feat: add object/field create/update resolvers (#1963)

* feat: add object/field create/update resolvers

* fix tests

server/src/metadata/args/create-custom-field.input.ts

@@ -1,21 +0,0 @@
-import { ArgsType, Field } from '@nestjs/graphql';
-
-import { IsNotEmpty, IsString } from 'class-validator';
-
-@ArgsType()
-export class CreateCustomFieldInput {
-  @Field(() => String)
-  @IsNotEmpty()
-  @IsString()
-  displayName: string;
-
-  @Field(() => String)
-  @IsNotEmpty()
-  @IsString()
-  type: string;
-
-  @Field(() => String)
-  @IsNotEmpty()
-  @IsString()
-  objectId: string;
-}

server/src/metadata/field-metadata/dtos/create-field.input.ts

@@ -0,0 +1,51 @@
+import { Field, InputType } from '@nestjs/graphql';
+
+import {
+  IsEnum,
+  IsNotEmpty,
+  IsOptional,
+  IsString,
+  IsUUID,
+} from 'class-validator';
+
+@InputType()
+export class CreateFieldInput {
+  @IsString()
+  @IsNotEmpty()
+  @Field()
+  displayName: string;
+
+  // Todo: use a type enum and share with typeorm entity
+  @IsEnum([
+    'text',
+    'phone',
+    'email',
+    'number',
+    'boolean',
+    'date',
+    'url',
+    'money',
+  ])
+  @IsNotEmpty()
+  @Field()
+  type: string;
+
+  @IsUUID()
+  @Field()
+  objectId: string;
+
+  @IsString()
+  @IsOptional()
+  @Field({ nullable: true })
+  description?: string;
+
+  @IsString()
+  @IsOptional()
+  @Field({ nullable: true })
+  icon?: string;
+
+  @IsString()
+  @IsOptional()
+  @Field({ nullable: true })
+  placeholder?: string;
+}

server/src/metadata/field-metadata/dtos/update-field.input.ts

@@ -0,0 +1,31 @@
+import { Field, InputType } from '@nestjs/graphql';
+
+import { IsBoolean, IsOptional, IsString } from 'class-validator';
+
+@InputType()
+export class UpdateFieldInput {
+  @IsString()
+  @IsOptional()
+  @Field({ nullable: true })
+  displayName: string;
+
+  @IsString()
+  @IsOptional()
+  @Field({ nullable: true })
+  description?: string;
+
+  @IsString()
+  @IsOptional()
+  @Field({ nullable: true })
+  icon?: string;
+
+  @IsString()
+  @IsOptional()
+  @Field({ nullable: true })
+  placeholder?: string;
+
+  @IsBoolean()
+  @IsOptional()
+  @Field({ nullable: true })
+  isActive?: boolean;
+}

server/src/metadata/field-metadata/field-metadata.auto-resolver-opts.ts

@@ -0,0 +1,44 @@
+import { SortDirection } from '@ptc-org/nestjs-query-core';
+import {
+  AutoResolverOpts,
+  PagingStrategies,
+  ReadResolverOpts,
+} from '@ptc-org/nestjs-query-graphql';
+
+import { JwtAuthGuard } from 'src/guards/jwt.auth.guard';
+
+import { FieldMetadata } from './field-metadata.entity';
+
+import { FieldMetadataService } from './services/field-metadata.service';
+import { CreateFieldInput } from './dtos/create-field.input';
+import { UpdateFieldInput } from './dtos/update-field.input';
+
+export const fieldMetadataAutoResolverOpts: AutoResolverOpts<
+  any,
+  any,
+  unknown,
+  unknown,
+  ReadResolverOpts<any>,
+  PagingStrategies
+>[] = [
+  {
+    EntityClass: FieldMetadata,
+    DTOClass: FieldMetadata,
+    CreateDTOClass: CreateFieldInput,
+    UpdateDTOClass: UpdateFieldInput,
+    ServiceClass: FieldMetadataService,
+    enableTotalCount: true,
+    pagingStrategy: PagingStrategies.CURSOR,
+    read: {
+      defaultSort: [{ field: 'id', direction: SortDirection.DESC }],
+    },
+    create: {
+      many: { disabled: true },
+    },
+    update: {
+      many: { disabled: true },
+    },
+    delete: { disabled: true },
+    guards: [JwtAuthGuard],
+  },
+];

server/src/metadata/field-metadata/field-metadata.entity.ts

@@ -11,29 +11,32 @@ import {
 } from 'typeorm';
 import {
   Authorize,
+  BeforeCreateOne,
   IDField,
   QueryOptions,
 } from '@ptc-org/nestjs-query-graphql';
 
 import { ObjectMetadata } from 'src/metadata/object-metadata/object-metadata.entity';
 
+import { BeforeCreateOneField } from './hooks/before-create-one-field.hook';
+
 export type FieldMetadataTargetColumnMap = {
   [key: string]: string;
 };
-
+@Entity('field_metadata')
 @ObjectType('field')
+@BeforeCreateOne(BeforeCreateOneField)
+@Authorize({
+  authorize: (context: any) => ({
+    workspaceId: { eq: context?.req?.user?.workspace?.id },
+  }),
+})
 @QueryOptions({
   defaultResultSize: 10,
   maxResultsSize: 100,
   disableFilter: true,
   disableSort: true,
 })
-@Authorize({
-  authorize: (context: any) => ({
-    workspaceId: { eq: context?.req?.user?.workspace?.id },
-  }),
-})
-@Entity('field_metadata')
 export class FieldMetadata {
   @IDField(() => ID)
   @PrimaryGeneratedColumn('uuid')
@@ -90,9 +93,11 @@ export class FieldMetadata {
   @JoinColumn({ name: 'object_id' })
   object: ObjectMetadata;
 
