I am developing a module in prestashop 1.6, i extend AdminController class, every thing is nice.but when i want to display the form that permit to add new instance an error message is displayed :
Fatal error: Undefined class constant 'self::TYPE_STRING' in C:\xampp\htdocs\prestashop\classes\controller\AdminController.php on line 1418
self::TYPE_STRING is a constant from ObjectModel, not AdminController.
I don't know why you'd want use it inside AdminController, but if really need to, change it to : ObjectModel::TYPE_STRING.
Keyword self referes to the current class you're in (in this it is AdminController)
With PHP you can create the missing constant with code like this:
class Test {
private const TYPE_STRING = 'string value';
public function getString() {
return self::TYPE_STRING;
}
}
Related
In the context of a Flutter 2.0.5 app whose state I'd like to manage with Riverpod, I thought I can declare a StateNotifierProvider like this:
import 'package:flutter_riverpod/flutter_riverpod.dart';
final counterProvider = StateNotifierProvider<CounterStateNotifier>((ref) => CounterStateNotifier());
class CounterStateNotifier extends StateNotifier<int> {
CounterStateNotifier([int count = 0]) : super(count);
void increment() => state++;
}
But Android Studio (and later the Dart compiler as well) complains about the line where I declare the counterProvider variable:
The type 'StateNotifierProvider' is declared with 2 type parameters, but 1 type arguments were given.
Removing the <CounterStateNotifier> type parameter in StateNotifierProvider<CounterStateNotifier> removes the error. However, attempting to read the provider and call its increment method (setting () => context.read(counterProvider).increment() as the onPressed of an ElevatedButton, then pressing the button) gives the following runtime error:
'increment'
method not found
Receiver: 0
Arguments: []
Why is context.read(counterProvider) returning the int state instead of the notifier? And what is the reason behind the type parameter error mentioned in the first part of my question?
I should mention that I'm running my app on the web (with flutter run -d Chrome).
As of Riverpod 0.14.0, State is the default value exposed by StateNotifierProvider.
The syntax for declaring your StateNotifierProvider is now as follows:
final counterProvider = StateNotifierProvider<CounterStateNotifier, int>((ref) => CounterStateNotifier());
Accessing functions now requires adding .notifier (accessing the StateNotifier itself):
context.read(counterProvider.notifier).increment();
And like you've noticed, you now access the state like so:
final count = context.read(counterProvider);
More on the changes here.
You may also use dynamic to accept any type if value for the StateNotifierProvider
final modelProvider =
StateNotifierProvider.autoDispose<ModelClassName, dynamic>(
(ref) => ModelClassName());
I want to use a parameterized template construct to access the attributes of a Property object to generate some output in a word document. When I use the template with some basic types (e.g. Integer or String) it works fine but when I've tried to use a Property object, I can only access the "name" attribute but not e.g. the description attribute. Using the unit test recursiveEObject-template as a starting point, my template looks like this:
{ m:template mytest(element : ecore::ENamedElement) }
{ m: element.description }
{ m:endtemplate }
And I get the following error message:
{ m:element. <---Feature description not found in EClass ENamedElement description }
I assume that the type of my parameter is just wrong and I need to change it or cast it to some derived Property child class of ENamedElement but I did not find the correct class. Any suggestions?
Kind regards
Christian
Yes you need to change the type of the parameter element to the type of the object that is holding the description feature. You will also need to import the EPackage containing the EClass.
For instance if I want to use the description of a Capella object:
{ m:template mytest(element : capellacore::CapellaElement) }
{ m: element.description }
{ m:endtemplate }
then import the following nsURI (may change according to the version of Capella):
http://www.polarsys.org/capella/core/core/1.4.0
using the template property wizard
when i want to generate Entity from data base i have this Error:
Unknown database type enum requested, Doctrine\DBAL\Platforms\MySqlPlatform may not support it
how can i resolve this issue.
Thanks in advance
You could try to do something like this in the onBootstrap module of your Module.php, to tell Doctrine to treat your enum like a string
$em = $e->getApplication()->getServiceManager()->get('Doctrine\ORM\EntityManager');
$platform = $em->getConnection()->getDatabasePlatform();
$platform->registerDoctrineTypeMapping('enum', 'string');
Add the following line to your bootstrap.php
$entityManager->getConnection()->getDatabasePlatform()->registerDoctrineTypeMapping('enum', 'string');
If you really want to work with enums and don't convert them to strings, you should implement your custom type (it's really not a big deal).
See enter link description here
But also, you have to extend list of types on your platform.
