Question + Answer entities added, some improvements

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

@@ -1,7 +1,7 @@
-import {Entity, ManyToOne, OneToMany, PrimaryKey, Property} from "@mikro-orm/core";
+import {Entity, Enum, ManyToOne, OneToMany, PrimaryKey, Property} from "@mikro-orm/core";
 import {Class} from "../classes/class.entity";
-import {LearningPath} from "../content/learning-path.entity";
 import {Group} from "./group.entity"
+import {Language} from "../content/language";
 
 @Entity()
 export class Assignment {
@@ -17,8 +17,11 @@ export class Assignment {
     @Property({type: "text"})
     description!: string;
 
-    @ManyToOne({entity: () => LearningPath})
+    @Property({type: "string"})
-    task!: LearningPath;
+    learningPathHruid!: string;
+
+    @Enum({items: () => Language})
+    learningPathLanguage!: Language;
 
     @OneToMany({entity: () => Group, mappedBy: "assignment"})
     groups!: Group[];

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

@@ -1,22 +1,28 @@
 import {Student} from "../users/student.entity";
 import {Group} from "./group.entity";
-import {Entity, Enum, ManyToOne, PrimaryKey} from "@mikro-orm/core";
+import {Entity, Enum, ManyToOne, PrimaryKey, Property} from "@mikro-orm/core";
 import {Language} from "../content/language";
 
 @Entity()
-export class Submission {
+export class Submission<T> {
     @ManyToOne({entity: () => Student, primary: true})
     submitter!: Student;
 
-    @ManyToOne({entity: () => Group, primary: true})
-    onBehalfOf!: Group;
-
     @PrimaryKey({type: "string"})
-    hruid!: string;
+    learningObjectHruid!: string;
 
     @Enum({items: () => Language, primary: true})
-    language!: Language;
+    learningObjectLanguage!: Language;
 
     @PrimaryKey({type: "string"})
-    version: number = "1";
+    learningObjectVersion: number = "1";
+
+    @PrimaryKey({type: "datetime"})
+    submissionTime: Date;
+
+    @ManyToOne({entity: () => Group, nullable: true})
+    onBehalfOf?: Group;
+
+    @Property({type: "json"})
+    content!: T;
 }

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

@@ -1,9 +1,10 @@
-import {Embeddable, Embedded, Entity, Enum, OneToMany, PrimaryKey, Property} from "@mikro-orm/core";
+import {Embeddable, Embedded, Entity, Enum, ManyToMany, OneToMany, PrimaryKey, Property} from "@mikro-orm/core";
 import {Language} from "./language";
 import {Attachment} from "./attachment.entity";
+import {Teacher} from "../users/teacher.entity";
 
 @Entity()
-export class LearningObject {
+export class LearningObject<R> {
     @PrimaryKey({type: "string"})
     hruid!: string;
 
@@ -13,8 +14,8 @@ export class LearningObject {
     @PrimaryKey({type: "string"})
     version: number = "1";
 
-    @PrimaryKey({type: "string"})
+    @ManyToMany({entity: () => Teacher})
-    author!: string;
+    admins!: Teacher[];
 
     @Property({type: "string"})
     title!: string;
@@ -52,6 +53,9 @@ export class LearningObject {
     @Property({type: "integer"})
     estimatedTime!: number;
 
+    @Embedded({entity: () => ReturnValue})
+    returnValue: ReturnValue<R>;
+
     @Property({type: "bool"})
     available: boolean = true;
 
@@ -75,12 +79,12 @@ export class EducationalGoal {
 }
 
 @Embeddable()
-export class ReturnValue {
+export class ReturnValue<R> {
     @Property({type: "string"})
     callbackUrl: string;
 
     @Property({type: "json"})
-    callbackSchema: Object;
+    callbackSchema: R;
 }
 
 export enum ContentType {

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

@@ -1,5 +1,6 @@
-import {Embeddable, Embedded, Entity, Enum, OneToOne, PrimaryKey, Property} from "@mikro-orm/core";
+import {Embeddable, Embedded, Entity, Enum, ManyToMany, OneToOne, PrimaryKey, Property} from "@mikro-orm/core";
 import {Language} from "./language";
+import {Teacher} from "../users/teacher.entity";
 
 @Entity()
 export class LearningPath {
@@ -9,6 +10,9 @@ export class LearningPath {
     @Enum({items: () => Language, primary: true})
     language!: Language;
 
+    @ManyToMany({entity: () => Teacher})
+    admins!: Teacher[];
+
     @Property({type: "string"})
     title!: string;
 

backend/src/entities/questions/answer.entity.ts

@@ -0,0 +1,19 @@
+import {Entity, ManyToOne, PrimaryKey, Property} from "@mikro-orm/core";
+import {Question} from "./question.entity";
+import {Teacher} from "../users/teacher.entity";
+
+@Entity()
+export class Answer {
+
+    @ManyToOne({entity: () => Teacher, primary: true})
+    author!: Teacher;
+
+    @ManyToOne({entity: () => Question, primary: true})
+    toQuestion!: Question;
+
+    @PrimaryKey({type: "datetime"})
+    timestamp: Date;
+
+    @Property({type: "text"})
+    content: string;
+}

backend/src/entities/questions/question.entity.ts

@@ -0,0 +1,24 @@
+import {Entity, Enum, ManyToOne, PrimaryKey, Property} from "@mikro-orm/core";
+import {Language} from "../content/language";
+import {Student} from "../users/student.entity";
+
+@Entity()
+export class Question {
+    @ManyToOne({entity: () => Student, primary: true})
+    author!: Student;
+
+    @PrimaryKey({type: "string"})
+    learningObjectHruid!: string;
+
+    @Enum({items: () => Language, primary: true})
+    learningObjectLanguage!: Language;
+
+    @PrimaryKey({type: "string"})
+    learningObjectVersion!: number = "1";
+
+    @PrimaryKey({type: "datetime"})
+    timestamp!: Date;
+
+    @Property({type: "text"})
+    content!: string;
+}