/**
* {@inheritdoc}
*/
public function renderBlock(FormView $view, $blockName, array $variables = array())
{
if (0 == count($this->variableStack)) {
throw new FormException('This method should only be called while rendering a form element.');
}
$viewCacheKey = $view->vars[self::CACHE_KEY_VAR];
$scopeVariables = end($this->variableStack[$viewCacheKey]);
$resource = $this->engine->getResourceForBlockName($view, $blockName);
if (!$resource) {
throw new FormException(sprintf('No block "%s" found while rendering the form.', $blockName));
}
// Merge the passed with the existing attributes
if (isset($variables['attr']) && isset($scopeVariables['attr'])) {
$variables['attr'] = array_replace($scopeVariables['attr'], $variables['attr']);
}
// Merge the passed with the exist *label* attributes
if (isset($variables['label_attr']) && isset($scopeVariables['label_attr'])) {
$variables['label_attr'] = array_replace($scopeVariables['label_attr'], $variables['label_attr']);
}
// Do not use array_replace_recursive(), otherwise array variables
// cannot be overwritten
$variables = array_replace($scopeVariables, $variables);
$this->variableStack[$viewCacheKey][] = $variables;
// Do the rendering
$html = $this->engine->renderBlock($view, $resource, $blockName, $variables);
// Clear the stack
array_pop($this->variableStack[$viewCacheKey]);
return $html;
}
/**
* {@inheritdoc}
*/
public function renderBlock(FormView $view, $blockName, array $variables = array())
{
$resource = $this->engine->getResourceForBlockName($view, $blockName);
if (!$resource) {
throw new LogicException(sprintf('No block "%s" found while rendering the form.', $blockName));
}
$viewCacheKey = $view->vars[self::CACHE_KEY_VAR];
// The variables are cached globally for a view (instead of for the
// current suffix)
if (!isset($this->variableStack[$viewCacheKey])) {
$this->variableStack[$viewCacheKey] = array();
// The default variable scope contains all view variables, merged with
// the variables passed explicitly to the helper
$scopeVariables = $view->vars;
$varInit = true;
} else {
// Reuse the current scope and merge it with the explicitly passed variables
$scopeVariables = end($this->variableStack[$viewCacheKey]);
$varInit = false;
}
// Merge the passed with the existing attributes
if (isset($variables['attr']) && isset($scopeVariables['attr'])) {
$variables['attr'] = array_replace($scopeVariables['attr'], $variables['attr']);
}
// Merge the passed with the exist *label* attributes
if (isset($variables['label_attr']) && isset($scopeVariables['label_attr'])) {
$variables['label_attr'] = array_replace($scopeVariables['label_attr'], $variables['label_attr']);
}
// Do not use array_replace_recursive(), otherwise array variables
// cannot be overwritten
$variables = array_replace($scopeVariables, $variables);
$this->variableStack[$viewCacheKey][] = $variables;
// Do the rendering
$html = $this->engine->renderBlock($view, $resource, $blockName, $variables);
// Clear the stack
array_pop($this->variableStack[$viewCacheKey]);
if ($varInit) {
unset($this->variableStack[$viewCacheKey]);
}
return $html;
}