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<?php
class Routes_model extends CI_Model {
var $file_name;
function __construct()
{
parent::__construct();
$this->file_name = APPPATH.'config/routes'.EXT;
}
// Check for existing indexes or reserved words
function verify($route)
{
$route = strtolower($route);
// Can't be the same as the name of a controller
if ($handle = opendir(APPPATH.'controllers')) {
while (false !== ($file = readdir($handle))) {
if ($file != "." && $file != "..") {
$file = str_replace('.php', '', strtolower($file));
if($route == $file) return false;
}
}
closedir($handle);
}
// otherwise, we're good
return true;
}
// does the route exist ?
function exists($route)
{
if(array_key_exists($route, $this->router->routes)) return true;
}
// Update an entry
function update($old_slug, $new_slug, $path)
{
// Does the old exist ? if not, just append it
if( ! $this->exists($old_slug)) return $this->append($new_slug, $path);
// Is the new valid ?
if( ! $this->verify($new_slug)) return false;
// does the new conflict?
if( $this->exists($new_slug)) return false;
// read in the whole file
$contents = file($this->file_name);
// Open the file to rewrite
$fp = fopen($this->file_name, 'w');
if(!$fp) return false; // can't open the file
/// re-write the file as we search it, skipping over the line we want to remove
// This isn't the most efficient way to do this, but since we have to loop and rewrite the file,
// we might as well do it in one swoop
$found_line = false;
$search_string = "\$route['$old_slug']";
foreach($contents as &$line)
{
if( ! stristr($line, $search_string))
{
fwrite($fp, $line);
} else {
fwrite($fp, "\$route['$new_slug'] = '$path';\n"); // write replacement
$found_line = true;
}
}
fclose($fp);
if(!$found_line) return false;
return true;
}
// Remove an entry
// this should happen less often, when a product, etc, is deleted.
function remove($slug)
{
// Does this exist ? if not don't bother reading the file
if( ! $this->exists($slug)) return false;
// read in the whole file
$contents = file($this->file_name);
// Open the file to rewrite
$fp = fopen($this->file_name, 'w');
if(!$fp) return false; // can't open the file
/// re-write the file as we search it, skipping over the line we want to remove
// This isn't the most efficient way to do this, but since we have to loop and rewrite the file,
// we might as well do it in one swoop
$found_line = false;
$search_string = "\$route['$slug']";
foreach($contents as &$line)
{
if( ! stristr($line, $search_string))
{
fwrite($fp, $line);
} else $found_line = true;
}
fclose($fp);
if(!$found_line) return false;
return true;
}
// Add an entry
function append($slug, $path)
{
// Reserved path?
if( ! $this->verify($slug)) return false;
// Are we overwriting something?
if( $this->exists($slug)) return false;
// if it doesn't exist, we can append it to our file
$fp = fopen($this->file_name, 'a');
if(!$fp) return false; // can't open the file
fwrite($fp, "\$route['$slug'] = '$path';\n");
fclose($fp);
return true;
}
function get_all()
{
$all = $this->db->get('routes')->result();
$routes = array();
foreach($all as $route)
{
$routes[$route['slug']] = $route['route'];
}
return $routes;
}
function get($id)
{
return $this->db->get_where('routes', array('id'=>$id))->row();
}
// save or update a route and return the id
function save($route)
{
if(!empty($route['id']))
{
$this->db->where('id', $route['id']);
$this->db->update('routes', $route);
return $route['id'];
}
else
{
$this->db->insert('routes', $route);
return $this->db->insert_id();
}
}
function check_slug($slug, $id=false)
{
if($id)
{
$this->db->where('id !=', $id);
}
$this->db->where('slug', $slug);
return (bool) $this->db->count_all_results('routes');
}
function validate_slug($slug, $id=false, $count=false)
{
if($this->check_slug($slug.$count, $id))
{
if(!$count)
{
$count = 1;
}
else
{
$count++;
}
return $this->validate_slug($slug, $id, $count);
}
else
{
return $slug.$count;
}
}
function delete($id)
{
$this->db->where('id', $id);
$this->db->delete('routes');
}
}