Question

I’m having some trouble updating records with the Codeigniter framework. I’m using the MVC pattern and active records.

The code is for updating user profiles.

In my model, Profile_model I have a function to update…

function profile_update() 
    {
        $this->db->where('user_id', 2);
        $this->db->update('user_profiles', $data);              
    }

The controller Profile_crud should retrieve data from a form and send the data to the model.

function update() 
    {
        $data = array (
            'country' => $this->input->post('country'),
            'website' => $this->input->post('website')         
        );

        $this->load->model('Profile_model');
        $this->Profile_model->profile_update($data);
    }

and the form in my view profile.php On submit it triggers the update function in my controller.

Update

<?php echo form_open('profile_crud/update'); ?>

<p>
<label for="country">Country</label>
<input type="text" name="country" id="country" />
</p>
<p>
<label for="website">Website</label>
<input type="text" name="website" id="website" />
</p>

<p><input type="submit" value="Save" /></p>

<?php echo form_close(); ?>

When I submit the form I get 3 types of errors.

A PHP Error was encountered

Severity: Notice

Message: Undefined variable: data

Filename: models/profile_model.php

Line Number: 27

line 27 is $this->db->update('user_profiles', $data);

A PHP Error was encountered

Severity: Warning

Message: Cannot modify header
information – headers already sent by
(output started at
/home1/requestg/public_html/housedwork/system/libraries/Exceptions.php:166)

Filename: codeigniter/Common.php

Line Number: 356

and

A Database Error Occurred

You must use the “set” method to
update an entry.

I’m not sure what I’m doing wrong.. Can someone please help?

Answer 1

For your profile_update function, you are specifying the argument of $data:

$this->Profile_model->profile_update($data);

But in your model function, you have not specified one:

function profile_update() 
{
    $this->db->where('user_id', 2);
    $this->db->update('user_profiles', $data);              
}

It should be:

function profile_update($data) 
{
    $this->db->where('user_id', 2);
    $this->db->update('user_profiles', $data);              
}