450 lines
13 KiB
PHP
450 lines
13 KiB
PHP
<?php
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/**
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* Scaffold.
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*
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* Automatic forms and actions generation for rapid web application development.
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*
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* CakePHP(tm) : Rapid Development Framework (http://cakephp.org)
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* Copyright (c) Cake Software Foundation, Inc. (http://cakefoundation.org)
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*
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* Licensed under The MIT License
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* For full copyright and license information, please see the LICENSE.txt
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* Redistributions of files must retain the above copyright notice.
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*
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* @copyright Copyright (c) Cake Software Foundation, Inc. (http://cakefoundation.org)
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* @link http://cakephp.org CakePHP(tm) Project
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* @package Cake.Controller
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* @since Cake v 0.10.0.1076
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* @license http://www.opensource.org/licenses/mit-license.php MIT License
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*/
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App::uses('Scaffold', 'View');
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/**
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* Scaffolding is a set of automatic actions for starting web development work faster.
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*
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* Scaffold inspects your database tables, and making educated guesses, sets up a
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* number of pages for each of your Models. These pages have data forms that work,
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* and afford the web developer an early look at the data, and the possibility to over-ride
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* scaffolded actions with custom-made ones.
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*
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* @package Cake.Controller
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*/
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class Scaffold {
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/**
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* Controller object
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*
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* @var Controller
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*/
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public $controller = null;
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/**
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* Name of the controller to scaffold
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*
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* @var string
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*/
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public $name = null;
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/**
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* Name of current model this view context is attached to
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*
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* @var string
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*/
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public $model = null;
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/**
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* Path to View.
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*
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* @var string
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*/
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public $viewPath;
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/**
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* Name of layout to use with this View.
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*
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* @var string
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*/
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public $layout = 'default';
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/**
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* Request object
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*
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* @var CakeRequest
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*/
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public $request;
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/**
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* Valid session.
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*
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* @var boolean
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*/
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protected $_validSession = null;
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/**
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* List of variables to collect from the associated controller
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*
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* @var array
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*/
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protected $_passedVars = array(
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'layout', 'name', 'viewPath', 'request'
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);
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/**
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* Title HTML element for current scaffolded view
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*
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* @var string
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*/
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public $scaffoldTitle = null;
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/**
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* Construct and set up given controller with given parameters.
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*
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* @param Controller $controller Controller to scaffold
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* @param CakeRequest $request Request parameters.
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* @throws MissingModelException
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*/
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public function __construct(Controller $controller, CakeRequest $request) {
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$this->controller = $controller;
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$count = count($this->_passedVars);
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for ($j = 0; $j < $count; $j++) {
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$var = $this->_passedVars[$j];
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$this->{$var} = $controller->{$var};
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}
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$this->redirect = array('action' => 'index');
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$this->modelClass = $controller->modelClass;
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$this->modelKey = $controller->modelKey;
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if (!is_object($this->controller->{$this->modelClass})) {
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throw new MissingModelException($this->modelClass);
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}
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$this->ScaffoldModel = $this->controller->{$this->modelClass};
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$this->scaffoldTitle = Inflector::humanize(Inflector::underscore($this->viewPath));
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$this->scaffoldActions = $controller->scaffold;
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$title = __d('cake', 'Scaffold :: ') . Inflector::humanize($request->action) . ' :: ' . $this->scaffoldTitle;
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$modelClass = $this->controller->modelClass;
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$primaryKey = $this->ScaffoldModel->primaryKey;
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$displayField = $this->ScaffoldModel->displayField;
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$singularVar = Inflector::variable($modelClass);
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$pluralVar = Inflector::variable($this->controller->name);
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$singularHumanName = Inflector::humanize(Inflector::underscore($modelClass));
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$pluralHumanName = Inflector::humanize(Inflector::underscore($this->controller->name));
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$scaffoldFields = array_keys($this->ScaffoldModel->schema());
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$associations = $this->_associations();
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$this->controller->set(compact(
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'modelClass', 'primaryKey', 'displayField', 'singularVar', 'pluralVar',
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'singularHumanName', 'pluralHumanName', 'scaffoldFields', 'associations'
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));
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$this->controller->set('title_for_layout', $title);
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if ($this->controller->viewClass) {
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$this->controller->viewClass = 'Scaffold';
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}
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$this->_validSession = (
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isset($this->controller->Session) && $this->controller->Session->valid()
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);
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$this->_scaffold($request);
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}
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/**
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* Renders a view action of scaffolded model.
