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<?php
/**
* Scaffold.
*
* Automatic forms and actions generation for rapid web application development.
*
* PHP versions 4 and 5
*
* CakePHP(tm) : Rapid Development Framework (http://cakephp.org)
* Copyright 2005-2009, Cake Software Foundation, Inc. (http://cakefoundation.org)
*
* Licensed under The MIT License
* Redistributions of files must retain the above copyright notice.
*
* @copyright Copyright 2005-2009, Cake Software Foundation, Inc. (http://cakefoundation.org)
* @link http://cakephp.org
* @package cake
* @subpackage cake.cake.libs.controller
* @since Cake v 0.10.0.1076
* @license MIT License (http://www.opensource.org/licenses/mit-license.php)
*/
/**
* Scaffolding is a set of automatic actions for starting web development work faster.
*
* Scaffold inspects your database tables, and making educated guesses, sets up a
* number of pages for each of your Models. These pages have data forms that work,
* and afford the web developer an early look at the data, and the possibility to over-ride
* scaffolded actions with custom-made ones.
*
* @package cake
* @subpackage cake.cake.libs.controller
*/
class Scaffold extends Object {
/**
* Controller object
*
* @var Controller
* @access public
*/
var $controller = null;
/**
* Name of the controller to scaffold
*
* @var string
* @access public
*/
var $name = null;
/**
* Action to be performed.
*
* @var string
* @access public
*/
var $action = null;
/**
* Name of current model this view context is attached to
*
* @var string
* @access public
*/
var $model = null;
/**
* Path to View.
*
* @var string
* @access public
*/
var $viewPath;
/**
* Path parts for creating links in views.
*
* @var string Base URL
* @access public
*/
var $base = null;
/**
* Name of layout to use with this View.
*
* @var string
* @access public
*/
var $layout = 'default';
/**
* Array of parameter data
*
* @var array
* @access public
*/
var $params;
/**
* File extension. Defaults to Cake's template ".ctp".
*
* @var array
* @access public
*/
var $ext = '.ctp';
/**
* Sub-directory for this view file.
*
* @var string
* @access public
*/
var $subDir = null;
/**
* Plugin name.
*
* @var string
* @access public
*/
var $plugin = null;
/**
* valid session.
*
* @var boolean
* @access public
*/
var $_validSession = null;
/**
* List of variables to collect from the associated controller
*
* @var array
* @access private
*/
var $__passedVars = array(
'action', 'base', 'webroot', 'layout', 'name',
'viewPath', 'ext', 'params', 'data', 'plugin', 'cacheAction'
);
/**
* Title HTML element for current scaffolded view
*
* @var string
* @access public
*/
var $scaffoldTitle = null;
/**
* Construct and set up given controller with given parameters.
*
* @param string $controller_class Name of controller
* @param array $params Parameters for scaffolding
*/
function __construct(&$controller, $params) {
$this->controller =& $controller;
$count = count($this->__passedVars);
for ($j = 0; $j < $count; $j++) {
$var = $this->__passedVars[$j];
$this->{$var} = $controller->{$var};
}
$this->redirect = array('action'=> 'index');
$this->modelClass = $controller->modelClass;
$this->modelKey = $controller->modelKey;
if (!is_object($this->controller->{$this->modelClass})) {
return $this->cakeError('missingModel', array(array(
'className' => $this->modelClass, 'webroot' => '', 'base' => $controller->base
)));
}
$this->ScaffoldModel =& $this->controller->{$this->modelClass};
$this->scaffoldTitle = Inflector::humanize($this->viewPath);
$this->scaffoldActions = $controller->scaffold;
$this->controller->pageTitle = __('Scaffold :: ', true)
. Inflector::humanize($this->action) . ' :: ' . $this->scaffoldTitle;
$modelClass = $this->controller->modelClass;
$primaryKey = $this->ScaffoldModel->primaryKey;
$displayField = $this->ScaffoldModel->displayField;
$singularVar = Inflector::variable($modelClass);
$pluralVar = Inflector::variable($this->controller->name);
$singularHumanName = Inflector::humanize(Inflector::underscore($modelClass));
$pluralHumanName = Inflector::humanize(Inflector::underscore($this->controller->name));
$scaffoldFields = array_keys($this->ScaffoldModel->schema());
$associations = $this->__associations();
$this->controller->set(compact(
'modelClass', 'primaryKey', 'displayField', 'singularVar', 'pluralVar',
'singularHumanName', 'pluralHumanName', 'scaffoldFields', 'associations'
));
if ($this->controller->view && $this->controller->view !== 'Theme') {
$this->controller->view = 'scaffold';
}
$this->_validSession = (
isset($this->controller->Session) && $this->controller->Session->valid() != false
);
$this->__scaffold($params);
}
/**
* Outputs the content of a scaffold method passing it through the Controller::afterFilter()
*
* @return void
* @access protected
*/
function _output() {
$this->controller->afterFilter();
echo($this->controller->output);
}
/**
* Renders a view action of scaffolded model.