+  @Field()
   @CreateDateColumn({ name: 'created_at' })
   createdAt: Date;
 
+  @Field()
   @UpdateDateColumn({ name: 'updated_at' })
   updatedAt: Date;
 }

server/src/metadata/field-metadata/field-metadata.module.ts

@@ -1,34 +1,28 @@
 import { Module } from '@nestjs/common';
 
-import {
-  NestjsQueryGraphQLModule,
-  PagingStrategies,
-} from '@ptc-org/nestjs-query-graphql';
+import { NestjsQueryGraphQLModule } from '@ptc-org/nestjs-query-graphql';
 import { NestjsQueryTypeOrmModule } from '@ptc-org/nestjs-query-typeorm';
 
-import { JwtAuthGuard } from 'src/guards/jwt.auth.guard';
+import { MigrationRunnerModule } from 'src/metadata/migration-runner/migration-runner.module';
+import { TenantMigrationModule } from 'src/metadata/tenant-migration/tenant-migration.module';
+import { ObjectMetadataModule } from 'src/metadata/object-metadata/object-metadata.module';
 
-import { FieldMetadataService } from './field-metadata.service';
 import { FieldMetadata } from './field-metadata.entity';
+import { fieldMetadataAutoResolverOpts } from './field-metadata.auto-resolver-opts';
+
+import { FieldMetadataService } from './services/field-metadata.service';
 
 @Module({
   imports: [
     NestjsQueryGraphQLModule.forFeature({
       imports: [
         NestjsQueryTypeOrmModule.forFeature([FieldMetadata], 'metadata'),
+        TenantMigrationModule,
+        MigrationRunnerModule,
+        ObjectMetadataModule,
       ],
-      resolvers: [
-        {
-          EntityClass: FieldMetadata,
-          DTOClass: FieldMetadata,
-          enableTotalCount: true,
-          pagingStrategy: PagingStrategies.CURSOR,
-          create: { disabled: true },
-          update: { disabled: true },
-          delete: { disabled: true },
-          guards: [JwtAuthGuard],
-        },
-      ],
+      services: [FieldMetadataService],
+      resolvers: fieldMetadataAutoResolverOpts,
     }),
   ],
   providers: [FieldMetadataService],

server/src/metadata/field-metadata/field-metadata.service.ts

@@ -1,44 +0,0 @@
-import { Injectable } from '@nestjs/common';
-import { InjectRepository } from '@nestjs/typeorm';
-
-import { Repository } from 'typeorm';
-
-import { FieldMetadata } from './field-metadata.entity';
-import {
-  generateColumnName,
-  generateTargetColumnMap,
-} from './field-metadata.util';
-
-@Injectable()
-export class FieldMetadataService {
-  constructor(
-    @InjectRepository(FieldMetadata, 'metadata')
-    private readonly fieldMetadataRepository: Repository<FieldMetadata>,
-  ) {}
-
-  public async createFieldMetadata(
-    displayName: string,
-    type: string,
-    objectId: string,
-    workspaceId: string,
-  ): Promise<FieldMetadata> {
-    return await this.fieldMetadataRepository.save({
-      displayName: displayName,
-      type,
-      objectId,
-      isCustom: true,
-      targetColumnName: generateColumnName(displayName), // deprecated
-      workspaceId,
-      targetColumnMap: generateTargetColumnMap(type),
-    });
-  }
-
-  public async getFieldMetadataByDisplayNameAndObjectId(
-    name: string,
-    objectId: string,
-  ): Promise<FieldMetadata | null> {
-    return await this.fieldMetadataRepository.findOne({
-      where: { displayName: name, objectId },
-    });
-  }
-}

server/src/metadata/field-metadata/field-metadata.util.ts

@@ -1,50 +0,0 @@
-import { v4 } from 'uuid';
-
-import { uuidToBase36 } from 'src/metadata/data-source/data-source.util';
-
-import { FieldMetadataTargetColumnMap } from './field-metadata.entity';
-
-/**
- * Generate a column name from a field name removing unsupported characters.
- *
- * @param name string
- * @returns string
- */
-export function generateColumnName(name: string): string {
-  return name.toLowerCase().replace(/ /g, '_');
-}
-
-/**
- * Generate a target column map for a given type, this is used to map the field to the correct column(s) in the database.
- * This is used to support fields that map to multiple columns in the database.
- *
- * @param type string
- * @returns FieldMetadataTargetColumnMap
- */
-export function generateTargetColumnMap(
-  type: string,
-): FieldMetadataTargetColumnMap {
-  switch (type) {
-    case 'text':
-    case 'phone':
-    case 'email':
-    case 'number':
-    case 'boolean':
-    case 'date':
-      return {
-        value: uuidToBase36(v4()),
-      };
-    case 'url':
-      return {
-        text: uuidToBase36(v4()),
-        link: uuidToBase36(v4()),
-      };
-    case 'money':
-      return {
-        amount: uuidToBase36(v4()),
-        currency: uuidToBase36(v4()),
-      };
-    default:
-      throw new Error(`Unknown type ${type}`);
-  }
-}

server/src/metadata/field-metadata/hooks/before-create-one-field.hook.ts

@@ -0,0 +1,29 @@
+import { Injectable, UnauthorizedException } from '@nestjs/common';
+
+import {
+  BeforeCreateOneHook,
+  CreateOneInputType,
+} from '@ptc-org/nestjs-query-graphql';
+
+import { FieldMetadata } from 'src/metadata/field-metadata/field-metadata.entity';
+
+@Injectable()
+export class BeforeCreateOneField<T extends FieldMetadata>
+  implements BeforeCreateOneHook<T, any>
+{
+  async run(
+    instance: CreateOneInputType<T>,
+    context: any,
+  ): Promise<CreateOneInputType<T>> {
+    const workspaceId = context?.req?.user?.workspace?.id;
+
+    if (!workspaceId) {
+      throw new UnauthorizedException();
+    }
+
+    instance.input.workspaceId = workspaceId;
+    instance.input.isActive = false;
+    instance.input.isCustom = true;
+    return instance;
+  }
+}

server/src/metadata/field-metadata/services/field-metadata.service.spec.ts

@@ -1,8 +1,12 @@
 import { Test, TestingModule } from '@nestjs/testing';
 import { getRepositoryToken } from '@nestjs/typeorm';
 
