CODEWITHSUNDEEP
phpoopcodeignitercodeigniter-2
StackOverflowNewbie
StackOverflowNewbie

Reputation: 40643

CodeIgniter Validation Errors - how to get an array of key => value pairs?

Assuming a form with errors, is there a way to get an array of key (the field name) / value (the error message) pairs? For example:

['name'] => 'The name field is required',
['age'] => 'The name must be greater than 18'

If there is no native way to do this, I will extend the form validation library and expose the protected property *_error_array*.

Upvotes: 2

Views: 2592

Answers (2)

Valkay
Valkay

Reputation: 193

This might be way belated but I want to share a solution that I use that does not involve extending CI form validation library. The question already has an accepted answer but I hope that it will benefit someone else.

Unfortunately, CodeIgniter's $this->form_validation->error_array() method returns only the errors that emanate from the set_rules() method. It does not account for the name of the form field that generated the error. However, we can leverage another of CodeIgniter's method $this->form_validation->error(), which returns the error(s) associated with a particular form field, by passing the name of the field as parameter. 

//form validation rules
$this->form_validation->set_rules('f_name', 'First Name', 'trim|required', 
    ['required' => 'First Name is required']
);
$this->form_validation->set_rules('l_name', 'Last Name', 'trim|required', 
    ['required' => 'Last Name is required']
);
$this->form_validation->set_rules('email', 'Email', 'trim|required|valid_email|is_unique[users.email]', 
    [
        'required'      => 'Email is required',
        'valid_email'   => 'Email format is invalid',
        'is_unique'     => 'Email already exists'
    ]
);
$error_arr = []; //array to hold the errors
//array of form field names
$field_names= ['f_name', 'l_name', 'email'];
//Iterate through the form fields to build a field=error associative pair.
foreach ($field_names as $field) {
    $error = $this->form_validation->error($field);
    //field has error?
    if (strlen($error)) $error_arr[$field] = $error;
}

//print_r($error_arr);

Upvotes: 0

StackOverflowNewbie
StackOverflowNewbie

Reputation: 40643

I ended up extending the core class:

class MY_Form_validation extends CI_Form_validation
{
    public function error_array()
    {
        return $this->_error_array;
    }
}

Upvotes: 8

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