RevisionsService: Get note revision from database

Signed-off-by: David Mehren <git@herrmehren.de>

src/revisions/revision.dto.ts

@@ -1,4 +1,4 @@
-import { IsNumber, IsString } from 'class-validator';
+import { IsDate, IsNumber, IsString } from 'class-validator';
 import { Revision } from './revision.entity';
 
 export class RevisionDto {
@@ -8,4 +8,6 @@ export class RevisionDto {
   content: string;
   @IsString()
   patch: string;
+  @IsDate()
+  createdAt: Date;
 }

src/revisions/revisions.service.ts

@@ -8,12 +8,14 @@ import { Revision } from './revision.entity';
 
 @Injectable()
 export class RevisionsService {
+  private readonly logger = new Logger(RevisionsService.name);
+
   constructor(
     @InjectRepository(Revision)
     private revisionRepository: Repository<Revision>,
     @Inject(NotesService) private notesService: NotesService,
   ) {}
-  private readonly logger = new Logger(RevisionsService.name);
+
   async getNoteRevisionMetadatas(
     noteIdOrAlias: string,
   ): Promise<RevisionMetadataDto[]> {
@@ -26,13 +28,18 @@ export class RevisionsService {
     return revisions.map(revision => this.toMetadataDto(revision));
   }
 
-  getNoteRevision(noteIdOrAlias: string, revisionId: number): RevisionDto {
+  async getNoteRevision(
-    this.logger.warn('Using hardcoded data!');
+    noteIdOrAlias: string,
-    return {
+    revisionId: number,
+  ): Promise<RevisionDto> {
+    const note = await this.notesService.getNoteByIdOrAlias(noteIdOrAlias);
+    const revision = await this.revisionRepository.findOne({
+      where: {
         id: revisionId,
-      content: 'Foobar',
+        note: note,
-      patch: 'barfoo',
+      },
-    };
+    });
+    return this.toDto(revision);
   }
 
   getLatestRevision(noteId: string): Promise<Revision> {
@@ -55,6 +62,15 @@ export class RevisionsService {
     };
   }
 
+  toDto(revision: Revision): RevisionDto {
+    return {
+      id: revision.id,
+      content: revision.content,
+      createdAt: revision.createdAt,
+      patch: revision.patch,
+    };
+  }
+
   createRevision(content: string) {
     // TODO: Add previous revision
     // TODO: Calculate patch