Merge branch '169-master-is-not-compiling' into 'master'

Resolve "master is not compiling"

Closes #169

See merge request swtp-block-ws17/arsnova-angular-frontend!103

src/app/services/http/in-memory-data.service.ts

-import { InMemoryDbService } from 'angular-in-memory-web-api';
-import { ContentType } from '../../models/content-type.enum';
-
-export class InMemoryDataService implements InMemoryDbService {
-  /**
-   * Gets called by the in memory db for generating ids for newly inserted entities.
-   * As the default genId function is only capable of generating numeric ids but we're
-   * using string ids (as per api) we're overwriting it relying on a stupid fallback for strings:
-   * append a '1' to the id of the last element
-   * @param {any[]} collection
-   * @param {string} collectionName
-   * @returns {any}
-   */
-  genId(collection: any[], collectionName: string): any {
-    // Get the id of the last element
-    const lastElementId = collection[collection.length - 1].id;
-    if (isNaN(lastElementId)) {
-      // Append '1' to the string id when the id is not convertable to a number
-      return lastElementId + '1';
-    }
-    // Convert id to a number, add 1 and convert back to string
-    return (+lastElementId + 1).toString();
-  }
-
-  createDb() {
-    const rooms = [
-      {
-        id: '1',
-        revision: '10',
-        shortId: '12345678',
-        abbreviation: 'abb',
-        name: 'ARSnova Testroom',
-        description: 'Refactoring ARSnova to look and feel good',
-        closed: true
-      },
-      {
-        id: '2',
-        revision: '11',
-        shortId: '23456789',
-        abbreviation: 'abb1',
-        name: 'Darkroom',
-        description: 'Here is where the 18+ stuff happens',
-        closed: false
-      },
-      {
-        id: '3',
-        revision: '11',
-        shortId: '34567890',
-        abbreviation: 'abb1',
-        name: 'Keller',
-        description: 'This is where the beer stehs',
-        closed: false
-      }
-    ];
-    const comments = [
-      {
-        id: '1',
-        roomId: '1',
-        userId: '1',
-        revision: '',
-        subject: 'testcomment',
-        body: 'adsasdasdasdasdas',
-        read: false,
-        creationTimestamp: new Date(Date.now()),
-      },
-      {
-        id: '2',
-        roomId: '1',
-        userId: '2',
-        revision: '',
-        subject: 'asdaskldmaskld',
-        body: 'knkdiasslkladskmdaskld',
-        read: false,
-        creationTimestamp: new Date(Date.now()),
-      },
-      {
-        id: '3',
-        roomId: '2',
-        userId: '1',
-        revision: '',
-        subject: 'testcomment',
-        body: 'adsasdasdasdasdas',
-        read: false,
-        creationTimestamp: new Date(Date.now()),
-      }
-    ];
-
-    const contents = [
-      {
-        contentId: '1',
-        revision: '1',
-        roomId: '1',
-        subject: 'Text Content 1',
-        body: 'This is a body of a text content.',
-        round: 1,
-        format: ContentType.TEXT
-      },
-      {
-        contentId: '2',
-        revision: '2',
-        roomId: '1',
-        subject: 'Text Content 2',
-        body: 'testcontent alpha beta',
-        round: 1,
-        format: ContentType.TEXT
-      },
-      {
-        contentId: '3',
-        revision: '3',
-        roomId: '1',
-        subject: 'Text Content 3',
-        body: 'testcontent alpha beta',
-        round: 1,
-        format: ContentType.TEXT
-      },
-      {
-        contentId: '4',
-        revision: '4',
-        roomId: '1',
-        subject: 'Text Content 4',
-        body: 'testcontent alpha beta',
-        round: 1,
-        format: ContentType.TEXT
-      },
-      {
-        contentId: '5',
-        revision: '5',
-        roomId: '1',
-        subject: 'Choice Content 1',
-        body: 'testcontent alpha beta',
-        round: 1,
-        format: ContentType.CHOICE
-      },
-      {
-        contentId: '6',
-        revision: '2',
-        roomId: '3',
-        subject: 'Text Content 1',
-        body: 'This is yet another body of a text content.',
-        round: 2,
-        format: ContentType.TEXT
-      }
-    ];
-
-    const textAnswers = [
-      {
-        id: '1',
-        revision: '1',
-        contentId: '1',
-        round: '1',
-        subject: 'Textaufgabe 1',
-        body: 'gamma, delta',
-        read: 'yes',
-        creationTimestamp: Date,
-      },
-      {
-        id: '2',
-        revision: '2',
-        contentId: '1',
-        round: '1',
-        subject: 'Textaufgabe 1',
-        body: 'epsilon, phi',
-        read: 'yes',
-        creationTimestamp: Date,
-      },
-      {
-        id: '3',
-        revision: '3',
-        contentId: '2',
-        round: '3',
-        subject: 'Textaufgabe 2',
-        body: 'Der Turm ist 20m hoch',
-        read: 'yes',
-        creationTimestamp: Date,
-      }
-    ];
-
-    const choiceAnswers = [
-      {
-        id: '1',
-        revision: '1',
-        contentId: '5',
-        round: 0,
-        selectedChoiceIndexes: [ 1, 2 ],
-      }
-    ];
-    return { rooms, comments, contents, textAnswers, choiceAnswers };
-  }
-}