I am trying to make a simple ajax request in Ajax in Yii
I have my view file views/items/index.php and a controller file controllers/ItemsController.php
I have inserted a link in my view file
echo CHtml::ajaxLink(
'Test request', // the link body (it will NOT be HTML-encoded.)
array('ajax/reqTest01'), // the URL for the AJAX request. If empty, it is assumed to be the current URL.
array(
'update'=>'#req_res'
)
);
?>
<div id="req_res">...</div>
I have this code in my controller file
public function actionReqTest01() {
echo date('H:i:s');
Yii::app()->end();
}
But Nothing is happening it is giving error 404 (as checked in chrome network tab)
Create Another controller named AjaxController.php
write this code in that.
class AjaxController extends Controller
{
public function actionReqTest01() {
echo date('H:i:s');
Yii::app()->end();
}
}
Related
i am currently learning CI and i have come to an issue that i cant seem to solve.
i set up my wamp server in a drive and inside the www(root) folder i have extracted the codeigniter files.
![example][1][1]: http://i.stack.imgur.com/7RKqG.png
then I created my php files for view/model and controller and set the default route in the config/routes.php
so now when I go to my browser and type localhost I get the post.php displayed without anyissue.
but I am unable to access any of the views from here. for example i have a new_post.php view and when i type in the address bar localhost/new_post.php i get a "Not Found
The requested URL /new_post.php was not found on this server." error.
what am i doing wrong? below i have posted the code which i have written in the post.php controller along with a image of the file structure/names i have.
posts.php - controller
<?php
class Posts extends CI_Controller
{
function __construct()
{
parent::__construct();
$this->load->model('post'); //loads the post model u created in the models folder
}
function index() //goes to this function 1st when u access the controller
{
$data['posts']=$this->post->get_posts(); // load all the data from the get_posts function in post model to the data array posts
$this->load->view('post_index', $data); //loads the view
}
function post($postID)
{
$data['post']=$this->post->get_post($postID);
$this->load->view('post', $data);
}
function new_post()
{
if($_POST)
{
$data=array(
'title'=> $_POST['title'],
'post'=> $_POST['post'],
'active' =>1
);
$this->post->insert_post($data);
redirect(base_url(). 'posts/');
}
else
{
$this->load->view('new_post');
}
}
function editpost($postID)
{
$data['success']=0;
if($_POST)
{
$data_post=array(
'title'=> $_POST['title'],
'post'=> $_POST['post'],
'active' => 1
);
$this->post->update_post($postID,$data);
$data['success'] =1;
}
$data['post']=$this->post->get_post($postID);
$this->load->view('edit_post',$data);
}
function deletepost($postID)
{
$this->post->delete_post($postID);
redirect(base_url(). 'posts/');
}
}
![structure][1] [1]: http://i.stack.imgur.com/SnsbW.png
In CodeIgniter you have to use controller to get access to his function
you are saying "when i type in the address bar localhost/new_post.php i get a Not Found" because you try to direct access its function name you have to use example.com/controllername/functionname like this
http://localhost/posts/new_post
for more information check codeignier url
https://ellislab.com/codeigniter/user-guide/general/urls.html
if you not removed index.php using .htaccess then you have to use your url like this
http://localhost/index.php/posts/new_post
In CodeIgniter, everything runs through the main "index.php" file, in your root directory.
So, you would access your new post page, like this;
http://localhost/index.php/posts/new_post
Have a read through the CodeIgniter user guide, it will answer any problem you have.
https://ellislab.com/codeigniter/user-guide/
My index post controller list all posts in the following way
<?php $this->widget('zii.widgets.CListView', array(
'dataProvider'=>$dataProvider,
'itemView'=>'_view',
'template'=>"{items}\n{pager}",
)); ?>
My view _view has the ajax-link
<div id="comments"></div>
<?php echo CHtml::ajaxLink('List Comments', array('listComments'),
array('update' => '#comments'))?>
listComments is a function in my PostController
public function actionListComments()
{
$this->renderPartial('_comments',array(
'post'=>$model,
'comments'=>$model->comments,
));
}
When I click to the ajax link , nothing happens,
it points to localhost/blog/#
Can you help me please ?
