fix(path-meta): apply path meta fields if they exists in schema (#3632)

Author: farnabaz

playground/content.config.ts

@@ -40,7 +40,7 @@ const content = defineCollection({
 })
 
 const data = defineCollection({
-  type: 'page',
+  type: 'data',
   source: 'data/**',
   schema: z.object({
     path: z.string(),

src/utils/content/index.ts

@@ -14,6 +14,7 @@ import type { FileAfterParseHook, FileBeforeParseHook, ModuleOptions, ContentFil
 import { logger } from '../dev'
 import { getOrderedSchemaKeys } from '../../runtime/internal/schema'
 import { transformContent } from './transformers'
+import pathMetaTransformer from './transformers/path-meta'
 
 let parserOptions = {
   mdcConfigs: [] as MdcConfig[],
@@ -169,11 +170,13 @@ export async function createParser(collection: ResolvedCollection, nuxt?: Nuxt)
       ...beforeParseCtx.parserOptions,
       transformers: extraTransformers,
     })
+
+    const collectionKeys = getOrderedSchemaKeys(collection.extendedSchema)
+
     const { id: id, __metadata, ...parsedContentFields } = parsedContent
     const result = { id } as ParsedContentFile
     const meta = {} as Record<string, unknown>
 
-    const collectionKeys = getOrderedSchemaKeys(collection.extendedSchema)
     for (const key of Object.keys(parsedContentFields)) {
       if (collectionKeys.includes(key)) {
         result[key] = parsedContent[key]
@@ -198,6 +201,14 @@ export async function createParser(collection: ResolvedCollection, nuxt?: Nuxt)
       seo.description = seo.description || result.description
     }
 
+    const pathMetaFields = await pathMetaTransformer.transform!(parsedContent, {})
+    const metaFields = ['path', 'title', 'stem', 'extension']
+    for (const key of metaFields) {
+      if (collectionKeys.includes(key) && result[key] === undefined) {
+        result[key] = pathMetaFields[key]
+      }
+    }
+
     const afterParseCtx: FileAfterParseHook = { file: hookedFile, content: result as ParsedContentFile, collection }
     await nuxt?.callHook?.('content:file:afterParse', afterParseCtx)
     return afterParseCtx.content

src/utils/content/transformers/index.ts

@@ -4,15 +4,13 @@ import type { ContentTransformer, TransformContentOptions, ContentFile } from '.
 import csv from './csv'
 import markdown from './markdown'
 import yaml from './yaml'
-import pathMeta from './path-meta'
 import json from './json'
 
 const TRANSFORMERS = [
   csv,
   markdown,
   json,
   yaml,
-  pathMeta,
 ]
 
 function getParser(ext: string, additionalTransformers: ContentTransformer[] = []): ContentTransformer | undefined {

src/utils/content/transformers/json.ts

@@ -25,7 +25,6 @@ export default defineTransformer({
 
     return {
       ...parsed,
-      body: parsed.body || parsed,
       id,
     }
   },

src/utils/content/transformers/markdown.ts

@@ -49,6 +49,7 @@ export default defineTransformer({
           toc: parsed.toc,
         },
         id: file.id,
+        title: parsed.data?.title || undefined,
       }
     }
 
@@ -60,6 +61,7 @@ export default defineTransformer({
         toc: parsed.toc,
       },
       id: file.id,
+      title: parsed.data?.title || undefined,
     }
   },
 })

src/utils/content/transformers/yaml.ts

@@ -17,7 +17,6 @@ export default defineTransformer({
 
     return {
       ...parsed,
-      body: parsed.body || parsed,
       id,
     }
   },