How to use Sync in ManytoMany and add statut to pivot table - laravel

Question

I have three table and i'm in a many to many relationship.
Table "semaine"
id | name |
Table "bitheme"
id | namebitheme
Table "bitheme_semaine". In it i add a new "statut" columns
bitheme_id | semaine_id | statut
In my case I can have a status of 1 or 2 if the relationship exists (in database it"s 1 by defaut on this field).
In my edit form i have to checkbox :
<input type="checkbox" name="bithemes[]" value="{{ $id }}"> </input>
<input type="checkbox" name="statut[]" value="{{ $id }}"> </input>
I synchronize my table as well :
$semaine->update($request->all());
$semaine->bithemes()->sync($request->input('bithemes', []));
But i also want to synchronize the status if it is checked.
So I added in the relationship of my Semaine model :
public function bithemes()
{
return $this->belongsToMany(Bitheme::class)->withPivot('statut');
}
and i try to test synchronize with :
$semaine->bithemes()->sync($request->input('bithemes', []), ['statut' => 2]);
But the statut is never synchronized.

Answer 1

The sync method takes as first parameter an array of IDs as in your example. But when you want to sync the attributes of the pivot table, give it an array with the IDs as numeric index of that array and an array as value of each index for the pivot attributes.
$syncable = [];
foreach($request->input('bithemes', []) as $bithemeId) {
$syncable[$bithemeId] = ['status' => 2];
}
$semaine->bithemes()->sync($syncable);
For precision, the format you used is to sync only one ID
if (isset($request->input('bithemes')[0])) {
$semaine->bithemes()->sync($request->input('bithemes')[0], ['statut' => 2]);
}

Answer 2

Perfect.
I changed my form with :
<input type="checkbox" name="bithemes[]" value="{{ $id }}" {{ (in_array($id, old('bithemes', [])) || isset($semaine) && $semaine->bithemes->contains($id)) ? 'checked' : '' }}> </input>
<input type="checkbox" name="statut[]" value="{{ $id }}"> </input>
and my controller with :
$syncable = [];
foreach($request->input('bithemes', []) as $key => $value) {
if (!isset ($request->input('statut')[$key])) {$statut = 1;} else {$statut = 2;}
$syncable[$value] = ['statut' => $statut];
}
$semaine->bithemes()->sync($syncable);
and everything si fine now. Thanks