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886f564dc4
closes https://github.com/TryGhost/Team/issues/485 In order to loop over all posts, we currently need to pass a visibility="all" flag to a foreach as default for all items in current `visibility` helper is set to `public`. For a post, this behaviour is unintuitive, and inconsistent with the API. Instead, the default visibility should be "all" for the posts. The update allows themes to get all posts directly without passing in visibility - ``` {{#get "posts"}} {{#foreach posts}} //Loops over all posts, not just `public` {{/foreach}} {{/get}} ```
107 lines
3.4 KiB
JavaScript
107 lines
3.4 KiB
JavaScript
// # Foreach Helper
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// Usage: `{{#foreach data}}{{/foreach}}`
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//
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// Block helper designed for looping through posts
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const _ = require('lodash');
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const {logging, i18n, hbs, checks} = require('../services/proxy');
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const {Utils: hbsUtils, handlebars: {createFrame}} = hbs;
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const ghostHelperUtils = require('@tryghost/helpers').utils;
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module.exports = function foreach(items, options) {
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if (!options) {
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logging.warn(i18n.t('warnings.helpers.foreach.iteratorNeeded'));
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}
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if (hbsUtils.isFunction(items)) {
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items = items.call(this);
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}
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let visibility = options.hash.visibility;
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if (_.isArray(items) && items.length > 0 && checks.isPost(items[0])) {
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visibility = visibility || 'all';
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} else if (_.isObject(items) && _.isArray(Object.values(items))) {
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if (Object.values(items).length > 0 && checks.isPost(Object.values(items)[0])) {
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visibility = visibility || 'all';
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}
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}
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// Exclude items which should not be visible in the theme
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items = ghostHelperUtils.visibility.filter(items, visibility);
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// Initial values set based on parameters sent through. If nothing sent, set to defaults
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const {fn, inverse, hash, data, ids} = options;
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let {columns, limit, from, to} = hash;
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let length = _.size(items);
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let output = '';
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let frame;
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let contextPath;
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limit = parseInt(limit, 10) || length;
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from = parseInt(from, 10) || 1;
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to = parseInt(to, 10) || length;
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// If a limit option was sent through (aka not equal to default (length))
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// and from plus limit is less than the length, set to to the from + limit
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if ((limit < length) && ((from + limit) <= length)) {
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to = (from - 1) + limit;
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}
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if (data && ids) {
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contextPath = hbsUtils.appendContextPath(data.contextPath, ids[0]) + '.';
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}
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if (data) {
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frame = createFrame(data);
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}
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function execIteration(field, index, last) {
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if (frame) {
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frame.key = field;
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frame.index = index;
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frame.number = index + 1;
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frame.first = index === from - 1; // From uses 1-indexed, but array uses 0-indexed
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frame.last = !!last;
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frame.even = index % 2 === 1;
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frame.odd = !frame.even;
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frame.rowStart = index % columns === 0;
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frame.rowEnd = index % columns === (columns - 1);
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if (contextPath) {
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frame.contextPath = contextPath + field;
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}
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}
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output = output + fn(items[field], {
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data: frame,
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blockParams: hbsUtils.blockParams([items[field], field], [contextPath + field, null])
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});
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}
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function iterateCollection(context) {
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// Context is all posts on the blog
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let current = 1;
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// For each post, if it is a post number that fits within the from and to
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// send the key to execIteration to set to be added to the page
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_.each(context, (value, key) => {
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if (current < from) {
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current += 1;
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return;
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}
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if (current <= to) {
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execIteration(key, current - 1, current === to);
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}
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current += 1;
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});
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}
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if (items && typeof items === 'object') {
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iterateCollection(items);
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}
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if (length === 0) {
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output = inverse(this);
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}
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return output;
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};
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