Front end template form validation using modue
Development and Programming
My requirement is how we validate and display message in front end template form using module? Below is my code
I have created a module “abc” and added function “my_form” in mod.abc.php
function my_form(){
$data['hidden_fields'] = array(
'ACT' => ee()->functions->fetch_action_id('abc', 'my_form_action'),
'RES' => ee()->TMPL->fetch_param('results'),
);
$data['id'] = ee()->TMPL->form_id;
$data['class'] = ee()->TMPL->form_class;
$res = ee()->functions->form_declaration($data);
$res .= stripslashes(ee()->TMPL->tagdata);
$res .= "</form>";
return $res;
} <pre><code>function my_form_action(){
ee()->load->library(‘form_validation’); ee()->form_validation->set_rules(‘firstname’,’First Name’,’trim|required|max_length[150]’); ee()->form_validation->set_rules(‘lastname’,’Last Name’,’trim|required|max_length[150]’);
ee()->view = new stdClass;
ee()->view->error = ‘ ’;
if (ee()->form_validation->run() == FALSE) {
} else {
}
ee()->functions->redirect(‘/abctemplateform’);
}
In my template file “abctemplateform”
{exp:abc:my_form}
First Name<input type="text" name="firstname" id="firstname" /></p>
Last Name<input type="text" name="lastname" id="lastname" /></p>
<input type="submit" name="submit" id="submit" value="Add" /></p>
{/exp:abc:my_form}
Hi there. You basically need to get the errors out of the form validation library some how. Here’s one way. Call error_string(), like this:
$error_string = ee()->form_validation->error_string();That will give you a string of all the error messages the form generated. You can even optionally add a prefix and suffix for each error, for instance if you wanted to display the errors in a list:
$error_string = ee()->form_validation->error_string('<li>', '</li>');Then, just pass along that string to the template however you like. Either append it to the form declaration or create a separate tag for it.
Does that do what you need?
Thanks Kevin
Then, just pass along that string to the template however you like. Either append it to the form declaration or create a separate tag for it.
>> Please can you give a example code of both way. Thanks
Sure, so in your first code example where you’re calling form declaration, you can do this:
$error_string = ee()->form_validation->error_string();
$res = ee()->functions->form_declaration($data).$error_string;Then it will just simply appear under the form tag in the HTML.
Or, when you’re setting up the tagdata for return, send it as a variable to the Template class:
$error_string = ee()->form_validation->error_string();
$res .= stripslashes(ee()->TMPL->parse_variables_row(ee()->TMPL->tagdata, array('errors' => $error_string));Then render it on the front-end as {errors} wherever you like within your tag pair.
Thanks Kevin, Now we have achieve this.
Just one thing: How we apply “set_flashdata” in module function and after redirect on template file how we get this message?
Great!
To get the flashdata, call flashdata() instead. So if you set a message like this:
ee()->session->set_flashdata('my_message', 'Here is my message');You can then get your stored message after a redirect like this:
$my_message = ee()->session->flashdata('my_message');