*
* @param array $params Parameters for scaffolding
* @return mixed A rendered view of a row from Models database table
* @access private
*/
function __scaffoldView($params) {
if ($this->controller->_beforeScaffold('view')) {
$message = sprintf(__("No id set for %s::view()", true), Inflector::humanize($this->modelKey));
if (isset($params['pass'][0])) {
$this->ScaffoldModel->id = $params['pass'][0];
} elseif ($this->_validSession) {
$this->controller->Session->setFlash($message);
$this->controller->redirect($this->redirect);
} else {
return $this->controller->flash($message, '/' . Inflector::underscore($this->controller->viewPath));
}
$this->ScaffoldModel->recursive = 1;
$this->controller->data = $this->ScaffoldModel->read();
$this->controller->set(
Inflector::variable($this->controller->modelClass), $this->controller->data
);
$this->controller->render($this->action, $this->layout);
$this->_output();
} elseif ($this->controller->_scaffoldError('view') === false) {
return $this->__scaffoldError();
}
}
/**
* Renders index action of scaffolded model.
*
* @param array $params Parameters for scaffolding
* @return mixed A rendered view listing rows from Models database table
* @access private
*/
function __scaffoldIndex($params) {
if ($this->controller->_beforeScaffold('index')) {
$this->ScaffoldModel->recursive = 0;
$this->controller->set(
Inflector::variable($this->controller->name), $this->controller->paginate()
);
$this->controller->render($this->action, $this->layout);
$this->_output();
} elseif ($this->controller->_scaffoldError('index') === false) {
return $this->__scaffoldError();
}
}
/**
* Renders an add or edit action for scaffolded model.
*
* @param string $action Action (add or edit)
* @return mixed A rendered view with a form to edit or add a record in the Models database table
* @access private
*/
function __scaffoldForm($action = 'edit') {
$this->controller->viewVars['scaffoldFields'] = array_merge(
$this->controller->viewVars['scaffoldFields'],
array_keys($this->ScaffoldModel->hasAndBelongsToMany)
);
$this->controller->render($action, $this->layout);
$this->_output();
}
/**
* Saves or updates the scaffolded model.
