🚧 auto delete relations

api/src/routes/channels/#channel_id/index.ts

@@ -1,6 +1,15 @@
-import { Channel, ChannelDeleteEvent, ChannelPermissionOverwriteType, ChannelType, ChannelUpdateEvent, emitEvent, Recipient } from "@fosscord/util";
+import {
+	Channel,
+	ChannelDeleteEvent,
+	ChannelPermissionOverwriteType,
+	ChannelType,
+	ChannelUpdateEvent,
+	emitEvent,
+	Recipient,
+	handleFile
+} from "@fosscord/util";
 import { Request, Response, Router } from "express";
-import { handleFile, route } from "@fosscord/api";
+import { route } from "@fosscord/api";
 
 const router: Router = Router();
 // TODO: delete channel
@@ -20,15 +29,14 @@ router.delete("/", route({ permission: "MANAGE_CHANNELS" }), async (req: Request
 	const channel = await Channel.findOneOrFail({ where: { id: channel_id }, relations: ["recipients"] });
 
 	if (channel.type === ChannelType.DM) {
-		const recipient = await Recipient.findOneOrFail({ where: { channel_id: channel_id, user_id: req.user_id } })
-		recipient.closed = true
+		const recipient = await Recipient.findOneOrFail({ where: { channel_id: channel_id, user_id: req.user_id } });
+		recipient.closed = true;
 		await Promise.all([
 			recipient.save(),
 			emitEvent({ event: "CHANNEL_DELETE", data: channel, user_id: req.user_id } as ChannelDeleteEvent)
 		]);
-
 	} else if (channel.type === ChannelType.GROUP_DM) {
-		await Channel.removeRecipientFromChannel(channel, req.user_id)
+		await Channel.removeRecipientFromChannel(channel, req.user_id);
 	} else {
 		//TODO messages in this channel should be deleted before deleting the channel
 		await Promise.all([

util/src/entities/BaseClass.ts

@@ -1,5 +1,14 @@
 import "reflect-metadata";
-import { BaseEntity, BeforeInsert, BeforeUpdate, EntityMetadata, FindConditions, PrimaryColumn } from "typeorm";
+import {
+	BaseEntity,
+	BeforeInsert,
+	BeforeUpdate,
+	EntityMetadata,
+	FindConditions,
+	getConnection,
+	PrimaryColumn,
+	RemoveOptions,
+} from "typeorm";
 import { Snowflake } from "../util/Snowflake";
 import "missing-native-js-functions";
 
@@ -69,6 +78,44 @@ export class BaseClassWithoutId extends BaseEntity {
 		const repository = this.getRepository();
 		return repository.decrement(conditions, propertyPath, value);
 	}
+
+	static async delete<T>(criteria: FindConditions<T>, options?: RemoveOptions) {
+		if (!criteria) throw new Error("You need to specify delete criteria");
+
+		const repository = this.getRepository();
+		const promises = repository.metadata.relations.map((x) => {
+			if (x.orphanedRowAction !== "delete") return;
+			if (typeof x.type === "string") return;
+
+			const foreignKey =
+				x.foreignKeys.find((key) => key.entityMetadata === repository.metadata) ||
+				x.inverseRelation?.foreignKeys[0]; // find foreign key for this entity
+			if (!foreignKey) {
+				throw new Error(
+					`Foreign key not found for entity ${repository.metadata.name} in relation ${x.propertyName}`
+				);
+			}
+			console.log(foreignKey);
+			const id = (criteria as any)[foreignKey.referencedColumnNames[0]];
+			if (!id) throw new Error("id missing in criteria options");
+
+			if (x.relationType === "many-to-many" || x.relationType === "one-to-many") {
+				return getConnection()
+					.createQueryBuilder()
+					.relation(this, x.propertyName)
+					.of(id)
+					.remove({ [foreignKey.columnNames[0]]: id });
+			} else if (x.relationType === "one-to-one" || x.relationType === "many-to-one") {
+				return getConnection()
+					.createQueryBuilder()
+					.from(x.inverseEntityMetadata, "user")
+					.of(id)
+					.remove({ [foreignKey.name]: id });
+			}
+		});
+		await Promise.all(promises);
+		return super.delete(criteria, options);
+	}
 }
 
 export class BaseClass extends BaseClassWithoutId {

util/src/entities/Channel.ts

@@ -1,14 +1,4 @@
-import {
-	Column,
-	Entity,
-	FindConditions,
-	JoinColumn,
-	ManyToOne,
-	ObjectID,
-	OneToMany,
-	RelationId,
-	RemoveOptions,
-} from "typeorm";
+import { Column, Entity, JoinColumn, ManyToOne, OneToMany, RelationId } from "typeorm";
 import { BaseClass } from "./BaseClass";
 import { Guild } from "./Guild";
 import { PublicUserProjection, User } from "./User";

util/src/util/Database.ts

@@ -21,7 +21,7 @@ export function initDatabase() {
 		//
 		entities: Object.values(Models).filter((x) => x.constructor.name !== "Object"),
 		synchronize: true,
-		logging: false,
+		logging: true,
 		cache: {
 			duration: 1000 * 3, // cache all find queries for 3 seconds
 		},