fix: search file collections using top level file fields (#3948)

packages/netlify-cms-core/src/__tests__/backend.spec.js

@@ -2,6 +2,7 @@ import { resolveBackend, Backend, extractSearchFields } from '../backend';
 import registry from 'Lib/registry';
 import { FOLDER } from 'Constants/collectionTypes';
 import { Map, List, fromJS } from 'immutable';
+import { FILES } from '../constants/collectionTypes';
 
 jest.mock('Lib/registry');
 jest.mock('netlify-cms-lib-util');
@@ -555,6 +556,23 @@ describe('Backend', () => {
       { path: 'pages/not-me.md', slug: 'not-me', data: { title: 'not me' } },
     ];
 
+    const files = [
+      {
+        path: 'files/file1.md',
+        slug: 'file1',
+        data: {
+          author: 'find me by author',
+        },
+      },
+      {
+        path: 'files/file2.md',
+        slug: 'file2',
+        data: {
+          other: 'find me by other',
+        },
+      },
+    ];
+
     const implementation = {
       init: jest.fn(() => implementation),
     };
@@ -570,6 +588,9 @@ describe('Backend', () => {
         if (collection.get('name') === 'pages') {
           return Promise.resolve(pages);
         }
+        if (collection.get('name') === 'files') {
+          return Promise.resolve(files);
+        }
         return Promise.resolve([]);
       });
     });
@@ -609,6 +630,32 @@ describe('Backend', () => {
       });
     });
 
+    it('should search in file collection using top level fields', async () => {
+      const collections = [
+        fromJS({
+          name: 'files',
+          files: [
+            {
+              name: 'file1',
+              fields: [{ name: 'author', widget: 'string' }],
+            },
+            {
+              name: 'file2',
+              fields: [{ name: 'other', widget: 'string' }],
+            },
+          ],
+          type: FILES,
+        }),
+      ];
+
+      expect(await backend.search(collections, 'find me by author')).toEqual({
+        entries: [files[0]],
+      });
+      expect(await backend.search(collections, 'find me by other')).toEqual({
+        entries: [files[1]],
+      });
+    });
+
     it('should query collections by title', async () => {
       const results = await backend.query(collections[0], ['title'], 'find me by title');
 

packages/netlify-cms-core/src/backend.ts

@@ -36,6 +36,7 @@ import {
   blobToFileObj,
   asyncLock,
   AsyncLock,
+  UnpublishedEntry,
 } from 'netlify-cms-lib-util';
 import { basename, join, extname, dirname } from 'path';
 import { status } from './constants/publishModes';
@@ -54,7 +55,6 @@ import {
 import AssetProxy from './valueObjects/AssetProxy';
 import { FOLDER, FILES } from './constants/collectionTypes';
 import { selectCustomPath } from './reducers/entryDraft';
-import { UnpublishedEntry } from 'netlify-cms-lib-util/src/implementation';
 
 const { extractTemplateVars, dateParsers } = stringTemplate;
 
@@ -446,20 +446,33 @@ export class Backend {
         const summaryFields = extractTemplateVars(summary);
 
         // TODO: pass search fields in as an argument
-        const searchFields = [
-          selectInferedField(collection, 'title'),
-          selectInferedField(collection, 'shortTitle'),
-          selectInferedField(collection, 'author'),
-          ...summaryFields.map(elem => {
-            if (dateParsers[elem]) {
-              return selectInferedField(collection, 'date');
-            }
-            return elem;
-          }),
-        ].filter(Boolean) as string[];
+        let searchFields: (string | null | undefined)[] = [];
+
+        if (collection.get('type') === FILES) {
+          collection.get('files')?.forEach(f => {
+            const topLevelFields = f!
+              .get('fields')
+              .map(f => f!.get('name'))
+              .toArray();
+            searchFields = [...searchFields, ...topLevelFields];
+          });
+        } else {
+          searchFields = [
+            selectInferedField(collection, 'title'),
+            selectInferedField(collection, 'shortTitle'),
+            selectInferedField(collection, 'author'),
+            ...summaryFields.map(elem => {
+              if (dateParsers[elem]) {
+                return selectInferedField(collection, 'date');
+              }
+              return elem;
+            }),
+          ];
+        }
+        const filteredSearchFields = searchFields.filter(Boolean) as string[];
         const collectionEntries = await this.listAllEntries(collection);
         return fuzzy.filter(searchTerm, collectionEntries, {
-          extract: extractSearchFields(uniq(searchFields)),
+          extract: extractSearchFields(uniq(filteredSearchFields)),
         });
       })
       .map(p =>