diff --git a/client/src/app/core/app-config.ts b/client/src/app/core/app-config.ts
index 487042193..99a049f06 100644
--- a/client/src/app/core/app-config.ts
+++ b/client/src/app/core/app-config.ts
@@ -17,7 +17,7 @@ export interface ModelEntry extends BaseModelEntry {
 }
 
 export interface SearchableModelEntry extends BaseModelEntry {
-    viewModel: new (...args: any[]) => BaseViewModel & Searchable;
+    viewModel: ViewModelConstructor<BaseViewModel & Searchable>;
     searchOrder: number;
 }
 
diff --git a/client/src/app/core/core-services/autoupdate.service.ts b/client/src/app/core/core-services/autoupdate.service.ts
index 2944a4cae..49ae85aaa 100644
--- a/client/src/app/core/core-services/autoupdate.service.ts
+++ b/client/src/app/core/core-services/autoupdate.service.ts
@@ -129,7 +129,7 @@ export class AutoupdateService {
      * @returns A list of basemodels constructed from the given models.
      */
     private mapObjectsToBaseModels(collection: string, models: object[]): BaseModel[] {
-        const targetClass = this.modelMapper.getModelConstructorFromCollectionString(collection);
+        const targetClass = this.modelMapper.getModelConstructor(collection);
         if (!targetClass) {
             throw new Error(`Unregistered resource ${collection}`);
         }
diff --git a/client/src/app/core/core-services/collectionStringMapper.service.ts b/client/src/app/core/core-services/collectionStringMapper.service.ts
index 81a348bd9..b91aeaa9a 100644
--- a/client/src/app/core/core-services/collectionStringMapper.service.ts
+++ b/client/src/app/core/core-services/collectionStringMapper.service.ts
@@ -5,20 +5,22 @@ import { BaseRepository } from 'app/core/repositories/base-repository';
 import { ViewModelConstructor, BaseViewModel } from 'app/site/base/base-view-model';
 
 /**
- * Holds a mapping entry with the matching collection string,
- * model constructor, view model constructor and the repository
+ * Unifies the ModelConstructor and ViewModelConstructor.
  */
-type MappingEntry = [
-    string,
-    ModelConstructor<BaseModel>,
-    ViewModelConstructor<BaseViewModel>,
-    BaseRepository<BaseViewModel, BaseModel>
-];
+interface UnifiedConstructors {
+    COLLECTIONSTRING: string;
+    new (...args: any[]): any;
+}
+
+/**
+ * Every types supported: (View)ModelConstructors, repos and collectionstrings.
+ */
+type TypeIdentifier = UnifiedConstructors | BaseRepository<any, any> | string;
 
 /**
  * Registeres the mapping between collection strings, models constructors, view
  * model constructors and repositories.
- * All models ned to be registered!
+ * All models need to be registered!
  */
 @Injectable({
     providedIn: 'root'
@@ -28,28 +30,11 @@ export class CollectionStringMapperService {
      * Maps collection strings to mapping entries
      */
     private collectionStringMapping: {
-        [collectionString: string]: MappingEntry;
-    } = {};
-
-    /**
-     * Maps models to mapping entries
-     */
-    private modelMapping: {
-        [modelName: string]: MappingEntry;
-    } = {};
-
-    /**
-     * Maps view models to mapping entries
-     */
-    private viewModelMapping: {
-        [viewModelname: string]: MappingEntry;
-    } = {};
-
-    /**
-     * Maps repositories to mapping entries
-     */
-    private repositoryMapping: {
-        [repositoryName: string]: MappingEntry;
+        [collectionString: string]: [
+            ModelConstructor<BaseModel>,
+            ViewModelConstructor<BaseViewModel>,
+            BaseRepository<BaseViewModel, BaseModel>
+        ];
     } = {};
 
     public constructor() {}
@@ -65,71 +50,42 @@ export class CollectionStringMapperService {
         viewModel: ViewModelConstructor<V>,
         repository: BaseRepository<V, M>
     ): void {
-        const entry: MappingEntry = [collectionString, model, viewModel, repository];
-        this.collectionStringMapping[collectionString] = entry;
-        this.modelMapping[model.name] = entry;
-        this.viewModelMapping[viewModel.name] = entry;
-        this.repositoryMapping[repository.name] = entry;
+        this.collectionStringMapping[collectionString] = [model, viewModel, repository];
     }
 
