Codeigniter form validation

Im using codeigniter validation class when submit forms. Also Im using set_value() to re-populate fields on form fails. If I have

$this->form_validation->set_rules('name', 'Name', 'required')

set_value() works and fiel开发者_如何学运维d is re-populated. But what if I dont wont the field to be required ? If I do not add $this->form_validation* re-populating is not working

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The website-lab's post is correct - it's a feature of CI that no set_value($foo) are returned unless there is a validation rule.

If you don't want to have empty validation rules, there are a few hacks available and you can extend the form helper

this thread has a lot of information -

http://codeigniter.com/forums/viewthread/96617/P15/#689642

I also believe you can just use

$this->input->post('my_field')

in your view, if using empty validations or hacking the core doesn't appeal to you.

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Include the field form in the validation class but do not set any rules for it.

$this->form_validation->set_rules('someField', '', '');

This field data will now work with set_value but wont have any validation rules run across it.