Unknown column 'email' in 'field list'

[eluser]TheFuzzy0ne[/eluser]
If you need to make several calls to $this->CI, then you can just set a variable within the method to use:

Code:

function some_method()
{
    $CI =& get_instance(); // Just like you would in a helper.

    $value = $CI->uri->segment(3);
}

Don't get me wrong. I'm not saying that the way you're doing it is not right, I'm just suggesting some alternatives you may not have thought of.