You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
374 lines
11 KiB
374 lines
11 KiB
<?php
|
|
|
|
/*
|
|
* This file is part of Twig.
|
|
*
|
|
* (c) 2009 Fabien Potencier
|
|
* (c) 2009 Armin Ronacher
|
|
*
|
|
* For the full copyright and license information, please view the LICENSE
|
|
* file that was distributed with this source code.
|
|
*/
|
|
|
|
/**
|
|
* Default base class for compiled templates.
|
|
*
|
|
* @package twig
|
|
* @author Fabien Potencier <[email protected]>
|
|
*/
|
|
abstract class Twig_Template implements Twig_TemplateInterface
|
|
{
|
|
static protected $cache = array();
|
|
|
|
protected $parents;
|
|
protected $env;
|
|
protected $blocks;
|
|
|
|
/**
|
|
* Constructor.
|
|
*
|
|
* @param Twig_Environment $env A Twig_Environment instance
|
|
*/
|
|
public function __construct(Twig_Environment $env)
|
|
{
|
|
$this->env = $env;
|
|
$this->blocks = array();
|
|
}
|
|
|
|
/**
|
|
* Returns the template name.
|
|
*
|
|
* @return string The template name
|
|
*/
|
|
abstract public function getTemplateName();
|
|
|
|
/**
|
|
* Returns the Twig environment.
|
|
*
|
|
* @return Twig_Environment The Twig environment
|
|
*/
|
|
public function getEnvironment()
|
|
{
|
|
return $this->env;
|
|
}
|
|
|
|
/**
|
|
* Returns the parent template.
|
|
*
|
|
* @return Twig_TemplateInterface|false The parent template or false if there is no parent
|
|
*/
|
|
public function getParent(array $context)
|
|
{
|
|
$parent = $this->doGetParent($context);
|
|
if (false === $parent) {
|
|
return false;
|
|
} elseif ($parent instanceof Twig_Template) {
|
|
$name = $parent->getTemplateName();
|
|
$this->parents[$name] = $parent;
|
|
$parent = $name;
|
|
} elseif (!isset($this->parents[$parent])) {
|
|
$this->parents[$parent] = $this->env->loadTemplate($parent);
|
|
}
|
|
|
|
return $this->parents[$parent];
|
|
}
|
|
|
|
abstract protected function doGetParent(array $context);
|
|
|
|
/**
|
|
* Displays a parent block.
|
|
*
|
|
* @param string $name The block name to display from the parent
|
|
* @param array $context The context
|
|
* @param array $blocks The current set of blocks
|
|
*/
|
|
public function displayParentBlock($name, array $context, array $blocks = array())
|
|
{
|
|
if (false !== $parent = $this->getParent($context)) {
|
|
$parent->displayBlock($name, $context, $blocks);
|
|
} else {
|
|
throw new Twig_Error_Runtime('This template has no parent', -1, $this->getTemplateName());
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Displays a block.
|
|
*
|
|
* @param string $name The block name to display
|
|
* @param array $context The context
|
|
* @param array $blocks The current set of blocks
|
|
*/
|
|
public function displayBlock($name, array $context, array $blocks = array())
|
|
{
|
|
if (isset($blocks[$name])) {
|
|
$b = $blocks;
|
|
unset($b[$name]);
|
|
call_user_func($blocks[$name], $context, $b);
|
|
} elseif (isset($this->blocks[$name])) {
|
|
call_user_func($this->blocks[$name], $context, $blocks);
|
|
} elseif (false !== $parent = $this->getParent($context)) {
|
|
$parent->displayBlock($name, $context, array_merge($this->blocks, $blocks));
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Renders a parent block.
|
|
*
|
|
* @param string $name The block name to render from the parent
|
|
* @param array $context The context
|
|
* @param array $blocks The current set of blocks
|
|
*
|
|
* @return string The rendered block
|
|
*/
|
|
public function renderParentBlock($name, array $context, array $blocks = array())
|
|
{
|
|
ob_start();
|
|
$this->displayParentBlock($name, $context, $blocks);
|
|
|
|
return ob_get_clean();
|
|
}
|
|
|
|
/**
|
|
* Renders a block.