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*
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* @param CakeRequest $request Request Object for scaffolding
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* @return mixed A rendered view of a row from Models database table
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* @throws NotFoundException
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*/
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protected function _scaffoldView(CakeRequest $request) {
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if ($this->controller->beforeScaffold('view')) {
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if (isset($request->params['pass'][0])) {
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$this->ScaffoldModel->id = $request->params['pass'][0];
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}
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if (!$this->ScaffoldModel->exists()) {
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throw new NotFoundException(__d('cake', 'Invalid %s', Inflector::humanize($this->modelKey)));
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}
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$this->ScaffoldModel->recursive = 1;
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$this->controller->request->data = $this->ScaffoldModel->read();
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$this->controller->set(
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Inflector::variable($this->controller->modelClass), $this->request->data
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);
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$this->controller->render($this->request['action'], $this->layout);
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} elseif ($this->controller->scaffoldError('view') === false) {
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return $this->_scaffoldError();
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}
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}
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/**
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* Renders index action of scaffolded model.
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*
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* @param array $params Parameters for scaffolding
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* @return mixed A rendered view listing rows from Models database table
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*/
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protected function _scaffoldIndex($params) {
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if ($this->controller->beforeScaffold('index')) {
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$this->ScaffoldModel->recursive = 0;
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$this->controller->set(
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Inflector::variable($this->controller->name), $this->controller->paginate()
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);
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$this->controller->render($this->request['action'], $this->layout);
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} elseif ($this->controller->scaffoldError('index') === false) {
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return $this->_scaffoldError();
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}
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}
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/**
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* Renders an add or edit action for scaffolded model.
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*
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* @param string $action Action (add or edit)
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* @return void
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*/
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protected function _scaffoldForm($action = 'edit') {
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$this->controller->viewVars['scaffoldFields'] = array_merge(
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$this->controller->viewVars['scaffoldFields'],
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array_keys($this->ScaffoldModel->hasAndBelongsToMany)
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);
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$this->controller->render($action, $this->layout);
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}
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/**
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* Saves or updates the scaffolded model.
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*
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* @param CakeRequest $request Request Object for scaffolding
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* @param string $action add or edit
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* @return mixed Success on save/update, add/edit form if data is empty or error if save or update fails
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* @throws NotFoundException
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*/
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protected function _scaffoldSave(CakeRequest $request, $action = 'edit') {
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$formAction = 'edit';
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$success = __d('cake', 'updated');
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if ($action === 'add') {
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$formAction = 'add';
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$success = __d('cake', 'saved');
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}
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if ($this->controller->beforeScaffold($action)) {
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if ($action === 'edit') {
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if (isset($request->params['pass'][0])) {
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$this->ScaffoldModel->id = $request['pass'][0];
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}
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if (!$this->ScaffoldModel->exists()) {
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throw new NotFoundException(__d('cake', 'Invalid %s', Inflector::humanize($this->modelKey)));
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}
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}
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if (!empty($request->data)) {
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if ($action === 'create') {
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$this->ScaffoldModel->create();
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}
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if ($this->ScaffoldModel->save($request->data)) {
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if ($this->controller->afterScaffoldSave($action)) {
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$message = __d('cake',
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'The %1$s has been %2$s',
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Inflector::humanize($this->modelKey),
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$success
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);
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return $this->_sendMessage($message);
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}
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return $this->controller->afterScaffoldSaveError($action);
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}
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if ($this->_validSession) {
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$this->controller->Session->setFlash(__d('cake', 'Please correct errors below.'));
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}
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}
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if (empty($request->data)) {
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if ($this->ScaffoldModel->id) {
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$this->controller->data = $request->data = $this->ScaffoldModel->read();
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} else {
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$this->controller->data = $request->data = $this->ScaffoldModel->create();
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}
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}
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foreach ($this->ScaffoldModel->belongsTo as $assocName => $assocData) {
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$varName = Inflector::variable(Inflector::pluralize(
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preg_replace('/(?:_id)$/', '', $assocData['foreignKey'])
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));
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$this->controller->set($varName, $this->ScaffoldModel->{$assocName}->find('list'));
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}
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foreach ($this->ScaffoldModel->hasAndBelongsToMany as $assocName => $assocData) {
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$varName = Inflector::variable(Inflector::pluralize($assocName));
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$this->controller->set($varName, $this->ScaffoldModel->{$assocName}->find('list'));
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}
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return $this->_scaffoldForm($formAction);
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} elseif ($this->controller->scaffoldError($action) === false) {
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return $this->_scaffoldError();
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}
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}
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/**
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* Performs a delete on given scaffolded Model.
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*
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* @param CakeRequest $request Request for scaffolding
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* @return mixed Success on delete, error if delete fails
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* @throws MethodNotAllowedException When HTTP method is not a DELETE
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* @throws NotFoundException When id being deleted does not exist.
