Gatsby changes to hide drafts
const path = require(`path`) | |
const { createFilePath } = require(`gatsby-source-filesystem`) | |
const isProduction = process.env.NODE_ENV === `production`; | |
exports.createPages = async ({ graphql, actions, reporter }) => { | |
const { createPage } = actions | |
// Define a template for blog post | |
const blogPost = path.resolve(`./src/templates/blog-post.js`) | |
// Get all markdown blog posts sorted by date | |
const result = await graphql( | |
` | |
{ | |
allMarkdownRemark( | |
sort: { fields: [frontmatter___date], order: ASC } | |
limit: 1000 | |
) { | |
nodes { | |
id | |
fields { | |
slug, | |
isDraft | |
} | |
} | |
} | |
} | |
` | |
) | |
if (result.errors) { | |
reporter.panicOnBuild( | |
`There was an error loading your blog posts`, | |
result.errors | |
) | |
return | |
} | |
const posts = result.data.allMarkdownRemark.nodes | |
// Create blog posts pages | |
// But only if there's at least one markdown file found at "content/blog" (defined in gatsby-config.js) | |
// `context` is available in the template as a prop and as a variable in GraphQL | |
if (posts.length > 0) { | |
posts.forEach((post, index) => { | |
// Do not expose drafts as pages | |
if(post.fields.isDraft && isProduction) { | |
return; | |
} | |
const previousPostId = index === 0 ? null : posts[index - 1].id | |
const nextPostId = index === posts.length - 1 ? null : posts[index + 1].id | |
createPage({ | |
path: post.fields.slug, | |
component: blogPost, | |
context: { | |
id: post.id, | |
previousPostId, | |
nextPostId, | |
}, | |
}) | |
}) | |
} | |
} | |
exports.onCreateNode = ({ node, actions, getNode }) => { | |
const { createNodeField } = actions | |
if (node.internal.type === `MarkdownRemark`) { | |
const slug = createFilePath({ node, getNode }) | |
createNodeField({ | |
name: `slug`, | |
node, | |
value: slug, | |
}); | |
if(isProduction) { | |
const isDraft = slug.indexOf('/draft') === 0; | |
createNodeField({ | |
name: `isDraft`, | |
node, | |
value: isDraft, | |
}) | |
} | |
} | |
} | |
exports.createSchemaCustomization = ({ actions }) => { | |
const { createTypes } = actions | |
// Explicitly define the siteMetadata {} object | |
// This way those will always be defined even if removed from gatsby-config.js | |
// Also explicitly define the Markdown frontmatter | |
// This way the "MarkdownRemark" queries will return `null` even when no | |
// blog posts are stored inside "content/blog" instead of returning an error | |
createTypes(` | |
type SiteSiteMetadata { | |
author: Author | |
siteUrl: String | |
social: Social | |
} | |
type Author { | |
name: String | |
summary: String | |
} | |
type Social { | |
twitter: String | |
} | |
type MarkdownRemark implements Node { | |
frontmatter: Frontmatter | |
fields: Fields | |
} | |
type Frontmatter { | |
title: String | |
description: String | |
date: Date @dateformat | |
} | |
type Fields { | |
slug: String, | |
isDraft: Boolean | |
} | |
`) | |
} |
// src/pages/index.js | |
import React from "react" | |
import { Link, graphql } from "gatsby" | |
import Bio from "../components/bio" | |
import Layout from "../components/layout" | |
import SEO from "../components/seo" | |
const BlogIndex = ({ data, location }) => { | |
const siteTitle = data.site.siteMetadata?.title || `Title` | |
const posts = data.allMarkdownRemark.nodes.filter(n => { | |
if(n.fields['isDraft']) { | |
return false; | |
} | |
return true; | |
}); | |
if (posts.length === 0) { | |
return ( | |
<Layout location={location} title={siteTitle}> | |
<SEO title="All posts" /> | |
<Bio /> | |
<p> | |
No blog posts found. Add markdown posts to "content/blog" (or the | |
directory you specified for the "gatsby-source-filesystem" plugin in | |
gatsby-config.js). | |
</p> | |
</Layout> | |
) | |
} | |
return ( | |
<Layout location={location} title={siteTitle}> | |
<SEO title="All posts" /> | |
<Bio /> | |
<ol style={{ listStyle: `none` }}> | |
{posts.map(post => { | |
const title = post.frontmatter.title || post.fields.slug | |
return ( | |
<li key={post.fields.slug}> | |
<article | |
className="post-list-item" | |
itemScope | |
itemType="http://schema.org/Article" | |
> | |
<header> | |
<h2> | |
<Link to={post.fields.slug} itemProp="url"> | |
<span itemProp="headline">{title}</span> | |
</Link> | |
</h2> | |
<small>{post.frontmatter.date}</small> | |
</header> | |
<section> | |
<p | |
dangerouslySetInnerHTML={{ | |
__html: post.frontmatter.description || post.excerpt, | |
}} | |
itemProp="description" | |
/> | |
</section> | |
</article> | |
</li> | |
) | |
})} | |
</ol> | |
</Layout> | |
) | |
} | |
export default BlogIndex | |
export const pageQuery = graphql` | |
query { | |
site { | |
siteMetadata { | |
title | |
} | |
} | |
allMarkdownRemark(sort: { fields: [frontmatter___date], order: DESC }) { | |
nodes { | |
excerpt | |
fields { | |
slug, | |
isDraft | |
} | |
frontmatter { | |
date(formatString: "MMMM DD, YYYY") | |
title | |
description | |
} | |
} | |
} | |
} | |
` |
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