|
|
*
|
|
* @param string $name The block name to render
|
|
* @param array $context The context
|
|
* @param array $blocks The current set of blocks
|
|
*
|
|
* @return string The rendered block
|
|
*/
|
|
public function renderBlock($name, array $context, array $blocks = array())
|
|
{
|
|
ob_start();
|
|
$this->displayBlock($name, $context, $blocks);
|
|
|
|
return ob_get_clean();
|
|
}
|
|
|
|
/**
|
|
* Returns whether a block exists or not.
|
|
*
|
|
* @param string $name The block name
|
|
*
|
|
* @return Boolean true if the block exists, false otherwise
|
|
*/
|
|
public function hasBlock($name)
|
|
{
|
|
return isset($this->blocks[$name]);
|
|
}
|
|
|
|
/**
|
|
* Returns all block names.
|
|
*
|
|
* @return array An array of block names
|
|
*/
|
|
public function getBlockNames()
|
|
{
|
|
return array_keys($this->blocks);
|
|
}
|
|
|
|
/**
|
|
* Returns all blocks.
|
|
*
|
|
* @return array An array of blocks
|
|
*/
|
|
public function getBlocks()
|
|
{
|
|
return $this->blocks;
|
|
}
|
|
|
|
/**
|
|
* Displays the template with the given context.
|
|
*
|
|
* @param array $context An array of parameters to pass to the template
|
|
* @param array $blocks An array of blocks to pass to the template
|
|
*/
|
|
public function display(array $context, array $blocks = array())
|
|
{
|
|
try {
|
|
$this->doDisplay($context, $blocks);
|
|
} catch (Twig_Error $e) {
|
|
throw $e;
|
|
} catch (Exception $e) {
|
|
throw new Twig_Error_Runtime(sprintf('An exception has been thrown during the rendering of a template ("%s").', $e->getMessage()), -1, null, $e);
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Renders the template with the given context and returns it as string.
|
|
*
|
|
* @param array $context An array of parameters to pass to the template
|
|
*
|
|
* @return string The rendered template
|
|
*/
|
|
public function render(array $context)
|
|
{
|
|
$level = ob_get_level();
|
|
ob_start();
|
|
try {
|
|
$this->display($context);
|
|
} catch (Exception $e) {
|
|
while (ob_get_level() > $level) {
|
|
ob_end_clean();
|
|
}
|
|
|
|
throw $e;
|
|
}
|
|
|
|
return ob_get_clean();
|
|
}
|
|
|
|
/**
|
|
* Auto-generated method to display the template with the given context.
|
|
*
|
|
* @param array $context An array of parameters to pass to the template
|
|
* @param array $blocks An array of blocks to pass to the template
|
|
*/
|
|
abstract protected function doDisplay(array $context, array $blocks = array());
|
|
|
|
/**
|
|
* Returns a variable from the context.
|
|
*
|
|
* @param array $context The context
|
|
* @param string $item The variable to return from the context
|
|
*
|
|
* @return The content of the context variable
|
|
*
|
|
* @throws Twig_Error_Runtime if the variable does not exist and Twig is running in strict mode
|
|
*/
|
|
protected function getContext($context, $item)
|
|
{
|
|
if (!array_key_exists($item, $context)) {
|
|
if (!$this->env->isStrictVariables()) {
|
|
return null;
|
|
}
|
|
|
|
throw new Twig_Error_Runtime(sprintf('Variable "%s" does not exist', $item));
|
|
}
|
|
|
|
return $context[$item];
|
|
}
|
|
|
|
/**
|
|
* Returns the attribute value for a given array/object.