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*/
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protected function _scaffoldDelete(CakeRequest $request) {
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if ($this->controller->beforeScaffold('delete')) {
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if (!$request->is('post')) {
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throw new MethodNotAllowedException();
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}
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$id = false;
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if (isset($request->params['pass'][0])) {
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$id = $request->params['pass'][0];
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}
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$this->ScaffoldModel->id = $id;
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if (!$this->ScaffoldModel->exists()) {
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throw new NotFoundException(__d('cake', 'Invalid %s', Inflector::humanize($this->modelClass)));
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}
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if ($this->ScaffoldModel->delete()) {
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$message = __d('cake', 'The %1$s with id: %2$s has been deleted.', Inflector::humanize($this->modelClass), $id);
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return $this->_sendMessage($message);
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}
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$message = __d('cake',
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'There was an error deleting the %1$s with id: %2$s',
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Inflector::humanize($this->modelClass),
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$id
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);
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return $this->_sendMessage($message);
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} elseif ($this->controller->scaffoldError('delete') === false) {
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return $this->_scaffoldError();
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}
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}
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/**
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* Sends a message to the user. Either uses Sessions or flash messages depending
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* on the availability of a session
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*
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* @param string $message Message to display
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* @return void
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*/
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protected function _sendMessage($message) {
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if ($this->_validSession) {
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$this->controller->Session->setFlash($message);
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return $this->controller->redirect($this->redirect);
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}
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$this->controller->flash($message, $this->redirect);
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}
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/**
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* Show a scaffold error
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*
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* @return mixed A rendered view showing the error
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*/
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protected function _scaffoldError() {
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return $this->controller->render('error', $this->layout);
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}
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/**
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* When methods are now present in a controller
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* scaffoldView is used to call default Scaffold methods if:
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* `public $scaffold;` is placed in the controller's class definition.
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*
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* @param CakeRequest $request Request object for scaffolding
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* @return void
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* @throws MissingActionException When methods are not scaffolded.
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* @throws MissingDatabaseException When the database connection is undefined.
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*/
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protected function _scaffold(CakeRequest $request) {
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$db = ConnectionManager::getDataSource($this->ScaffoldModel->useDbConfig);
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$prefixes = Configure::read('Routing.prefixes');
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$scaffoldPrefix = $this->scaffoldActions;
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if (isset($db)) {
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if (empty($this->scaffoldActions)) {
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$this->scaffoldActions = array(
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'index', 'list', 'view', 'add', 'create', 'edit', 'update', 'delete'
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);
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} elseif (!empty($prefixes) && in_array($scaffoldPrefix, $prefixes)) {
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$this->scaffoldActions = array(
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$scaffoldPrefix . '_index',
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$scaffoldPrefix . '_list',
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$scaffoldPrefix . '_view',
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$scaffoldPrefix . '_add',
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$scaffoldPrefix . '_create',
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$scaffoldPrefix . '_edit',
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$scaffoldPrefix . '_update',
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$scaffoldPrefix . '_delete'
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);
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}
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if (in_array($request->params['action'], $this->scaffoldActions)) {
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if (!empty($prefixes)) {
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$request->params['action'] = str_replace($scaffoldPrefix . '_', '', $request->params['action']);
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}
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switch ($request->params['action']) {
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case 'index':
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case 'list':
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$this->_scaffoldIndex($request);
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break;
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case 'view':
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$this->_scaffoldView($request);
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break;
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case 'add':
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case 'create':
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$this->_scaffoldSave($request, 'add');
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break;
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case 'edit':
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case 'update':
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$this->_scaffoldSave($request, 'edit');
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break;
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case 'delete':
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$this->_scaffoldDelete($request);
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break;
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}
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} else {
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throw new MissingActionException(array(
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'controller' => $this->controller->name,
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'action' => $request->action
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));
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}
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} else {
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throw new MissingDatabaseException(array('connection' => $this->ScaffoldModel->useDbConfig));
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}
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}
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/**
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* Returns associations for controllers models.
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*
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* @return array Associations for model
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*/
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protected function _associations() {
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$keys = array('belongsTo', 'hasOne', 'hasMany', 'hasAndBelongsToMany');
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$associations = array();
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foreach ($keys as $type) {
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foreach ($this->ScaffoldModel->{$type} as $assocKey => $assocData) {
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$associations[$type][$assocKey]['primaryKey'] =
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$this->ScaffoldModel->{$assocKey}->primaryKey;
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$associations[$type][$assocKey]['displayField'] =
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$this->ScaffoldModel->{$assocKey}->displayField;
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$associations[$type][$assocKey]['foreignKey'] =
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$assocData['foreignKey'];
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list($plugin, $model) = pluginSplit($assocData['className']);
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if ($plugin) {
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$plugin = Inflector::underscore($plugin);
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}
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$associations[$type][$assocKey]['plugin'] = $plugin;
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$associations[$type][$assocKey]['controller'] =
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Inflector::pluralize(Inflector::underscore($model));
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if ($type === 'hasAndBelongsToMany') {
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$associations[$type][$assocKey]['with'] = $assocData['with'];
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}
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}
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}
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return $associations;
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}
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}
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