Initial Value Templates Commynity Digest Example for Sanity.io

initialValueTemplates.js

import T from '@sanity/base/initial-value-template-builder'
import client from 'part:@sanity/base/client'

const getNextDigestTitle = async () => {
  const titles = await client.fetch(`*[
      _type == "post" &&
      title match "Community Digest*"
    ].title
  `)
  
  const highestNumber = titles
    .map(title => title.match(/#(\d+)/)[1])
    .sort((a, b) => b - a)[0]
  return `Community Digest #${Number(highestNumber) + 1}`
}

export default [
  ...T.defaults(),
  T.template({
    id: 'communityDigestPost',
    title: 'New community digest',
    schemaType: 'post',
    value: async () => {
      const title = await getNextDigestTitle()
      return {
        title,
        shortTitle: title,
        authors: [
          {
            // Knut Melvær
            _ref: '14165126-a0fd-4e5e-96af-686d36f408e0',
            _type: 'reference'
          }
        ],
        text: [
          {
            _type: 'block',
            style: 'h2',
            markDefs: [],
            children: [
              {
                _type: 'span',
                text: 'Community Hightlights',
                marks: []
              }
            ]
          },
          {
            style: 'h2',
            _type: 'block',
            markDefs: [],
            children: [
              {
                _type: 'span',
                text: 'Built with Sanity',
                marks: []
              }
            ]
          }
        ]
      }
    }
  })
]