*
* @param array $params Parameters for scaffolding
* @param string $action add or edt
* @return mixed Success on save/update, add/edit form if data is empty or error if save or update fails
* @access private
*/
function __scaffoldSave($params = array(), $action = 'edit') {
$formAction = 'edit';
$success = __('updated', true);
if ($action === 'add') {
$formAction = 'add';
$success = __('saved', true);
}
if ($this->controller->_beforeScaffold($action)) {
if ($action == 'edit') {
if (isset($params['pass'][0])) {
$this->ScaffoldModel->id = $params['pass'][0];
}
if (!$this->ScaffoldModel->exists()) {
$message = sprintf(__("Invalid id for %s::edit()", true), Inflector::humanize($this->modelKey));
if ($this->_validSession) {
$this->controller->Session->setFlash($message);
$this->controller->redirect($this->redirect);
} else {
$this->controller->flash($message, $this->redirect);
$this->_output();
}
}
}
if (!empty($this->controller->data)) {
if ($action == 'create') {
$this->ScaffoldModel->create();
}
if ($this->ScaffoldModel->save($this->controller->data)) {
if ($this->controller->_afterScaffoldSave($action)) {
$message = sprintf(__('The %1$s has been %2$s', true),
Inflector::humanize($this->modelKey),
$success
);
if ($this->_validSession) {
$this->controller->Session->setFlash($message);
$this->controller->redirect($this->redirect);
} else {
$this->controller->flash($message, $this->redirect);
return $this->_output();
}
} else {
return $this->controller->_afterScaffoldSaveError($action);
}
} else {
if ($this->_validSession) {
$this->controller->Session->setFlash(
__('Please correct errors below.', true
));
}
}
}
if (empty($this->controller->data)) {
if ($this->ScaffoldModel->id) {
$this->controller->data = $this->ScaffoldModel->read();
} else {
$this->controller->data = $this->ScaffoldModel->create();
}
}
foreach ($this->ScaffoldModel->belongsTo as $assocName => $assocData) {
$varName = Inflector::variable(Inflector::pluralize(
preg_replace('/(?:_id)$/', '', $assocData['foreignKey'])
));
$this->controller->set($varName, $this->ScaffoldModel->{$assocName}->find('list'));
}
foreach ($this->ScaffoldModel->hasAndBelongsToMany as $assocName => $assocData) {
$varName = Inflector::variable(Inflector::pluralize($assocName));
$this->controller->set($varName, $this->ScaffoldModel->{$assocName}->find('list'));
}
return $this->__scaffoldForm($formAction);
} elseif ($this->controller->_scaffoldError($action) === false) {
return $this->__scaffoldError();
}
}
/**
* Performs a delete on given scaffolded Model.
*
* @param array $params Parameters for scaffolding
* @return mixed Success on delete, error if delete fails
* @access private
*/
function __scaffoldDelete($params = array()) {
if ($this->controller->_beforeScaffold('delete')) {
$message = sprintf(__("No id set for %s::delete()", true), Inflector::humanize($this->modelKey));
if (isset($params['pass'][0])) {
$id = $params['pass'][0];
} elseif ($this->_validSession) {
$this->controller->Session->setFlash($message);
$this->controller->redirect($this->redirect);
} else {
$this->controller->flash($message, '/' . Inflector::underscore($this->controller->viewPath));
return $this->_output();
}
if ($this->ScaffoldModel->delete($id)) {
$message = sprintf(
__('The %1$s with id: %2$d has been deleted.', true),
Inflector::humanize($this->modelClass), $id
);
if ($this->_validSession) {
$this->controller->Session->setFlash($message);
$this->controller->redirect($this->redirect);
} else {
$this->controller->flash($message, '/' . $this->viewPath);
return $this->_output();
}
} else {
$message = sprintf(
__('There was an error deleting the %1$s with id: %2$d', true),
Inflector::humanize($this->modelClass), $id
);
if ($this->_validSession) {
$this->controller->Session->setFlash($message);
$this->controller->redirect($this->redirect);
} else {
$this->controller->flash($message, '/' . $this->viewPath);
return $this->_output();
}
}
} elseif ($this->controller->_scaffoldError('delete') === false) {
return $this->__scaffoldError();
}
}
/**
* Show a scaffold error
*
* @return mixed A rendered view showing the error
* @access private
*/
function __scaffoldError() {
return $this->controller->render('error', $this->layout);
$this->_output();
}
/**
* When methods are now present in a controller
* scaffoldView is used to call default Scaffold methods if:
* <code>
* var $scaffold;
* </code>
* is placed in the controller's class definition.