-    // The following accessors are for giving one of EntryType by given a different object
-    // of EntryType.
-
-    public getCollectionStringFromModelConstructor<M extends BaseModel>(ctor: ModelConstructor<M>): string {
-        return this.modelMapping[ctor.name][0];
-    }
-    public getCollectionStringFromViewModelConstructor<V extends BaseViewModel>(ctor: ViewModelConstructor<V>): string {
-        return this.viewModelMapping[ctor.name][0];
-    }
-    public getCollectionStringFromRepository<M extends BaseModel, V extends BaseViewModel>(
-        repository: BaseRepository<V, M>
-    ): string {
-        return this.repositoryMapping[repository.name][0];
+    /**
+     * @param obj The object to get the collection string from.
+     * @returns the collectionstring
+     */
+    public getCollectionString(obj: TypeIdentifier): string {
+        if (typeof obj === 'string') {
+            return obj;
+        } else {
+            return obj.COLLECTIONSTRING;
+        }
     }
 
-    public getModelConstructorFromCollectionString<M extends BaseModel>(collectionString: string): ModelConstructor<M> {
-        return this.collectionStringMapping[collectionString][1] as ModelConstructor<M>;
-    }
-    public getModelConstructorFromViewModelConstructor<V extends BaseViewModel, M extends BaseModel>(
-        ctor: ViewModelConstructor<V>
-    ): ModelConstructor<M> {
-        return this.viewModelMapping[ctor.name][1] as ModelConstructor<M>;
-    }
-    public getModelConstructorFromRepository<V extends BaseViewModel, M extends BaseModel>(
-        repository: BaseRepository<V, M>
-    ): ModelConstructor<M> {
-        return this.repositoryMapping[repository.name][1] as ModelConstructor<M>;
+    /**
+     * @param obj The object to get the model constructor from.
+     * @returns the model constructor
+     */
+    public getModelConstructor<M extends BaseModel>(obj: TypeIdentifier): ModelConstructor<M> {
+        return this.collectionStringMapping[this.getCollectionString(obj)][0] as ModelConstructor<M>;
     }
 
-    public getViewModelConstructorFromCollectionString<M extends BaseViewModel>(
-        collectionString: string
-    ): ViewModelConstructor<M> {
-        return this.collectionStringMapping[collectionString][2] as ViewModelConstructor<M>;
-    }
-    public getViewModelConstructorFromModelConstructor<V extends BaseViewModel, M extends BaseModel>(
-        ctor: ModelConstructor<M>
-    ): ViewModelConstructor<V> {
-        return this.modelMapping[ctor.name][2] as ViewModelConstructor<V>;
-    }
-    public getViewModelConstructorFromRepository<V extends BaseViewModel, M extends BaseModel>(
-        repository: BaseRepository<V, M>
-    ): ViewModelConstructor<V> {
-        return this.repositoryMapping[repository.name][2] as ViewModelConstructor<V>;
+    /**
+     * @param obj The object to get the view model constructor from.
+     * @returns the view model constructor
+     */
+    public getViewModelConstructor<M extends BaseViewModel>(obj: TypeIdentifier): ViewModelConstructor<M> {
+        return this.collectionStringMapping[this.getCollectionString(obj)][1] as ViewModelConstructor<M>;
     }
 
