Codeigniter simple validation callback not working

Question

UPDATED

I'm creating a codeigniter callback for validating an input where users enter programming tags for example php, js, jquery. Values are separated by commas.

I want to show a message if you enter duplicate tags for example php, jquery, php, js where php would be the duplicate.

First in my controller I set the validation rules for the 'user_tags` input

$this->form_validation->set_rules('user_tags', 'User Tags', 'callback_user_tags_dublicates', 'trim|xss_clean|max_length[100]|regex_match[/^[a-z,0-9+# ]+$/i]');

Then the callback

<?php function user_tags_dublicates($str)
        {
            $val = $str; //the input value (all the CSV)
            $tags = str_getcsv($val); //creates an array of the CSV
            if(count($tags) != count(array_unique($tags))) //if array not equal to unique array it contains duplicates
            {
                $this->form_validation->set_message('user_tags', 'The %s field can not have duplicate tags.');
                return FALSE;
            }
            else
            {
                return TRUE;
            }
        } ?>

and finally in the view I show my error.

<?php echo form_error('user_tags'); ?>

When I enter duplicate tags I get

Unable to access an error message corresponding to your field name.

I'm not sure what I'm doing wrong. I tested the function in a static page without validation rules and it works.

Try using "<?php echo validation_errors(); ?>"

Brad
– Brad

2011-05-31 01:25:00 +00:00
Commented May 31, 2011 at 1:25 — Brad
– Brad, Commented May 31, 2011 at 1:25

afarazit · Accepted Answer · 2011-05-29 20:37:51Z

2

set your error message for user_tags inside your user_tags_dublicates() function

   $this->form_validation->set_message('user_tags', 'The %s field can not have duplicate tags.');

answered May 29, 2011 at 20:37

afarazit

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3 Comments

CyberJunkie Over a year ago

thanks I fixed and I get Unable to access an error message corresponding to your field name.

CyberJunkie Over a year ago

nvm, I actually had to add'_dublicates' when setting the error message

afarazit Over a year ago

move set_message outside the function. for example place it under your set_rules() statements

Anze Jarni · Accepted Answer · 2011-05-29 20:40:58Z

1

This might sound stoopid but have you checked:

$tags = str_getcsv($val); //creates an array of the CSV

actually returns the tags properly?

answered May 29, 2011 at 20:40

Anze Jarni

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1 Comment

CyberJunkie Over a year ago

yes it creates an array. I have tested the entire function without the validation rules and it works

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