CodeIgniter - Checking to see if a value already exists in the database

Question

Im running CodeIgniter for a project of mine ... Im fairly new to this, i have the standard form validation checks for my form, except im unsure of how to check if the value

Answer 1

This works for me might work for someone

In your controller, create a method similar to this:

function rolekey_exists('table','field','value')
{
  $this->roles_model->role_exists($key);
}

And in your model that handles roles, add something like this:

function role_exists($table,$field,$value)
{
    $this->db->where($field,$value);
    $query = $this->db->get($table);
    if (!empty($query->result_array())){
        return 1;
    }
    else{
        return 0;
    }
}