Using Relationships first time and having issue to understand it.
I have a Student Class and a Course Model Class. A student can take many courses. In Student Model I do this:
public function course()
{
return $this->belongsTo('Course');
}
and in controller when I do this: .$student->course()->course_title it gives an error:
FatalThrowableError in Model.php line 779:
Class 'Course' not found
What am I doing wrong?
replace your code with it
public function course()
{
return $this->belongsTo(Course::class);
}
Make sure your namespace in your Course class matches 'App\Models'. You might be trying to access an "empty" namespace.
Namespaces are declared at the top of your class file. So for example:
Course.php:
namespace App\Models;
use Illuminate\Http\Request;
...
class Course extends Model { ... }
OtherClass.php
namespace App\Models;
use Illuminate\Http\Request;
...
class OtherClass extends Model {
...
public function course()
{
return $this->belongsTo('App\Models\Course')
}
}
Please note that the namespace declared at the top of Course.php matches the path provided to the relationship method (return) belongsTo(). You can also provide Course::class to the belongsTo method, but you need to import aka use the class in your php class.
I hope this helps!
I had the same problem and i solved it by adding a name space in the top of my model
for your case,
use \App\Course ; // Your name space of your class in relation
Hope this help others
NB : I used Laravel 5.0
Related
I have a class called CustomerController with a delete function:
class CustomerController extends Controller
{
public function getAllCustomer()
{
return \App\model\Customer::get();
}
public function destroy (Customer $id)
{
$id->delete();
}
This is the route:
Route::delete('customer/{id}' , 'CustomerController#destroy');
I get this error:
Class App\Http\Controllers\Customer does not exist
I already tried Composer update and Composer dump-autoload with no success.
A screenshot:
Thank you very much!
When you do not include classes using use statements, php will try to find the class in the current namespace.
So, the function function destroy (Customer $id) will look for the class Customer in the App\Http\Controllers namespace. To avoid this, add a use statement for the App\model\Customer class above on top of your controller class. For example:
<?php
namespace App\Http\Controllers;
use App\model\Customer;
class CustomerController extends Controller
{
public function getAllCustomer()
{
return Customer::get();
}
public function destroy (Customer $id)
{
$id->delete();
}
}
Now you can also use a shorter name in the getAllCustomer() function.
Change this :
return \App\model\Customer::get();
to this:
add namespace at the top:
use App\Customer;
return Customer::get();
as you are using route model binding on delete action by injecting Customer class to the method therfore its failing so make sure you add model namespace at the top of the file(CustomerController).
The error is happening beacuse CustomerController is trying to look for Customer model in controllers namespace which means that your model namespace is wrong.
I using Laravel, I have a Model class under App/Models
<?php
namespace App\Models;
class TodoList extends \Eloquent{
public function listItems(){
return $this->hasMany('TodoItem');
}
}
In my Controller I have included the namespace as follows:
namespace App\Http\Controllers;
...
use App\Models\TodoItem;
use App\Models\TodoList;
class TodoListController extends Controller
My method looks like this:
public function show($id)
{
$list=TodoList::findOrFail($id);
return \View::make('todos.show')->with('list', $todo_list);
}
but when I call to a request i get the error:
FatalErrorException in TodoListController.php line 75: Class
'App\Models\TodoList' not found
Trying running composer dump-autoload. Basically your classes become cached so you need to tell Laravel to look for newly added classes.
I'm not sure, just try this :
namespace App\Models;
use Illuminate\Database\Eloquent\Model as Eloquent;
class TodoList extends Eloquent{
public function listItems(){
return $this->hasMany('TodoItem');
}
}
Here is the code from the docs, but for your example. Note the use Model:
namespace App\Models;
use Illuminate\Database\Eloquent\Model;
class TodoList extends Model {
//insert public function listItems() here
}
Hope this is helpful!
Make sure the file is in the correct folder and has the same name caption as the Class you want to import.
If the caption of the file "TodoList" is not TodoList.php but Todolist.php for example, Laravel wont find it.
Depending on your setup running "composer dump" might help to refresh autoload files.
