Add Relation Metadata (#2388)

* Add Relation Metadata

* remove logs

* fix migrations

* add one-to-many relation inside entities

* fix relation

* use enum for tenant migration column action type

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

@@ -0,0 +1,54 @@
+import { Field, InputType } from '@nestjs/graphql';
+
+import { BeforeCreateOne } from '@ptc-org/nestjs-query-graphql';
+import {
+  IsEnum,
+  IsNotEmpty,
+  IsOptional,
+  IsString,
+  IsUUID,
+} from 'class-validator';
+
+import { RelationType } from 'src/metadata/relation-metadata/relation-metadata.entity';
+import { BeforeCreateOneRelation } from 'src/metadata/relation-metadata/hooks/before-create-one-relation.hook';
+
+@InputType()
+@BeforeCreateOne(BeforeCreateOneRelation)
+export class CreateRelationInput {
+  @IsEnum(RelationType)
+  @IsNotEmpty()
+  @Field()
+  relationType: RelationType;
+
+  @IsUUID()
+  @IsNotEmpty()
+  @Field()
+  fromObjectMetadataId: string;
+
+  @IsUUID()
+  @IsNotEmpty()
+  @Field()
+  toObjectMetadataId: string;
+
+  @IsString()
+  @IsNotEmpty()
+  @Field()
+  name: string;
+
+  @IsString()
+  @IsNotEmpty()
+  @Field()
+  label: string;
+
+  @IsString()
+  @IsOptional()
+  @Field({ nullable: true })
+  description?: string;
+
+  @IsString()
+  @IsOptional()
+  @Field({ nullable: true })
+  icon?: string;
+
+  workspaceId: string;
+}