/
TheliaLoop.php
461 lines (379 loc) · 15.4 KB
/
TheliaLoop.php
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<?php
/*************************************************************************************/
/* This file is part of the Thelia package. */
/* */
/* Copyright (c) OpenStudio */
/* email : dev@thelia.net */
/* web : http://www.thelia.net */
/* */
/* For the full copyright and license information, please view the LICENSE.txt */
/* file that was distributed with this source code. */
/*************************************************************************************/
namespace TheliaSmarty\Template\Plugins;
use Propel\Runtime\Util\PropelModelPager;
use Symfony\Component\DependencyInjection\ContainerInterface;
use Symfony\Component\EventDispatcher\EventDispatcherInterface;
use Thelia\Core\HttpFoundation\Request;
use Thelia\Core\Security\SecurityContext;
use Thelia\Core\Template\Element\BaseLoop;
use Thelia\Core\Template\Element\LoopResult;
use TheliaSmarty\Template\AbstractSmartyPlugin;
use TheliaSmarty\Template\SmartyPluginDescriptor;
use Thelia\Core\Template\Element\Exception\ElementNotFoundException;
use Thelia\Core\Template\Element\Exception\InvalidElementException;
use Thelia\Core\Translation\Translator;
class TheliaLoop extends AbstractSmartyPlugin
{
/** @var PropelModelPager[] */
protected static $pagination = null;
protected $loopDefinition = array();
/**
* @var Request
* @deprecated since 2.3, please use requestStack
*/
protected $request;
/** @var EventDispatcherInterface */
protected $dispatcher;
/** @var SecurityContext */
protected $securityContext;
/** @var Translator */
protected $translator;
/** @var ContainerInterface Service Container */
protected $container = null;
/** @var LoopResult[] */
protected $loopstack = array();
protected $varstack = array();
/**
* @param ContainerInterface $container
*/
public function __construct(ContainerInterface $container)
{
$this->container = $container;
$this->request = $container->get('request_stack')->getCurrentRequest();
$this->dispatcher = $container->get('event_dispatcher');
$this->securityContext = $container->get('thelia.securityContext');
$this->translator = $container->get("thelia.translator");
}
/**
* @param string $loopName
* @return PropelModelPager
* @throws \InvalidArgumentException if no pagination was found for loop
*/
public static function getPagination($loopName)
{
if (array_key_exists($loopName, self::$pagination)) {
return self::$pagination[$loopName];
} else {
throw new \InvalidArgumentException(
Translator::getInstance()->trans("No pagination currently defined for loop name '%name'", ['%name' => $loopName ])
);
}
}
/**
* Process the count function: executes a loop and return the number of items found
*
* @param array $params parameters array
* @param \Smarty_Internal_Template $template
*
* @return int the item count
* @throws \InvalidArgumentException if a parameter is missing
*
*/
public function theliaCount($params, /** @noinspection PhpUnusedParameterInspection */ $template)
{
$type = $this->getParam($params, 'type');
if (null == $type) {
throw new \InvalidArgumentException(
$this->translator->trans("Missing 'type' parameter in {count} loop arguments")
);
}
$loop = $this->createLoopInstance($params);
return $loop->count();
}
/**
* Process {loop name="loop name" type="loop type" ... } ... {/loop} block
*
* @param array $params
* @param string $content
* @param \Smarty_Internal_Template $template
* @param boolean $repeat
*
* @throws \InvalidArgumentException
*
* @return void|string
*/
public function theliaLoop($params, $content, $template, &$repeat)
{
$name = $this->getParam($params, 'name');
if (null == $name) {
throw new \InvalidArgumentException(
$this->translator->trans("Missing 'name' parameter in loop arguments")
);
}
$type = $this->getParam($params, 'type');
if (null == $type) {
throw new \InvalidArgumentException(
$this->translator->trans("Missing 'type' parameter in loop arguments")
);
}
if ($content === null) {
// Check if a loop with the same name exists in the current scope, and abort if it's the case.
