I'm trying to create my first component in Joomla but I can't understand how it works really :D
I create a basic component with "Component Creator". (I saved a lot of time...).
Now, I have a table in my DB where I've put my data:
id = 1
name = Andrea
note = Ciao
Now, I want to call it from the page using Joomla Language.
On my models/component.php i wrote:
class Variabili extends JModelLegacy
{
function estraivariabili()
{
$db =& JFactory::getDBO();
$db->setQuery("SELECT * FROM #__table")->loadObjectList();
return $value;
}
}
and on my default.php I wrote
$model=$this->Variabili();
//call the method
$items=$model->estraivariabili();
//print
print_r($items);
But on the page I have this error:
0 Call to undefined method Calcolo_imposteViewCalcoloonline::Variabili()
Where is a mistake?
Please be gentle with me because I'm a beginner: D
Thanks in advance
Andrea
You have committed a few wrongs. I've rewritten your functions so that you can get it. Let's have a look-
The model, it looks almost okay. Just change it like-
class Variabili extends JModelLegacy
{
// Make the function public
public function estraivariabili()
{
$db = &JFactory::getDBO();
// Put the result into a variable first, then return it.
$value = $db->setQuery("SELECT * FROM #__table")->loadObjectList();
return $value;
}
}
And now call the model functions not from default.php, rather than write your code inside view.html.php file.
Inside the display function of view.html.php file first, get the model instance by using getModel() function.
$model = $this->getModel();
Now you can get the items by using this $model class instance.
$this->items = $model->estraivariabili();
This will bring you the data from the database table. And you can use the data at default.php file.
Just try at default.php file-
print_r($this->items);
Related
How to upload a file in symfony 4.I have done with the symfony document. I don't know where I have missed something. Its throws error while uploading file give me some clues
REFERED LINK:
https://symfony.com/doc/current/controller/upload_file.html
ERROR:
The file "" does not exist
Entity
public function getBrochure()
{
return $this->brochure;
}
public function setBrochure($brochure)
{
$this->brochure = $brochure;
return $this;
}
File upload Listener
class FileUploader
{
private $targetDirectory;
public function __construct($targetDirectory)
{
$this->targetDirectory = $targetDirectory;
}
public function upload(UploadedFile $file)
{
$fileName = md5(uniqid()).'.'.$file->guessExtension();
$file->move($this->getTargetDirectory(), $fileName);
return $fileName;
}
public function getTargetDirectory()
{
return $this->targetDirectory;
}
}
This Symfony tutorial works fine for me so I'll try to explain how and perhaps it will help you or people still looking for an answer, this post getting a bit old.
So first you have to create the FileUploader service in App\Service for better reusability (chapter: Creating an Uploader Service). You can basically copy/paste what they've done here, it works like a charm. Then you need to open your services.yaml in Config folder and explicit your brochure directory:
parameters:
brochures_directory: '%kernel.project_dir%/public/uploads/brochures'
# ...
services:
# ...
App\Service\FileUploader:
arguments:
$targetDirectory: '%brochures_directory%'
Now everything is normally ready to use your FileUploader service.
So if you're in your controller (for example), I guess you want to use it in a form. Thus, you just have to do this (don't forget to use your Service in your Controller):
public function myController(FileUploader $fileUploader)
{
// Create your form and handle it
if ($form isValid() && &form isSubmitted()) {
$file = $myEntity->getBrochure();
$fileName = $this->fileUploader->upload($file);
$myEntity->setBrochure($fileName);
// Form validation and redirection
}
// Render your template
}
One important point I forgot to say. In your FormType, you need to say that the Brochure will be a FileType:
$builder->add('brochure', FileType::class)
But in your entity you have to specify your brochure is stored as a "string":
/**
* #MongoDB\Field(type="string")
*/
protected $brochure;
The reason is your file is getting uploaded and saved in your public/uploads/brochure. But your database is only remembering a string path to reach it.
