/**
* Set the route mapping
*
* This function determines what should be served based on the URI request,
* as well as any "routes" that have been set in the routing config file.
*
* @access private
* @return void
*/
function _set_routing()
{
// Are query strings enabled in the config file? Normally CI doesn't utilize query strings
// since URI segments are more search-engine friendly, but they can optionally be used.
// If this feature is enabled, we will gather the directory/class/method a little differently
$segments = array();
if ($this->config['enable_query_strings'] === TRUE and isset($_GET[$this->config['controller_trigger']])) {
if (isset($_GET[$this->config['ns_trigger']]) and isset($this->routes[trim($this->uri->_filter_uri($_GET[$this->config['ns_trigger']]))]['ns'])) {
$this->set_ns($this->routes[trim($this->uri->_filter_uri($_GET[$this->config['ns_trigger']]))]['ns']);
}
if (isset($_GET[$this->config['controller_trigger']])) {
$this->set_class($seg = trim($this->uri->_filter_uri($_GET[$this->config['controller_trigger']])));
$segments[] = $seg;
}
if (isset($_GET[$this->config['function_trigger']])) {
$this->set_method(trim($this->uri->_filter_uri($_GET[$this->config['function_trigger']])));
$segments[] = $this->fetch_method();
}
}
// Set the default controller so we can display it in the event
// the URI doesn't correlated to a valid controller.
$this->default_controller = (!isset($this->routes['default_controller']) or $this->routes['default_controller'] == '') ? FALSE : strtolower($this->routes['default_controller']);
// Were there any query string segments? If so, we'll validate them and bail out since we're done.
if (count($segments) > 0) {
return $this->_validate_request($segments);
}
// Fetch the complete URI string
$this->uri->_fetch_uri_string();
// Is there a URI string? If not, the default controller specified in the "routes" file will be shown.
if ($this->uri->uri_string == '') {
return $this->_set_default_controller();
}
// Do we need to remove the URL suffix?
$this->uri->_remove_url_suffix();
// Compile the segments into an array
$this->uri->_explode_segments();
// Parse any custom routing that may exist
$this->_parse_routes();
// Re-index the segment array so that it starts with 1 rather than 0
$this->uri->_reindex_segments();
}