if (array_key_exists($name, $this->varstack)) {
throw new \InvalidArgumentException(
$this->translator->trans("A loop named '%name' already exists in the current scope.", ['%name' => $name])
);
}
$loop = $this->createLoopInstance($params);
self::$pagination[$name] = null;
$loopResults = $loop->exec(self::$pagination[$name]);
$loopResults->rewind();
$this->loopstack[$name] = $loopResults;
// No results ? The loop is terminated, do not evaluate loop text.
if ($loopResults->isEmpty()) {
$repeat = false;
}
} else {
$loopResults = $this->loopstack[$name];
$loopResults->next();
}
if ($loopResults->valid()) {
$loopResultRow = $loopResults->current();
// On first iteration, save variables that may be overwritten by this loop
if (! isset($this->varstack[$name])) {
$saved_vars = array();
$varlist = $loopResultRow->getVars();
foreach ($varlist as $var) {
$saved_vars[$var] = $template->getTemplateVars($var);
}
$this->varstack[$name] = $saved_vars;
}
foreach ($loopResultRow->getVarVal() as $var => $val) {
$template->assign($var, $val);
}
$repeat = true;
}
// Loop is terminated. Cleanup.
if (! $repeat) {
// Restore previous variables values before terminating
if (isset($this->varstack[$name])) {
foreach ($this->varstack[$name] as $var => $value) {
$template->assign($var, $value);
}
unset($this->varstack[$name]);
}
}
if ($content !== null) {
if ($loopResults->isEmpty()) {
$content = "";
}
return $content;
}
return '';
}
/**
* Process {elseloop rel="loopname"} ... {/elseloop} block
*
* @param array $params loop parameters
* @param string $content loop text content
* @param \Smarty_Internal_Template $template the Smarty object
* @param boolean $repeat repeat indicator (see Smarty doc.)
* @return string the loop output
*/
public function theliaElseloop($params, $content, /** @noinspection PhpUnusedParameterInspection */ $template, &$repeat)
{
//Block the smarty interpretation in the elseloop
if ($content === null) {
if (! $this->checkEmptyLoop($params)) {
$repeat = false;
return '';
}
}
return $content;
}
/**
* Process {ifloop rel="loopname"} ... {/ifloop} block
*
* @param array $params loop parameters
* @param string $content loop text content
* @param \Smarty_Internal_Template $template the Smarty object
* @param boolean $repeat repeat indicator (see Smarty doc.)
* @return string the loop output
*/
public function theliaIfLoop($params, $content, /** @noinspection PhpUnusedParameterInspection */ $template, &$repeat)
{
// When encountering close tag, check if loop has results.
if ($repeat === false) {
return $this->checkEmptyLoop($params) ? '' : $content;
}
return '';
}
/**
* Process {pageloop rel="loopname"} ... {/pageloop} block
*
* @param array $params loop parameters
* @param string $content loop text content
* @param \Smarty_Internal_Template $template the Smarty object
* @param boolean $repeat repeat indicator (see Smarty doc.)
* @return string the loop output
* @throws \InvalidArgumentException
*/
public function theliaPageLoop($params, $content, $template, &$repeat)
{
$loopName = $this->getParam($params, 'rel');
if (null == $loopName) {
throw new \InvalidArgumentException($this->translator->trans("Missing 'rel' parameter in page loop"));
}
// Find pagination
$pagination = self::getPagination($loopName);
if ($pagination === null || $pagination->getNbResults() == 0) {
// No need to paginate
return '';
}
$startPage = intval($this->getParam($params, 'start-page', 1));
$displayedPageCount = intval($this->getParam($params, 'limit', 10));
if (intval($displayedPageCount) == 0) {
$displayedPageCount = PHP_INT_MAX;
}
$totalPageCount = $pagination->getLastPage();
if ($content === null) {
// The current page
$currentPage = $pagination->getPage();
// Get the start page.