I hope this will help!
I am new to Zend and very keen to learn, so I would really appreciate some help and guidance.
I am trying to create a 'method in a class' that will save the session variables of product pages visited by members to a site i.e
i,e examplesite com/product/?producttype= 6
I want to save the number 6 in a session variable. I also do not want to have a global session for the entire site; I just want it for selected pages. So, I guess I have to have Zend_Session::start() on the selected page; but I am not clear how this should be done.
Should I instantiate it in the page view page. i.e products page or do this in the indexAction() method for the products page. I have attempted to instantiate it below but it did not work.
public function rememberLastProductSearched()
{ //my attempt to start a session start for this particular page.
Zend_Session::start();
}
$session->productSearchCategory = $this->_request->getParam('product-search-category');
return" $session->productSearchCategory ";
}
else
{
//echo " nothing there
return " $session->productSearchCategory";
//";
}
}
With the rememberLastProductSearched() method I was trying to get the method to first check whether the user had searched for a new product or just arrived at the page by default. i.e whether he had used the get() action to search for a new product. If the answer is no, then I wanted the system to check whether their had been a previous saved session variable. so in procedural syntax it would have gone like this:
if(isset($_Get['producttype']))
{
//$dbc database connection
$producttype = mysqli_real_escape_string($dbc,trim($_GET['producttype']));
}
else
if(isset($_SESSION['producttype'])){
$producttype = mysqli_real_escape_string($dbc,trim($_SESSION['producttype']));
}
Can you please help me with the Zend/oop syntax. I am totally confused how it should be?
you're asking about simple work flow in an action, it should begin something like:
//in any controller
public function anyAction()
{
//open seesion, start will be called if needed
$session = new Zend_Session_Namespace('products');
//get value
$productCategory = $this->getRequest()->getParam('producttype');
//save value to namespace
$session->productType = $productCategory;
//...
}
now to move this off to a separate method you have to pass the data to the method...
protected function rememberLastProductSearched($productType)
{
//open seesion, start will be called if needed
$session = new Zend_Session_Namespace('products');
$session->productType = $productType;
}
So now if you want to test for presence of a value...
//in any controller
public function anyAction()
{
//open seesion, call the namespace whenever you need to access it
$session = new Zend_Session_Namespace('products');
if (!isset($session->productType)) {
$productCategory = $this->getRequest()->getParam('producttype');
//save value to session
$this->rememberLastProductSearched($productCategory)
} else {
$productCategory = $session->productType;
}
}
That's the idea.
Be mindful of your work flow as it can sometimes be very simple to inadvertently overwrite your session values.
$session = new Zend_Session_Namespace("productSearch");
if ($this->getRequest()->getParam('producttype')) { //isset GET param ?
$session->productType = $this->getRequest()->getParam('producttype');
$searchedProductType = $session->productType;
} else { //take the session saved value
if ($session->productType) {
$searchedProductType = $session->productType;
}
}
//now use $searchedProductType for your query
I need to display product favorite count and some other functionalites in product detail page (product.tpl page).
But i am new to prestashop.so i am unable to find the where i declared function and i dont how to call the function form tpl file.
Here i write product favorite count code
public function favcount($id_product)
{
$sql = 'SELECT count(*) FROM `ps_favorite_product` WHERE `id_product`='.(int)$id_product.;
$result = Db::getInstance()->getRow($sql);
return $result['count'];
}
in which place i can insert the above code and how to call from product.tpl file
any one help ?
The best way is to do it in the ProductController. First you need to override it. For this create (or use the existant) /override/controllers/front/ProductController.php. You can use your function in the initContent() method:
/**
* #see ProductController::initContent()
*/
public function initContent() {
parent::initContent();
// you can place your favcount method inside the class and use it
$favCount = $this->favcount($this->product->id);
// then assign the variable to the template
$this->context->smarty->assign('favcount', $favCount);
}
Then in your template you can call the variable with: {$favcount}.
