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gatsby-node.js
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gatsby-node.js
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const path = require(`path`);
const slash = require(`slash`);
//Query que devuelve todos los posts y tags
const queryAllPostsAndTags = async graphql => {
const {
data: { posts },
} = await graphql(`
query {
posts {
listPosts {
items {
id
content
title
slug
}
}
listTags {
items {
id
name
slug
}
}
}
}
`);
return posts;
};
const createAllPostPages = async (posts, createPage, postTemplate) => {
posts.forEach(async post => {
const { id, slug } = post;
createPage({
// will be the url for the page
path: `/${slug}`,
// specify the component template of your choice
component: slash(postTemplate),
// In the ^template's GraphQL query, 'id' will be available
// as a GraphQL variable to query for this posts's data.
context: {
id,
},
});
});
};
const createAllBlogPages = async (createPage, template, graphql) => {
await graphql(
`
query somePosts($limit: Int!) {
posts {
postsByCreatedAt(type: "Post", sortDirection: DESC, limit: $limit) {
items {
id
title
content
excerpt
slug
createdAt
featured_media
tags {
items {
tag {
name
}
}
}
authors {
items {
author {
firstName
lastName
}
}
}
}
}
}
}
`,
{ limit: 1000 }
).then(res => {
const { items: posts } = res.data.posts.postsByCreatedAt;
// Create blog list pages (for Blog List Pagination, BLP)
// Assign path /2, /3, p/4, etc
const postsPerPage = 3;
const numPages = Math.ceil(posts.length / postsPerPage);
Array.from({ length: numPages }).forEach((_, i) => {
// Create blog list pages (for Blog List Pagination, BLP)
// Assign path /2, /3, p/4, etc
createPage({
path: i === 0 ? `/publicaciones/` : `/publicaciones/${i + 1}`,
component: slash(template),
context: {
id: `blog-${i + 1}`,
limit: postsPerPage,
skip: i * postsPerPage,
posts: posts.slice(i * postsPerPage, i * postsPerPage + postsPerPage),
numPages,
currentPage: i + 1,
},
});
});
});
};
const createAllTagPages = async (tags, createPage, template, graphql) => {
const promises = [];
tags.forEach(async tag => {
promises.push(
graphql(
`
query($id: ID!, $limit: Int!) {
posts {
postsByTag(tagID: $id, limit: $limit) {
items {
post {
id
title
content
excerpt
slug
createdAt
featured_media
tags {
items {
tag {
id
name
}
}
}
authors {
items {
author {
id
firstName
lastName
}
}
}
}
}
}
}
}
`,
{ limit: 1000, id: tag.id }
)
);
return Promise.all(promises).then(results => {
results.forEach(res => {
const { items: posts } = res.data.posts.postsByTag;
const postsPerPage = 2;
const numPages = Math.ceil(posts.length / postsPerPage);
Array.from({ length: numPages }).forEach((_, i) => {
createPage({
path:
i === 0
? `/publicaciones/${tag.slug}`
: `/publicaciones/${tag.slug}/${i + 1}`,
component: slash(template),
context: {
id: `blog-template-${i + 1}`,
limit: postsPerPage,
skip: i * postsPerPage,
posts: posts.slice(
i * postsPerPage,
i * postsPerPage + postsPerPage
),
numPages,
tagName: tag.name,
slug: tag.slug,
currentPage: i + 1,
},
});
});
});
});
});
};
exports.createPages = async ({ graphql, actions }) => {
const { createPage } = actions;
const postsAndTags = await queryAllPostsAndTags(graphql);
const postTemplate = path.resolve(`./src/components/Post.js`);
const pageTemplate = path.resolve(`./src/components/Blog.js`);
const tagTemplate = path.resolve(`./src/components/Tag.js`);
const { items: posts } = postsAndTags.listPosts;
const { items: tags } = postsAndTags.listTags;
await createAllPostPages(posts, createPage, postTemplate);
await createAllBlogPages(createPage, pageTemplate, graphql);
return createAllTagPages(tags, createPage, tagTemplate, graphql);
};
exports.onCreateWebpackConfig = ({ stage, plugins, actions }) => {
actions.setWebpackConfig({
module: {
rules: [],
},
plugins: [
plugins.define({
__DEVELOPMENT__: stage === `develop` || stage === `develop-html`,
}),
],
node: {
console: true,
fs: 'empty',
net: 'empty',
tls: 'empty',
},
});
};