Laravel: Validation unique on update

Question

I know this question has been asked many times before but no one explains how to get the id when you're validating in the model.

'email' => 'unique:users,email_address,10' 

My validation rule is in the model so how do I pass the ID of the record to the validation rule.

Here is my models/User

protected $rules_update = [     'email_address' => 'required|email|unique:users,email_address,'.$id,     'first_name' => "required",     'last_name' => "required",     'password' => "required|min:6|same:password_confirm",     'password_confirm' => "required:min:6|same:password",     'password_current' => "required:min:6" ]; 

models/BaseModel

    protected $rules = array();  public $errors;  /*     * @data: array, Data to be validated     * @rules: string, rule name in model  */  public function validate($data, $rules = "rules") {      $validation  = Validator::make($data, $this->$rules);      if($validation->passes()) {         return true;     }      $this->errors = $validation->messages();      return false; } 

Answer 1

Just a side note, most answers to this question talk about email_address while in Laravel's inbuilt auth system, the email field name is just email. Here is an example how you can validate a unique field, i.e. an email on the update:

In a Form Request, you do like this:

public function rules() {   return [       'email' => 'required|email|unique:users,email,'.$this->user->id,   ]; } 

Or if you are validating your data in a controller directly:

public function update(Request $request, User $user) {   $request->validate([       'email' => 'required|email|unique:users,email,'.$user->id,   ]); } 

Update: If you are updating the signed in user and aren't injecting the User model into your route, you may encounter undefined property when accessing id on $this->user. In that case, use:

public function rules()     {       return [           'email' => 'required|email|unique:users,email,'.$this->user()->id,       ];     } 

A more elegant way since Laravel 5.7 is:

public function rules() {     return [         'email' => ['required', 'email', \Illuminate\Validation\Rule::unique('users')->ignore($this->user()->id)]     ]; } 

P.S: I have added some other rules, i.e. required and email, in order to make this example clear for newbies.

Answer 2

One simple solution.

In your Model

protected $rules = [     'email_address' => 'sometimes|required|email|unique:users',     .. ]; 

In your Controller, action:update

... $rules = User::$rules; $rules['email_address'] = $rules['email_address'] . ',id,' . $id; $validationCertificate  = Validator::make($input, $rules);