Fixed errors in entity definitions

backend/src/entities/assigments/assignment.entity.ts

@@ -14,12 +14,12 @@ export class Assignment {
     @Property({type: "string"})
     title!: string;
 
-    @Property({type: "longtext"})
+    @Property({type: "text"})
     description!: string;
 
     @ManyToOne({entity: () => LearningPath})
     task!: LearningPath;
 
-    @OneToMany({entity: () => Group})
+    @OneToMany({entity: () => Group, mappedBy: "assignment"})
     groups!: Group[];
 }

backend/src/entities/assigments/group.entity.ts

@@ -10,6 +10,6 @@ export class Group {
     @PrimaryKey({type: "integer"})
     groupNumber!: number;
 
-    @ManyToMany({entity: Student})
+    @ManyToMany({entity: () => Student})
     members!: Student[];
 }

backend/src/entities/content/attachment.entity.ts

@@ -1,6 +1,7 @@
-import {ManyToOne, PrimaryKey, Property} from "@mikro-orm/core";
+import {Entity, ManyToOne, PrimaryKey, Property} from "@mikro-orm/core";
 import {LearningObject} from "./learning-object.entity";
 
+@Entity()
 export class Attachment {
     @ManyToOne({entity: () => LearningObject, primary: true})
     learningObject!: LearningObject;

backend/src/entities/content/learning-object.entity.ts

@@ -19,7 +19,7 @@ export class LearningObject {
     @Property({type: "string"})
     title!: string;
 
-    @Property({type: "longtext"})
+    @Property({type: "text"})
     description!: string;
 
     @Property({type: "string"})
@@ -58,7 +58,7 @@ export class LearningObject {
     @Property({type: "string", nullable: true})
     contentLocation?: string;
 
-    @OneToMany({entity: Attachment})
+    @OneToMany({entity: () => Attachment, mappedBy: "learningObject"})
     attachments: Attachment[] = [];
 
     @Property({type: "blob"})

backend/src/entities/content/learning-path.entity.ts

@@ -1,15 +1,18 @@
-import {Embeddable, Embedded, Entity, Enum, OneToOne, Property} from "@mikro-orm/core";
+import {Embeddable, Embedded, Entity, Enum, OneToOne, PrimaryKey, Property} from "@mikro-orm/core";
 import {Language} from "./language";
 
 @Entity()
 export class LearningPath {
-    @Enum({items: () => Language})
+    @PrimaryKey({type: "string"})
+    hruid!: string;
+
+    @Enum({items: () => Language, primary: true})
     language!: Language;
 
     @Property({type: "string"})
     title!: string;
 
-    @Property({type: "longtext"})
+    @Property({type: "text"})
     description!: string;
 
     @Property({type: "blob"})

backend/src/entities/users/student.entity.ts

@@ -1,9 +1,13 @@
 import {User} from "./user.entity";
 import {Collection, Entity, ManyToMany} from '@mikro-orm/core';
 import {Class} from "../classes/class.entity";
+import {Group} from "../assigments/group.entity";
 
 @Entity()
 export class Student extends User {
     @ManyToMany(() => Class)
     classes!: Collection<Class>;
+
+    @ManyToMany(() => Group)
+    groups!: Collection<Group>;
 }