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<?php |
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/* |
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* This file is part of the Superdesk Web Publisher Templates System. |
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* |
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* Copyright 2015 Sourcefabric z.ú. and contributors. |
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* |
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* For the full copyright and license information, please see the |
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* AUTHORS and LICENSE files distributed with this source code. |
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* |
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* @copyright 2015 Sourcefabric z.ú |
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* @license http://www.superdesk.org/license |
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*/ |
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namespace SWP\Component\TemplatesSystem\Twig\Node; |
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/** |
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* Gimme twig node. |
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*/ |
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class GimmeListNode extends \Twig_Node |
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{ |
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protected static $count = 1; |
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protected $loop; |
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/** |
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* GimmeListNode constructor. |
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* |
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* @param \Twig_Node $variable |
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* @param \Twig_Node $collectionType |
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* @param \Twig_Node_Expression_Filter|null $collectionFilters |
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* @param \Twig_Node_Expression|null $parameters |
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* @param \Twig_Node_Expression|null $ignoreContext |
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* @param \Twig_Node_Expression|null $ifExpression |
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* @param \Twig_NodeInterface|null $else |
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* @param \Twig_NodeInterface $body |
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* @param $lineno |
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* @param null $tag |
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*/ |
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public function __construct( |
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\Twig_Node $variable, |
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\Twig_Node $collectionType, |
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\Twig_Node_Expression_Filter $collectionFilters = null, |
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\Twig_Node_Expression $parameters = null, |
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\Twig_Node_Expression $ignoreContext = null, |
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\Twig_Node_Expression $ifExpression = null, |
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\Twig_NodeInterface $else = null, |
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\Twig_NodeInterface $body, |
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$lineno, |
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$tag = null |
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) { |
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$body = new \Twig_Node([$body, $this->loop = new \Twig_Node_ForLoop($lineno, $tag)]); |
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if (null !== $ifExpression) { |
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$body = new \Twig_Node_If(new \Twig_Node([$ifExpression, $body]), null, $lineno, $tag); |
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} |
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$nodes = [ |
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'variable' => $variable, |
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'collectionType' => $collectionType, |
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'body' => $body, |
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]; |
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if (!is_null($parameters)) { |
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$nodes['parameters'] = $parameters; |
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} |
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if (!is_null($ignoreContext)) { |
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$nodes['ignoreContext'] = $ignoreContext; |
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} |
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if (!is_null($collectionFilters)) { |
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$nodes['collectionFilters'] = $collectionFilters; |
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} |
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if (!is_null($ifExpression)) { |
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$nodes['ifExpression'] = $ifExpression; |
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} |
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if (!is_null($else)) { |
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$nodes['else'] = $else; |
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} |
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parent::__construct($nodes, ['with_loop' => true, 'ifexpr' => null !== $ifExpression], $lineno, $tag); |
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} |
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/** |
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* {@inheritdoc} |
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*/ |
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public function compile(\Twig_Compiler $compiler) |
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{ |
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$i = self::$count++; |
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$collectionTypeName = $this->getNode('collectionType')->getNode(0)->getAttribute('name'); |
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$compiler |
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->addDebugInfo($this); |
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if ($this->hasNode('collectionFilters')) { |
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$compiler->write("\$context['_collection_type_filters'] = [];\n"); |
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$compiler->write("\$context['".$collectionTypeName."'] = null;\n"); |
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$compiler->write("\$context['_collection_type_filters'] = ")->subcompile($this->getNode('collectionFilters'))->raw("['_collection_type_filters']; unset(\$context['".$collectionTypeName."']['_collection_type_filters']);\n"); |
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View Code Duplication |
if ($this->hasNode('parameters')) { |
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$compiler->write('$parameters = array_merge(')->subcompile($this->getNode('parameters'))->raw(", \$context['_collection_type_filters']);\n"); |
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} else { |
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$compiler->write("\$parameters = \$context['_collection_type_filters'];\n"); |
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} |
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View Code Duplication |
} else { |
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if ($this->hasNode('parameters')) { |
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$compiler->raw('$parameters = ')->subcompile($this->getNode('parameters'))->raw(";\n"); |
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} else { |
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$compiler->raw("\$parameters = [];\n"); |
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} |
