Creating custom variables/attributes in Laravel Model

Question

I am trying to create a custom attribute inside of a Laravel Model. This attribute would be the same for all of the Model instances (static?). The goal is to use this attribute to populate a select dropdown when creating a Model instance. Example:

class User extends Model
{
    protected $table = 'users';
    protected $guarded = [ 'id' ];
    public $timestamps = true;

    protected $genders = ['male'=>'Male', 'female'=>'Female'];  //custom

    public static function getGenderOptions() {
        return $genders;
    }
}

Then when building out the form, I could do something like:

// UserController.php
$data['select_options'] = User::getGenderOptions();
return view('user.create', $data);

// create.blade.php
{!! Form::select( 'gender', $select_options ) !!}

This causes me to get the error:

Undefined variable: genders

I am trying to prevent cluttering my Controller with all of the select options, as there are also a few others I haven't included.

Thanks.

Giedrius Kiršys · Accepted Answer · 2016-05-13 17:45:30Z

6

Modify Your protected $genders element and make it public+static. So then You can access it directly like so: User::$genders.

But...my personal decision would be to move constants to config file or some kind of helper.

answered May 13, 2016 at 17:45

Giedrius Kiršys

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1 Comment

Stetzon Over a year ago

Thanks, this worked. Right now these options are only being used for the Users, but if they start being used elsewhere, then I would plan to move them to some sort of config.

Alex Anry · Accepted Answer · 2016-05-13 18:18:45Z

0

I guess it should be

public function getGenderOptions() {
    return $this->genders;
}

Or simply declare $genders as a static variable and use return self::$genders

Check the docs - Variable scope and Static Keyword

edited May 13, 2016 at 18:18

answered May 13, 2016 at 18:06

Alex Anry

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3 Comments

Alex Anry Over a year ago

Also Visibility and Scope resolution docs might be helpful: docs.php.net/language.oop5.visibility docs.php.net/language.oop5.paamayim-nekudotayim

Stetzon Over a year ago

don't think $this->genders would work inside the model, as it has to be in the object instance, correct? But I did end up using self::$genders, after declaring $genders as public static, as suggested by @Giedrius Kiršys

Alex Anry Over a year ago

Well, with $this->genders it can be used as $data['select_options'] = (new User())->getGenderOptions(); but if you want to use it statically, then yes, you should declare $genders as static. Btw, if you are going to extend your class User and change $genders value in a new class, then you should use static instead of self: return static::$gender

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