+import { FieldMetadata } from 'src/metadata/field-metadata/field-metadata.entity';
+import { MigrationRunnerService } from 'src/metadata/migration-runner/migration-runner.service';
+import { TenantMigrationService } from 'src/metadata/tenant-migration/tenant-migration.service';
+import { ObjectMetadataService } from 'src/metadata/object-metadata/services/object-metadata.service';
+
 import { FieldMetadataService } from './field-metadata.service';
-import { FieldMetadata } from './field-metadata.entity';
 
 describe('FieldMetadataService', () => {
   let service: FieldMetadataService;
@@ -15,6 +19,18 @@ describe('FieldMetadataService', () => {
           provide: getRepositoryToken(FieldMetadata, 'metadata'),
           useValue: {},
         },
+        {
+          provide: ObjectMetadataService,
+          useValue: {},
+        },
+        {
+          provide: TenantMigrationService,
+          useValue: {},
+        },
+        {
+          provide: MigrationRunnerService,
+          useValue: {},
+        },
       ],
     }).compile();
 

server/src/metadata/field-metadata/services/field-metadata.service.ts

@@ -0,0 +1,99 @@
+import {
+  ConflictException,
+  Injectable,
+  NotFoundException,
+} from '@nestjs/common';
+import { InjectRepository } from '@nestjs/typeorm';
+
+import { Repository } from 'typeorm';
+import { TypeOrmQueryService } from '@ptc-org/nestjs-query-typeorm';
+
+import { FieldMetadata } from 'src/metadata/field-metadata/field-metadata.entity';
+import {
+  convertFieldMetadataToColumnChanges,
+  convertMetadataTypeToColumnType,
+  generateColumnName,
+  generateTargetColumnMap,
+} from 'src/metadata/field-metadata/utils/field-metadata.util';
+import { MigrationRunnerService } from 'src/metadata/migration-runner/migration-runner.service';
+import { TenantMigrationService } from 'src/metadata/tenant-migration/tenant-migration.service';
+import { ObjectMetadataService } from 'src/metadata/object-metadata/services/object-metadata.service';
+import {
+  TenantMigrationColumnChange,
+  TenantMigrationTableChange,
+} from 'src/metadata/tenant-migration/tenant-migration.entity';
+
+@Injectable()
+export class FieldMetadataService extends TypeOrmQueryService<FieldMetadata> {
+  constructor(
+    @InjectRepository(FieldMetadata, 'metadata')
+    private readonly fieldMetadataRepository: Repository<FieldMetadata>,
+
+    private readonly objectMetadataService: ObjectMetadataService,
+    private readonly tenantMigrationService: TenantMigrationService,
+    private readonly migrationRunnerService: MigrationRunnerService,
+  ) {
+    super(fieldMetadataRepository);
+  }
+
+  override async createOne(record: FieldMetadata): Promise<FieldMetadata> {
+    const objectMetadata =
+      await this.objectMetadataService.findOneWithinWorkspace(
+        record.objectId,
+        record.workspaceId,
+      );
+
+    if (!objectMetadata) {
+      throw new NotFoundException('Object does not exist');
+    }
+
+    const fieldAlreadyExists = await this.fieldMetadataRepository.findOne({
+      where: {
+        displayName: record.displayName,
+        objectId: record.objectId,
+        workspaceId: record.workspaceId,
+      },
+    });
+
+    if (fieldAlreadyExists) {
+      throw new ConflictException('Field already exists');
+    }
+
+    const createdFieldMetadata = await super.createOne({
+      ...record,
+      targetColumnName: generateColumnName(record.displayName), // deprecated
+      targetColumnMap: generateTargetColumnMap(record.type),
+    });
+
+    await this.tenantMigrationService.createMigration(record.workspaceId, [
+      {
+        name: objectMetadata.targetTableName,
+        change: 'alter',
+        columns: [
+          ...convertFieldMetadataToColumnChanges(createdFieldMetadata),
+          // Deprecated
+          {
+            name: createdFieldMetadata.targetColumnName,
+            type: convertMetadataTypeToColumnType(record.type),
+            change: 'create',
+          } satisfies TenantMigrationColumnChange,
+        ],
+      } satisfies TenantMigrationTableChange,
+    ]);
+
+    await this.migrationRunnerService.executeMigrationFromPendingMigrations(
+      record.workspaceId,
+    );
+
+    return createdFieldMetadata;
+  }
+
+  public async getFieldMetadataByDisplayNameAndObjectId(
+    name: string,
+    objectId: string,
+  ): Promise<FieldMetadata | null> {
+    return await this.fieldMetadataRepository.findOne({
+      where: { displayName: name, objectId },
+    });
+  }
+}

server/src/metadata/field-metadata/utils/field-metadata.util.ts

@@ -1,6 +1,56 @@
+import { v4 } from 'uuid';
+
+import { uuidToBase36 } from 'src/metadata/data-source/data-source.util';
+import {
+  FieldMetadata,
+  FieldMetadataTargetColumnMap,
+} from 'src/metadata/field-metadata/field-metadata.entity';
 import { TenantMigrationColumnChange } from 'src/metadata/tenant-migration/tenant-migration.entity';
 
