form validation laravel 5 - php

Question

on my profile update form i have fullname password and confirm password fields . currently my validations are works only for
empty fields and password mismatch. but how can i add password charactor limits validations as well ?
password should be min:5 and max 15 charactors.
please advice.
public function changePasswordPost()
{
$user = Auth::user();
if (Input::get('password')) {
if (Input::get('password') !== Input::get('confirm_password')) {
return Redirect::route('admin-change-password')->with('error', 'Password field is not identical to Confirm Password.');
}
$user->update();
return Redirect::route('admin-change-password')->with('success', 'You have successfully updated login details.');
}
return Redirect::route('admin-change-password')->with('error', 'Input Missing');
}

Answer 1

You need to do something like this:
use Validator;
public function changePasswordPost(Request $request)
{
$user = Auth::user();
if ($request->get('password')) {
if (($request->get('password') !== $request->get('confirm_password')) ||
(Validator::make($request->all(), ['password' => 'min:5|max:15'])->fails())) {
return redicrect()->route('admin-change-password')->with('error', 'Password field is not identical to Confirm Password.');
}
$user->update();
return redirect()->route('admin-change-password')->with('success', 'You have successfully updated login details.');
}
return redirect()->route('admin-change-password')->with('error', 'Input Missing');
}
I haven't tested this code but the point is that you need to use Validator class from laravel. Note that I have changed some of the stuff to use laravel-5.1 friendly API.
Note that you can get cleaner code by adding Validation before you do anything. Something like this:
public function changePasswordPost(Request $request)
{
/**
* This basically captures your password matching
* and password length cases in a compact way so
* you don't need all the if statements.
*/
$validation = Validator::make($request->all(),
['password' => 'required|min:5|max:15',
'confirm_password' => 'required|same:password']);
if ($validation->fails())
{
response()->redirect('admin-change-password')->with('error', 'bad input');
}
/**
* Here you do the rest of the processing like updating the database.
*/
}