-    public getRepositoryFromCollectionString<V extends BaseViewModel, M extends BaseModel>(
-        collectionString: string
-    ): BaseRepository<V, M> {
-        return this.collectionStringMapping[collectionString][3] as BaseRepository<V, M>;
-    }
-    public getRepositoryFromModelConstructor<V extends BaseViewModel, M extends BaseModel>(
-        ctor: ModelConstructor<M>
-    ): BaseRepository<V, M> {
-        return this.modelMapping[ctor.name][3] as BaseRepository<V, M>;
-    }
-    public getRepositoryFromViewModelConstructor<V extends BaseViewModel, M extends BaseModel>(
-        ctor: ViewModelConstructor<V>
-    ): BaseRepository<V, M> {
-        return this.viewModelMapping[ctor.name][3] as BaseRepository<V, M>;
+    /**
+     * @param obj The object to get the repository from.
+     * @returns the repository
+     */
+    public getRepository<V extends BaseViewModel, M extends BaseModel>(obj: TypeIdentifier): BaseRepository<V, M> {
+        return this.collectionStringMapping[this.getCollectionString(obj)][2] as BaseRepository<V, M>;
     }
 }
diff --git a/client/src/app/core/core-services/data-store.service.ts b/client/src/app/core/core-services/data-store.service.ts
index 895f0c1ab..46974db24 100644
--- a/client/src/app/core/core-services/data-store.service.ts
+++ b/client/src/app/core/core-services/data-store.service.ts
@@ -187,7 +187,7 @@ export class DataStoreService {
         const storage: ModelStorage = {};
         Object.keys(serializedStore).forEach(collectionString => {
             storage[collectionString] = {} as ModelCollection;
-            const target = this.modelMapper.getModelConstructorFromCollectionString(collectionString);
+            const target = this.modelMapper.getModelConstructor(collectionString);
             if (target) {
                 Object.keys(serializedStore[collectionString]).forEach(id => {
                     const data = JSON.parse(serializedStore[collectionString][id]);
@@ -218,7 +218,7 @@ export class DataStoreService {
         if (typeof collectionType === 'string') {
             return collectionType;
         } else {
-            return this.modelMapper.getCollectionStringFromModelConstructor(collectionType);
+            return this.modelMapper.getCollectionString(collectionType);
         }
     }
 
diff --git a/client/src/app/core/core-services/time-travel.service.ts b/client/src/app/core/core-services/time-travel.service.ts
index 86de9a804..e36e155c7 100644
--- a/client/src/app/core/core-services/time-travel.service.ts
+++ b/client/src/app/core/core-services/time-travel.service.ts
@@ -68,7 +68,7 @@ export class TimeTravelService {
             [collectionString, id] = historyObject.element_id.split(':');
 
             if (historyObject.full_data) {
-                const targetClass = this.modelMapperService.getModelConstructorFromCollectionString(collectionString);
+                const targetClass = this.modelMapperService.getModelConstructor(collectionString);
                 await this.DS.add([new targetClass(historyObject.full_data)]);
             } else {
                 await this.DS.remove(collectionString, [+id]);
diff --git a/client/src/app/core/core-services/view-model-store.service.ts b/client/src/app/core/core-services/view-model-store.service.ts
index 941aafbf2..ded3f9384 100644
--- a/client/src/app/core/core-services/view-model-store.service.ts
+++ b/client/src/app/core/core-services/view-model-store.service.ts
@@ -23,11 +23,7 @@ export class ViewModelStoreService {
     private getRepository<T extends BaseViewModel>(
         collectionType: ViewModelConstructor<T> | string
     ): BaseRepository<T, any> {
-        if (typeof collectionType === 'string') {
-            return this.mapperService.getRepositoryFromCollectionString(collectionType) as BaseRepository<T, any>;
-        } else {
-            return this.mapperService.getRepositoryFromViewModelConstructor(collectionType as ViewModelConstructor<T>);
-        }
+        return this.mapperService.getRepository(collectionType) as BaseRepository<T, any>;
     }
 
     /**
diff --git a/client/src/app/core/repositories/base-repository.ts b/client/src/app/core/repositories/base-repository.ts
index 51de67707..5582a97d0 100644
--- a/client/src/app/core/repositories/base-repository.ts
+++ b/client/src/app/core/repositories/base-repository.ts
@@ -8,8 +8,10 @@ import { Identifiable } from '../../shared/models/base/identifiable';
 import { auditTime } from 'rxjs/operators';
 import { ViewModelStoreService } from '../core-services/view-model-store.service';
 import { OnAfterAppsLoaded } from '../onAfterAppsLoaded';
+import { Collection } from 'app/shared/models/base/collection';
 
