' => 'description',
);
$form['submit'] = array(
'#type' => 'submit',
'#value' => 'Submit post',
);
return $form;
}
function post_ajax_preprocess_page(&$variables) {
//krumo($variables);
$arg = arg();
if($arg[0] == 'view-post-wall') {
$variables['page']['content']['system_main']['main']['#markup'] = drupal_render(drupal_get_form('_form_post_ajax_add'));
}
}
There are multiple ways to accomplish this, and I'll outline those methods below. Also, if nothing works from my suggestions below, it's possible that you have an invalid form function name. Im not sure if that throws off Drupal or not. The correct format for the function name should end in _form and contain the arguments $form and $form_state, like so:
_form_post_ajax_add_form($form, &$form_state) { ... }
Also, if you want to use a hook, Steff mentioned in a comment to your question that you'll need to use your module name in the function name.
friendicate_preprocess_page(&$variables) { ... }
Ok, now for a few ideas how to get the form on the page.
Block
You can create a custom block within your module, and then assign it to a region in admin/structure/blocks
<?php
/**
* Implements hook_block_info().
*/
function friendicate_block_info() {
$blocks = array();
$blocks['post_ajax'] = array(
'info' => t('Translation Set Links'),
'cache' => DRUPAL_NO_CACHE,
);
return $blocks;
}
/**
* Implements hook_block_view().
*/
function friendicate_block_view($delta = '') {
$block = array();
if ($delta == 'post_ajax') {
$form = drupal_get_form('_form_post_ajax_add_form');
$block['content'] = $form;
}
return $block;
}
Clear the cache and your block should appear in admin/structure/blocks
Views attachment before/after
You can add markup before and after a view using the Views hook hook_views_pre_render()
<?php
/**
* Implements hook_view_pre_render().
*/
function frendicate_views_pre_render(&$view) {
if($view->name == 'view_post_wall') { // the machine name of your view
$form = drupal_get_form('_form_post_ajax_add_form');
$view->attachment_before = render($form);
}
}
Or maybe use view post render
function friendicate_views_post_render(&$view, &$output, &$cache) {
//use the machine name of your view
if ($view->name == 'view_post_wall') {
$output .= drupal_render(drupal_get_form('_form_post_ajax_add'));
}
}
I want to create component based on com_weblinks.
This component will display categories and links on single page.
In 3.0 I don't understand how I can use 2 models (categories models and links model) in one view.
First approach
I did this by modifying the controller as follows (this is the controller for user)
function doThis(){ // the action in the controller "user"
// We will add a second model "bills"
$model = $this->getModel ( 'user' ); // get first model
$view = $this->getView ( 'user', 'html' ); // get view we want to use
$view->setModel( $model, true ); // true is for the default model
$billsModel = &$this->getModel ( 'bills' ); // get second model
$view->setModel( $billsModel );
$view->display(); // now our view has both models at hand
}
In the view you can then simply do your operations on the models
function display($tpl = null){
$userModel = &$this->getModel(); // get default model
$billsModel = &$this->getModel('bills'); // get second model
// do something nice with the models
parent::display($tpl); // now display the layout
}
Alternative approach
In the view directly load the model:
function display($tpl = null){
// assuming the model's class is MycomponentModelBills
// second paramater is the model prefix
$actionsModel = JModel::getInstance('bills', 'MycomponentModel');
}
I'm using Datamapper ORM for CodeIgniter I have rules 'serialized' and get_rules 'unserialized' for a field in my model. This field will store serialized data and when I retrieve back, get_rules will unserialize it.
However, after calling save(), I'm trying to re-access the field, but it still return serialized string, instead of array.
Is there any way to re-call or refresh my object so that the get_rules is called again and the field now return array?
Here's my model:
class User extends DataMapper{
public $validation = array(
'password' => array(
'label' => 'Password',
'rules' => array('encrypt')
),
'preferences' => array(
'rules' => array('serialize'),
'get_rules'=> array('unserialize')
)
);
function __construct($id = NULL)
{
parent::__construct($id);
}
function post_model_init($from_cache = FALSE)
{
}
public function _encrypt($field)
{
if (!empty($this->{$field}))
{
$this->{$field} = md5($this->{$field});
}
}
}
Datamapper ORM, afaik, will only use the get_rules when actually performing a get(). A few things you could try:
Given the following
$a = new Fruit();
$a->name = 'grapes';
$a->colors = serialize(array("purple","green"));
$a->save();
1. Create a new datamapper object and re-fetch:
$b = new Fruit();
$b->where('id', $a->id)->get();
$colors = $b->colors;
2. unserialize() the field yourself...
$colors = unserialize($a->colors);
3. You might even be able to use get_clone()
//not tested...
$b = $a->get_clone();
$colors = $b->colors;
This has been fixed here: https://bitbucket.org/wanwizard/datamapper/commits/db6ad5f2e10650b0c00c8ef9b7176d49a8e85163
Get the latest Datamapper library from bitbucket.
