Comments on: Basic Pattern Matching Form Validation in CodeIgniter

By: Tahsin Hasan

Tahsin Hasan — Wed, 21 Jul 2010 06:29:37 +0000

Hello, see how you can secure your website more with this extended My input libray for codeigniter here and also see the weakness of codeignite Input library on here. Thanks.

By: Pisyek

Pisyek — Mon, 05 Jul 2010 02:17:39 +0000

i have try your tutorial but somehow there is a problem with the lang file.

i need to name it my_form_validation_lang instead of form_validation_lang

thanks for the code…

nice sharing.

By: Michael Wales

Michael Wales — Thu, 08 Apr 2010 17:53:56 +0000

@Dan
My is_unique() involves a lot less work, but nonetheless good job on being inventive and coming up with a solution that meets your needs!

By: Dan

Dan — Thu, 08 Apr 2010 17:31:40 +0000

@Michael
I don’t know how you plan to implement the “is_unique” rule, but I have done this in the past. My way of doing it is to have the validation function take 2 param…the model name and the field name. Then I just have to have a “is_unique” function the specified model. The validation function then calls the is_unique function in the model and sends it the user input and the field name. The is_unique then chacks the database, and does its then, then returns TRUE or FALSE.

Here is how I use it:
$this->form_validation->set_rules(‘username’, ‘Username’, ‘trim|required|is_unique[user_model,username]‘);

Note: The actual function “is_unique” has a prototpye of “function is_unique($str, $params)” then I have to parse the $params variable out becasue of the way that the FormValidation library sends it.

If you would like to see the code let me know and I can shoot it over.

Dan

By: Michael Wales

Michael Wales — Thu, 25 Feb 2010 18:18:15 +0000

@Todd
Yeah, it’s definitely a pain in the ass. One of my favorite personal validation functions is is_unique, but you’ll have to wait for the CodeIgniter Cookbook for that one!

By: Todd Perkins

Todd Perkins — Thu, 25 Feb 2010 18:16:04 +0000

Very cool Michael! I hate always having to copy my callbacks from project to project.