-export abstract class BaseRepository<V extends BaseViewModel, M extends BaseModel> implements OnAfterAppsLoaded {
+export abstract class BaseRepository<V extends BaseViewModel, M extends BaseModel>
+    implements OnAfterAppsLoaded, Collection {
     /**
      * Stores all the viewModel in an object
      */
@@ -30,10 +32,18 @@ export abstract class BaseRepository<V extends BaseViewModel, M extends BaseMode
      */
     protected readonly generalViewModelSubject: Subject<V> = new Subject<V>();
 
-    private _name: string;
+    private _collectionString: string;
 
-    public get name(): string {
-        return this._name;
+    public get collectionString(): string {
+        return this._collectionString;
+    }
+
+    /**
+     * Needed for the collectionStringMapper service to treat repositories the same as
+     * ModelConstructors and ViewModelConstructors.
+     */
+    public get COLLECTIONSTRING(): string {
+        return this._collectionString;
     }
 
     /**
@@ -52,7 +62,7 @@ export abstract class BaseRepository<V extends BaseViewModel, M extends BaseMode
         protected baseModelCtor: ModelConstructor<M>,
         protected depsModelCtors?: ModelConstructor<BaseModel>[]
     ) {
-        this._name = baseModelCtor.name;
+        this._collectionString = baseModelCtor.COLLECTIONSTRING;
     }
 
     public onAfterAppsLoaded(): void {
@@ -82,10 +92,7 @@ export abstract class BaseRepository<V extends BaseViewModel, M extends BaseMode
         // My quess: This must trigger an autoupdate also for this model, because some IDs changed, so the
         // affected models will be newly created by the primaryModelChangeSubject.
         this.DS.deletedObservable.subscribe(model => {
-            if (
-                model.collection ===
-                this.collectionStringMapperService.getCollectionStringFromModelConstructor(this.baseModelCtor)
-            ) {
+            if (model.collection === this.collectionStringMapperService.getCollectionString(this.baseModelCtor)) {
                 delete this.viewModelStore[model.id];
                 this.updateAllObservables(model.id);
             }
diff --git a/client/src/app/shared/models/base/base-model.ts b/client/src/app/shared/models/base/base-model.ts
index 20f996644..6b7443217 100644
--- a/client/src/app/shared/models/base/base-model.ts
+++ b/client/src/app/shared/models/base/base-model.ts
@@ -2,7 +2,10 @@ import { Deserializable } from './deserializable';
 import { Identifiable } from './identifiable';
 import { Collection } from './collection';
 
-export type ModelConstructor<T extends BaseModel<T>> = new (...args: any[]) => T;
+export interface ModelConstructor<T extends BaseModel<T>> {
+    COLLECTIONSTRING: string;
+    new (...args: any[]): T;
+}
 
 /**
  * Abstract parent class to set rules and functions for all models.
diff --git a/client/src/app/site/agenda/models/view-item.ts b/client/src/app/site/agenda/models/view-item.ts
index 48da0747b..eb6c3f1d4 100644
--- a/client/src/app/site/agenda/models/view-item.ts
+++ b/client/src/app/site/agenda/models/view-item.ts
@@ -4,6 +4,8 @@ import { Speaker } from 'app/shared/models/agenda/speaker';
 import { BaseAgendaViewModel, isAgendaBaseModel } from 'app/site/base/base-agenda-view-model';
 
 export class ViewItem extends BaseViewModel {
+    public static COLLECTIONSTRING = Item.COLLECTIONSTRING;
+
     private _item: Item;
     private _contentObject: BaseAgendaViewModel;
 
diff --git a/client/src/app/site/agenda/models/view-topic.ts b/client/src/app/site/agenda/models/view-topic.ts
index c037da9b2..7ff96d190 100644
--- a/client/src/app/site/agenda/models/view-topic.ts
+++ b/client/src/app/site/agenda/models/view-topic.ts
@@ -11,6 +11,8 @@ import { BaseViewModel } from 'app/site/base/base-view-model';
  * @ignore
  */
 export class ViewTopic extends BaseAgendaViewModel {
+    public static COLLECTIONSTRING = Topic.COLLECTIONSTRING;
+
     protected _topic: Topic;
     private _attachments: ViewMediafile[];
     private _agendaItem: ViewItem;
diff --git a/client/src/app/site/assignments/models/view-assignment.ts b/client/src/app/site/assignments/models/view-assignment.ts
index 394e11ee0..fb829c399 100644
--- a/client/src/app/site/assignments/models/view-assignment.ts
+++ b/client/src/app/site/assignments/models/view-assignment.ts
@@ -8,6 +8,8 @@ import { ViewTag } from 'app/site/tags/models/view-tag';
 import { BaseViewModel } from 'app/site/base/base-view-model';
 
