Is it possible to check in laravel, if only a specific field is filled in a request?
Like this: if($request->filledOnly('email)){}
If possible how to do that?
You can use the has() method, and you can call it like this:
if($request->has('email'))){
//do one thing
} else {
//do another
}
Edit:
If you want to check for a situation in which only one input is set, you can do something like this:
Assuming your other inputs are name, phone, address, you can check if any of them are set by calling hasAny on your $request:
if (!$request->hasAny['name', 'phone', 'address'])
{
//now we know none of them are set
//check if email is set:
if ($request->has('email')
{
}
}
You can also use Validator rules in that.
$all = $request->all();
$rules = [
'email' => 'bail|required|email'
];
$validator = Validator::make($all, $rules);
You can try to do this:
if(count($request->except('email')) === 0)
{
// your code here
}
Related
I'm working on updating a user in Laravel, where I made the following validation rule for updating a users email:
"email" => "required|email|unique:users,email,".$this->route("user")->id,
This is inside of my form request.
However, when I post, it still says that the email is already taken? Is this perhaps a bug in the latest version of Laravel?
Thanks!
No it is not a bug, you are using a null value for the id hence the reason why, change your rule to this:
"email" => "required|email|unique:users,email,".$this->user()->id,
Make sure that you have Request $request in your method, and also you have the auth middleware on your controller.
you set the ignore email column so you should pass email not id
"email" => "required|email|unique:users,email,".$this->route("user")->email,
First you have to add rules in user model
static function rules() {
return [
'email' => 'required|email'
];
}
In user controller
use Illuminate\Validation\Rule; // add this one
function add_update_user(Request $request,$user_id) {
$data = $request->all();
unset($data['_token']);
$rules = User::rules();
$rules['email'] = explode('|', $rules['email']);
if (isset($user_id)) // is old user, your get user_id in route
{
$rules['unique_code'][] = Rule::unique('databse_connection_name.users')->ignore($data['email'], 'email');
} else // is new user
{
$rules['email'][] = 'unique:databse_connection_name.users,email';
}
$validator = Validator::make($data, $rules);
...
...
}
In a form request class I use a method like this to validate input data.
class SignupRequest extends FormRequest
{
...
public function rules()
{
return [
'user.email' => 'required_with:user|email',
'user.domain_name' => 'required_with:user|string',
'user.password' => 'required_with:user|string|min:8',
'user.username' => 'required_with:user',
];
}
...
}
Later in a controller I use something like this
$data = $request->get('user', []);
return $this->response($this->userService->create($data, false), 201);
I want somehow to write to my SignupRequest which fields it should allow to be passed. So when later I get $data = $request->get('user', []); I'm sure there are only allowed fields in it.
Is this possible inside the FormRequest?
P.S. I'm aware of $request->only(['field1', 'field2', 'field3']) way, but if I want to limit the fields in SignupRequest extends FormRequest. Because if I use $request->only([...]) in my code several times, I would have to change it several times later. I want to keep it in one place.
You wouldn't need to do this with the request.
One option would be to do something like:
$user = $request->input('user', []);
$data = array_only($user, ['email', 'domain_name', 'password', 'username']);
Or you could even inline it:
$data = array_only($request->input('user', []), ['email', 'domain_name', 'password', 'username']);
Hope this helps!
FormRequest is meant to validate your request data, not control them. You could always extract the inputs you need by doing so.
$data = $request->only(['user.name', 'user.password']);
Edit : Based on your comment, you can do something like this. This allows you to store all the field names within a single request to keep them organised and easier to update.
Add this to your SignupRequest
public function loginData()
{
return array_only($this->input('user', []), ['username', 'password']);
}
Use it in the controller like so
$request->loginData();
return $this->response($this->userService->create($request->loginData(), false), 201);
The Issue
Consider this:
protected $rules = array(
'mobile_number' => 'phone:AUTO,mobile,:country_code'
);
In the above example, the value of country_code needs to change dependant on a variable defined prior to the validation taking place.
With this in mind, is it possible to pass a variable into a Laravel Validation rule?
Please bear in mind, this is how I call my validation:
if(!$this->some_validator->with($data)->passes()){
// Get the validation errors and throw the exception
$error_info = $this->some_validator->formatErrorMessages();
throw new ExampleException(ExampleExceptionType::$VALIDATION_ERROR,$error_info);
}
You are allowed to create custom validation rules.