The problem is actionListComments() method returns non-200 HTTP code because of undefined $model variable in it. Try something like this:
_view:
<div id="comments"></div>
<?php echo CHtml::ajaxLink('List Comments', array('listComments', 'id' => $data->id),
array('update' => '#comments'))?>
PostController:
public function actionListComments($id)
{
$model = Posts::model()->findByPk($id);
if($model !== null)
$this->renderPartial('_comments',array(
'post'=>$model,
'comments'=>$model->comments,
));
else
Yii::log('Unknown post with $id ' . $id, 'error');
}
First in actionListComments() you have a variable $model which you haven't instantiated.
Assuming you are getting the $model->id from the link it should change to:
<?php echo CHtml::ajaxLink('List Comments', array('listComments','id'=>$data->id),
array('update' => '#comments'))?>
Next, your actionListComments() should access the id, use this to load a model and its comments, and send this to the required view
public function actionListComments($id){
$model=$this->loadModel($id);
$this->renderPartial('_comments',array('model'=>$model));
}
There is no need to send $model->comments as we are already sending $model therefore we can access $model->comments.
many things could go wrong about that. As ajax calls cant be debugged with normal compnonents like
CVarDumper::Dump();
die();
Above code will not show you anything in the browser area. The best way to debug ajax calls is using inspectElement. Click on Network. Now when you click on ajaxLink it will show you whether the ajax request was sent successfully. It will be red if the request was unsuccessful. When you click on the request made. It will show you 3 tabs on right named Header, Preview, Response. As you want to render the page so the content-Type should be text/html.
As far as your code is concerned clearly you are using $model without instantiating it so it is returning error.
Read the error returned in your case.
I have this controller: Resales, and I am in the Administrator controller and need to create a new Resale.. how should I do that?
first option:
Administrator form calls /resales/addResales
second option: Administrator has a method addResale that loads the Resale model and inserts it.
What should I do?
thanks
Administrator controller shouldn't be loading the Resales controller - that should be a model that both controllers use. You should load your Resales model into the Administrator controller in the $uses = array() property at the top of your controller file:
class AdministratorController extends AppController {
var $uses = array('Resale', //the rest of your models);
public function createResale() {
$this->Resale->create();
$this->Resale->set($this->data['Resale']);
$this->Resale->save();
}
}
Other options are that you could use Ajax to post the request for you, or you could use $this->requestAction() in your Administrator controller to use a processing function in your Resales controller:
// administrator controller
public function createResale() {
// define your data here
$result = $this->requestAction('resales/create', array($data_array));
}
Have a look at the manual for more information on requestAction:
http://book.cakephp.org/2.0/en/controllers.html
EDIT
You've just asked about views. In this case, there's no real need to create a view for createResale(), what you might want to do instead is set a Session flash message, then redirect back to your form. You will need to ensure you've included the Session helper at the top of your controller:
class AdministratorController extends AppController {
var $helpers = array('Session', // any others here);
Then you prevent the layout and render of views, do your thing and set a session flash with the results message:
public function createResale() {
// don't render a view or layout
$this->layout = '';
$this->render(false);
// process your request
$result = // do stuff... return true or false for result
$msg = $result ? 'Added successfully!' : 'Error adding resale!';
// set flash message
$this->Session->setFlash($msg);
// return to that form
$this->redirect(array('action' => 'formYouCameFrom'));
}
Now on your form, you'll simply do this:
echo $this->Session->flash();
... which will output the results.
I am creating a custom MVC style framework from scratch and am at the point where I need to implement the code to control what happens on POST.
At the moment I have a main index.php which acts as a controller and passes data to other controllers such as:
profilecontroller.class.php
forumcontroller.class.php
At the moment I see two options as to where the POST controllers can go ..
First Approach
Firstly for site wide posts such as login that can occur on any page I would use something like this in the very first index.php to redirect all POST to a specific POST controller that then sends the data to a model to be processed:
if($_POST)
//post controller, works on specific form id's
Alternate Approach
The other option I see would be to build the POST identifier into the model construction sections but I don't think this would be very manageable/wise as they'd always be checked and resulting in more loaded code?