I have a table which has only two column key-value. I want to create a form which allow user insert 3 pair of key-value settings.
Do I need pass 3 different models to the view? Or is there any possible way to do this?
Check out this link:
http://www.yiiframework.com/doc/guide/1.1/en/form.table
This is considered best form in Yii for updating for creating multiple models.
In essence, for creation you can create a for loop generate as many inputs a you wish to have visible, and in your controller loop over the inputs to create new models.
View File:
for ( $settings as $i=>$setting ) //Settings would be an array of Models (new or otherwise)
{
echo CHtml::activeLabelEx($setting, "[$i]key");
echo CHtml::activeLabelEx($setting, "[$i]key");
echo CHtml::error($setting, "[$i]key");
echo CHtml::activeTextField($setting, "[$i]value");
echo CHtml::activeTextField($setting, "[$i]value");
echo CHtml::error($setting, "[$i]value");
}
Controller actionCreate:
$settings = array(new Setting, new Setting, new Setting);
if ( isset( $_POST['Settings'] ) )
foreach ( $settings as $i=>$setting )
if ( isset( $_POST['Setttings'][$i] ) )
{
$setting->attributes = $_POST['Settings'][$i];
$setting->save();
}
//Render View
To update existing models you can use the same method but instead of creating new models you can load models based on the keys in the $_POST['Settings'] array.
To answer your question about passing 3 models to the view, it can be done without passing them, but to validate data and have the correct error messages sent to the view you should pass the three models placed in the array to the view in the array.
Note: The example above should work as is, but does not provide any verification that the models are valid or that they saved correctly
I'm going to give you a heads up and let you know you could potentially make your life very complicated with this.
I'm currently using an EAV patterned table similar to this key-value and here's a list of things you may find difficult or impossible:
use CDbCriteria mergeWith() to filter related elements on "value"s in the event of a search() (or other)
Filtering CGridView or CListView
If this is just very straight forward key-value with no related entity aspect ( which I'm guessing it is since it looks like settings) then one way of doing it would be:
create a normal "Setting" CActiveRecord for your settings table (you will use this to save entries to your settings table)
create a Form model by extending CFormModel and use this as the $model in your form.
Add a save() method to your Form model that would individually insert key-value pairs using the "Setting" model. Preferably using a transaction incase a key-value pair doesn't pass Settings->validate() (if applicable)
optionally you may want to override the Form model's getAttributes() to return db data in the event of a user wanting to edit an entry.
I hope that was clear enough.
Let me give you some basic code setup. Please note that I have not tested this. It should give you a rough idea though.:
Setting Model:
class Setting extends CActiveRecord
{
public function tableName()
{
return 'settings';
}
}
SettingsForm Model:
class SettingsForm extends CFormModel
{
/**
* Load attributes from DB
*/
public function loadAttributes()
{
$settings = Setting::model()->findAll();
$this->setAttributes(CHtml::listData($settings,'key','value'));
}
/*
* Save to database
*/
public function save()
{
foreach($this->attributes as $key => $value)
{
$setting = Setting::model()->find(array('condition'=>'key = :key',
'params'=>array(':key'=>$key)));
if($setting==null)
{
$setting = new Setting;
$setting->key = $key;
}
$setting->value = $value;
if(!$setting->save(false))
return false;
}
return true;
}
}
Controller:
public function actionSettingsForm()
{
$model = new Setting;
$model->loadAttributes();
if(isset($_POST['SettingsForm']))
{
$model->attributes = $_POST['SettingsForm'];
if($model->validate() && $model->save())
{
//success code here, with redirect etc..
}
}
$this->render('form',array('model'=>$model));
}
form view :
$form=$this->beginWidget('CActiveForm', array(
'id'=>'SettingsForm'));
//all your form element here + submit
//(you could loop on model attributes but lets set it up static for now)
//ex:
echo $form->textField($model,'fieldName'); //fieldName = db key
$this->endWidget($form);
If you want further clarification on a point (code etc.) let me know.
