[eluser]Unknown[/eluser]
I extend core libraries to detect the request file type and load applicable view.
What I want to do is that if user request 'http://localhost/ci/blogs/index.xml', it will try to load a view for XML. In other cases:
If request 'blogs/index', load 'views/index.php' to render HTML document (default type).
If request 'blogs/index.xml', load 'views/index.xml.php' to render XML document.
If request 'blogs/index.pdf', load 'views/index.pdf.php' to render PDF document.
and so on.
Code:
class MY_URI extends CI_URI {
var $requestExt = false; // The request extension name.
function _explode_segments()
{
foreach(explode("/", preg_replace("|/*(.+?)/*$|", "\\1", $this->uri_string)) as $val)
{
// Filter segments for security
$val = trim($this->_filter_uri($val));
if ($val != '')
$this->segments[] = $val;
}
$refLastSegment =& $this->segments[count($this->segments)-1];
if ( preg_match('/(.+)\.(\w+)$/', $refLastSegment, $matches) ) {
$refLastSegment = $matches[1];
$this->requestExt = strtolower($matches[2]);
}
}
/**
* Fetch the file extension.
*
* If user request 'http://localhost/ci_test/index.php/control/index.xml',
* this will return 'xml'.
*
* @access public
* @return string
*/
function extension()
{
return $this->requestExt;
}
}
Code:
class MY_Loader extends CI_Loader {
function _ci_load($_ci_data)
{
$CI =& get_instance();
@include(APPPATH.'config/mimes'.EXT);
$docExt = $CI->uri->extension();
// Set the default data variables
foreach (array('_ci_view', '_ci_vars', '_ci_path', '_ci_return') as $_ci_val)
{
$$_ci_val = ( ! isset($_ci_data[$_ci_val])) ? FALSE : $_ci_data[$_ci_val];
}
// Set the path to the requested file
$_ci_ext = pathinfo($_ci_view, PATHINFO_EXTENSION);
if ($_ci_path == '')
{
//$_ci_file = ($_ci_ext == '') ? $_ci_view.EXT : $_ci_view;
if ($_ci_ext == '') {
$_ci_file = $_ci_view
. ($docExt ? '.' . $docExt : '')
. EXT;
}
else {
$_ci_file = $_ci_view;
}
$_ci_path = $this->_ci_view_path . $_ci_file;
if ( !file_exists($_ci_path) and $docExt == 'html') {
$_ci_path = $this->_ci_view_path . $_ci_view . EXT;
}
}
else
{
$_ci_x = explode('/', $_ci_path);
$_ci_file = end($_ci_x);
}
if ( ! file_exists($_ci_path))
{
show_error('Unable to load the requested file: '.$_ci_file);
}
if ( $docExt and !isset($mimes[$docExt]) ) {
show_error('The requested document type is not accepted: '.$docExt);
}
if ( $docExt and $_ci_ext == '') {
$mimeType = $mimes[$docExt];
$CI->output->set_header('Content-type: ' . $mimeType);
log_message('debug', 'File MIME Type: ' . $mimeType);
}
if ($this->_ci_is_instance())
{
$_ci_CI =& get_instance();
foreach (get_object_vars($_ci_CI) as $_ci_key => $_ci_var)
{
if ( ! isset($this->$_ci_key))
{
$this->$_ci_key =& $_ci_CI->$_ci_key;
}
}
}
if (is_array($_ci_vars))
{
$this->_ci_cached_vars = array_merge($this->_ci_cached_vars, $_ci_vars);
}
extract($this->_ci_cached_vars);
ob_start();
if ((bool) @ini_get('short_open_tag') === FALSE AND config_item('rewrite_short_tags') == TRUE)
{
echo eval('?>'.preg_replace("/;*\s*\?>/", "; ?>", str_replace('<?=', '<?php echo ', file_get_contents($_ci_path))).'<?php ');
}
else
{
include($_ci_path);
}
log_message('debug', 'File loaded: '.$_ci_path);
// Return the file data if requested
if ($_ci_return === TRUE)
{
$buffer = ob_get_contents();
@ob_end_clean();
return $buffer;
}
if (ob_get_level() > $this->_ci_ob_level + 1)
{
ob_end_flush();
}
else
{
// PHP 4 requires that we use a global
global $OUT;
$OUT->append_output(ob_get_contents());
@ob_end_clean();
}
}
}
