i am using cake php 3. Some days ago I have updated php version from 5.6 to 7.1.17 . Now if there is any error happen in my apps it show An Internal Server Error Occurred". I can see error log in my error.log file like this [Error] Call to a member function user() on boolean
Request URL: /robots.txt
Here is how my user() function called. It was working fine with php 5.6..
public function beforeRender(Event $event)
{
if($this->Auth->user()){
$this->set('loggedIn', true);
}
else{
$this->set('loggedIn',false);
}
}
This is how I solved the problem. Added this line $this->loadComponent('Auth'); in the beforeRender function. I got this solution from
Fatal error: Call to a member function user() on boolean
Related
In my controller, I extend the Controller class instead of ActiveController
I have a simple actionIndex() method:
public function actionIndex(){
return json_encode(["text" => "some text"]);
}
When I access the certain route in browser, in the debugger, I see that this function is executing (the breakpoint stops inside the function), but I get 500 status code (Internal server error). How can I find the cause of the error? I have implemented the actionError() method, but it is not executing.
public function actionError() {
$exception = Yii::$app->errorHandler->exception;
if ($exception !== null) {
return $this->render('error', ['exception' => $exception]);
}
}
If I put the logic of the actionError() method in the actionIndex(), the $exception variable is null
The only output I get is:
{
name: "PHP Warning",
message: "Expected array for frame 0",
code: 2,
type: "yii\base\ErrorException",
file: "Unknown",
line: 0,
stack-trace: []
}
but it's warning, not error. May this cause the status code 500?
How can I get the error? Thanks!
According to this thread https://github.com/yiisoft/yii2/issues/11120 this is related to Xdebug for Yii 2 < 2.0.9.
When handling an exception, XDebug modifies the exception and Yii2 was not able to handle it correctly.
So several possible solutions here
The best idea is to update Yii2 to a version >= 2.0.9
Also you sould correct the source of the exception (the warning). It is never a good idea to have warnings. It can hide some more issues.
And as a workaround, you can disable XDebug. It is very useful during development but must be disabled in production in all cases.
Don't know about your error, but there is generally no need to return a response as json encoded. Yii checks the Accept-header of the request and adjust output accordingly. In your case I would just use:
public function actionIndex()
{
return ["text" => "some text"];
}
Possibly it might also solve your error...
I have a simplest WinRt c++/cx template project in Visual Studio in which i modified only three lines in MainPage constructor and added simple event handler like this:
MainPage::MainPage()
{
InitializeComponent();
auto listener = ref new Windows::Networking::Sockets::StreamSocketListener;
listener->ConnectionReceived += ref new Windows::Foundation::TypedEventHandler<Windows::Networking::Sockets::StreamSocketListener ^, Windows::Networking::Sockets::StreamSocketListenerConnectionReceivedEventArgs ^>(this, &App3::MainPage::OnConnectionReceived);
Concurrency::create_task(listener->BindEndpointAsync(ref new Windows::Networking::HostName("127.0.0.1"), "6667")).get();
}
void MainPage::OnConnectionReceived(Windows::Networking::Sockets::StreamSocketListener ^sender, Windows::Networking::Sockets::StreamSocketListenerConnectionReceivedEventArgs ^args)
{
throw ref new Platform::NotImplementedException();
}
After running this project i'm getting debugger error like this:
Unhandled exception at 0x0F983C68 (msvcr120d_app.dll) in XXX.exe: An invalid parameter was passed to a function that considers invalid parameters fatal.
This project has enabled "Internet (Client and Server)" and "Private Networks" capabilities.
So my question is: why i'm getting this error? It's a WinRt bug?
How to stop exception from showing in zend framework 2 and instead when exception is thrown i want to redirect to 404 page .
Actually when user fires wrong url or some how any query gets executed in a wrong way exception is thrown , so i need to block this exception and instead redirect to any other well designed page . I'm unable to track the the exception point or rather catch the exception or from where exception is generated . I have used this code
You can handle the exceptions in anyway you want after catching it as the following example in which you are catching the exception globally...:
In the onBootstrap method i have attached the following code in Module.php in a function to execute when an event occurs, the following attach a function to be executed when an error (exception) is raised:
public function onBootstrap(MvcEvent $e)
{
$application = $e->getApplication();
$em = $application->getEventManager();
//handle the dispatch error (exception)
$em->attach(\Zend\Mvc\MvcEvent::EVENT_DISPATCH_ERROR, array($this,
'handleError'));
//handle the view render error (exception)
$em->attach(\Zend\Mvc\MvcEvent::EVENT_RENDER_ERROR, array($this,
'handleError'));
}
and then defineed in module.php only the function to handle the error
public function handleError(MvcEvent $e)
{
//get the exception
$exception = $e->getParam('exception');
//...handle the exception... maybe log it and redirect to another page,
//or send an email that an exception occurred...
