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ghost/core/server/controllers/frontend/templates.js
Hannah Wolfe f8b498d6e7 🔥 No more availableThemes (#8085)
no issue

🎨 Switch themes API to use config.availableThemes
- this gets rid of the only places where settings.availableThemes are used

🔥 Get rid of settings.availableThemes
- this is no longer used anywhere
- also get rid of every related call to updateSettingsCache

🔥 Replace config.availableThemes with theme cache
- Creates a tailor-made in-memory cache for themes inside the theme module
- Add methods for getting & setting items on the cache
- Move all references to config.availableThemes to use the new cache
- This can be abstracted later to support other kinds of caches?

🎨 Start improving theme lib's API
Still TODO: simplifying/clarifying:
- what is the structure of the internal list
- what is the difference between a package list, and a theme list?
- what is the difference between reading a theme and loading it?
- how do we update the theme list (add/remove)
- how do we refresh the theme list? (hot reload?!)
- how do we get from an internal list, to one that is sent as part of the API?
- how are we going to handle theme storage: read/write, such that the path is configurable

🎨 Use themeList consistently
🎨 Update list after storage
2017-03-02 17:53:48 +01:00

100 lines
2.8 KiB
JavaScript

// # Templates
//
// Figure out which template should be used to render a request
// based on the templates which are allowed, and what is available in the theme
var _ = require('lodash'),
themeList = require('../../themes').list;
function getActiveThemePaths(activeTheme) {
return themeList.get(activeTheme);
}
/**
* ## Get Channel Template Hierarchy
*
* Fetch the ordered list of templates that can be used to render this request.
* 'index' is the default / fallback
* For channels with slugs: [:channelName-:slug, :channelName, index]
* For channels without slugs: [:channelName, index]
* Channels can also have a front page template which is used if this is the first page of the channel, e.g. 'home.hbs'
*
* @param {Object} channelOpts
* @returns {String[]}
*/
function getChannelTemplateHierarchy(channelOpts) {
var templateList = ['index'];
if (channelOpts.name && channelOpts.name !== 'index') {
templateList.unshift(channelOpts.name);
if (channelOpts.slugTemplate && channelOpts.slugParam) {
templateList.unshift(channelOpts.name + '-' + channelOpts.slugParam);
}
}
if (channelOpts.frontPageTemplate && channelOpts.postOptions.page === 1) {
templateList.unshift(channelOpts.frontPageTemplate);
}
return templateList;
}
/**
* ## Get Single Template Hierarchy
*
* Fetch the ordered list of templates that can be used to render this request.
* 'post' is the default / fallback
* For posts: [post-:slug, post]
* For pages: [page-:slug, page, post]
*
* @param {Object} single
* @returns {String[]}
*/
function getSingleTemplateHierarchy(single) {
var templateList = ['post'],
type = 'post';
if (single.page) {
templateList.unshift('page');
type = 'page';
}
templateList.unshift(type + '-' + single.slug);
return templateList;
}
/**
* ## Pick Template
*
* Taking the ordered list of allowed templates for this request
* Cycle through and find the first one which has a match in the theme
*
* @param {Object} themePaths
* @param {Array} templateList
*/
function pickTemplate(themePaths, templateList) {
var template = _.find(templateList, function (template) {
return themePaths.hasOwnProperty(template + '.hbs');
});
if (!template) {
template = templateList[templateList.length - 1];
}
return template;
}
function getTemplateForSingle(activeTheme, single) {
return pickTemplate(getActiveThemePaths(activeTheme), getSingleTemplateHierarchy(single));
}
function getTemplateForChannel(activeTheme, channelOpts) {
return pickTemplate(getActiveThemePaths(activeTheme), getChannelTemplateHierarchy(channelOpts));
}
module.exports = {
getActiveThemePaths: getActiveThemePaths,
channel: getTemplateForChannel,
single: getTemplateForSingle
};