-import { FieldMetadata } from './field-metadata/field-metadata.entity';
+/**
+ * Generate a column name from a field name removing unsupported characters.
+ *
+ * @param name string
+ * @returns string
+ */
+export function generateColumnName(name: string): string {
+  return name.toLowerCase().replace(/ /g, '_');
+}
+
+/**
+ * Generate a target column map for a given type, this is used to map the field to the correct column(s) in the database.
+ * This is used to support fields that map to multiple columns in the database.
+ *
+ * @param type string
+ * @returns FieldMetadataTargetColumnMap
+ */
+export function generateTargetColumnMap(
+  type: string,
+): FieldMetadataTargetColumnMap {
+  switch (type) {
+    case 'text':
+    case 'phone':
+    case 'email':
+    case 'number':
+    case 'boolean':
+    case 'date':
+      return {
+        value: uuidToBase36(v4()),
+      };
+    case 'url':
+      return {
+        text: uuidToBase36(v4()),
+        link: uuidToBase36(v4()),
+      };
+    case 'money':
+      return {
+        amount: uuidToBase36(v4()),
+        currency: uuidToBase36(v4()),
+      };
+    default:
+      throw new Error(`Unknown type ${type}`);
+  }
+}
 
 export function convertFieldMetadataToColumnChanges(
   fieldMetadata: FieldMetadata,
@@ -77,3 +127,24 @@ export function convertFieldMetadataToColumnChanges(
       throw new Error(`Unknown type ${fieldMetadata.type}`);
   }
 }
+
+// Deprecated with target_column_name deprecation
+export function convertMetadataTypeToColumnType(type: string) {
+  switch (type) {
+    case 'text':
+    case 'url':
+    case 'phone':
+    case 'email':
+      return 'text';
+    case 'number':
+      return 'int';
+    case 'boolean':
+      return 'boolean';
+    case 'date':
+      return 'timestamp';
+    case 'money':
+      return 'integer';
+    default:
+      throw new Error('Invalid type');
+  }
+}

server/src/metadata/metadata.module.ts

@@ -5,12 +5,10 @@ import { GraphQLModule } from '@nestjs/graphql';
 import { YogaDriverConfig, YogaDriver } from '@graphql-yoga/nestjs';
 import GraphQLJSON from 'graphql-type-json';
 
-import { MigrationGeneratorModule } from 'src/metadata/migration-generator/migration-generator.module';
+import { MigrationRunnerModule } from 'src/metadata/migration-runner/migration-runner.module';
 import { TenantMigrationModule } from 'src/metadata/tenant-migration/tenant-migration.module';
 
-import { MetadataService } from './metadata.service';
 import { typeORMMetadataModuleOptions } from './metadata.datasource';
-import { MetadataResolver } from './metadata.resolver';
 
 import { DataSourceModule } from './data-source/data-source.module';
 import { DataSourceMetadataModule } from './data-source-metadata/data-source-metadata.module';
@@ -41,10 +39,8 @@ const typeORMFactory = async (): Promise<TypeOrmModuleOptions> => ({
     DataSourceMetadataModule,
     FieldMetadataModule,
     ObjectMetadataModule,
-    MigrationGeneratorModule,
+    MigrationRunnerModule,
     TenantMigrationModule,
   ],
-  providers: [MetadataService, MetadataResolver],
-  exports: [MetadataService],
 })
 export class MetadataModule {}

server/src/metadata/metadata.resolver.spec.ts

@@ -1,26 +0,0 @@
-import { Test, TestingModule } from '@nestjs/testing';
-
-import { MetadataResolver } from './metadata.resolver';
-import { MetadataService } from './metadata.service';
-
-describe('MetadataResolver', () => {
-  let resolver: MetadataResolver;
-
-  beforeEach(async () => {
-    const module: TestingModule = await Test.createTestingModule({
-      providers: [
-        MetadataResolver,
-        {
-          provide: MetadataService,
-          useValue: {},
-        },
-      ],
-    }).compile();
-
-    resolver = module.get<MetadataResolver>(MetadataResolver);
-  });
-
-  it('should be defined', () => {
-    expect(resolver).toBeDefined();
-  });
-});

server/src/metadata/metadata.resolver.ts

@@ -1,30 +0,0 @@
-import { UseGuards } from '@nestjs/common';
-import { Args, Mutation, Resolver } from '@nestjs/graphql';
-
-import { Workspace } from '@prisma/client';
-
-import { JwtAuthGuard } from 'src/guards/jwt.auth.guard';
-import { AuthWorkspace } from 'src/decorators/auth-workspace.decorator';
-
-import { MetadataService } from './metadata.service';
-
-import { CreateCustomFieldInput } from './args/create-custom-field.input';
-
-@UseGuards(JwtAuthGuard)
-@Resolver()
-export class MetadataResolver {
-  constructor(private readonly metadataService: MetadataService) {}
-
-  @Mutation(() => String)
-  async createCustomField(
-    @Args() createCustomFieldInput: CreateCustomFieldInput,
-    @AuthWorkspace() workspace: Workspace,
-  ): Promise<string> {
-    return this.metadataService.createCustomField(
-      createCustomFieldInput.displayName,
-      createCustomFieldInput.objectId,
-      createCustomFieldInput.type,
-      workspace.id,
-    );
-  }
-}