It looks like this:
Validator::extend('country_code', function($attribute, $value, $parameters, $validator) {
if ($value === 'US') {
return false;
}
return true;
});
And then just use it like this:
protected $rules = array(
'mobile_number' => 'phone:AUTO,mobile|country_code'
);
After re-reading your message I realized that you meant a bit different thing. But take a look at the $parameters argument.
And read documentation. It's quite well covered there https://laravel.com/docs/5.3/validation#custom-validation-rules
With the new way of doing this, if you extend a new rule and you have a variable that you want to pass to the closure, you can do it like this:
Validator::extend(nameOfTheRule, function ($attribute, $value, $parameters, $validator) use ($priorVariable) {
//code
}
I want to get the parameter passed in the validation rule.
For certain validation rules that I have created, I'm able to get the parameter from the validation rule, but for few rules it's not getting the parameters.
In model I'm using the following code:
public static $rules_sponsor_event_check = array(
'sponsor_id' => 'required',
'event_id' => 'required|event_sponsor:sponsor_id'
);
In ValidatorServiceProvider I'm using the following code:
Validator::extend('event_sponsor', function ($attribute, $value, $parameters) {
$sponsor_id = Input::get($parameters[0]);
$event_sponsor = EventSponsor::whereIdAndEventId($sponsor_id, $value)->count();
if ($event_sponsor == 0) {
return false;
} else {
return true;
}
});
But here I'm not able to get the sponsor id using the following:
$sponsor_id = Input::get($parameters[0]);
As a 4th the whole validator is passed to the closure you define with extends. You can use that to get the all data which is validated:
Validator::extend('event_sponsor', function ($attribute, $value, $parameters, $validator) {
$sponsor_id = array_get($validator->getData(), $parameters[0], null);
// ...
});
By the way I'm using array_get here to avoid any errors if the passed input name doesn't exist.
http://laravel.com/docs/5.0/validation#custom-validation-rules
The custom validator Closure receives three arguments: the name of the
$attribute being validated, the $value of the attribute, and an array
of $parameters passed to the rule.
Why Input::get( $parameters ); then? you should check $parameters contents.
Edit.
Ok I figured out what are you trying to do. You are not going to read anything from input if the value you are trying to get is not being submitted. Take a look to
dd(Input::all());
You then will find that
sponsor_id=Input::get($parameters[0]);
is working in places where sponsor_id was submited.
I'm trying to figure out how I can use the is_unique rule from the Codeigniter form validation library in the following situation.
I'm trying to submit a edit user form and have the rule:
$this->form_validation->set_rules('user_name', 'User Name', 'required|trim|xss_clean|is_unique[users.user_name]');
What if other values in the form are being changed but this value stays the same. The form is going to see that this value already exists so how would I protect it from editing if this value isn't changed.
Using your code as an example, the is_unique validation rule works by looking for a field called user_name in your users database table. If the field with the same value exists it validates as false.
To make sure it runs only when the user submits a new value, you could check the posted value $this->input->post('user_name') against the value you pulled from the database to populate your form with. If they are the same, don't validate is_unique;
if($this->input->post('user_name') != $original_value) {
$is_unique = '|is_unique[users.user_name]'
} else {
$is_unique = ''
}
$this->form_validation->set_rules('user_name', 'User Name', 'required|trim|xss_clean'.$is_unique);
There's a better way to go around it, I think, still using CodeIgniters' validation library...
Use edit_unique where you pass an extra parameter which is the id of the row you're editing.. See below.. I use it and works pretty fine for me.. hope it helps
$this->form_validation->set_rules('user_name', 'User Name', 'required|trim|xss_clean|edit_unique[users.user_name.'.$id.']');
$something = $this->input->post('something');
$this->form->validation->set_rules('something','Something','xss_clean|is_unique['tbl'.users]');
if($this->form_validation->run()== FALSE){
}
Simple Way
Just Change isset to is_object in system/libraries/form_validation.php
public function is_unique($str, $field)
{
sscanf($field, '%[^.].%[^.]', $table, $field);
return is_object($this->CI->db) //default isset
? ($this->CI->db->limit(1)->get_where($table, array($field => $str))->num_rows() === 0)
: FALSE;
}
Here's an easy method that worked for me and uses well documented code (thanks to https://github.com/ivantcholakov for sharing it!). I found it referenced at https://github.com/bcit-ci/CodeIgniter/issues/3109#issuecomment-46346280
Download https://github.com/ivantcholakov/starter-public-edition-3/blob/master/platform/application/libraries/MY_Form_validation.php (MIT licensed) and save it to your application at application\libraries\MY_Form_validation.php
Delete these two lines from __construct():
$this->CI->load->helper('checkbox');
$this->CI->load->helper('email');
Delete all the functions except __construct() and unique().
