feat: WIP prepare db migration

Author: Benny Burkert

backend/package-lock.json

@@ -1,6 +1,6 @@
 import { ApiProperty } from '@nestjs/swagger';
 import { IsArray, IsDefined, IsEnum, IsOptional, IsString } from 'class-validator';
-import { VisibilityType } from 'src/domain/prompt/interfaces';
+import { VisibilityType } from 'src/domain/prompt';
 
 export class CreatePromptCategoryDto {
   @ApiProperty({

backend/src/controllers/prompts/dtos/index.ts

@@ -11,3 +11,5 @@ export * from './setting';
 export * from './usage';
 export * from './user';
 export * from './user-group';
+export * from './prompt';
+export * from './prompt-category';

backend/src/domain/database/entities/index.ts

@@ -1,13 +1,10 @@
-import { Column, Entity, PrimaryGeneratedColumn } from 'typeorm';
+import { Column, Entity, PrimaryColumn } from 'typeorm';
+import { VisibilityType } from 'src/domain/prompt';
 import { schema } from '../typeorm.helper';
-import { VisibilityType } from 'src/domain/prompt/interfaces';
 
 @Entity({ name: 'prompt-categories', schema })
 export class PromptCategoryEntity {
-  @PrimaryGeneratedColumn()
-  id!: string;
-
-  @Column({ nullable: true })
+  @PrimaryColumn()
   label!: string;
 
   @Column()

backend/src/domain/database/entities/prompt-category.ts

@@ -1,6 +1,6 @@
-import { Column, Entity, OneToMany, PrimaryGeneratedColumn } from 'typeorm';
+import { Column, Entity, JoinTable, ManyToMany, PrimaryGeneratedColumn } from 'typeorm';
+import { VisibilityType } from 'src/domain/prompt';
 import { schema } from '../typeorm.helper';
-import { VisibilityType } from 'src/domain/prompt/interfaces';
 import { PromptCategoryEntity } from './prompt-category';
 
 @Entity({ name: 'prompts', schema })
@@ -17,8 +17,9 @@ export class PromptEntity {
   @Column({ nullable: false })
   content!: string;
 
-  @OneToMany(() => PromptEntity, (prompt) => prompt.categories)
-  categories?: [string];
+  @ManyToMany(() => PromptCategoryEntity)
+  @JoinTable()
+  categories?: PromptCategoryEntity[];
 
   @Column()
   visibility!: VisibilityType;

backend/src/domain/database/entities/prompt.ts

@@ -0,0 +1 @@
+export * from './interfaces';