Update function does not work - Beginner problem

[eluser]Wondering Coder[/eluser]
in your model you didn't set your $id

Code:

function update_record($data)
    {
        $this->db->where('id', $id); //you didn't declare this $id
        $this->db->update('data', $data);
    }

should be

Code:

function update_record($data,$id)
    {
        $this->db->where('id', $id); //you didn't declare this $id
        $this->db->update('data', $data);
    }

or

function update_record($data)
    {
        $this->db->where('id', 1); //this will update your table data with id =1
        $this->db->update('data', $data);
    }

and of course you have to change your controller also
should be like this: $this->site_model->update_record($data, $id);