server/src/metadata/metadata.service.spec.ts

@@ -1,48 +0,0 @@
-import { Test, TestingModule } from '@nestjs/testing';
-
-import { MigrationGeneratorService } from 'src/metadata/migration-generator/migration-generator.service';
-import { TenantMigrationService } from 'src/metadata/tenant-migration/tenant-migration.service';
-
-import { MetadataService } from './metadata.service';
-
-import { DataSourceService } from './data-source/data-source.service';
-import { ObjectMetadataService } from './object-metadata/object-metadata.service';
-import { FieldMetadataService } from './field-metadata/field-metadata.service';
-
-describe('MetadataService', () => {
-  let service: MetadataService;
-
-  beforeEach(async () => {
-    const module: TestingModule = await Test.createTestingModule({
-      providers: [
-        MetadataService,
-        {
-          provide: DataSourceService,
-          useValue: {},
-        },
-        {
-          provide: MigrationGeneratorService,
-          useValue: {},
-        },
-        {
-          provide: ObjectMetadataService,
-          useValue: {},
-        },
-        {
-          provide: TenantMigrationService,
-          useValue: {},
-        },
-        {
-          provide: FieldMetadataService,
-          useValue: {},
-        },
-      ],
-    }).compile();
-
-    service = module.get<MetadataService>(MetadataService);
-  });
-
-  it('should be defined', () => {
-    expect(service).toBeDefined();
-  });
-});

server/src/metadata/metadata.service.ts

@@ -1,107 +0,0 @@
-import { Injectable } from '@nestjs/common';
-
-import { MigrationGeneratorService } from 'src/metadata/migration-generator/migration-generator.service';
-import { TenantMigrationService } from 'src/metadata/tenant-migration/tenant-migration.service';
-import {
-  TenantMigrationColumnChange,
-  TenantMigrationTableChange,
-} from 'src/metadata/tenant-migration/tenant-migration.entity';
-
-import { convertFieldMetadataToColumnChanges } from './metadata.util';
-
-import { DataSourceService } from './data-source/data-source.service';
-import { FieldMetadataService } from './field-metadata/field-metadata.service';
-import { ObjectMetadataService } from './object-metadata/object-metadata.service';
-
-@Injectable()
-export class MetadataService {
-  constructor(
-    private readonly dataSourceService: DataSourceService,
-    private readonly migrationGenerator: MigrationGeneratorService,
-    private readonly objectMetadataService: ObjectMetadataService,
-    private readonly tenantMigrationService: TenantMigrationService,
-    private readonly fieldMetadataService: FieldMetadataService,
-  ) {}
-
-  public async createCustomField(
-    displayName: string,
-    objectId: string,
-    type: string,
-    workspaceId: string,
-  ): Promise<string> {
-    const workspaceDataSource =
-      await this.dataSourceService.connectToWorkspaceDataSource(workspaceId);
-
-    if (!workspaceDataSource) {
-      throw new Error('Workspace data source not found');
-    }
-
-    const objectMetadata =
-      await this.objectMetadataService.getObjectMetadataFromId(objectId);
-
-    if (!objectMetadata) {
-      throw new Error('Object not found');
-    }
-
-    const fieldMetadataAlreadyExists =
-      await this.fieldMetadataService.getFieldMetadataByDisplayNameAndObjectId(
-        displayName,
-        objectId,
-      );
-
-    if (fieldMetadataAlreadyExists) {
-      throw new Error('Field already exists');
-    }
-
-    const createdFieldMetadata =
-      await this.fieldMetadataService.createFieldMetadata(
-        displayName,
-        type,
-        objectMetadata.id,
-        workspaceId,
-      );
-
-    await this.tenantMigrationService.createMigration(workspaceId, [
-      {
-        name: objectMetadata.targetTableName,
-        change: 'alter',
-        columns: [
-          ...convertFieldMetadataToColumnChanges(createdFieldMetadata),
-          // Deprecated
-          {
-            name: createdFieldMetadata.targetColumnName,
-            type: this.convertMetadataTypeToColumnType(type),
-            change: 'create',
-          } satisfies TenantMigrationColumnChange,
-        ],
-      } satisfies TenantMigrationTableChange,
-    ]);
-
-    await this.migrationGenerator.executeMigrationFromPendingMigrations(
-      workspaceId,
-    );
-
-    return createdFieldMetadata.id;
-  }
-
-  // Deprecated with target_column_name
-  private convertMetadataTypeToColumnType(type: string) {
-    switch (type) {
-      case 'text':
-      case 'url':
-      case 'phone':
-      case 'email':
-        return 'text';
-      case 'number':
-        return 'int';
-      case 'boolean':
-        return 'boolean';
-      case 'date':
-        return 'timestamp';
-      case 'money':
-        return 'integer';
-      default:
-        throw new Error('Invalid type');
-    }
-  }
-}

server/src/metadata/migration-runner/migration-runner.module.ts

@@ -3,11 +3,11 @@ import { Module } from '@nestjs/common';
 import { DataSourceModule } from 'src/metadata/data-source/data-source.module';
 import { TenantMigrationModule } from 'src/metadata/tenant-migration/tenant-migration.module';
 
-import { MigrationGeneratorService } from './migration-generator.service';
+import { MigrationRunnerService } from './migration-runner.service';
 
 @Module({
   imports: [DataSourceModule, TenantMigrationModule],
-  exports: [MigrationGeneratorService],
-  providers: [MigrationGeneratorService],
+  exports: [MigrationRunnerService],
+  providers: [MigrationRunnerService],
 })
-export class MigrationGeneratorModule {}
+export class MigrationRunnerModule {}

server/src/metadata/migration-runner/migration-runner.service.spec.ts

@@ -3,15 +3,15 @@ import { Test, TestingModule } from '@nestjs/testing';
 import { DataSourceService } from 'src/metadata/data-source/data-source.service';
 import { TenantMigrationService } from 'src/metadata/tenant-migration/tenant-migration.service';
 
