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gatsby-node.js
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gatsby-node.js
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const {createFilePath} = require('gatsby-source-filesystem')
const path = require('path')
module.exports.onCreateNode = ({node, actions, getNode }) => {
const {createNodeField} = actions
if (node.internal.type === 'MarkdownRemark') {
const parent = getNode(node.parent)
const collection = parent.sourceInstanceName
const fileDir = path.dirname(node.fileAbsolutePath)
const relativeFilePath = createFilePath({node, getNode})
createNodeField({
node,
name: 'collection',
value: collection
})
createNodeField({
node,
name: 'changeTime',
value: parent.changeTime
})
createNodeField({
node,
name: 'slug',
value: `/${collection}${relativeFilePath}`
})
createNodeField({
node,
name: 'dir',
value: fileDir
})
}
}
module.exports.createPages = async ({ graphql, actions }) => {
const { createPage } = actions
const blogTemplate = path.resolve('./src/templates/post.js')
const pageTemplate = path.resolve('./src/templates/page.js')
const pages = await graphql(`
query markdownPages {
allMarkdownRemark
(
filter: {
frontmatter: { published: { eq: true } } }
)
{
edges {
node {
fields {
collection
slug
dir
}
}
}
}
}
`)
pages.data.allMarkdownRemark.edges.forEach( edge => {
createPage({
component: ['blog', 'student-blog'].includes(edge.node.fields.collection) ? blogTemplate : pageTemplate,
path: `${edge.node.fields.slug}`,
context: {
slug: edge.node.fields.slug,
dir: edge.node.fields.dir
}
})
})
}