laravel 4.1更新失败的唯一验证

Question

Laravel 4.1. I want to update a city, check the rules and it fails on unique check.

Rules:

public static $rules = [
    'name' => 'required|alpha_dash|unique:cities',
    'slug' => 'alpha_dash|unique:cities',
    'seo_title' => 'required|max:60|unique:cities',
    'seo_description' => 'required|max:160|unique:cities',
    'rank' => 'integer',
    'visible' => 'integer'
];

I know, I can smth like:

'name' => 'required|alpha_dash|unique:cities, name, ##',

where ## - id, but I cant dynamically set id to updated one.

'name' => "required|alpha_dash|unique:cities, name, $id", // doesnt work
'name' => "required|alpha_dash|unique:cities, name, $this->id", // doesnt work

Is there any way to do it normally ?

Answer 1

You can do it in separate ways.

An easy way is to use different rules based on different actions . When you will create the model, you will use the rules that you currently have.

When you will update the model, you will change the unique:cities to exists:cities

I usually do this with a validation service.

You create a base abstract Validator in services/ , which has a passes() function.

For each model, you create a ModelValidator , in your case CityValidator. Where you put your rules like :

public static $rules = [
    'new'=>[
    'name' => 'required|alpha_dash|unique:cities',
    'slug' => 'alpha_dash|unique:cities',
    'seo_title' => 'required|max:60|unique:cities',
    'seo_description' => 'required|max:160|unique:cities',
    'rank' => 'integer',
    'visible' => 'integer'],

    'edit'=>[
    'name' => 'required|alpha_dash|exists:cities',
    'slug' => 'alpha_dash|unique:cities',
    'seo_title' => 'required|max:60|exists:cities',
    'seo_description' => 'required|max:160|exists:cities',
    'rank' => 'integer',
    'visible' => 'integer'
    ]
];