109 lines
2.6 KiB
JavaScript
109 lines
2.6 KiB
JavaScript
import { type, compareDate } from './index'
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/**
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* 过滤非文章页
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* @param {Array} posts 所有文章数据
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*/
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export function filterPosts (posts) {
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posts = posts.filter(item => {
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const { frontmatter: { pageComponent, article, home } } = item
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return !(pageComponent || article === false || home === true) // 存在页面组件、article字段为false，以及首页
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})
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return posts
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}
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/**
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* 按置顶和时间排序
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* @param {Array} posts 过滤非文章页之后的文章数据
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*/
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export function sortPosts (posts) {
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posts.sort((prev, next) => {
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const prevSticky = prev.frontmatter.sticky
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const nextSticky = next.frontmatter.sticky
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if (prevSticky && nextSticky) {
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return prevSticky == nextSticky ? compareDate(prev, next) : (prevSticky - nextSticky)
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} else if (prevSticky && !nextSticky) {
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return -1
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} else if (!prevSticky && nextSticky) {
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return 1
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}
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return compareDate(prev, next)
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})
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return posts
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}
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/**
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* 按时间排序
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* @param {Array} posts 过滤非文章页之后的文章数据
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*/
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export function sortPostsByDate (posts) {
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posts.sort((prev, next) => {
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return compareDate(prev, next)
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})
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return posts
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}
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/**
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* 按分类和标签分组
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* @param {Array} posts 按时间排序之后的文章数据
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*/
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export function groupPosts (posts) {
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const categoriesObj = {}
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const tagsObj = {}
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for (let i = 0, postsL = posts.length; i < postsL; i++) {
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const { frontmatter: { categories, tags } } = posts[i]
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if (type(categories) === 'array') {
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categories.forEach(item => {
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if (item) { // 分类值是有效的
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if (!categoriesObj[item]) {
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categoriesObj[item] = []
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}
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categoriesObj[item].push(posts[i])
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}
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})
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}
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if (type(tags) === 'array') {
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tags.forEach(item => {
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if (item) { // 标签值是有效的
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if (!tagsObj[item]) {
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tagsObj[item] = []
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}
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tagsObj[item].push(posts[i])
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}
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})
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}
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}
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return {
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categories: categoriesObj,
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tags: tagsObj
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}
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}
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/**
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* 获取所有分类和标签
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* @param {Object} groupPosts 按分类和标签分组之后的文章数据
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*/
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export function categoriesAndTags (groupPosts) {
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const categoriesArr = []
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const tagsArr = []
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for (let key in groupPosts.categories) {
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categoriesArr.push({
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key,
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length: groupPosts.categories[key].length
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})
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}
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for (let key in groupPosts.tags) {
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tagsArr.push({
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key,
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length: groupPosts.tags[key].length
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})
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}
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return {
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categories: categoriesArr,
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tags: tagsArr
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}
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}
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