/**
* @param mixed $candidate
* @param RenderingContextInterface $renderingContext
* @return mixed
*/
protected static function getTemplateVariableOrValueItself($candidate, RenderingContextInterface $renderingContext)
{
$variables = $renderingContext->getVariableProvider()->getAll();
$extractor = new VariableExtractor();
$suspect = $extractor->getByPath($variables, $candidate);
if (NULL === $suspect) {
return $candidate;
}
return $suspect;
}
/**
* Handles the appearance of an object accessor (like {posts.author.email}).
* Creates a new instance of \NamelessCoder\Fluid\ObjectAccessorNode.
*
* Handles ViewHelpers as well which are in the shorthand syntax.
*
* @param ParsingState $state The current parsing state
* @param string $objectAccessorString String which identifies which objects to fetch
* @param string $delimiter
* @param string $viewHelperString
* @param string $additionalViewHelpersString
* @return void
*/
protected function objectAccessorHandler(ParsingState $state, $objectAccessorString, $delimiter, $viewHelperString, $additionalViewHelpersString)
{
$viewHelperString .= $additionalViewHelpersString;
$numberOfViewHelpers = 0;
// The following post-processing handles a case when there is only a ViewHelper, and no Object Accessor.
// Resolves bug #5107.
if (strlen($delimiter) === 0 && strlen($viewHelperString) > 0) {
$viewHelperString = $objectAccessorString . $viewHelperString;
$objectAccessorString = '';
}
// ViewHelpers
$matches = array();
if (strlen($viewHelperString) > 0 && preg_match_all(Patterns::$SPLIT_PATTERN_SHORTHANDSYNTAX_VIEWHELPER, $viewHelperString, $matches, PREG_SET_ORDER) > 0) {
// The last ViewHelper has to be added first for correct chaining.
foreach (array_reverse($matches) as $singleMatch) {
if (strlen($singleMatch['ViewHelperArguments']) > 0) {
$arguments = $this->recursiveArrayHandler($singleMatch['ViewHelperArguments']);
} else {
$arguments = array();
}
$viewHelperWasAdded = $this->initializeViewHelperAndAddItToStack($state, $singleMatch['NamespaceIdentifier'], $singleMatch['MethodIdentifier'], $arguments);
if ($viewHelperWasAdded === TRUE) {
$numberOfViewHelpers++;
}
}
}
// Object Accessor
if (strlen($objectAccessorString) > 0) {
if ($state->isCompilable() && !$state->isCompiled()) {
$accessors = VariableExtractor::extractAccessors($state->getVariableContainer(), $objectAccessorString);
} else {
$accessors = array();
}
$node = new ObjectAccessorNode($objectAccessorString, $accessors);
$this->callInterceptor($node, InterceptorInterface::INTERCEPT_OBJECTACCESSOR, $state);
$state->getNodeFromStack()->addChildNode($node);
}
// Close ViewHelper Tags if needed.
for ($i = 0; $i < $numberOfViewHelpers; $i++) {
$node = $state->popNodeFromStack();
$this->callInterceptor($node, InterceptorInterface::INTERCEPT_CLOSING_VIEWHELPER, $state);
$state->getNodeFromStack()->addChildNode($node);
}
}
/**
* Evaluate this node and return the correct object.
*
* Handles each part (denoted by .) in $this->objectPath in the following order:
* - call appropriate getter
* - call public property, if exists
* - fail
*
* The first part of the object path has to be a variable in the
* VariableProvider.
*
* @param RenderingContextInterface $renderingContext
* @return object The evaluated object, can be any object type.
*/
public function evaluate(RenderingContextInterface $renderingContext)
{
$variableProvider = $renderingContext->getVariableProvider();
switch (strtolower($this->objectPath)) {
case '_all':
return $variableProvider->getAll();
case 'true':
case 'on':
case 'yes':
return TRUE;
case 'false':
case 'off':
case 'no':
return FALSE;
default:
return VariableExtractor::extract($variableProvider, $this->objectPath, $this->accessors);
}
}
/**
* @param mixed $subject
* @param string $path
* @param string $accessor
* @param mixed $expected
* @test
* @dataProvider getExtractRedectAccessorTestValues
*/
public function testExtractRedetectsAccessorIfUnusableAccessorPassed($subject, $path, $accessor, $expected)
{
$result = VariableExtractor::extract($subject, 'test', array($accessor));
$this->assertEquals($expected, $result);
}
/**
* Groups the given array by the specified groupBy property.
*
* @param array $elements The array / traversable object to be grouped
* @param string $groupBy Group by this property
* @return array The grouped array in the form array('keys' => array('key1' => [key1value], 'key2' => [key2value], ...), 'values' => array('key1' => array([key1value] => [element1]), ...), ...)
* @throws ViewHelper\Exception
*/
protected function groupElements(array $elements, $groupBy)
{
$extractor = new VariableExtractor();
$groups = array('keys' => array(), 'values' => array());
foreach ($elements as $key => $value) {
if (is_array($value)) {
$currentGroupIndex = isset($value[$groupBy]) ? $value[$groupBy] : NULL;
} elseif (is_object($value)) {
$currentGroupIndex = $extractor->getByPath($value, $groupBy);
} else {
throw new ViewHelper\Exception('GroupedForViewHelper only supports multi-dimensional arrays and objects', 1253120365);
}
$currentGroupKeyValue = $currentGroupIndex;
if ($currentGroupIndex instanceof \DateTime) {
$currentGroupIndex = $currentGroupIndex->format(\DateTime::RFC850);
} elseif (is_object($currentGroupIndex)) {
$currentGroupIndex = spl_object_hash($currentGroupIndex);
}
$groups['keys'][$currentGroupIndex] = $currentGroupKeyValue;
$groups['values'][$currentGroupIndex][$key] = $value;
}
return $groups;
}