| import { DocumentTextIcon } from "@sanity/icons"; |
| import { format, parseISO } from "date-fns"; |
| import { defineField, defineType } from "sanity"; |
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| import authorType from "./author"; |
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| export default defineType({ |
| name: "post", |
| title: "Post", |
| icon: DocumentTextIcon, |
| type: "document", |
| fields: [ |
| defineField({ |
| name: "title", |
| title: "Title", |
| type: "string", |
| validation: (rule) => rule.required(), |
| }), |
| defineField({ |
| name: "slug", |
| title: "Slug", |
| type: "slug", |
| description: "A slug is required for the post to show up in the preview", |
| options: { |
| source: "title", |
| maxLength: 96, |
| isUnique: (value, context) => context.defaultIsUnique(value, context), |
| }, |
| validation: (rule) => rule.required(), |
| }), |
| defineField({ |
| name: "content", |
| title: "Content", |
| type: "array", |
| of: [{ type: "block" }], |
| }), |
| defineField({ |
| name: "excerpt", |
| title: "Excerpt", |
| type: "text", |
| }), |
| defineField({ |
| name: "coverImage", |
| title: "Cover Image", |
| type: "image", |
| options: { |
| hotspot: true, |
| aiAssist: { |
| imageDescriptionField: "alt", |
| }, |
| }, |
| fields: [ |
| { |
| name: "alt", |
| type: "string", |
| title: "Alternative text", |
| description: "Important for SEO and accessiblity.", |
| validation: (rule) => { |
| return rule.custom((alt, context) => { |
| if ((context.document?.coverImage as any)?.asset?._ref && !alt) { |
| return "Required"; |
| } |
| return true; |
| }); |
| }, |
| }, |
| ], |
| validation: (rule) => rule.required(), |
| }), |
| defineField({ |
| name: "date", |
| title: "Date", |
| type: "datetime", |
| initialValue: () => new Date().toISOString(), |
| }), |
| defineField({ |
| name: "author", |
| title: "Author", |
| type: "reference", |
| to: [{ type: authorType.name }], |
| }), |
| ], |
| preview: { |
| select: { |
| title: "title", |
| author: "author.name", |
| date: "date", |
| media: "coverImage", |
| }, |
| prepare({ title, media, author, date }) { |
| const subtitles = [ |
| author && `by ${author}`, |
| date && `on ${format(parseISO(date), "LLL d, yyyy")}`, |
| ].filter(Boolean); |
|
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| return { title, media, subtitle: subtitles.join(" ") }; |
| }, |
| }, |
| }); |
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|