 export class ViewAssignment extends BaseAgendaViewModel {
+    public static COLLECTIONSTRING = Assignment.COLLECTIONSTRING;
+
     private _assignment: Assignment;
     private _relatedUser: ViewUser[];
     private _agendaItem: ViewItem;
diff --git a/client/src/app/site/base/base-view-model.ts b/client/src/app/site/base/base-view-model.ts
index b26661021..973b7eea5 100644
--- a/client/src/app/site/base/base-view-model.ts
+++ b/client/src/app/site/base/base-view-model.ts
@@ -2,7 +2,10 @@ import { Displayable } from './displayable';
 import { Identifiable } from '../../shared/models/base/identifiable';
 import { Collection } from 'app/shared/models/base/collection';
 
-export type ViewModelConstructor<T extends BaseViewModel> = new (...args: any[]) => T;
+export interface ViewModelConstructor<T extends BaseViewModel> {
+    COLLECTIONSTRING: string;
+    new (...args: any[]): T;
+}
 
 /**
  * Base class for view models. alls view models should have titles.
diff --git a/client/src/app/site/common/models/view-chatmessage.ts b/client/src/app/site/common/models/view-chatmessage.ts
index e4e1759ea..3803d4e5f 100644
--- a/client/src/app/site/common/models/view-chatmessage.ts
+++ b/client/src/app/site/common/models/view-chatmessage.ts
@@ -2,6 +2,8 @@ import { ChatMessage } from 'app/shared/models/core/chat-message';
 import { BaseViewModel } from 'app/site/base/base-view-model';
 
 export class ViewChatMessage extends BaseViewModel {
+    public static COLLECTIONSTRING = ChatMessage.COLLECTIONSTRING;
+
     private _chatMessage: ChatMessage;
 
     /**
diff --git a/client/src/app/site/config/models/view-config.ts b/client/src/app/site/config/models/view-config.ts
index 484b0ec5e..793a2bfb5 100644
--- a/client/src/app/site/config/models/view-config.ts
+++ b/client/src/app/site/config/models/view-config.ts
@@ -36,6 +36,8 @@ interface ConfigConstant {
  * The view model for configs.
  */
 export class ViewConfig extends BaseViewModel {
+    public static COLLECTIONSTRING = Config.COLLECTIONSTRING;
+
     /**
      * The underlying config.
      */
@@ -62,15 +64,15 @@ export class ViewConfig extends BaseViewModel {
     }
 
     public get id(): number {
-        return this.config ? this.config.id : null;
+        return this.config.id;
     }
 
     public get key(): string {
-        return this.config ? this.config.key : null;
+        return this.config.key;
     }
 
     public get value(): Object {
-        return this.config ? this.config.value : null;
+        return this.config.value;
     }
 
     public get label(): string {
diff --git a/client/src/app/site/history/models/view-history.ts b/client/src/app/site/history/models/view-history.ts
index 4dbaf99e8..8d055d8ba 100644
--- a/client/src/app/site/history/models/view-history.ts
+++ b/client/src/app/site/history/models/view-history.ts
@@ -6,6 +6,8 @@ import { ViewUser } from 'app/site/users/models/view-user';
  * View model for history objects
  */
 export class ViewHistory extends BaseViewModel {
+    public static COLLECTIONSTRING = History.COLLECTIONSTRING;
+
     /**
      * Private BaseModel of the history
      */
diff --git a/client/src/app/site/mediafiles/models/view-mediafile.ts b/client/src/app/site/mediafiles/models/view-mediafile.ts
index 804e76faf..5b2d8b060 100644
--- a/client/src/app/site/mediafiles/models/view-mediafile.ts
+++ b/client/src/app/site/mediafiles/models/view-mediafile.ts
@@ -5,6 +5,8 @@ import { SearchRepresentation } from 'app/core/ui-services/search.service';
 import { ViewUser } from 'app/site/users/models/view-user';
 