I'm using Symfony 2.1 forms with PropelBundle and I'm trying to refactor a form that had a drop-down list of objects (to select from) to instead use a jquery autocomplete field (working with AJAX). For the dropdown list I was using the following code (which worked perfectly for the drop-down) in my form type:
$builder->add('books', 'collection', array(
'type' => 'model',
'options' => array(
'class' => 'MyVendor\MyBundle\Model\Book',
'property' => 'title',
),
'allow_add' => true,
'allow_delete' => true,
'by_reference' => false,
'required' => false,
));
For the sake of giving a little context, let's say we are creating a new "Reader" object and that we would like to select the Reader's favorite books from a list of available "Book" objects. A collection type is used so that many "favorite books" can be selected in the new "Reader" form. Now, I would like to change the above to use autocomplete. For doing so, I tried to implement a Data Transformer to be able to get a Book object from a simple text field that could be used for the Autocomplete function to pass the Book ID as indicated in the answer to this Question. However, I was not able to figure out how to make the Data Transformer work with a collection type and Propel classes. I created a BookToIdTransformer class as indicated in the Symfony Cookbook and tried the following in the "ReaderType" file:
$transformer = new BookToIdTransformer();
$builder->add(
$builder->create('books', 'collection', array(
'type' => 'text',
'allow_add' => true,
'allow_delete' => true,
'by_reference' => false,
'required' => false,
))->addModelTransformer($transformer)
);
With the above, I get a "Call to undefined method: getId" exception (apparently the Transformer expects a PropelCollection of Books, not a single Book object..). Does anyone know how to go about it? or let me know if there are other ways to implement the autocomplete in Symfony using Propel and allowing for selecting multiple objects (e.g. a collection of books)?
The solution I ultimately went for is slightly different from my previous answer. I ended up using a "text" field type instead of a "collection" field type in my "ReaderType" form, since I ended up using the Loopj Tokeninput jQuery plugin which allows for selecting multiple objects (e.g. "Favorite Book") to associate to my main object (e.g. "Reader" object) in the form. Considering that, I created a "Data Transformer" for transforming the objects' ids passed (in a comma separated list in the text field) into a Propel Object Collection. The code is shared as follows, including a sample ajax object controller.
The key part of the "ReaderType" form looks as follows:
$transformer = new BooksToIdsTransformer();
$builder->add(
$builder->create('books', 'text', array(
'required' => false,
))->addModelTransformer($transformer)
);
The "Data Transformer" file looks like this:
// src/MyVendor/MyBundle/Form/DataTransformer/BooksToIdsTransformer.php
namespace MyVendor\MyBundle\Form\DataTransformer;
use \PropelObjectCollection;
use Symfony\Component\Form\DataTransformerInterface;
use Symfony\Component\Form\Exception\UnexpectedTypeException;
use MyVendor\MyBundle\Model\BookQuery;
class BooksToIdsTransformer implements DataTransformerInterface
{
public function transform($books)
{
if (null === $books) {
return "";
}
if (!$books instanceof PropelObjectCollection) {
throw new UnexpectedTypeException($books, '\PropelObjectCollection');
}
$idsArray = array();
foreach ($books as $book) {
$idsArray[] = $book->getId();
}
$ids = implode(",", $idsArray);
return $ids;
}
public function reverseTransform($ids)
{
$books = new PropelObjectCollection();
if ('' === $ids || null === $ids) {
return $books;
}
if (!is_string($ids)) {
throw new UnexpectedTypeException($ids, 'string');
}
$idsArray = explode(",", $ids);
$idsArray = array_filter ($idsArray, 'is_numeric');
foreach ($idsArray as $id) {
$books->append(BookQuery::create()->findOneById($id));
}
return $books;
}
}
The ajax controller that returns a json collection of "books" to the Tokeninput autocomplete function is as follows:
namespace MyVendor\MyBundle\Controller;
use Symfony\Bundle\FrameworkBundle\Controller\Controller;
use Symfony\Component\HttpFoundation\Request;
use Symfony\Component\HttpFoundation\Response;
use MyVendor\MyBundle\Model\BookQuery;
class ClassAjaxController extends Controller
{
public function bookAction(Request $request)
{
$value = $request->get('q');
$books = BookQuery::create()->findByName('%'.$value.'%');
$json = array();
foreach ($books as $book) {
$json[] = array(
'id' => $book->getId(),
'name' => $book->getName()
);
}
$response = new Response();
$response->setContent(json_encode($json));
return $response;
}
}
And finally, the router in the "routing.yml" file:
ajax_book:
pattern: /ajax_book
defaults: { _controller: MySiteBundle:ClassAjax:book }
I need to set up the validation rules to validate the related items on a specific object, ie: A user can have no more than 3 products related to it.
