twig_render_template($template_file, array $variables)
Implements hook_render_template().
Renders a Twig template.
If the Twig debug setting is enabled, HTML comments including the theme hook and template file name suggestions will surround the template markup.
Parameters
string $template_file: The file name of the template to render.
array $variables: A keyed array of variables that will appear in the output.
Return value
string|\Drupal\Component\Render\MarkupInterface The output generated by the template, plus any debug information.
File
- core/themes/engines/twig/twig.engine, line 54
- Handles integration of Twig templates with the Drupal theme system.
Code
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 | function twig_render_template($template_file, array $variables) { /** @var \Twig_Environment $twig_service */ $twig_service = \Drupal::service('twig'); $output = [ 'debug_prefix' => '', 'debug_info' => '', 'rendered_markup' => '', 'debug_suffix' => '', ]; try { $output['rendered_markup'] = $twig_service->loadTemplate($template_file)->render($variables); } catch (\Twig_Error_Runtime $e) { // In case there is a previous exception, re-throw the previous exception, // so that the original exception is shown, rather than // \Twig_Template::displayWithErrorHandling()'s exception. $previous_exception = $e->getPrevious(); if ($previous_exception) { throw $previous_exception; } throw $e; } if ($twig_service->isDebug()) { $output['debug_prefix'] .= "\n\n<!-- THEME DEBUG -->"; $output['debug_prefix'] .= "\n<!-- THEME HOOK: '" . Html::escape($variables['theme_hook_original']) . "' -->"; // If there are theme suggestions, reverse the array so more specific // suggestions are shown first. if (!empty($variables['theme_hook_suggestions'])) { $variables['theme_hook_suggestions'] = array_reverse($variables['theme_hook_suggestions']); } // Add debug output for directly called suggestions like // '#theme' => 'comment__node__article'. if (strpos($variables['theme_hook_original'], '__') !== FALSE) { $derived_suggestions[] = $hook = $variables['theme_hook_original']; while ($pos = strrpos($hook, '__')) { $hook = substr($hook, 0, $pos); $derived_suggestions[] = $hook; } // Get the value of the base hook (last derived suggestion) and append it // to the end of all theme suggestions. $base_hook = array_pop($derived_suggestions); $variables['theme_hook_suggestions'] = array_merge($derived_suggestions, $variables['theme_hook_suggestions']); $variables['theme_hook_suggestions'][] = $base_hook; } if (!empty($variables['theme_hook_suggestions'])) { $extension = twig_extension(); $current_template = basename($template_file); $suggestions = $variables['theme_hook_suggestions']; // Only add the original theme hook if it wasn't a directly called // suggestion. if (strpos($variables['theme_hook_original'], '__') === FALSE) { $suggestions[] = $variables['theme_hook_original']; } foreach ($suggestions as &$suggestion) { $template = strtr($suggestion, '_', '-') . $extension; $prefix = ($template == $current_template) ? 'x' : '*'; $suggestion = $prefix . ' ' . $template; } $output['debug_info'] .= "\n<!-- FILE NAME SUGGESTIONS:\n " . Html::escape(implode("\n ", $suggestions)) . "\n-->"; } $output['debug_info'] .= "\n<!-- BEGIN OUTPUT from '" . Html::escape($template_file) . "' -->\n"; $output['debug_suffix'] .= "\n<!-- END OUTPUT from '" . Html::escape($template_file) . "' -->\n\n"; } // This output has already been rendered and is therefore considered safe. return Markup::create(implode('', $output));} |
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