Are there any good/simple examples out there?
I'm creating my mvc to be as light as possible so that's my reason for going from scratch.
In a RESTful setup, you would normally have a controller for an object, say news, and then actions such as add, edit, delete etc.
Within your actions, you should then assert what HTTP method should be used to access the method, if one should be. For example:
<?php
class NewsController extends AbstractController {
public function save() {
if ($_SERVER['REQUEST_METHOD'] != 'POST') {
header('HTTP/1.1 405 Method Not Allowed');
die('Please use POST.');
}
// carry on knowing we're working with a POST request
}
}
Creating a separate controller for POST requests would, as you say, quickly becoming unruly and unmanageable.
If you're looking for a way of handling requests for different HTTP methods within different controller actions, then maybe check out ToroPHP. It's a lightweight (single file) router, where you map a request to a class that's referred to as a handler, and then that handler has methods for different HTTP methods. A quick example:
<?php
require 'lib/torophp/toro.php';
require 'classes/handlers/HomeHandler.php';
$toro = new ToroApplication(array(
array('/', 'HomeHandler')
));
$toro->serve();
And then your HomeHandler would look as follows:
<?php
class HomeHandler {
public function get() {
echo 'Hello, world!';
}
public function post() {
echo 'Try performing a GET request for the home page, buddy.';
}
// and so on...
}
Hope that helps.
This is my default Controller :
<?php
Class Controller_Home{
public $Registery = null;
final public function __construct($Registery){ $this->Registery = $Registery; }
final public function Init($Method=null){
# Quelle action on fait ?
if($Method){
$Split = explode('_', $Method);
$MethodName = 'Action';
foreach($Split as $Splitted){
$MethodName.= '_'.ucfirst($Splitted);
}
if(method_exists($this, $MethodName)){
$this->$MethodName();
} else {
echo '404';
die;
}
} else {
$this->Action_Default();
}
}
final public function Action_Default(){
$this->Registery->Import('Library.Account');
var_dump($this->Registery->Account);
echo 'Default Home';
}
}
As you can see, once you are in Action_Default, you can do whatever you want based on $_GET, $_POST, whatever you want ...
So with this code :
website.com/home/bob/ will use function Action_Bob inside the controller Home (Home::Action_Bob) ... if you see $_POST just put inside Action_Bob this
public function Action_Bob(){
if($_POST){
$this->Action_Bob_Post();
}
// continue
}
Suppose someone hits in url http://mysite.com/comments/view/13
But that absentaction is not present in comments controller.
Then it gets normal error like that =>
Error: The action view is not defined in controller CommentsController
Error: Create CommentsController::view() in file: app/controllers/comments_controller.php.
<?php
class CommentsController extends AppController {
var $name = 'Comments';
function view() {
}
}
?>
Notice: If you want to customize this error message, create app/views/errors/missing_action.ctp
What i'm trying to do is that if someone hits url http://mysite.com/comments/view/13 and if the action is not present then it will redirect to http://mysite.com/.
How can i do this for unknown/absent action?
This trick is actually working pretty well.
You need to create a file app/app_error.php
<?php
class AppError extends ErrorHandler {
public function error404($params){
extract($params);
if(!isset($url)){
$url = $action;
}
if(!isset($message)){
$message ="";
}
if(!isset($base)){
$base = "";
}
$this->controller->redirect(array('controller'=>'pages','action'=>'home'));
//Or the page you want...
}
}
?>
How does it work?
It actually override the error404() function from the ErrorHandler and redirect the user whith $this->controller->redict();
Notice at the bottom of the error message, it says you can customize it by creating app/views/errors/missing_action.ctp. So all you need to do is create that .ctp file and include a redirect in it like this:
<?php
header( 'Location: http://mysite.com' ) ;
?>
It says it right in the error...
create app/views/errors/missing_action.ctp
And that's what you should do...
Try using a header in the missing_action.ctp to redirect to where you want the page to go.
You can either customise app/views/errors/missing_action.ctp or you can turn off debugging in app/config/core.php