}
I found this code from stackoverflow only , but it is not working , i mean when i'm passing wrong parameters in url , it is showing " A 404 error occurred
Page not found.
The requested controller was unable to dispatch the request.
Controller:
Front\Controller\Front
No Exception available "
Please i need help on this.
you can turn off exceptions in zf2 by chaining 'display_exceptions' => TRUE to 'display_exceptions' => false, [module/Application/config/module.config.php]
I get so annoyed when I transfer websites from one machine to another and I get a bunch of errors, such as this case. But this one made it to my curiosity and this is why I'm asking a question. I have the following code:
namsepace MF;
class Box {
private static $dumpYard = array();
public static function get($name) {
return self::$dumpYard[$name];
}
public static function set($name, $value, $overwrite=false) {
if($overwrite || !isset(self::$dumpYard[$name])){
self::$dumpYard[$name] = $value;
}else{
if(DEBUG_MODE){
echo('Value for "'.$name.'" already set in box, can\'t overwrite');
}
}
}
}
So when my application gets to the following line on my LOCAL testing server:
if(!empty(\MF\Box::get('requestsSpam'))){
throw new \Exception('Please don\'t spam');
}
I get a Fatal error: Can't use function return value in write context. However this code does not throw an error on the actual hosting server of my website. How come is that?
empty() works only with a variable. It should be:
$result = \MF\Box::get('requestsSpam');
if(!empty($result)){
throw new \Exception('Please don\'t spam');
}
Why? empty() is a language construct and not a function. It will work only with declared variables, that's just how it is designed, no magic.
I have an issue which I could not find answer for across the web.
I am using CodeFirst EF 4.3.1 Migrations with MySQL.
My MySQL provider is Devart.
After running Add-Migration against an existing database, I got the following code:
public partial class ChangeSet_1231 : DbMigration
{
public override void Up()
{
RenameColumn(table: "RW_TTaskInstanceProperties", name: "TaskInstance_TaskInstanceId", newName: "TaskInstanceId");
}
public override void Down()
{
RenameColumn(table: "RW_TTaskInstanceProperties", name: "TaskInstanceId", newName: "TaskInstance_TaskInstanceId");
}
}
Running Update-Database results in the following error:
PM> Update-Database -verbose –startupprojectname "RTDataAccess"
Using NuGet project 'RTDataAccess'.
Target database is: 'rsruntime' (DataSource: localhost, Provider: Devart.Data.MySql, Origin: Explicit).
Applying explicit migrations: [201205311312361_ChangeSet_1231].
Applying explicit migration: 201205311312361_ChangeSet_1231.
ALTER TABLE RW_TTaskInstanceProperties RENAME COLUMN TaskInstance_TaskInstanceId TO TaskInstanceId
You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near 'COLUMN TaskInstance_TaskInstanceId TO TaskInstanceId' at line 2
From looking at the error details I see that the RenameColumn is translated to a MsSql command, rather than MySql command, so no wonder it reports about a syntax error.
Any ideas how to solve it?
I know I can use Update-Database -script, then edit the script to fit MySql and run it, but I prefer to make the Update-Database command work...
Thanks.
In response to Ladislav's question:
Yes, I registered the Devart's SQL generator for MySQL Migrations.
My Configuration class looks like that:
using Devart.Data.MySql.Entity.Configuration;
using Devart.Data.MySql.Entity.Migrations;
internal sealed class Configuration : DbMigrationsConfiguration<RTDataAccess.RTContext>
{
public Configuration()
{
AutomaticMigrationsEnabled = false;
MySqlEntityProviderConfig.Instance.Workarounds.IgnoreSchemaName = true;
var connectionInfo = MySqlConnectionInfo.CreateConnection("Server=xxxx;Port=yyyy;Database=rsruntime;Uid=zzzz;Pwd=wwww;charset=utf8;");
this.TargetDatabase = connectionInfo;
this.SetSqlGenerator(connectionInfo.GetInvariantName(), new MySqlEntityMigrationSqlGenerator());
}
protected override void Seed(RTDataAccess.RTContext context)
{
}
}
The issue was fixed by Devart.
Details at the following links:
http://forums.devart.com/viewtopic.php?f=2&t=24250
http://www.devart.com/dotconnect/mysql/download.html