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Laravel belongsToMany not working


Laravel belongsToMany not working

By : Nano wang
Date : November 22 2020, 03:01 PM
Hope this helps So further downstream I was calling the forms() method dynamically. It turns out I needed to call a ->get() on it as well since it apparently forms() returns a query builder instance rather than a model result. For any future people interested, this is what my working code looks like:
code :
$record = $model::find($id);
$include = $request->input("include");
$result_array = $record->toArray();

if ($include) {
    $includes = json_decode($include);

    foreach ($includes as $child_model) {
        $child = $record->$child_model();
        $result_array[$child_model] = $child->get(); //where $child == 'forms'
    }
}

return $record_array;


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Laravel 5 `belongsToMany` with `wherePivot` eloquent query is not working properly

Laravel 5 `belongsToMany` with `wherePivot` eloquent query is not working properly


By : Azharj
Date : March 29 2020, 07:55 AM
Hope this helps The wherePivot method on the relationship is just a shortcut for the where method, but it takes care of adding on the pivot table qualifier for the constraints. Because of this, it doesn't support closures, which is what you need to use in order to group your constraints. Therefore, you will need to call the where method directly, and manually add in the table name qualifier to your where conditions.
Something like:
code :
public function courses() {
    return $this->belongsToMany('App\Models\Course')
        // pass a closure to group your constraints
        ->where(function ($query) {
            return $query->where('course_user.relation_type', 1)
                ->orWhere('course_user.relation_type', 0);
        })
        ->withPivot('relation_type', 'created_at', 'updated_at');
}
Laravel belongsToMany only works one way

Laravel belongsToMany only works one way


By : Bruno Lopes
Date : March 29 2020, 07:55 AM
this one helps. I'm trying to make a many to many relation, in this example with user and role. , Solved : Laravel 5.2.29
make sure the table name is role_user
code :
    $user = User::find(1);
    $role = Role::find(2);
    // In this example I am passing in a Role object but $role->id also works
    $user->roles()->attach($role);
Laravel BelongsToMany Yielding Nothing

Laravel BelongsToMany Yielding Nothing


By : Heidi
Date : March 29 2020, 07:55 AM
I hope this helps . $user->section() will return the BelongsToMany relationship instead of the model object itself. You can do $user->section instead to load the relationship and have the model returned.
Laravel delete all belongsToMany relations in belongsToMany relation

Laravel delete all belongsToMany relations in belongsToMany relation


By : Bhanavi Shukla
Date : March 29 2020, 07:55 AM
wish helps you Using RDBMS Referential Actions on the Foreign Key
In the database schema, you should define the foreign key with the ON DELETE CASCADE action. This will automatically delete the related records when the referenced id is deleted.
code :
$tourament->sessions()->sync([]);
Laravel detach not working on belongsToMany

Laravel detach not working on belongsToMany


By : user3358041
Date : March 29 2020, 07:55 AM
this one helps. Filter the relationship query down to just the call list with matching ID and then call detach().
Try:
code :
$company->call_lists()->where('id', $call_list->id)->detach();
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