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+--- Thread: Validation v/s Form_Validation (/showthread.php?tid=21809)
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Validation v/s Form_Validation - El Forum - 08-21-2009
[eluser]Yash[/eluser]
In old validation
Code:
$this->input->post('name');
$_POST['name'];
$this->validation->name;In Form validation
Code:
$this->input->post('name'); //works
$_POST['name']; //works
$this->form_validation->name; //not working?This is not a Qs really just curious why not we can't access field like this.
Validation v/s Form_Validation - El Forum - 08-27-2009
[eluser]Yash[/eluser]
anyone ... any comments?
Validation v/s Form_Validation - El Forum - 08-27-2009
[eluser]pistolPete[/eluser]
Just compare the two classes:
In Validation.php each form field is saved as a private class variable.
In Form_validation.php the form fields are saved in a private array called $_field_data.
Validation v/s Form_Validation - El Forum - 08-27-2009
[eluser]Yash[/eluser]
ok I can see that
so how can I access
Code:
$this->form_validation->name;something like this?
Code:
$this->form_validation->array['name'];Validation v/s Form_Validation - El Forum - 08-27-2009
[eluser]pistolPete[/eluser]
Why don't you just use the form helpers? http://ellislab.com/codeigniter/user-guide/helpers/form_helper.html
set_value(), set_select(), etc.
Validation v/s Form_Validation - El Forum - 08-27-2009
[eluser]Yash[/eluser]
I know that as well.
I want give value from controller with a initial value. Like we want to do in edit case.
also when we are using callback function(s) if we need to access 2 fields then $this->validation->name would be very handy..any alternate to this?
Code:
// Check username/email for uniqueness
function _check_username($username)
{
$email = $this->validation->member_email;
$query = $this->db->getwhere('board_members', array('member_name'=>$username), 1, 0);
if ($query->num_rows() != 0)
{
$this->validation->set_message('_check_username', 'This username has already been registered');
return FALSE;
}
elseif($email!="")
{
$query = $this->db->getwhere('board_members', array('member_email'=>$email), 1, 0);
if ($query->num_rows() != 0)
{
$this->validation->set_message('_check_username', 'This email address has already been registered');
return FALSE;
}
}
return TRUE;
}Validation v/s Form_Validation - El Forum - 08-27-2009
[eluser]LuckyFella73[/eluser]
You can set an initial value using the form_validation like this:
Code:
<?php
# controller:
if ($query->num_rows() > 0)
{
foreach ($query->result() as $row)
{
# whatever you want to edit from your db ..
$data['title'] = $row->title;
$data['date'] = $row->date;
$data['text'] = $row->text;
}
}
# view file:
?>
<input type="text" name="title" id="title" class="default" value="<?php echo set_value('title',$title); ?>"/>
<input type="text" name="date" id="date" class="default" value="<?php echo set_value('date',$date); ?>"/>
<input type="text" name="text" id="text" class="default" value="<?php echo set_value('text',$text); ?>"/>In your controller you just need to check if your edit function is called
from your form - then set the $data['abcd'] part via your POST data instead
of db values.
Your callback function is only needed after submitting the form, so you can
use (for example):
Code:
$this->input->post('title')Cheers
Validation v/s Form_Validation - El Forum - 08-27-2009
[eluser]Phil Sturgeon[/eluser]
Wow, I really need to convert PyroCMS to use the new form validation library, the syntax and helper functions cut out A LOT of extra code!
Validation v/s Form_Validation - El Forum - 08-27-2009
[eluser]Yash[/eluser]
@luckyfella73
You are setting 2 times same value
what I'm saying that I set value once. I know what you're suggesting me. I'm currently using this.
anyone...
Validation v/s Form_Validation - El Forum - 08-27-2009
[eluser]LuckyFella73[/eluser]
[quote author="Yash" date="1251385063"]@luckyfella73
You are setting 2 times same value
[/quote]
Where do set the same value?
I just posted a bit code where the controller set the
initial value comming from database. After submitting
your form the "value-parameter" of your form element
has to be set using the post data.
In your controller/ edit function you need something like that:
Code:
<?php
# Controller - very simplified ..
function edit()
{
if ( isset($_POST['form']) AND $_POST['form'] == 'form_edit' ) // the form has beend send
{
$data['title'] = $this->input->post('title');
$data['date'] = $this->input->post('date');
$data['text'] =$this->input->post('text');
$this->form_validation->set_rules('title', 'Title', 'trim');
$this->form_validation->set_rules('date', 'Date', 'trim');
$this->form_validation->set_rules('text', 'Text', 'trim');
if ($this->form_validation->run() == FALSE)
{
// in case validation fails, set values of form elements by using the POST values
$this->load->view('news/view_news_edit.php', $data); // dummy filenames
}
else
{
// do your db stuff
// call success page or whatever
}
}
else // set initioal values from db:
{
# your query here
if ($query->num_rows() > 0)
{
foreach ($query->result() as $row)
{
# whatever you want to edit from your db ..
$data['title'] = $row->title;
$data['date'] = $row->date;
$data['text'] = $row->text;
}
}
$this->load->view('news/view_news_edit.php', $data);
}
}
?>There are two parts in the code that set a form value but thats the
way you have to go if you want to edit data from db using a form because
the source of the values are different.
Sorry if I get you wrong completely