-import { MigrationGeneratorService } from './migration-generator.service';
+import { MigrationRunnerService } from './migration-runner.service';
 
-describe('MigrationGeneratorService', () => {
-  let service: MigrationGeneratorService;
+describe('MigrationRunnerService', () => {
+  let service: MigrationRunnerService;
 
   beforeEach(async () => {
     const module: TestingModule = await Test.createTestingModule({
       providers: [
-        MigrationGeneratorService,
+        MigrationRunnerService,
         {
           provide: DataSourceService,
           useValue: {},
@@ -23,7 +23,7 @@ describe('MigrationGeneratorService', () => {
       ],
     }).compile();
 
-    service = module.get<MigrationGeneratorService>(MigrationGeneratorService);
+    service = module.get<MigrationRunnerService>(MigrationRunnerService);
   });
 
   it('should be defined', () => {

server/src/metadata/migration-runner/migration-runner.service.ts

@@ -10,7 +10,7 @@ import {
 import { TenantMigrationService } from 'src/metadata/tenant-migration/tenant-migration.service';
 
 @Injectable()
-export class MigrationGeneratorService {
+export class MigrationRunnerService {
   constructor(
     private readonly dataSourceService: DataSourceService,
     private readonly tenantMigrationService: TenantMigrationService,
@@ -113,13 +113,23 @@ export class MigrationGeneratorService {
             name: 'id',
             type: 'uuid',
             isPrimary: true,
-            default: 'uuid_generate_v4()',
+            default: 'public.uuid_generate_v4()',
           },
           {
             name: 'created_at',
             type: 'timestamp',
             default: 'now()',
           },
+          {
+            name: 'updated_at',
+            type: 'timestamp',
+            default: 'now()',
+          },
+          {
+            name: 'deleted_at',
+            type: 'timestamp',
+            isNullable: true,
+          },
         ],
       }),
       true,

server/src/metadata/object-metadata/dtos/create-object.input.ts

@@ -0,0 +1,32 @@
+import { Field, InputType } from '@nestjs/graphql';
+
+import { IsNotEmpty, IsOptional, IsString } from 'class-validator';
+
+@InputType()
+export class CreateObjectInput {
+  // Deprecated
+  @IsString()
+  @IsNotEmpty()
+  @Field()
+  displayName: string;
+
+  @IsString()
+  @IsOptional()
+  @Field({ nullable: true })
+  displayNameSingular?: string;
+
+  @IsString()
+  @IsOptional()
+  @Field({ nullable: true })
+  displayNamePlural?: string;
+
+  @IsString()
+  @IsOptional()
+  @Field({ nullable: true })
+  description?: string;
+
+  @IsString()
+  @IsOptional()
+  @Field({ nullable: true })
+  icon?: string;
+}

server/src/metadata/object-metadata/dtos/update-object.input.ts

@@ -0,0 +1,37 @@
+import { Field, InputType } from '@nestjs/graphql';
+
+import { IsBoolean, IsOptional, IsString } from 'class-validator';
+
+@InputType()
+export class UpdateObjectInput {
+  // Deprecated
+  @IsString()
+  @IsOptional()
+  @Field({ nullable: true })
+  displayName: string;
+
+  @IsString()
+  @IsOptional()
+  @Field({ nullable: true })
+  displayNameSingular?: string;
+
+  @IsString()
+  @IsOptional()
+  @Field({ nullable: true })
+  displayNamePlural?: string;
+
+  @IsString()
+  @IsOptional()
+  @Field({ nullable: true })
+  description?: string;
+
+  @IsString()
+  @IsOptional()
+  @Field({ nullable: true })
+  icon?: string;
+
+  @IsBoolean()
+  @IsOptional()
+  @Field({ nullable: true })
+  isActive?: boolean;
+}

server/src/metadata/object-metadata/hooks/before-create-one-object.hook.ts

@@ -0,0 +1,39 @@
+import { Injectable, UnauthorizedException } from '@nestjs/common';
+
+import {
+  BeforeCreateOneHook,
+  CreateOneInputType,
+} from '@ptc-org/nestjs-query-graphql';
+
+import { DataSourceMetadataService } from 'src/metadata/data-source-metadata/data-source-metadata.service';
+import { ObjectMetadata } from 'src/metadata/object-metadata/object-metadata.entity';
+
+@Injectable()
+export class BeforeCreateOneObject<T extends ObjectMetadata>
+  implements BeforeCreateOneHook<T, any>
+{
+  constructor(readonly dataSourceMetadataService: DataSourceMetadataService) {}
+
+  async run(
+    instance: CreateOneInputType<T>,
+    context: any,
+  ): Promise<CreateOneInputType<T>> {
+    const workspaceId = context?.req?.user?.workspace?.id;
+
+    if (!workspaceId) {
+      throw new UnauthorizedException();
+    }
+
+    const lastDataSourceMetadata =
+      await this.dataSourceMetadataService.getLastDataSourceMetadataFromWorkspaceIdOrFail(
+        workspaceId,
+      );
+
+    instance.input.dataSourceId = lastDataSourceMetadata.id;
+    instance.input.targetTableName = instance.input.displayName;
+    instance.input.workspaceId = workspaceId;
+    instance.input.isActive = false;
+    instance.input.isCustom = true;
+    return instance;
+  }
+}

