File views/smarty.php | BEdita API doc

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<?php
/*-----8<--------------------------------------------------------------------
 *
 * BEdita - a semantic content management framework
 *
 * Copyright 2008 ChannelWeb Srl, Chialab Srl
 *
 * This file is part of BEdita: you can redistribute it and/or modify
 * it under the terms of the GNU Lesser General Public License as published
 * by the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 * BEdita is distributed WITHOUT ANY WARRANTY; without even the implied
 * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
 * See the GNU Lesser General Public License for more details.
 * You should have received a copy of the GNU Lesser General Public License
 * version 3 along with BEdita (see LICENSE.LGPL).
 * If not, see <http://gnu.org/licenses/lgpl-3.0.html>.
 *
 *------------------------------------------------------------------->8-----
 */

/**
 * SmartyView
 *
 *
 * @version         $Revision$
 * @modifiedby      $LastChangedBy$
 * @lastmodified    $LastChangedDate$
 *
 * $Id$
 *  */
class SmartyView extends View {

    private $template_dir;
    private $layout_dir;

    private $_smarty = null;

    function __construct (&$controller) {
        parent::__construct($controller);

        $this->ext = ".tpl";

        $this->template_dir = array(
            VIEWS . $this->viewPath . DS . $this->subDir,
            VIEWS . $this->viewPath,
            VIEWS
        );

        $this->layout_dir = array(
            LAYOUTS . $this->subDir,
            VIEWS
        ) ;
        
        App::import('Vendor', 'SmartyClass', array('file' => 'smarty'.DS.'libs'.DS.'Smarty.class.php'));
        $this->_smarty = new Smarty();

        $this->_smarty->setCompileDir(TMP . 'smarty' . DS . 'compile');
        $this->_smarty->setCacheDir(TMP . 'smarty' . DS . 'cache' . DS);
        $this->_smarty->setConfigDir(ROOT . APP_DIR . DS . 'config' . DS . 'smarty' . DS);
        $this->_smarty->compile_id  = $controller->name ;

        // add smarty plugins dir
        $this->_smarty->addPluginsDir(APP . 'vendors' . DS . '_smartyPlugins');
        if(!BACKEND_APP) {
            $this->_smarty->addPluginsDir(BEDITA_CORE_PATH . DS . 'vendors' . DS . '_smartyPlugins');
        }
    }

    // Add by BEdita team - Giangi
    // Change template dir
    function setTemplateDir($path = VIEW) {
        $old = $this->template_dir ;
        $this->template_dir  = $path ;
        return $old ;
    }

    function getTemplateDir() {
        return $this->template_dir ;
    }


    function _render($___viewFn, $___data_for_view, $loadHelpers = true, $cached = false) {
        // used to restore smarty vars
        $prevSmartyVars = $this->_smarty->getTemplateVars();

        // clears all assigned variables to the smarty class
        $this->_smarty->clearAllAssign();

        $loadedHelpers = array();
        if ($this->helpers != false && $loadHelpers === true) {

            $loadedHelpers = $this->_loadHelpers($loadedHelpers, $this->helpers);
            $helpers = array_keys($loadedHelpers);
            $helperNames = array_map(array('Inflector', 'variable'), $helpers);

            for ($i = count($helpers) - 1; $i >= 0; $i--) {
                $name = $helperNames[$i];
                $helper =& $loadedHelpers[$helpers[$i]];

                if (!isset($___dataForView[$name])) {
                    ${$name} =& $helper;
                }
                $this->loaded[$helperNames[$i]] =& $helper;
                $this->{$helpers[$i]} =& $helper;
                $this->_smarty->assignByRef($helperNames[$i], ${$helperNames[$i]});
            }
            $this->_triggerHelpers('beforeRender');
            unset($name, $loadedHelpers, $helpers, $i, $helperNames, $helper);
        }

        // if this is a layout call or a template call and change the template dir accordingly
        if(isset($___data_for_view['content_for_layout'])) {
            $this->_smarty->setTemplateDir($this->layout_dir);
        } else {
            $this->_smarty->setTemplateDir($this->template_dir);
        }

        // load the data variables, being set by controller
        foreach(array_keys($___data_for_view) as $k) {
            if (!is_object($k)) {
                $this->_smarty->assignByRef($k, $___data_for_view[$k]);
            }
        }
        $this->_smarty->assignByRef("view", $this);

        $out = $this->_smarty->fetch($___viewFn);

        if ($loadHelpers === true) {
            $this->_triggerHelpers('afterRender');
        }

        $caching = (
            isset($this->loaded['cache']) &&
            (($this->cacheAction != false)) && (Configure::read('Cache.check') === true)
        );

        if ($caching) {
            if (is_a($this->loaded['cache'], 'CacheHelper')) {
                $cache =& $this->loaded['cache'];
                $cache->base = $this->base;
                $cache->here = $this->here;
                $cache->helpers = $this->helpers;
                $cache->action = $this->action;
                $cache->controllerName = $this->name;
                $cache->layout  = $this->layout;
                $cache->cacheAction = $this->cacheAction;
                $cache->cache($___viewFn, $out, $cached);
            }
        }

        // unset local var (like $params in View::element)
        foreach ($___data_for_view as $key => $value) {
            if (!array_key_exists($key, $prevSmartyVars) && !array_key_exists($key, $this->loaded)) {
                $this->_smarty->clearAssign($key);
            }
        }

        // restore smarty vars setted before clear_all_assign called
        if (!empty($prevSmartyVars)) {
            foreach ($prevSmartyVars as $k => $v) {
                if ($this->_smarty->getTemplateVars($k) === null) {
                    $this->_smarty->assignByRef($k, $prevSmartyVars[$k]);
                }
            }
        }

        // force smarty template dir to template_dir
        $this->_smarty->setTemplateDir($this->template_dir);

        return $out;
    }


    /**
     * Override View::set to set Smarty var too
     *
     * @param mixed $one see View::set (cake/libs/view/view.php)
     * @param mixed $two see View::set
     * @return unknow
     */
    public function set($one, $two = null) {
        $data = null;
        if (is_array($one)) {
            if (is_array($two)) {
                $data = array_combine($one, $two);
            } else {
                $data = $one;
            }
        } else {
            $data = array($one => $two);
        }
        if ($data == null) {
            return false;
        }
        $this->viewVars = $data + $this->viewVars;

        foreach ($data as $name => $value) {
            $this->_smarty->assignByRef($name, $value);
        }
    }

    function & getSmarty() {
        return $this->_smarty;
    }

    /**
    * Get the extensions that view files can use.
    *
    * @return array Array of extensions view files use.
    * @access protected
    */
    function _getExtensions() {
        $exts = array($this->ext);
        if ($this->ext !== '.tpl') {
            array_push($exts, '.tpl');
        }
        return $exts;
    }

}
?>

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