/**
* DM2 creation callback, binds to the current content topic.
*/
public function &dm2_create_callback(&$controller)
{
$this->_article = new midcom_db_article();
$this->_article->topic = $this->_content_topic->id;
if (array_key_exists('name', $this->_defaults) && $this->_defaults['name'] == 'index') {
// Store this to article directly in case name field is not editable in schema
$this->_article->name = 'index';
}
if (!$this->_article->create()) {
debug_print_r('We operated on this object:', $this->_article);
throw new midcom_error('Failed to create a new article. Last Midgard error was: ' . midcom_connection::get_error_string());
}
// Callback possibility
if ($this->_config->get('callback_function')) {
if ($this->_config->get('callback_snippet')) {
midcom_helper_misc::include_snippet_php($this->_config->get('callback_snippet'));
}
$callback = $this->_config->get('callback_function');
$callback($this->_article, $this->_content_topic);
}
return $this->_article;
}
/**
* Loads the file/snippet necessary for a given plugin, according to its configuration.
*
* @param string $namespace The plugin namespace to use.
* @param string $plugin The plugin to load from the namespace.
*/
public function _load_plugin_class($namespace, $plugin)
{
$plugin_config = self::$_plugin_namespace_config[$namespace][$plugin];
// Sanity check, we return directly if the configured class name is already
// available (dynamic_load could trigger this).
if (class_exists($plugin_config['class'])) {
return;
}
$i = strpos($plugin_config['src'], ':');
if ($i == false) {
$method = 'snippet';
$src = $plugin_config['src'];
} else {
$method = substr($plugin_config['src'], 0, $i);
$src = substr($plugin_config['src'], $i + 1);
}
switch ($method) {
case 'file':
require_once MIDCOM_ROOT . $src;
break;
case 'component':
midcom::get('componentloader')->load($src);
break;
case 'snippet':
midcom_helper_misc::include_snippet_php($src);
break;
default:
throw new midcom_error("The plugin loader method {$method} is unknown, cannot continue.");
}
if (!class_exists($plugin_config['class'])) {
throw new midcom_error("Failed to load the plugin {$namespace}/{$plugin}, implementation class not available.");
}
}
/**
* Creates an instance of the renderer set in the system configuration.
*
* This is called during the initialize code and will make the renderer
* available immediately after startup.
*/
function _create_default_renderer()
{
$default = $this->_config->get('default_renderer');
if ($default == 'none') {
$this->renderer = 'none';
return;
}
$src = $this->_config->get('default_renderer_src');
if ($src) {
// Ensure that the snippet is only loaded once.
if (!class_exists($default)) {
midcom_helper_misc::include_snippet_php($src);
if (!class_exists($default)) {
throw new midcom_error("The renderer class set in the DM2 configuration does not exist.");
}
}
$this->renderer = new $default($this->namespace);
} else {
$this->create_renderer($default);
}
}
