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gatsby-node.js
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gatsby-node.js
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const path = require('path');
exports.createPages = async ({ graphql, actions }) => {
const { createPage } = actions;
const singleEvent = path.resolve('./src/templates/event.js');
const result = await graphql(`
query GetEvents {
allEvent(sort: {date: ASC}) {
edges {
node {
id
name
slug
image {
extension
url
width
height
localFile {
publicURL
childImageSharp {
gatsbyImageData(layout: FULL_WIDTH)
}
}
}
address
date
price
description
excerpt
gallery {
localFile {
publicURL
}
}
}
}
}
}
`);
if (result.errors) {
throw result.errors;
}
let events = result.data.allEvent.edges;
const today = new Date();
const filterDate = new Date(`${today.getFullYear()}-${(today.getMonth() + 1).toString().padStart(2, '0')}-01`);
events = events.filter((event) => new Date(event.node.date) > filterDate);
// Create paginated index
const eventsPerPage = 5;
const numPages = Math.ceil(events.length / eventsPerPage);
Array.from({ length: numPages }).forEach((item, i) => {
createPage({
path: i === 0 ? '/' : `/${i + 1}`,
component: path.resolve('./src/templates/index.js'),
context: {
limit: eventsPerPage,
skip: i * eventsPerPage,
numPages,
currentPage: i + 1,
events: events.slice(i * eventsPerPage, i * eventsPerPage + eventsPerPage),
},
});
});
// Create events pages.
events.forEach((event, index) => {
const next = index === events.length - 1 ? null : events[index + 1].node;
const previous = index === 0 ? null : events[index - 1].node;
createPage({
path: event.node.slug,
component: singleEvent,
context: {
slug: event.node.slug,
previous,
next,
nextEvents: events.slice(index + 1, index + 4),
},
});
});
};