From 979154b8a50aba9e2eaa4341504308bbc13996f7 Mon Sep 17 00:00:00 2001
From: Philip Molares <philip.molares@udo.edu>
Date: Wed, 17 Mar 2021 10:26:42 +0100
Subject: [PATCH] Permissions: Add cascade

This makes it possible to create permissions by setting them in the note entity and delete them when either the user or note is deleted.

Signed-off-by: Philip Molares <philip.molares@udo.edu>
---
 src/notes/note.entity.ts                        |  7 ++++++-
 src/permissions/note-group-permission.entity.ts | 10 ++++++++--
 src/permissions/note-user-permission.entity.ts  | 10 ++++++++--
 3 files changed, 22 insertions(+), 5 deletions(-)

diff --git a/src/notes/note.entity.ts b/src/notes/note.entity.ts
index 1adcef9cb..538af568b 100644
--- a/src/notes/note.entity.ts
+++ b/src/notes/note.entity.ts
@@ -39,9 +39,14 @@ export class Note {
   @OneToMany(
     (_) => NoteGroupPermission,
     (groupPermission) => groupPermission.note,
+    { cascade: true }, // This ensures that embedded NoteGroupPermissions are automatically saved to the database
   )
   groupPermissions: NoteGroupPermission[];
-  @OneToMany((_) => NoteUserPermission, (userPermission) => userPermission.note)
+  @OneToMany(
+    (_) => NoteUserPermission,
+    (userPermission) => userPermission.note,
+    { cascade: true }, // This ensures that embedded NoteUserPermission are automatically saved to the database
+  )
   userPermissions: NoteUserPermission[];
   @Column({
     nullable: false,
diff --git a/src/permissions/note-group-permission.entity.ts b/src/permissions/note-group-permission.entity.ts
index d1e94112c..364c2991d 100644
--- a/src/permissions/note-group-permission.entity.ts
+++ b/src/permissions/note-group-permission.entity.ts
@@ -10,10 +10,16 @@ import { Note } from '../notes/note.entity';
 
 @Entity()
 export class NoteGroupPermission {
-  @ManyToOne((_) => Group, { primary: true })
+  @ManyToOne((_) => Group, {
+    primary: true,
+    onDelete: 'CASCADE', // This deletes the NoteGroupPermission, when the associated Group is deleted
+  })
   group: Group;
 
-  @ManyToOne((_) => Note, (note) => note.groupPermissions, { primary: true })
+  @ManyToOne((_) => Note, (note) => note.groupPermissions, {
+    primary: true,
+    onDelete: 'CASCADE', // This deletes the NoteGroupPermission, when the associated Note is deleted
+  })
   note: Note;
 
   @Column()
diff --git a/src/permissions/note-user-permission.entity.ts b/src/permissions/note-user-permission.entity.ts
index 0bad0d41d..06e94d0af 100644
--- a/src/permissions/note-user-permission.entity.ts
+++ b/src/permissions/note-user-permission.entity.ts
@@ -10,10 +10,16 @@ import { User } from '../users/user.entity';
 
 @Entity()
 export class NoteUserPermission {
-  @ManyToOne((_) => User, { primary: true })
+  @ManyToOne((_) => User, {
+    primary: true,
+    onDelete: 'CASCADE', // This deletes the NoteUserPermission, when the associated Note is deleted
+  })
   user: User;
 
-  @ManyToOne((_) => Note, (note) => note.userPermissions, { primary: true })
+  @ManyToOne((_) => Note, (note) => note.userPermissions, {
+    primary: true,
+    onDelete: 'CASCADE', // This deletes the NoteUserPermission, when the associated Note is deleted
+  })
   note: Note;
 
   @Column()