I believe DataMapper can check for this validation using _related_max_size rule, but I can't figure out how to use it on the $validation array in the model.
So far I've tried this in both my user and product models:
var $validation = array(
'product' => array(
'rules' => array('max_size' => 3)
)
);
Can somebody show me an example on how to set up this at the model, controller and finally the view?
Edit: What I mean is, a user has many products, and can create a certain amount of them, let's say 3 products, when that amount is reached, the user can no longer create products, and this validation rule should not permit the user to create more products.
This would be the DB Schema:
Users table
------------------
id | username |
------------------
Products table
------------------------
id | user_id | name |
------------------------
More info here: http://codeigniter.com/forums/viewthread/178045/P500/
Thanks!
EDIT:
Ok, I got it all working now… Except, I need to do the following:
var $validation = array(
'product' => array(
'label' => 'productos',
'rules' => array('required','max_size' => $products_limit)
)
);
The $products_limit comes from the “plan” the user has associated, and it’s stored in the session when the user logs in. When I try to run this I get:
Parse error: syntax error, unexpected T_VARIABLE in /var/www/stocker/application/models/user.php on line 11
Is there any way to make this setting dynamic?
In model
var $validation = array(
array(
'field' => 'username',
'label' => 'Username',
'rules' => array('required')
)
);
In controller. $this -> $object = new Your_model();
$object->validate();
if ($object->valid)
{ $object->save();
// Validation Passed
}
else
{ $data['error'] = $object->error;
// Validation Failed
}
In view.
echo $error->field_name
I never use Codeigniter before, but give me a chance to help you. So far I didn't found any built-in validation in Code-igniter (correct me if I'm wrong).
One workaround that I could think of is to Callback:Your own Validation Functions. Below is a snip. Pardon me if it didn't work as you want.
In Model: (create something like)
function product_limit($id)
{
$this->db->where('product_id',$id);
$query = $this->db->get('products');
if ($query->num_rows() > 3){
return true;
}
else{
return false;
}
}
In controller: (create something like)
function productkey_limit($id)
{
$this->product_model->product_exists($id);
}
public function index()
{
$this->form_validation->set_rules('username', 'Username', 'callback_product_limit');
}
For more information Please refer to the manual page which gives more complete. I am also new to CodeIgniter. But I hope this helps you, not complicate you.
First, set up a custom validation rule in libraries/MY_Form_validation.php
If the file doesn't exist, create it.
Contents of MY_Form_validation.php:
<?php if ( ! defined('BASEPATH')) exit('No direct script access allowed');
class MY_Form_validation extends CI_Form_validation
{
function __construct($config = array())
{
parent::__construct($config);
}
function valid_num_products()
{
//Perhaps it would be better to store a maxProducts column in your users table. That way, every user can have a different max products? (just a thought). For now, let's be static.
$maxProducts = 3;
//The $this object is not available in libraries, you must request an instance of CI then, $this will be known as $CI...Yes the ampersand is correct, you want it by reference because it's huge.
$CI =& get_instance();
//Assumptions: You have stored logged in user details in the global data array & You have installed DataMapper + Set up your Product and User models.
$p = new Product();
$count = $p->where('user_id', $CI->data['user']['id'])->count();
if($count>=$maxProducts) return false;
else return true;
}
}
Next, set up your rule in config/form_validation.php.
Contents of form_validation.php
<?php if ( ! defined('BASEPATH')) exit('No direct script access allowed');
$config = array
(
'addProduct' => array
(
array
(
'field' => 'name',
'label' => 'Product Name',
'rules' => 'required|valid_num_products'
)
)
);
Next, set up your error message in language/english/form_validation_lang.php. Add the following line:
$lang['valid_num_products'] = "Sorry, you have exceeded your maximum number of allowable products.";
Now in the Controller, you'll want something along the lines of:
class Products extends MY_In_Controller
{
function __construct()
{
parent::__construct();
$this->load->library('form_validation');
}
function add()
{
$p = $this->input->post();
//was there even a post to the server?
if($p){
//yes there was a post to the server. run form validation.
if($this->form_validation->run('addProduct')){
//it's safe to add. grab the user, create the product and save the relationship.
$u = new User($this->data['user']['id']);
$x = new Product();
$x->name = $p['name'];
$x->save($u);
}
else{
//there was an error. should print the error message we wrote above.
echo validation_errors();
}
}
}
}
Finally, you might wonder why I've inherited from MY_In_Controller. There is an excellent article written by Phil Sturgeon over on his blog entitled Keeping It Dry. In the post he explains how to write controllers that inherit from access-controlling Controllers. By using this paradigm, controllers that inherit from MY_In_Controller can be assumed to be logged in, and the $this->data['user']['id'] stuff is therefore assumed to be available. In fact, $this->data['user']['id'] is SET in MY_In_Controller. This helps you seperate your logic in such a way that you're not checking for logged in status in the constructors of your controllers, or (even worse) in the functions of them.