Laravel Eloquent: Return Array key as the fields ID
You can simply do
Model::all()->keyBy('category_id');
Cheers :)
Since you have an Eloquent Collection (a child class of the generic Collection
class) you can use the getDictionary
method. $collection->getDictionary()
will give you an array of your Category objects keyed by their primary keys.
If you wanted another Collection rather than a native PHP array, you could instead use $collection->keyBy($property)
. It looks like your primary key is category_id
, so $collection->keyBy('category_id')
. You can use that method to key by any arbitrary property, including any get mutators you may have written.
While getDictionary
is unique to the Eloquent Collection
extension, keyBy
is available to all Laravel Collection
objects. See the Laravel 4.2 API docs or Laravel 5.0 API docs.
You have a Support\Collection
/Database\Eloquent\Collection
you can use the method lists('id')
to return an array of the id of each of the models within the collection.
Then use array_combine
to map the keys to the models. The result of which will be an array with the id mapped to their corresponding model.
If you need id as the key, then rely on the Collection:
$collection = Model::all();
$collection->getDictionary();
// returns:
array(
1 => object(Model) ( ... ),
2 => object(Model) ( ... ),
...
idN => object(Model) ( ... )
);
Otherwise, nice or not, you can do this:
$keys = $collection->lists('columnName');
$arrayOfModels = array_combine($keys, $collection->getDictionary);