Flynt
Short Description
Flynt is a WordPress theme for component-based development using Timber and Advanced Custom Fields.
Table of Contents
Install
- Clone this repo to
<your-project>/wp-content/themes
. - Change the host variable in
flynt/build-config.js
to match your host URL:const host = 'your-project.test'
- Navigate to the theme folder and run the following command in your terminal:
# wp-content/themes/flynt
composer install
npm i
npm run build
- Open the WordPress back-end and activate the Flynt theme.
- Run
npm run start
and start developing. Your local server is available atlocalhost:3000
.
Dependencies
- WordPress >= 5.0
- Node = 12
- Composer >= 1.8
- Advanced Custom Fields Pro >= 5.7
Usage
In your terminal, navigate to <your-project>/wp-content/themes/flynt
and run npm start
. This will start a local server at localhost:3000
.
All files in assets
and Components
will now be watched for changes and compiled to the dist
folder. Happy coding!
Flynt comes with a ready to use Base Style built according to our best practices for building simple, maintainable components. Go to localhost:3000/BaseStyle
to see it in action.
Assets
The ./assets
folder contains all global JavaScript, SCSS, images, and font files for the theme. Files inside this folder are watched for changes and compile to ./dist
.
The main.scss
file is compiled to ./dist/assets/main.css
which is enqueued in the front-end.
The admin.scss
file is compiled to ./dist/assets/admin.css
which is enqueued in the administrator back-end of WordPress, so styles added to this file will take effect only in the back-end.
Lib & Inc
The ./lib
folder includes helper functions and basic setup logic. You will most likely not need to modify any files inside ./lib
. All files in the ./lib
folder are autoloaded via PSR-4.
The ./inc
folder is a more organised version of WordPress' functions.php
and contains all custom theme logic. All files in the ./inc
folder are automatically required.
For organisation, ./inc
has three subfolders. We recommend using these three folders to keep the theme well-structured:
customPostTypes
Use this folder to register custom WordPress post types.customTaxonomies
Use this folder to register custom WordPress taxonomies.fieldGroups
Use this folder to register Advanced Custom Fields field groups. (See Field Groups for more information.)
After the files from ./lib
and ./inc
are loaded, all components from the ./Components
folder are loaded.
Page Templates
Flynt uses Timber to structure its page templates and Twig for rendering them. Timber's documentation is extensive and up to date, so be sure to get familiar with it.
There is one Twig function added in Flynt to render components into templates:
renderComponent(componentName, data)
renders a single component. For example, in theindex.twig
template.
Besides the main document structure (in ./templates/_document.twig
), everything else is a component.
Components
A component is a self-contained building-block. Each component contains its own layout, its ACF fields, PHP logic, scripts, and styles.
ExampleComponent/
├── functions.php
├── index.twig
├── README.md
├── screenshot.png
├── script.js
├── style.scss
The functions.php
file for every component in the ./Components
folder is executed during the WordPress action after_setup_theme
. This is run from the ./functions.php
file of the theme.
To render components into a template, see Page Templates.
Advanced Custom Fields
Defining Advanced Custom Fields (ACF) can be done in functions.php
for each component. As a best practise, we recommend defining your fields inside a function named getACFLayout()
which you can then call in a field group.
For example:
namespace Flynt\Components\BlockWysiwyg;
function getACFLayout()
{
return [
'name' => 'blockWysiwyg',
'label' => 'Block: Wysiwyg',
'sub_fields' => [
[
'label' => __('Content', 'flynt'),
'name' => 'contentHtml',
'type' => 'wysiwyg',
'delay' => 1,
'media_upload' => 0,
'required' => 1,
],
]
];
}
Field Groups
Field groups are needed to show registered fields in the WordPress back-end. All field groups are created in the ./inc/fieldGroups
folder. Two field groups exist by default: pageComponents.php
and postComponents.php
.
We call the function getACFLayout()
defined in the functions.php
file of each component to load fields into a field group.