So, simplest way to do that - override useless method \Doctrine\DBAL\Types\Type::getMappedDatabaseTypes with your own so like that:
class EnumType extends Type
{
const NAME = "enum";
// ... (your implemented methods)
public function getMappedDatabaseTypes(AbstractPlatform $platform)
{
return ['enum'];
}
}
Have a fun :)
I`m from Russia, so sorry for bad English.
I want to load template in every page in controller.
For example (library parser in autoload),
class Blog extends CI_Controller {
$header = array(
'header' => 'Welcome to my blog!'
);
$this->parser->parse('header', $header);
function index() {
...
echo "My text";
}
header.php:
<h1>{header}</h1>
<script>
alert("Welcome!");
</script>
But I get an PHP error:
syntax error, unexpected T_VARIABLE, expecting T_FUNCTION in line 6. Line 6:
$header = array(
How can I load header in every page? Thanks.
config.php:
$autoload['libraries'] = array('parser');
controller blog.php:
<?php
class Blog extends Controller {
function __construct()
{
parent::Controller();
$header = array('header' => 'Welcome to my blog!');
$this->parser->parse('header', $header);
}
function index()
{
echo "Мой текст";
}
}
?>
view header.php:
{header}
it works for me..
try calling the array with $this->header
Maybe it's a typing error but in the code from header.php you have typed {header} where I guess it should be {$header}
When loading class properties, like your $header above, php expects the property's visibility to be declared before the variable name. PHP5 has three visibility options: 'public', 'private', or 'protected'. I think this is why you are getting "unexpected T_VARIABLE". The difference between them are described at swik.net as:
To protect from accessibility pollution, PHP v5 introduces 3 prefixes for declaring class methods or variables: public, protected, and private.
Public methods and variables are accessible outside of the class. Protected are only accessible from inside of the class and inherited or parent classes. Private are only accessible from within the class itself.
try this: (I chose 'public' visibility, you can determine which is appropriate for your use)
public $header = array('header'=>'Welcome to my blog");
Next, I think you should call your parser in a constructor, rather than outside of a class method.
function _construct(){
parent::_construct();
$this->parser->parse('header',$this->header);
}
The constructor will be called every time the class is instantiated, loading your parser library method along with it.
Update:
Your comment suggests that the parser isn't working like you expect. I assume you have placed
$this->parser->parse('header,$this->header);
in the constructor function like I suggested. If that isn't working, create a function with the same name as your class and put the parser in there, that function will load every time the class is called, similar to the constructor, but let's see if that does the trick. I suggest taking the parser library out of auto load until you've resolved your problem, just to simplify things.
function blog(){
$this->load->library('parser');
$this->parser->parse('header',$this->header);
}
I've generated testsuits via "cake bake testsuit" and used localhost/test.php for my app.
So, the is an error when I tried to run one of test (else tests are valid):
Fatal error: Class 'ErrorHandler' not found in Z:\home\prodvigator\www\cake\libs\object.php on line 201
This models and controllers are generated by scaffold and I don't think that an error is in this sources.
Using:
CakePHP 1.3
The latest SimpleTest
In my case, deleting all the files in the folder /app/tmp/cache/persistent solved the problem.
try checking the generated tests for an error that gets written at the top of the file.
sometimes i've been known to find something like this in both model and controller tests.
Warning: date(): It is not safe to rely on the system's timezone settings. You are *required* to use the date.timezone setting or the date_default_timezone_set() function. In case you used any of those methods and you are still getting this warning, you most likely misspelled the timezone identifier. We selected 'America/New_York' for 'EDT/-4.0/DST' instead in /projectname/cake/console/templates/default/classes/test.ctp on line 22
In my case, the error was:
Fatal error: Uncaught Error: Class 'ErrorHandler' not found in C:\[path]\core\cake\libs\object.php on line 211
( ! ) Error: Class 'ErrorHandler' not found in C:\[path]\core\cake\libs\object.php on line 211
The error was happening to me when trying to visit http://localhost/user_accounts/index
I already had the view created at app\views\user_accounts\index.ctp with the following content:
<div>
Text from div
</div>
I had created the corresponding controller as well at app\controllers\user_accounts_controller.php:
<?php
class UserAccountsController extends AppController {
public function index() {
// Render the view in /views/user_accounts/index.ctp
$this->render();
}
}
?>
Since I was not associating a model to this controller, I was missing this: var $uses = array();. It would have saved me time if the error had been more explicit, something such as "You do not have a model associated to this controller".
The fix was:
<?php
class UserAccountsController extends AppController {
// Use this controller without a need for a corresponding Model file.
var $uses = array();
public function index() {
// Render the view in /views/user_accounts/index.ctp
$this->render();
}
}
?>