/**
* \param $title the title for the page
* \param $equiv_url the equivalent URL on Stack Exchange
* \param $site the site for the current page
*
* Note: it is important to call this method since it also sets a number of
* special view variables that the main template uses.
*/
protected function SetPageInfo($title, $equiv_url = null, $site = null)
{
// Expose the document root as a view variable
$this->SetViewVariable('document_root', URLManager::GetDocumentRoot());
// Provide the view with access to the current page URL
$this->SetViewVariable('page_url', URLManager::$current_url);
// If the site is provided, include it in the view variables and substitute
// the information in some of the other fields.
if ($site !== null) {
// Retrieve the site information from the API
$this->site = API::Site($site)->Info()->Filter(new Filter('!-q8LLJA7'))->Exec()->Fetch();
// Pass on the site name and API parameter to the views
$this->SetViewVariable('site', $this->site['site']['api_site_parameter']);
$this->SetViewVariable('site_name', $this->site['site']['name']);
$this->SetViewVariable('site_prefix', URLManager::GetDocumentRoot() . '/' . $this->site['site']['api_site_parameter']);
// Replace '{name}' in page title with the site name
$title = str_replace('{name}', $this->site['site']['name'], $title);
// Do the same for the page's equivalent URL
if ($equiv_url !== null) {
$equiv_url = str_replace('{url}', $this->site['site']['site_url'], $equiv_url);
}
}
// Set the page title and equivalent URL
$this->SetViewVariable('page_title', $title);
if ($equiv_url !== null) {
$this->SetViewVariable('equiv_url', $equiv_url);
}
}
public function Go()
{
// Determine whether we can use the default template for displaying errors
$have_template = is_file('views/template.inc') === TRUE;
// Everything below is wrapped in a try block that captures
// any errors that the methods below throw. This allows us to
// try to display an error page.
try {
// Ensure the requirements are met
$this->CheckRequirements();
// Initialize the path
$this->ParsePath();
// Run the controller
$view_variables = $this->RunController();
// As long as $view_variables isn't null, then
// we display the view.
if ($view_variables !== null) {
$this->DisplayView($view_variables);
}
} catch (Exception $e) {
if ($have_template) {
// Get the document root
$document_root = URLManager::GetDocumentRoot();
// Display the default template file with the error
$page_contents = '<h2>An Error Has Occurred</h2>';
$page_contents .= $e->getMessage();
$page_contents .= "<p>If you are seeing this error instead of the page you were looking for, try visiting the <a href='/{$document_root}'>home page</a>.</p>";
global $config;
header("Status: 503 Server Error");
require 'views/template.inc';
} else {
echo $e->getMessage();
}
}
}