I have created a model using
php artisan make:model Sessions
which creates a model named Sessions in the App\ folder. My Model (Sessions) and the controller(School) calling the model are below
Model (Sessions):
<?php namespace App;
use Illuminate\Database\Eloquent\Model;
class Sessions extends Model {
//
protected $table = "sch_sessions";
protected $primaryKey = "session_id";
}
Controller (School)
<?php
namespace App\Http\Controllers;
use App;
class SchoolController extends Controller {
public function sessionManagement(){
$Sessions = Sessions::all();
}
}
I get the following error
FatalErrorException in SchoolController.php line 7: Class
'App\Http\Controllers\Session' not found
I've tried putting the model in a folder and "use"ing it but nada. I'm stumped as to why the error is referring to a controller in the first place. Can anyone see something I don't (can't) please?
add on the top
use App\Sessions;
or use it with prefix
\App\Sessions::all();
If user Ali Mohammed's answer doesn't clear it up for you, it looks to me like your error is happening elsewhere. App\Http\Controllers\Session note Session is not plural.
Are you attempting to use the Session class elsewhere in your controller? If so, make sure to prefix it so it's using the Session declared in the global namespace. You can do this with \Session.
I'm trying to get the hang of Laravel 5 and have a question which is probably very simple to solve but I'm struggling.
I have a controller named TestController and it resides in \app\Http\Controllers
This is the controller:
<?php
namespace App\Http\Controllers;
class TestController extends Controller {
public function test()
{
$diamonds = diamonds::find(1);
var_dump($diamonds);
}
}
Then I have a model I created that resides in /app:
<?php
namespace App;
class diamonds extends Model {
}
Put all other mistakes aside which I'm sure there are, my problem is that laravel throws an error:
FatalErrorException in TestController.php line 10: Class
'App\Http\Controllers\diamonds' not found
So, how do I get the controller to understand I'm pointing to a model and not to a controller?
Thanks in advance...
You have to import your model in the Controller by using namespaces.
E.g.
use App\Customer;
class DashboardController extends Controller {
public function index() {
$customers = Customer::all();
return view('my/customer/template')->with('customers', $customers);
}
}
In your case, you could use the model directly App\diamonds::find(1); or import it first with use App\diamonds; and use it like you already did.
Further, it is recommended to use UpperCamelCase class names. So Diamonds instead of diamonds. You also could use dd() (dump and die) instead of var_dump to see a nicely formatted dump of your variable.
//Your model file
<?php
namespace App\Models;
class diamonds extends Model {
}
// And in your controller
<?php
namespace App\Http\Controllers;
use App\Models\
class TestController extends Controller {
public function test()
{
$diamonds = diamonds::find(1);
var_dump($diamonds);
}
}
Try adding the following lines above your class decleration in your controller file...
use App\Diamonds;
use App\Http\Requests;
use App\Http\Controllers\Controller;
use Illuminate\Http\Request;
(this assumes your model file is called Diamonds.php)
Ultimately, there were a few issues here and all of you helped, however I was missing the following on the model page:
use Illuminate\Database\Eloquent\Model;
In my app I have Event and User models.Because of Event model I have to put it into namespace .so I created namespace as of following.
Event
<?php namespace App\Models;
class Event extends \Eloquent {
public function user()
{
return $this->belongsTo('User');
}
User
<?php
use Illuminate\Auth\UserTrait;
use Illuminate\Auth\UserInterface;
use Illuminate\Auth\Reminders\RemindableTrait;
use Illuminate\Auth\Reminders\RemindableInterface;
use App\Models\Event;
class User extends Eloquent implements UserInterface, RemindableInterface {
public function events()
{
return $this->hasMany('Event');
}
The relations between User and Event are simple OneToMany. So in my EventController I use POST method to create new event resource .
$e = new Event(array('keys'=>'values')); //without user_id filled
$user->events()->save($e);
At the same time i got an error .
Call to undefined method Illuminate\Support\Facades\Event::newQuery()
If I am not wrong i guess it is namespace error.But namespaces are already declared correctly I guess.
But I try visiting similar questions and used alternative way in relationship and then it worked fine.Personally I don't find it satisfied.Any idea why this is occurred ?
Change the above relation to
public function events()
{
return $this->hasMany('\App\Models\Event');
}
If you put Event inside a namespace you need to use it with it's fully qualified classname.
You can either import it into your controller:
use App\Models\Event;
Or specify the namespace inline:
new App\Models\Event();
Also, I would recommend that if you create a namespace for models that you put all of them in there. (User is missing a namespace in your code)