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1 | 1 | const createSlug = require('./src/util/createSlug'); |
| 2 | +const path = require('path'); |
2 | 3 |
|
3 | | -exports.onCreatePage = async ({ page, actions }) => { |
4 | | - const { createPage, deletePage } = actions |
| 4 | +exports.createPages = ({ graphql, actions }) => { |
| 5 | + const { createPage, createRedirect, createNodeField } = actions; |
5 | 6 |
|
6 | | - // If this is the learn page, accept all following paths. |
7 | | - console.log(page.path); |
8 | | - if (!!~page.path.indexOf('/learn')) { |
9 | | - deletePage(page); |
10 | | - createPage({ |
11 | | - ...page, |
12 | | - path: '/' |
13 | | - }); |
14 | | - createPage({ |
15 | | - ...page, |
16 | | - matchPath: "/learn/*", |
17 | | - }); |
18 | | - } |
19 | | -} |
| 7 | + return new Promise((resolve, reject) => { |
| 8 | + const docTemplate = path.resolve('./src/templates/learn.tsx'); |
| 9 | + |
| 10 | + resolve( |
| 11 | + graphql( |
| 12 | + ` |
| 13 | + { |
| 14 | + allMarkdownRemark( |
| 15 | + filter: { fields: { slug: { ne: "" } } } |
| 16 | + sort: { fields: [fileAbsolutePath], order: ASC } |
| 17 | + ) { |
| 18 | + edges { |
| 19 | + node { |
| 20 | + id |
| 21 | + fileAbsolutePath |
| 22 | + html |
| 23 | + parent { |
| 24 | + ... on File { |
| 25 | + relativePath |
| 26 | + } |
| 27 | + } |
| 28 | + frontmatter { |
| 29 | + title |
| 30 | + description |
| 31 | + authors |
| 32 | + section |
| 33 | + } |
| 34 | + fields { |
| 35 | + slug |
| 36 | + } |
| 37 | + } |
| 38 | + next { |
| 39 | + frontmatter { |
| 40 | + title |
| 41 | + } |
| 42 | + fields { |
| 43 | + slug |
| 44 | + } |
| 45 | + } |
| 46 | + previous { |
| 47 | + frontmatter { |
| 48 | + title |
| 49 | + } |
| 50 | + fields { |
| 51 | + slug |
| 52 | + } |
| 53 | + } |
| 54 | + } |
| 55 | + } |
| 56 | + } |
| 57 | + ` |
| 58 | + ).then(result => { |
| 59 | + if (result.errors) { |
| 60 | + console.log(result.errors); |
| 61 | + reject(result.errors); |
| 62 | + } |
| 63 | + const { edges } = result.data.allMarkdownRemark; |
| 64 | + let navigationData = {}; |
| 65 | + const docPages = []; |
| 66 | + edges.forEach(({ node }, index) => { |
| 67 | + const { |
| 68 | + fields: { slug, authors }, |
| 69 | + frontmatter: { title, section }, |
| 70 | + parent: { relativePath }, |
| 71 | + } = node; |
| 72 | + |
| 73 | + let previousNodeData = undefined; |
| 74 | + const previousNode = index === 0 ? undefined : edges[index - 1].node; |
| 75 | + if (previousNode) { |
| 76 | + previousNodeData = { |
| 77 | + slug: previousNode.fields.slug, |
| 78 | + title: previousNode.frontmatter.title, |
| 79 | + }; |
| 80 | + } |
| 81 | + |
| 82 | + let nextNodeData = undefined; |
| 83 | + const nextNode = |
| 84 | + index === edges.length - 1 ? undefined : edges[index + 1].node; |
| 85 | + if (nextNode) { |
| 86 | + nextNodeData = { |
| 87 | + slug: nextNode.fields.slug, |
| 88 | + title: nextNode.frontmatter.title, |
| 89 | + }; |
| 90 | + } |
| 91 | + |
| 92 | + let data; |
| 93 | + if (!navigationData[section]) { |
| 94 | + data = { title, slug, section }; |
| 95 | + navigationData = { ...navigationData, [section]: [data] }; |
| 96 | + } else { |
| 97 | + data = { title, slug, section }; |
| 98 | + navigationData = { |
| 99 | + ...navigationData, |
| 100 | + [section]: [...navigationData[section], data], |
| 101 | + }; |
| 102 | + } |
| 103 | + docPages.push({ |
| 104 | + slug, |
| 105 | + next: nextNodeData, |
| 106 | + previous: previousNodeData, |
| 107 | + relativePath, |
| 108 | + }); |
| 109 | + }); |
| 110 | + |
| 111 | + docPages.forEach(page => { |
| 112 | + createPage({ |
| 113 | + path: `/${page.slug}`, |
| 114 | + component: docTemplate, |
| 115 | + context: { |
| 116 | + slug: page.slug, |
| 117 | + next: page.next, |
| 118 | + previous: page.previous, |
| 119 | + relativePath: page.relativePath, |
| 120 | + navigationData: navigationData, |
| 121 | + }, |
| 122 | + }); |
| 123 | + if (page.slug === 'introduction-to-nodejs') |
| 124 | + createPage({ |
| 125 | + path: `/`, |
| 126 | + component: docTemplate, |
| 127 | + context: { |
| 128 | + slug: page.slug, |
| 129 | + next: page.next, |
| 130 | + previous: page.previous, |
| 131 | + relativePath: page.relativePath, |
| 132 | + navigationData: navigationData, |
| 133 | + }, |
| 134 | + }) |
| 135 | + }); |
| 136 | + }) |
| 137 | + ); |
| 138 | + }); |
| 139 | +}; |
20 | 140 |
|
21 | 141 | exports.onCreateNode = ({ node, getNode, actions }) => { |
22 | 142 | if (node.internal.type === 'MarkdownRemark') { |
23 | 143 | const { createNodeField } = actions; |
| 144 | + |
24 | 145 | const slug = createSlug(node.frontmatter.title); |
25 | 146 | createNodeField({ |
26 | 147 | node, |
27 | 148 | name: `slug`, |
28 | 149 | value: slug, |
29 | 150 | }); |
| 151 | + |
| 152 | + let authors = node.frontmatter.authors; |
| 153 | + if (authors) { |
| 154 | + authors = authors.split(','); |
| 155 | + createNodeField({ |
| 156 | + node, |
| 157 | + name: `authors`, |
| 158 | + value: authors, |
| 159 | + }); |
| 160 | + } |
30 | 161 | } |
31 | | -} |
| 162 | +}; |
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