PS: for posterity, if other people are wondering about this and EAV they can check the EAV behavior extention or choose a more appropriate DB system such as MongoDb (there are a few extentions out there) or HyperDex
I have a console command to do a consumer time, AND I need to know how to call (execute) it in a web application action in YII.
class MyCommand extends CConsoleCommand{
public function actionIndex(){
$model = new Product();
$model->title = 'my product';
...
$model->save();
.
.
.
}
}
I want to execute this code.
try this:
Yii::import('application.commands.*');
$command = new MyCommand("test", "test");
$command->run(null);
The 2 parameters with value "test" must be set but do not have an impact, they are used for the --help option when using the console.
/**
* Constructor.
* #param string $name name of the command
* #param CConsoleCommandRunner $runner the command runner
*/
public function __construct($name,$runner)
{
$this->_name=$name;
$this->_runner=$runner;
$this->attachBehaviors($this->behaviors());
}
https://github.com/yiisoft/yii/blob/master/framework/console/CConsoleCommand.php#L65
Try this
Yii::import('application.commands.*');
$command = new GearmanCommand('start', Yii::app()->commandRunner);
$command->run(array('start', '--daemonize', '--initd'));
where array('start', '--daemonize', '--initd') is a action and action parameters
I had same problem - i need to call action from inside controller and from command
I said same problem because it actually same - you have action which you need to call from console, and call it from controller too.
If you need to call an action(command) as a part of controller action, then i think you need to modify this solution a little. Or is my solution is enough for you?
So here is my solution:
first create action as said in http://www.yiichina.net/doc/guide/1.1/en/basics.controller#action
class NotifyUnsharedItemsAction extends CAction
{
public function run()
{
echo "ok";
}
}
then in controller action is loaded as usuall:
class TestController extends Controller
{
public function actions() {
return array(
'notifyUnsharedItems'=>'application.controllers.actions.NotifyUnsharedItemsAction',
);
}
and in command i run action in such way:
class NotifyUnsharedItemsCommand extends CConsoleCommand
{
public function run($args)
{
$action = Yii::createComponent('application.controllers.actions.NotifyUnsharedItemsAction',$this,'notify');
$action->run();
}
}
Accepting that we are on linux server, for Yii 1.1 real life example would be:
$run = '/usr/bin/php ' . Yii::getPathOfAlias('root').'/yiic' [command]
exec(sprintf("%s > %s 2>&1 & echo $! >> %s", $run, '/dev/null', '/dev/null'));
This will run Yii console command in the background.
Yii is PHP -> you can use the standard php constructs specified at http://php.net/manual/en/function.exec.php and the related methods near the bottom of the page, depending on what exactly you want to achieve.
Also, another very clean solution from cebe on gist:
<?php
// ...
$runner=new CConsoleCommandRunner();
$runner->commands=array(
'commandName' => array(
'class' => 'application.commands.myCommand',
),
);
ob_start();
$runner->run(array(
'yiic',
'idbrights',
));
echo nl2br(htmlentities(ob_get_clean(), null, Yii::app()->charset));
Yii::app()->end();
Typically what you should do in these situations is refactor.
Move the "common" code out of the MyCommand and place it into a class located in the components folder.
Now you can place any head on top of the "common" code without altering your functionality. For example:
protected/components/Mywork.php:
<?php
class Mywork
{
public function doWork()
{
$model = new Product();
$model->title = 'my product';
...
$model->save();
...
}
}
protected/controller/MyworkController.php:
<?php
class MyworkController
{
public function actionDowork()
{
$mywork = new Mywork;
...
}
}
protected/commands/MyworkCommand.php:
<?php
class MyworkCommand extends CConsoleCommand
{
public function run($args)
{
$mywork = new Mywork;
...
}
}
This approach makes testing easier too as you can test Mywork as a single unit outside of the view you are using.