server/src/metadata/object-metadata/object-metadata.auto-resolver-opts.ts

@@ -0,0 +1,44 @@
+import { SortDirection } from '@ptc-org/nestjs-query-core';
+import {
+  AutoResolverOpts,
+  PagingStrategies,
+  ReadResolverOpts,
+} from '@ptc-org/nestjs-query-graphql';
+
+import { JwtAuthGuard } from 'src/guards/jwt.auth.guard';
+
+import { ObjectMetadata } from './object-metadata.entity';
+
+import { ObjectMetadataService } from './services/object-metadata.service';
+import { CreateObjectInput } from './dtos/create-object.input';
+import { UpdateObjectInput } from './dtos/update-object.input';
+
+export const objectMetadataAutoResolverOpts: AutoResolverOpts<
+  any,
+  any,
+  unknown,
+  unknown,
+  ReadResolverOpts<any>,
+  PagingStrategies
+>[] = [
+  {
+    EntityClass: ObjectMetadata,
+    DTOClass: ObjectMetadata,
+    CreateDTOClass: CreateObjectInput,
+    UpdateDTOClass: UpdateObjectInput,
+    ServiceClass: ObjectMetadataService,
+    enableTotalCount: true,
+    pagingStrategy: PagingStrategies.CURSOR,
+    read: {
+      defaultSort: [{ field: 'id', direction: SortDirection.DESC }],
+    },
+    create: {
+      many: { disabled: true },
+    },
+    update: {
+      many: { disabled: true },
+    },
+    delete: { disabled: true },
+    guards: [JwtAuthGuard],
+  },
+];

server/src/metadata/object-metadata/object-metadata.entity.ts

@@ -10,6 +10,7 @@ import {
 } from 'typeorm';
 import {
   Authorize,
+  BeforeCreateOne,
   CursorConnection,
   IDField,
   QueryOptions,
@@ -17,20 +18,23 @@ import {
 
 import { FieldMetadata } from 'src/metadata/field-metadata/field-metadata.entity';
 
+import { BeforeCreateOneObject } from './hooks/before-create-one-object.hook';
+
+@Entity('object_metadata')
 @ObjectType('object')
+@BeforeCreateOne(BeforeCreateOneObject)
+@Authorize({
+  authorize: (context: any) => ({
+    workspaceId: { eq: context?.req?.user?.workspace?.id },
+  }),
+})
 @QueryOptions({
   defaultResultSize: 10,
   maxResultsSize: 100,
   disableFilter: true,
   disableSort: true,
 })
-@Authorize({
-  authorize: (context: any) => ({
-    workspaceId: { eq: context?.req?.user?.workspace?.id },
-  }),
-})
 @CursorConnection('fields', () => FieldMetadata)
-@Entity('object_metadata')
 export class ObjectMetadata {
   @IDField(() => ID)
   @PrimaryGeneratedColumn('uuid')
@@ -44,19 +48,19 @@ export class ObjectMetadata {
   @Column({ nullable: false, name: 'display_name' })
   displayName: string;
 
-  @Field()
+  @Field({ nullable: true })
   @Column({ nullable: true, name: 'display_name_singular' })
   displayNameSingular: string;
 
-  @Field()
+  @Field({ nullable: true })
   @Column({ nullable: true, name: 'display_name_plural' })
   displayNamePlural: string;
 
-  @Field()
+  @Field({ nullable: true })
   @Column({ nullable: true, name: 'description', type: 'text' })
   description: string;
 
-  @Field()
+  @Field({ nullable: true })
   @Column({ nullable: true, name: 'icon' })
   icon: string;
 

server/src/metadata/object-metadata/object-metadata.module.ts

@@ -1,34 +1,28 @@
 import { Module } from '@nestjs/common';
 
-import {
-  NestjsQueryGraphQLModule,
-  PagingStrategies,
-} from '@ptc-org/nestjs-query-graphql';
+import { NestjsQueryGraphQLModule } from '@ptc-org/nestjs-query-graphql';
 import { NestjsQueryTypeOrmModule } from '@ptc-org/nestjs-query-typeorm';
 
-import { JwtAuthGuard } from 'src/guards/jwt.auth.guard';
+import { DataSourceMetadataModule } from 'src/metadata/data-source-metadata/data-source-metadata.module';
+import { MigrationRunnerModule } from 'src/metadata/migration-runner/migration-runner.module';
+import { TenantMigrationModule } from 'src/metadata/tenant-migration/tenant-migration.module';
 
-import { ObjectMetadataService } from './object-metadata.service';
 import { ObjectMetadata } from './object-metadata.entity';
+import { objectMetadataAutoResolverOpts } from './object-metadata.auto-resolver-opts';
+
+import { ObjectMetadataService } from './services/object-metadata.service';
 
 @Module({
   imports: [
     NestjsQueryGraphQLModule.forFeature({
       imports: [
         NestjsQueryTypeOrmModule.forFeature([ObjectMetadata], 'metadata'),
+        DataSourceMetadataModule,
+        TenantMigrationModule,
+        MigrationRunnerModule,
       ],
-      resolvers: [
-        {
-          EntityClass: ObjectMetadata,
-          DTOClass: ObjectMetadata,
-          enableTotalCount: true,
-          pagingStrategy: PagingStrategies.CURSOR,
-          create: { disabled: true },
-          update: { disabled: true },
-          delete: { disabled: true },
-          guards: [JwtAuthGuard],
-        },
-      ],
+      services: [ObjectMetadataService],
+      resolvers: objectMetadataAutoResolverOpts,
     }),
   ],
   providers: [ObjectMetadataService],

server/src/metadata/object-metadata/object-metadata.service.ts

@@ -1,28 +0,0 @@
-import { Injectable } from '@nestjs/common';
-import { InjectRepository } from '@nestjs/typeorm';
-
-import { Repository } from 'typeorm';
-
-import { ObjectMetadata } from './object-metadata.entity';
-
-@Injectable()
-export class ObjectMetadataService {
-  constructor(
-    @InjectRepository(ObjectMetadata, 'metadata')
-    private readonly fieldMetadataRepository: Repository<ObjectMetadata>,
-  ) {}
-
-  public async getObjectMetadataFromDataSourceId(dataSourceId: string) {
-    return this.fieldMetadataRepository.find({
-      where: { dataSourceId },
-      relations: ['fields'],
-    });
-  }
-
-  public async getObjectMetadataFromId(objectMetadataId: string) {
-    return this.fieldMetadataRepository.findOne({
-      where: { id: objectMetadataId },
-      relations: ['fields'],
-    });
-  }
-}

server/src/metadata/object-metadata/services/object-metadata.service.spec.ts

@@ -1,8 +1,11 @@
 import { Test, TestingModule } from '@nestjs/testing';
 import { getRepositoryToken } from '@nestjs/typeorm';
 
