外掛說明
This plugin provides a simple way for you to use the Twig templating engine with WordPress themes. A problem with WordPress themes is that it is very easy to create templates that are a mess of PHP and HTML. This isn’t good for working with neither does it provide a separation of concerns. The Twig templating engine is a great engine that allows you to separate out getting & manipulating your data and rendering it out. You create your themes in the same way as before, only you render a template instead of using PHP within your page structure.
The Installation section provides the steps to using this plugin with your theme.
In the Other Notes section, there is an easy reference for the different functions/filters and what they can be used for.
For Twig, the Twig documentation is the best resource I can offer. It is extremely well documented.
Functions and Filters
Functions
twigpress_render_twig_template($vals = array(), $template = false, $echo = true)
Calling this function renders a $template
with the values passed in $vals
. You can also choose a specific template to render and whether you would like to echo the template or simply return it.
There is no need to explicitly set the $template
name. If this is left to the default, the plugin will look for a template with the same name as the PHP file being rendered (with a ‘.twig’ extension). For example, if front-page.php
is being rendered the plugin will attempt to find front-page.twig
.
If you wish to simply return the rendered template, set $echo
to false
.
twigpress_get_the_content()
Use this function to get the content for the post you are dealing with. If you use get_the_content
, WordPress returns the unformatted content and the the_content
filter is not applied. twigpress_get_the_content()
takes care of both of these tasks.
Filters
twigpress_twig_site_variables
This filter is applied when the plugin is instantiated, on the ‘init’ action, and allows you to alter the array of variables that are passed to the Twig environment when it is first created. As such, these variables are available to all templates. This filter is best suited for site-wide information. For post-specific variables, use the twigpress_twig_post_template_vars
filter.
Defaults:
'site' => array(
'lang_attributes' => get_bloginfo('language'),
'charset' => get_bloginfo('charset'),
'url' => get_bloginfo('url'),
'stylesheet_directory' => get_stylesheet_directory_uri(),
'title' => get_bloginfo('name'),
'description' => get_bloginfo('description')
)
In templates these would be accessible through, for example, {{ site.stylesheet_directory }}
.
twigpress_twig_global_functions
There will be times when you need to use PHP functions in your templates, and there is no way to capture their content to pass to the template when it is rendered. This filter gives you access to the array of functions that are added to the Twig environment, making them available for calling in your templates.
Defaults: wp_head()
, wp_footer()
, wp_title()
, body_class()
, wp_nav_menu()
twigpress_twig_post_template_vars
This filter is applied to your passed array of $vars
immediately before the template is rendered. This filter is ideal for when you have a set of default variables you wish to include in every template, but are related to posts not the entire site.
安裝方式
- Download the plugin from WordPress, either directly or through the plugins admin screen
– If you download the files directly, upload them to your/wp-content/plugins/
directory - Place the Twig files in your
wp-content
directory,Autoloader.php
should reside atwp-content/Twig/Autoloader.php
- Create a ‘twigs’ directory inside your theme folder, place your Twig templates in here
- Activate the plugin through the ‘Plugins’ menu in WordPress
- Use the
twigpress_render_twig_template()
function in your PHP files to render templates
參與者及開發者
變更記錄
1.1.2
- [Added] If WP_DEBUG is enabled, turn on debugging in the Twig environment
1.1.1
- Strict variables are no longer enforced
1.1.0
- [Added] TwigPress now sets up a template cache in your theme folder
- [Added] TwigPress sets the Twig core to recompile templates when the source code changes
- [Added] TwigPress sets the Twig core to enforce strict variables, which stops silent failure
1.0.1
- Minor changes to codebase
1.0.0
- Initial release