function _new_instance($controller)
{
$element_name = $controller->get_param('element_name');
$constructor_values = $controller->get_param('constructor_values');
if (!$element_name) {
$controller->set_message('Error creating new instance: the Element name was not provided', true);
Uigu2_Controller::redirect('index');
}
if (!$constructor_values) {
$constructor_values = array();
}
if (!($result = $controller->create_object($element_name, $constructor_values))) {
$controller->set_message('Error creating new instance of Element ' . $element_name, true);
Uigu2_Controller::redirect('index');
}
Uigu2_Controller::redirect('show_element/' . $element_name);
}
function _clear($controller)
{
$controller->clear_data();
Uigu2_Controller::redirect('index');
}
function _show_element($controller)
{
//TODO make this a parameter-by-url always
if (($element_name = $controller->get_param('element_name')) || ($element_name = $controller->get_param())) {
$view = $controller->get_view();
if ($element = $controller->get_element($element_name)) {
$view->set('name', $element['name']);
$view->set('element_kind', $element['element_kind']);
//Create table with parameters needed for constructor
//TODO do not create html here, leave it to the view
if (count($element['constructor_params']) > 0) {
$constructor_table_body = '<tr><th>Attribute Name</th><th>Type</th><th>Value</th></tr>';
$form_enabled = true;
foreach ($element['constructor_params'] as $p) {
$field = array();
if (isset($element['attributes'][$p])) {
$field = $element['attributes'][$p];
$value = isset($field['value']) ? $att['value'] : '';
$input_field = "<input type='text' name='constructor_values[]' value='{$value}'/>";
} else {
$field = $element['associations'][$p];
//Parameter for an association must be an index ("ID") for an existing instance
$instances = $controller->get_objects($field['type']);
if (!empty($instances) && count($instances) > 0) {
$input_field = "<select name='constructor_values[]'>";
for ($i = 0; $i < count($instances); $i++) {
$input_field .= "<option value='{$i}'>Object ID {$i}</option>";
}
$input_field .= '</select>';
} else {
$input_field = "<input type='text' disabled='disabled'/>";
$form_enabled = false;
}
}
$constructor_table_body .= "<tr><td>{$field['name']}</td>" . "<td>{$field['type']}</td>" . "<td>{$input_field}</td></tr>";
}
$view->set('constructor_table_enabled', $form_enabled);
} else {
$constructor_table_body = "<span class='subtle'> This Class has an empty constructor," . ' press the button below to create an instance </span>';
$view->set('constructor_table_enabled', true);
}
$view->set('constructor_table_body', $constructor_table_body);
//Create table with instantiated objects of this class
$objects = $controller->get_objects($element_name);
if (!empty($objects) && count($objects) > 0) {
$objects_table = '<tr><th>Object ID</th><th>String Representation</th></tr>';
for ($i = 0; $i < count($objects); $i++) {
$objects_table .= '<tr><td>' . $i . '</td><td>' . serialize($objects[$i]) . '</td></tr>';
}
} else {
$objects_table = "<span class='subtle'> There are no created instances for this Class </span>";
}
$view->set('objects_table', $objects_table);
$element_names = $controller->get_element_names();
$messages = $controller->get_messages_clear();
$view->show($element_names, $messages);
} else {
$controller->set_message('Error showing Element: ' . $element_name . ' does not exist', true);
Uigu2_Controller::redirect('index');
}
} else {
$controller->set_message('Error showing Element: the Element name was not provided', true);
Uigu2_Controller::redirect('index');
}
}