if ($totalPageCount > $displayedPageCount) {
$startPage = $currentPage - round($displayedPageCount / 2);
if ($startPage <= 0) {
$startPage = 1;
}
}
// This is the iterative page number, the one we're going to increment in this loop
$iterationPage = $startPage;
// The last displayed page number
$endPage = $startPage + $displayedPageCount - 1;
if ($endPage > $totalPageCount) {
$endPage = $totalPageCount;
}
// The first displayed page number
$template->assign('START', $startPage);
// The previous page number
$template->assign('PREV', $currentPage > 1 ? $currentPage-1 : $currentPage);
// The next page number
$template->assign('NEXT', $currentPage < $totalPageCount ? $currentPage+1 : $totalPageCount);
// The last displayed page number
$template->assign('END', $endPage);
// The overall last page
$template->assign('LAST', $totalPageCount);
} else {
$iterationPage = $template->getTemplateVars('PAGE');
$iterationPage++;
}
if ($iterationPage <= $template->getTemplateVars('END')) {
// The iterative page number
$template->assign('PAGE', $iterationPage);
// The overall current page number
$template->assign('CURRENT', $pagination->getPage());
$repeat = true;
}
if ($content !== null) {
return $content;
}
return '';
}
/**
* Check if a loop has returned results. The loop shoud have been executed before, or an
* InvalidArgumentException is thrown
*
* @param array $params
*
* @return boolean true if the loop is empty
* @throws \InvalidArgumentException
*/
protected function checkEmptyLoop($params)
{
$loopName = $this->getParam($params, 'rel');
if (null == $loopName) {
throw new \InvalidArgumentException(
$this->translator->trans("Missing 'rel' parameter in ifloop/elseloop arguments")
);
}
if (! isset($this->loopstack[$loopName])) {
throw new \InvalidArgumentException(
$this->translator->trans("Related loop name '%name'' is not defined.", ['%name' => $loopName])
);
}
return $this->loopstack[$loopName]->isEmpty();
}
/**
* @param $smartyParams
*
* @return BaseLoop
* @throws \Thelia\Core\Template\Element\Exception\InvalidElementException
* @throws \Thelia\Core\Template\Element\Exception\ElementNotFoundException
*/
protected function createLoopInstance($smartyParams)
{
$type = strtolower($smartyParams['type']);
if (! isset($this->loopDefinition[$type])) {
throw new ElementNotFoundException(
$this->translator->trans("Loop type '%type' is not defined.", ['%type' => $type])
);
}
$class = new \ReflectionClass($this->loopDefinition[$type]);
if ($class->isSubclassOf("Thelia\Core\Template\Element\BaseLoop") === false) {
throw new InvalidElementException(
$this->translator->trans("'%type' loop class should extends Thelia\Core\Template\Element\BaseLoop", ['%type' => $type])
);
}
$loop = $class->newInstance(
$this->container
);
$loop->initializeArgs($smartyParams);
return $loop;
}
/**
*
* Injects an associative array containing information for loop execution
*
* key is loop name
* value is the class implementing/extending base loop classes
*
* ex :
*
* $loop = array(
* "product" => "Thelia\Loop\Product",
* "category" => "Thelia\Loop\Category",
* "myLoop" => "My\Own\Loop"
* );
*
* @param array $loopDefinition
* @throws \InvalidArgumentException if loop name already exists
*/
public function setLoopList(array $loopDefinition)
{
foreach ($loopDefinition as $name => $className) {
if (array_key_exists($name, $this->loopDefinition)) {
throw new \InvalidArgumentException(
$this->translator->trans("The loop name '%name' is already defined in %className class", [
'%name' => $name,
'%className' => $className
])
);
}
$this->loopDefinition[$name] = $className;
}
}
/**
* Defines the various smarty plugins hendled by this class
*
* @return \TheliaSmarty\Template\SmartyPluginDescriptor[] smarty plugin descriptors
*/
public function getPluginDescriptors()
{
return array(
new SmartyPluginDescriptor('function', 'count', $this, 'theliaCount'),
new SmartyPluginDescriptor('block', 'loop', $this, 'theliaLoop'),
new SmartyPluginDescriptor('block', 'elseloop', $this, 'theliaElseloop'),
new SmartyPluginDescriptor('block', 'ifloop', $this, 'theliaIfLoop'),
new SmartyPluginDescriptor('block', 'pageloop', $this, 'theliaPageLoop'),
);
}
}