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gatsby-node.js
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gatsby-node.js
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const { resolve } = require('path')
const { filenameToURL, normalizeURL } = require('./src/shared/url')
exports.createPages = ({ actions, graphql }) => {
const { createPage } = actions
const wikiPage = resolve(__dirname, './src/templates/WikiPage.js')
const wikiCategoryPage = resolve(
__dirname,
'./src/templates/WikiCategoryPage.js'
)
return graphql(`
query CreatePagesQuery {
wikis: allMarkdownRemark {
edges {
node {
id
fileAbsolutePath
frontmatter {
category
}
}
}
}
}
`).then(({ errors, data }) => {
if (errors) {
return Promise.reject(errors)
}
const uniqueCategories = new Set()
const {
wikis: { edges }
} = data
// Create a page for each Wiki item
edges.forEach(({ node }) => {
const filename = filenameToURL(node.fileAbsolutePath, '.md')
const wikiPath = `/wiki/${filename}`
uniqueCategories.add(node.frontmatter.category)
createPage({
path: wikiPath,
component: wikiPage,
context: {
id: node.id
}
})
})
// Create a page for each Wiki item category
uniqueCategories.forEach(category => {
const categoryPath = `/category/${normalizeURL(category)}`
createPage({
path: categoryPath,
component: wikiCategoryPage,
context: {
category
}
})
})
})
}