For example:
use ACFComposer\ACFComposer;
use Flynt\Components;
add_action('Flynt/afterRegisterComponents', function () {
ACFComposer::registerFieldGroup([
'name' => 'pageComponents',
'title' => 'Page Components',
'style' => 'seamless',
'fields' => [
[
'name' => 'pageComponents',
'label' => __('Page Components', 'flynt'),
'type' => 'flexible_content',
'button_label' => 'Add Component',
'layouts' => [
Components\BlockWysiwyg\getACFLayout(),
]
]
],
'location' => [
[
[
'param' => 'post_type',
'operator' => '==',
'value' => 'page'
],
[
'param' => 'page_type',
'operator' => '!=',
'value' => 'posts_page'
]
]
]
]);
});
Here we use the ACF Field Group Composer plugin, which provides the advantage that all fields automatically get a unique key.
ACF Option Pages
Flynt includes several utility functions for creating Advanced Custom Fields options pages. Briefly, these are:
Flynt\Utils\Options::addTranslatable
Adds fields into a new group inside the Translatable Options options page. When used with the WPML plugin, these fields will be returned in the current language.Flynt\Utils\Options::addGlobal
Adds fields into a new group inside the Global Options options page. When used with WPML, these fields will always be returned from the primary language. In this way these fields are global and cannot be translated.Flynt\Utils\Options::getTranslatable
Retrieve a translatable option.Flynt\Utils\Options::getGlobal
Retrieve a global option.
Timber Dynamic Resize & WebP Generation
Timber provides a resize
filter to resize images on first page load. Resizing many images at the same time can result in a server timeout.
That's why Flynt provides a resizeDynamic
filter, that resizes images asynchronously upon first request of the image itself. The filter optionally generates additional WebP file versions for faster loading times.
Resized images are stored in uploads/resized
. To regenerate all image sizes and file versions, delete the folder.
To enable Dynamic Resize and WebP Support, go to Global Options -> Timber Dynamic Resize.
Troubleshooting
If resizedDynamic
is enabled and image requests result in 404 errors, try the following solutions:
- If you're using nginx and the server (not WordPress) responds with a 404 error, check your server configuration against the recommended standard. If the standard configuration cannot be used, resolve the image requests correctly by adding the following rule to your configuration:
location ~ "^(.*)/wp-content/uploads/(.*)$" {
try_files $uri $uri/ /index.php$is_args$args;
}
- Some plugins (like WPML) manipulate the
home_url
in such a way thatresizeDynamic
cannot resolve the path to images correctly. In that case, set the relative upload path manually in Global Options -> Timber Dynamic Resize. Example: The relative upload path in Bedrock installs with WPML needs to bet set toapp/uploads
.
Troubleshooting
Images
In some setups images may not show up, returning a 404 by the server.
The most common reason for this is that you are using nginx and your server is not set up in the default way. You can see that this is the case, if an image url return a 404 from nginx, not from WordPress itself.
In this case, please add something like
location ~ "^(.*)/wp-content/uploads/(.*)$" {
try_files $uri $uri/ /index.php$is_args$args;
}
to your site config.
Other issues might come from Flynt not being able to determine the relative url of your uploads folder. If you have a non-standard WordPress folder structure, or if you use a plugin that manipulates home_url
(for example, WPML) this can cause problems when using resizeDynamic
.
In this care try to set the relative upload path manually and refresh the permalink settings in the back-end:
add_filter('Flynt/TimberDynamicResize/relativeUploadDir', function () {
return '/app/uploads'; // Example for Bedrock installs.
});
Browsersync
If browsersync is not working and you are not serving WordPress on https, try changing the browsersync.https
value to false
in the file build-config.js
.
Maintainers
This project is maintained by bleech.
The main people in charge of this repo are:
Contributing
To contribute, please use GitHub issues. Pull requests are accepted. Please also take a moment to read the Contributing Guidelines and Code of Conduct.
If editing the README, please conform to the standard-readme specification.
License
MIT © bleech