At the end of the __construct() method of your controller add this line:
$this->load->library('form_validation');
As per the documentation of the unique() method update your validation rule to add a "unique" rule like this (e.g. if you already have required and trim rules):
…|required|unique[tablename.fieldname,tablename.(primaryKey-used-for-updates)]|trim...
Extend Form_validation.php library create class inside of application/libraries file name MY_Form_validation.php
<?php
class MY_Form_validation extends CI_Form_validation{
protected $ci;
public function __construct($config = array()){
parent::__construct($config);
$this->ci =& get_instance();
}
public function is_unique_update($str, $field){
$explode=explode('#', $field);
$field_name=$explode['0'];
$field_id_key=$explode['1'];
$field_id_value=$explode['2'];
sscanf($field_name, '%[^.].%[^.]', $table, $field_name);
if(isset($this->ci->db)){
if($this->ci->db->limit(1)->get_where($table, array($field_name => $str,$field_id_key=>$field_id_value))->num_rows() === 0){
$this->ci->form_validation->set_message('is_unique_update', 'The {field} field must contain a unique value.');
return false;
}
return true;
}
}
}
Now in your controller
$this->form_validation->set_rules('user_name', 'User Name', 'required|trim|xss_clean|is_unique_update[users.user_name#id#'.$id.']');
"#" I used for explode the string
where id is primary key of users table
and $id is the value of id.
Now you can use this is_unique_update validation in any controller.
This question is very old but maybe some new people experience this problem and this is the solution for it.
I bet your are using Modular Extensions (HMVC) and you have created a new library, MY_Form_validation. You did id for callbacks, so you have this line of code on your class in order to use callbacks:
$this->form_validation->CI =& $this;
Well, the solution to this is whenever you want to use "is_unique" you must delete this line of code "$this->form_validation->CI =& $this;" from the class. I have experienced this problem and i fix it this way, it works fine now.
If you realy want to use callbacks "$this->form_validation->CI =& $this;", then do it only on required "methods" / "functions" where you don't want to use is_unique.
This code helpful for unique validation to create and update function...
In controller
Add this form validation code in both create and update function
$this->form_validation->set_rules('order_no', 'Order no', 'required|callback_check_order_no');
Add this call back function in controller
function check_order_no($order_no) {
if($this->input->post('id'))
$id = $this->input->post('id');
else
$id = '';
$result = $this->Data_model->check_unique_order_no($id, $order_no);
if($result == 0)
$response = true;
else {
$this->form_validation->set_message('check_order_no', 'Order no already exist');
$response = false;
}
return $response;
}
In model
function check_unique_order_no($id = '', $order_no) {
$this->db->where('order_no', $order_no);
$this->db->where('status', "A");
if($id) {
$this->db->where_not_in('id', $id);
}
return $this->db->get('delivery_order')->num_rows();
}
I'm using codeigniter3 and it shows me error when I check username on updating the value, is_unique is not designed to work with update scenario
so using #Anthony Mutisya's answer, here is the complete solution
in your controller, add this line while validation username of the current user with the database
$this->form_validation->set_rules('user_name', 'User Name', 'required|trim|xss_clean|edit_unique[users.user_name.'.$id.']');
You can get that $id from your submited form.
Now, add the following function to /system/libraries/Form_Validation.php this file. System folder is present in your root of CodeIgniter3 folder.
/**
* edit_unique // for check on update value
*
* Check if the input value doesn't already exist
* in the specified database field.
*
* #param string $str
* #param string $field
* #return bool
*/
function edit_unique($value, $params) {
$CI =& get_instance();
$CI->load->database();
$CI->form_validation->set_message('edit_unique', "Sorry, that %s is already being used.");
list($table, $field, $current_id) = explode(".", $params);
$query = $CI->db->select()->from($table)->where($field, $value)->limit(1)->get();
if ($query->row() && $query->row()->id != $current_id)
{
return FALSE;
} else {
return TRUE;
}
}
It works perfectly fine in my case
CodeIgniter 4 has already solution for that,
$validation->setRules([
'email' => 'required|valid_email|is_unique[users.email,id,{id}]',
]);
$_POST = [
'id' => 4,
'email' => 'foo#example.com',
];
then the {id} placeholder would be replaced with the number 4, giving this revised rule:
$validation->setRules([
'email' => 'required|valid_email|is_unique[users.email,id,4]',
]);
Official Documentation
we must have to add table name for is_unique
for Exp.
is_unique[users.email]