refactor: remove options from one-to-many relations because it is not necessary

src/main/entities/library/base/multi-named.ts

@@ -18,10 +18,7 @@ export function MultiNamed<T extends Constructor>(BaseClass: T = null, multiName
     @Column()
     public nameCanonical: string;
 
-    @OneToMany(multiNameClass, (multiName: IMultiName) => multiName.multiNamed, {
-      onDelete: 'CASCADE',
-      onUpdate: 'CASCADE',
-    })
+    @OneToMany(multiNameClass, (multiName: IMultiName) => multiName.multiNamed)
     public multiNames: Promise<IMultiName[]>;
   }
 

src/main/entities/library/book.ts

@@ -12,12 +12,7 @@ import { Tag } from './tag';
 export class Book extends Rateable(MultiNamed(BaseEntity, 'BookMultiName')) {
   @OneToMany(
     () => Copy,
-    (copy: Copy) => copy.original,
-    {
-      nullable: false,
-      onDelete: 'CASCADE',
-      onUpdate: 'CASCADE',
-    }
+    (copy: Copy) => copy.original
   )
   public copies: Promise<Copy[]>;
 

src/main/entities/library/copy.ts

@@ -25,12 +25,7 @@ export class Copy extends Rateable(BaseEntity) {
 
   @OneToMany(
     () => CopyType,
-    (copyType: CopyType) => copyType.copy,
-    {
-      nullable: false,
-      onDelete: 'CASCADE',
-      onUpdate: 'CASCADE',
-    }
+    (copyType: CopyType) => copyType.copy
   )
   public types: Promise<CopyType[]>;
 

src/main/entities/library/site.ts

@@ -7,12 +7,7 @@ import { Source } from './source';
 export class Site extends MultiNamed(BaseEntity, 'SiteMultiName') {
   @OneToMany(
     () => Source,
-    (source: Source) => source.site,
-    {
-      nullable: false,
-      onDelete: 'CASCADE',
-      onUpdate: 'CASCADE',
-    }
+    (source: Source) => source.site
   )
   public sources: Promise<Source[]>;
 }