*
* @param array $params Parameters for scaffolding
* @return mixed A rendered view of scaffold action, or showing the error
* @access private
*/
function __scaffold($params) {
$db = &ConnectionManager::getDataSource($this->ScaffoldModel->useDbConfig);
$admin = Configure::read('Routing.admin');
if (isset($db)) {
if (empty($this->scaffoldActions)) {
$this->scaffoldActions = array(
'index', 'list', 'view', 'add', 'create', 'edit', 'update', 'delete'
);
} elseif (!empty($admin) && $this->scaffoldActions === $admin) {
$this->scaffoldActions = array(
$admin .'_index', $admin .'_list', $admin .'_view', $admin .'_add',
$admin .'_create', $admin .'_edit', $admin .'_update', $admin .'_delete'
);
}
if (in_array($params['action'], $this->scaffoldActions)) {
if (!empty($admin)) {
$params['action'] = str_replace($admin . '_', '', $params['action']);
}
switch ($params['action']) {
case 'index':
$this->__scaffoldIndex($params);
break;
case 'view':
$this->__scaffoldView($params);
break;
case 'list':
$this->__scaffoldIndex($params);
break;
case 'add':
$this->__scaffoldSave($params, 'add');
break;
case 'edit':
$this->__scaffoldSave($params, 'edit');
break;
case 'create':
$this->__scaffoldSave($params, 'add');
break;
case 'update':
$this->__scaffoldSave($params, 'edit');
break;
case 'delete':
$this->__scaffoldDelete($params);
break;
}
} else {
return $this->cakeError('missingAction', array(array(
'className' => $this->controller->name . "Controller",
'base' => $this->controller->base,
'action' => $this->action,
'webroot' => $this->controller->webroot
)));
}
} else {
return $this->cakeError('missingDatabase', array(array(
'webroot' => $this->controller->webroot
)));
}
}
/**
* Returns associations for controllers models.
*
* @return array Associations for model
* @access private
*/
function __associations() {
$keys = array('belongsTo', 'hasOne', 'hasMany', 'hasAndBelongsToMany');
$associations = array();
foreach ($keys as $key => $type) {
foreach ($this->ScaffoldModel->{$type} as $assocKey => $assocData) {
$associations[$type][$assocKey]['primaryKey'] =
$this->ScaffoldModel->{$assocKey}->primaryKey;
$associations[$type][$assocKey]['displayField'] =
$this->ScaffoldModel->{$assocKey}->displayField;
$associations[$type][$assocKey]['foreignKey'] =
$assocData['foreignKey'];
$associations[$type][$assocKey]['controller'] =
Inflector::pluralize(Inflector::underscore($assocData['className']));
}
}
return $associations;
}
}
/**
* Scaffold View.
*
* @package cake
* @subpackage cake.cake.libs.controller
*/
if (!class_exists('ThemeView')) {
App::import('View', 'Theme');
}
class ScaffoldView extends ThemeView {
/**
* Override _getViewFileName
*
* @return string action
* @access protected
*/
function _getViewFileName($name = null) {
if ($name === null) {
$name = $this->action;
}
$name = Inflector::underscore($name);
$admin = Configure::read('Routing.admin');
if (!empty($admin) && strpos($name, $admin . '_') !== false) {
$name = substr($name, strlen($admin) + 1);
}
if ($name === 'add') {
$name = 'edit';
}
$scaffoldAction = 'scaffold.' . $name;
if (!is_null($this->subDir)) {
$subDir = strtolower($this->subDir) . DS;
} else {
$subDir = null;
}
$names[] = $this->viewPath . DS . $subDir . $scaffoldAction;
$names[] = 'scaffolds' . DS . $subDir . $name;
$paths = $this->_paths($this->plugin);
$exts = array($this->ext, '.ctp', '.thtml');
foreach ($paths as $path) {
foreach ($names as $name) {
foreach ($exts as $ext) {
if (file_exists($path . $name . $ext)) {
return $path . $name . $ext;
}
}
}
}
if ($name === 'scaffolds' . DS . $subDir . 'error') {
return LIBS . 'view' . DS . 'errors' . DS . 'scaffold_error.ctp';
}
return $this->_missingView($paths[0] . $name . $this->ext, 'missingView');
}
}
?>
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