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} |
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$compiler->write('$swpCollectionMetaLoader'.$i." = \$this->env->getExtension('swp_gimme')->getLoader();\n"); |
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View Code Duplication |
if ($this->hasNode('ignoreContext')) { |
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$compiler->write('$swpContext'.$i."GimmeList = \$this->env->getExtension('swp_gimme')->getContext();\n"); |
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$compiler->write('$swpIgnoreContext'.$i.'GimmeList = $swpContext'.$i.'GimmeList->temporaryUnset(')->subcompile($this->getNode('ignoreContext'))->raw(");\n"); |
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} |
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$compiler->write('')->subcompile($this->getNode('collectionType'))->raw(' = twig_ensure_traversable($swpCollectionMetaLoader'.$i.'->load("')->raw($collectionTypeName)->raw('", '); |
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$compiler->raw('$parameters'); |
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$compiler->raw(", \SWP\Component\TemplatesSystem\Gimme\Loader\LoaderInterface::COLLECTION));\n"); |
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// the (array) cast bypasses a PHP 5.2.6 bug |
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$compiler->write("\$context['_parent'] = (array) \$context;\n"); |
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if ($this->hasNode('else')) { |
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$compiler->write("\$context['_iterated'] = false;\n"); |
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} |
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if ($this->getAttribute('with_loop')) { |
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$compiler |
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->write("\$context['loop'] = array(\n") |
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->write(" 'parent' => \$context['_parent'],\n") |
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->write(" 'index0' => 0,\n") |
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->write(" 'index' => 1,\n") |
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->write(" 'first' => true,\n") |
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->write(");\n"); |
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if (!$this->getAttribute('ifexpr') && $this->getNode('collectionType')) { |
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$compiler |
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->write('if (is_array(')->subcompile($this->getNode('collectionType'))->raw(') || (is_object(')->subcompile($this->getNode('collectionType'))->raw(') && ')->subcompile($this->getNode('collectionType'))->raw(" instanceof Countable)) {\n") |
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->indent() |
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->write('$length = count(')->subcompile($this->getNode('collectionType'))->raw(");\n") |
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->write("\$context['loop']['revindex0'] = \$length - 1;\n") |
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->write("\$context['loop']['revindex'] = \$length;\n") |
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->write("\$context['loop']['length'] = \$length;\n") |
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->write("\$context['loop']['totalLength'] = \$length;\n") |
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->write("\$context['loop']['last'] = 1 === \$length;\n") |
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->outdent() |
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->write("}\n"); |
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$compiler |
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->write('if(is_object(')->subcompile($this->getNode('collectionType'))->raw(') && ')->subcompile($this->getNode('collectionType'))->raw(" instanceof \SWP\Component\TemplatesSystem\Gimme\Meta\MetaCollection) {\n") |
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->indent() |
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->write('$context[\'loop\'][\'totalLength\'] = ')->subcompile($this->getNode('collectionType'))->raw("->getTotalItemsCount();\n") |
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->outdent() |
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->write("}\n"); |
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} |
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} |
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$this->loop->setAttribute('else', $this->hasNode('else')); |
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$this->loop->setAttribute('with_loop', $this->getAttribute('with_loop')); |
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$this->loop->setAttribute('ifexpr', $this->getAttribute('ifexpr')); |
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if (null !== $this->getNode('collectionType')) { |
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$compiler |
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->write('foreach (') |
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->subcompile($this->getNode('collectionType')) |
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->raw(' as $_key') |
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->raw(' => ') |
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->subcompile($this->getNode('variable')) |
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->raw(") {\n") |
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->indent() |
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->subcompile($this->getNode('body')) |
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->outdent() |
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->write("}\n"); |
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} |
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if ($this->hasNode('else')) { |
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$compiler |
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->write("if (!\$context['_iterated']) {\n") |
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->indent() |
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->subcompile($this->getNode('else')) |
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->outdent() |
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->write("}\n"); |
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} |
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if ($this->hasNode('ignoreContext')) { |
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$compiler->write('$swpContext'.$i.'GimmeList->restoreTemporaryUnset($swpIgnoreContext'.$i."GimmeList);\n"); |
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} |
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$compiler->write("\$_parent = \$context['_parent'];\n"); |
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// remove some "private" loop variables (needed for nested loops) |
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$compiler->write('unset($context[\''.$this->getNode('variable')->getNode(0)->getAttribute('name').'\'], $context[\'_iterated\'], $context[\''.$collectionTypeName.'\'], $context[\'_parent\'], $context[\'loop\']);'."\n"); |
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if ($this->hasNode('collectionFilters')) { |
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$compiler->write("unset(\$context['_collection_type_filters']);\n"); |
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} |
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// keep the values set in the inner context for variables defined in the outer context |
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$compiler->write("\$context = array_intersect_key(\$context, \$_parent) + \$_parent;\n"); |
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} |
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} |
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Duplicated code is one of the most pungent code smells. If you need to duplicate the same code in three or more different places, we strongly encourage you to look into extracting the code into a single class or operation.
You can also find more detailed suggestions in the “Code” section of your repository.