laravel4 How can i use eloquent in my controller? - laravel-4

Question

I would like to create a relationship between 2 tables with eloquent but i can't find exactly how to proceed...
Here are my 2 models with relationship :
Table "etablissement":
<?php class Etablissement extends Eloquent {
/**
* The database table used by the model.
*
* #var string
*/
protected $table = 'etablissement';
public function annulation()
{
return $this->hasMany('Annulation');
}}
Table "annulation":
<?php class Annulation extends Eloquent {
/**
* The database table used by the model.
*
* #var string
*/
protected $table = 'annulation_remboursement';
public function etablissement ()
{
return $this->belongsTo('Etablissement');
}}
In the "Etablissement" table there is an id for each etablissement (id_etablissement) and in the "annulation" there is a column with the id_etablissement. How can i return in my controller a relation in order to have the etablissement's name with the annulation->id_etablissement :
class AnnulationsController extends \BaseController {
/**
* Display a listing of the resource.
*
* #return Response
*/
public function index()
{
}

Answer 1

It should be something like this within your index method:
$annulation = Annulation::find(1);
$annulation->etablissement->name
The annulation_remboursement table should have a establissement_id field.

Answer 2

Perhaps the error may be in the keys of the relation.
In https://laravel.com/docs/4.2/eloquent#one-to-one we see:
Take note that Eloquent assumes the foreign key of the relationship based on the model name. In this case, Phone model is assumed to use a user_id foreign key. If you wish to override this convention, you may pass a second argument to the hasOne method. Furthermore, you may pass a third argument to the method to specify which local column that should be used for the association:
return $this->hasOne('Phone', 'foreign_key');
return $this->hasOne('Phone', 'foreign_key', 'local_key');
[...] One To Many: Again, you may override the conventional foreign key by passing a second argument to the hasMany method. And, like the hasOne relation, the local column may also be specified:
return $this->hasMany('Comment', 'foreign_key');
return $this->hasMany('Comment', 'foreign_key', 'local_key');
* You should also checkout Defining The Inverse Of A Relation at the same page.
So, in your case you have a key named id_etablissement but Laravel is searching for etablissement_id. If you wish to override this behaviour and specify a key you should do something like:
protected $table = 'etablissement';
public function annulation()
{
return $this->hasMany('Annulation','id_etablissement');
}
and according to "The Inverse Of A Relation"
protected $table = 'annulation_remboursement';
public function etablissement ()
{
return $this->belongsTo('Etablissement','id_etablissement');
}
Note that I didn't put any of the local keys, but those will be the third parameter of the relation.