|
|
*
|
|
* @param mixed $object The object or array from where to get the item
|
|
* @param mixed $item The item to get from the array or object
|
|
* @param array $arguments An array of arguments to pass if the item is an object method
|
|
* @param string $type The type of attribute (@see Twig_TemplateInterface)
|
|
* @param Boolean $isDefinedTest Whether this is only a defined check
|
|
*/
|
|
protected function getAttribute($object, $item, array $arguments = array(), $type = Twig_TemplateInterface::ANY_CALL, $isDefinedTest = false)
|
|
{
|
|
// array
|
|
if (Twig_TemplateInterface::METHOD_CALL !== $type) {
|
|
if ((is_array($object) && array_key_exists($item, $object))
|
|
|| ($object instanceof ArrayAccess && isset($object[$item]))
|
|
) {
|
|
if ($isDefinedTest) {
|
|
return true;
|
|
}
|
|
|
|
return $object[$item];
|
|
}
|
|
|
|
if (Twig_TemplateInterface::ARRAY_CALL === $type) {
|
|
if ($isDefinedTest) {
|
|
return false;
|
|
}
|
|
|
|
if (!$this->env->isStrictVariables()) {
|
|
return null;
|
|
}
|
|
|
|
if (is_object($object)) {
|
|
throw new Twig_Error_Runtime(sprintf('Key "%s" in object (with ArrayAccess) of type "%s" does not exist', $item, get_class($object)));
|
|
// array
|
|
} else {
|
|
throw new Twig_Error_Runtime(sprintf('Key "%s" for array with keys "%s" does not exist', $item, implode(', ', array_keys($object))));
|
|
}
|
|
}
|
|
}
|
|
|
|
if (!is_object($object)) {
|
|
if ($isDefinedTest) {
|
|
return false;
|
|
}
|
|
|
|
if (!$this->env->isStrictVariables()) {
|
|
return null;
|
|
}
|
|
|
|
throw new Twig_Error_Runtime(sprintf('Item "%s" for "%s" does not exist', $item, $object));
|
|
}
|
|
|
|
// get some information about the object
|
|
$class = get_class($object);
|
|
if (!isset(self::$cache[$class])) {
|
|
$r = new ReflectionClass($class);
|
|
self::$cache[$class] = array('methods' => array(), 'properties' => array());
|
|
foreach ($r->getMethods(ReflectionMethod::IS_PUBLIC) as $method) {
|
|
self::$cache[$class]['methods'][strtolower($method->getName())] = true;
|
|
}
|
|
|
|
foreach ($r->getProperties(ReflectionProperty::IS_PUBLIC) as $property) {
|
|
self::$cache[$class]['properties'][$property->getName()] = true;
|
|
}
|
|
}
|
|
|
|
// object property
|
|
if (Twig_TemplateInterface::METHOD_CALL !== $type) {
|
|
if (isset(self::$cache[$class]['properties'][$item])
|
|
|| isset($object->$item) || array_key_exists($item, $object)
|
|
) {
|
|
if ($isDefinedTest) {
|
|
return true;
|
|
}
|
|
|
|
if ($this->env->hasExtension('sandbox')) {
|
|
$this->env->getExtension('sandbox')->checkPropertyAllowed($object, $item);
|
|
}
|
|
|
|
return $object->$item;
|
|
}
|
|
}
|
|
|
|
// object method
|
|
$lcItem = strtolower($item);
|
|
if (isset(self::$cache[$class]['methods'][$lcItem])) {
|
|
$method = $item;
|
|
} elseif (isset(self::$cache[$class]['methods']['get'.$lcItem])) {
|
|
$method = 'get'.$item;
|
|
} elseif (isset(self::$cache[$class]['methods']['is'.$lcItem])) {
|
|
$method = 'is'.$item;
|
|
} elseif (isset(self::$cache[$class]['methods']['__call'])) {
|
|
$method = $item;
|
|
} else {
|
|
if ($isDefinedTest) {
|
|
return false;
|
|
}
|
|
|
|
if (!$this->env->isStrictVariables()) {
|
|
return null;
|
|
}
|
|
|
|
throw new Twig_Error_Runtime(sprintf('Method "%s" for object "%s" does not exist', $item, get_class($object)));
|
|
}
|
|
|
|
if ($isDefinedTest) {
|
|
return true;
|
|
}
|
|
|
|
if ($this->env->hasExtension('sandbox')) {
|
|
$this->env->getExtension('sandbox')->checkMethodAllowed($object, $method);
|
|
}
|
|
|
|
$ret = call_user_func_array(array($object, $method), $arguments);
|
|
|
|
if ($object instanceof Twig_TemplateInterface) {
|
|
return new Twig_Markup($ret);
|
|
}
|
|
|
|
return $ret;
|
|
}
|
|
}
|
|
|