+import { ObjectMetadata } from 'src/metadata/object-metadata/object-metadata.entity';
+import { MigrationRunnerService } from 'src/metadata/migration-runner/migration-runner.service';
+import { TenantMigrationService } from 'src/metadata/tenant-migration/tenant-migration.service';
+
 import { ObjectMetadataService } from './object-metadata.service';
-import { ObjectMetadata } from './object-metadata.entity';
 
 describe('ObjectMetadataService', () => {
   let service: ObjectMetadataService;
@@ -15,6 +18,14 @@ describe('ObjectMetadataService', () => {
           provide: getRepositoryToken(ObjectMetadata, 'metadata'),
           useValue: {},
         },
+        {
+          provide: TenantMigrationService,
+          useValue: {},
+        },
+        {
+          provide: MigrationRunnerService,
+          useValue: {},
+        },
       ],
     }).compile();
 

server/src/metadata/object-metadata/services/object-metadata.service.ts

@@ -0,0 +1,70 @@
+import { ConflictException, Injectable } from '@nestjs/common';
+import { InjectRepository } from '@nestjs/typeorm';
+
+import { Repository } from 'typeorm';
+import { TypeOrmQueryService } from '@ptc-org/nestjs-query-typeorm';
+
+import { TenantMigrationService } from 'src/metadata/tenant-migration/tenant-migration.service';
+import { TenantMigrationTableChange } from 'src/metadata/tenant-migration/tenant-migration.entity';
+import { MigrationRunnerService } from 'src/metadata/migration-runner/migration-runner.service';
+import { ObjectMetadata } from 'src/metadata/object-metadata/object-metadata.entity';
+
+@Injectable()
+export class ObjectMetadataService extends TypeOrmQueryService<ObjectMetadata> {
+  constructor(
+    @InjectRepository(ObjectMetadata, 'metadata')
+    private readonly objectMetadataRepository: Repository<ObjectMetadata>,
+
+    private readonly tenantMigrationService: TenantMigrationService,
+    private readonly migrationRunnerService: MigrationRunnerService,
+  ) {
+    super(objectMetadataRepository);
+  }
+
+  override async createOne(record: ObjectMetadata): Promise<ObjectMetadata> {
+    const objectAlreadyExists = await this.objectMetadataRepository.findOne({
+      where: {
+        displayName: record.displayName, // deprecated, use singular and plural
+        workspaceId: record.workspaceId,
+      },
+    });
+
+    if (objectAlreadyExists) {
+      throw new ConflictException('Object already exists');
+    }
+
+    const createdObjectMetadata = await super.createOne(record);
+
+    await this.tenantMigrationService.createMigration(
+      createdObjectMetadata.workspaceId,
+      [
+        {
+          name: createdObjectMetadata.targetTableName,
+          change: 'create',
+        } satisfies TenantMigrationTableChange,
+      ],
+    );
+
+    await this.migrationRunnerService.executeMigrationFromPendingMigrations(
+      createdObjectMetadata.workspaceId,
+    );
+
+    return createdObjectMetadata;
+  }
+
+  public async getObjectMetadataFromDataSourceId(dataSourceId: string) {
+    return this.objectMetadataRepository.find({
+      where: { dataSourceId },
+      relations: ['fields'],
+    });
+  }
+
+  public async findOneWithinWorkspace(
+    objectMetadataId: string,
+    workspaceId: string,
+  ) {
+    return this.objectMetadataRepository.findOne({
+      where: { id: objectMetadataId, workspaceId },
+    });
+  }
+}

server/src/tenant/schema-builder/schema-builder.service.ts

@@ -156,6 +156,11 @@ export class SchemaBuilderService {
     const mutationFields: any = {};
 
     for (const objectDefinition of objectMetadata) {
+      if (objectDefinition.fields.length === 0) {
+        // A graphql type must define one or more fields
+        continue;
+      }
+
       const tableName = objectDefinition?.targetTableName ?? '';
       const ObjectType = generateObjectType(
         objectDefinition.displayName,

server/src/tenant/tenant.service.spec.ts

@@ -1,7 +1,7 @@
 import { Test, TestingModule } from '@nestjs/testing';
 
 import { DataSourceMetadataService } from 'src/metadata/data-source-metadata/data-source-metadata.service';
-import { ObjectMetadataService } from 'src/metadata/object-metadata/object-metadata.service';
+import { ObjectMetadataService } from 'src/metadata/object-metadata/services/object-metadata.service';
 
 import { TenantService } from './tenant.service';
 

server/src/tenant/tenant.service.ts

@@ -3,7 +3,7 @@ import { Injectable } from '@nestjs/common';
 import { GraphQLSchema } from 'graphql';
 
 import { DataSourceMetadataService } from 'src/metadata/data-source-metadata/data-source-metadata.service';
-import { ObjectMetadataService } from 'src/metadata/object-metadata/object-metadata.service';
+import { ObjectMetadataService } from 'src/metadata/object-metadata/services/object-metadata.service';
 
 import { SchemaBuilderService } from './schema-builder/schema-builder.service';