 export class ViewMediafile extends BaseViewModel implements Searchable {
+    public static COLLECTIONSTRING = Mediafile.COLLECTIONSTRING;
+
     private _mediafile: Mediafile;
     private _uploader: ViewUser;
 
diff --git a/client/src/app/site/motions/models/view-category.ts b/client/src/app/site/motions/models/view-category.ts
index cc40b76e5..9caa0ceee 100644
--- a/client/src/app/site/motions/models/view-category.ts
+++ b/client/src/app/site/motions/models/view-category.ts
@@ -11,6 +11,8 @@ import { Searchable } from 'app/site/base/searchable';
  * @ignore
  */
 export class ViewCategory extends BaseViewModel implements Searchable {
+    public static COLLECTIONSTRING = Category.COLLECTIONSTRING;
+
     private _category: Category;
 
     public get category(): Category {
diff --git a/client/src/app/site/motions/models/view-change-recommendation.ts b/client/src/app/site/motions/models/view-change-recommendation.ts
index b4dc647d4..874881c58 100644
--- a/client/src/app/site/motions/models/view-change-recommendation.ts
+++ b/client/src/app/site/motions/models/view-change-recommendation.ts
@@ -11,6 +11,8 @@ import { ViewUnifiedChange, ViewUnifiedChangeType } from './view-unified-change'
  * @ignore
  */
 export class ViewMotionChangeRecommendation extends BaseViewModel implements ViewUnifiedChange {
+    public static COLLECTIONSTRING = MotionChangeRecommendation.COLLECTIONSTRING;
+
     private _changeRecommendation: MotionChangeRecommendation;
 
     public get id(): number {
diff --git a/client/src/app/site/motions/models/view-motion-block.ts b/client/src/app/site/motions/models/view-motion-block.ts
index de69aaf7a..470b78190 100644
--- a/client/src/app/site/motions/models/view-motion-block.ts
+++ b/client/src/app/site/motions/models/view-motion-block.ts
@@ -11,6 +11,8 @@ import { BaseViewModel } from 'app/site/base/base-view-model';
  * @ignore
  */
 export class ViewMotionBlock extends BaseAgendaViewModel implements Searchable {
+    public static COLLECTIONSTRING = MotionBlock.COLLECTIONSTRING;
+
     private _motionBlock: MotionBlock;
     private _agendaItem: ViewItem;
 
diff --git a/client/src/app/site/motions/models/view-motion-comment-section.ts b/client/src/app/site/motions/models/view-motion-comment-section.ts
index 9baf6015c..183ea9453 100644
--- a/client/src/app/site/motions/models/view-motion-comment-section.ts
+++ b/client/src/app/site/motions/models/view-motion-comment-section.ts
@@ -10,6 +10,8 @@ import { ViewGroup } from 'app/site/users/models/view-group';
  * @ignore
  */
 export class ViewMotionCommentSection extends BaseViewModel {
+    public static COLLECTIONSTRING = MotionCommentSection.COLLECTIONSTRING;
+
     private _section: MotionCommentSection;
 
     private _readGroups: ViewGroup[];
diff --git a/client/src/app/site/motions/models/view-motion.ts b/client/src/app/site/motions/models/view-motion.ts
index d78bc6f97..ad6c4faf4 100644
--- a/client/src/app/site/motions/models/view-motion.ts
+++ b/client/src/app/site/motions/models/view-motion.ts
@@ -45,6 +45,8 @@ export enum ChangeRecoMode {
  * @ignore
  */
 export class ViewMotion extends BaseAgendaViewModel implements Searchable {
+    public static COLLECTIONSTRING = Motion.COLLECTIONSTRING;
+
     protected _motion: Motion;
     protected _category: ViewCategory;
     protected _submitters: ViewUser[];
diff --git a/client/src/app/site/motions/models/view-statute-paragraph.ts b/client/src/app/site/motions/models/view-statute-paragraph.ts
index 2e5240d58..f841be61d 100644
--- a/client/src/app/site/motions/models/view-statute-paragraph.ts
+++ b/client/src/app/site/motions/models/view-statute-paragraph.ts
@@ -11,6 +11,8 @@ import { SearchRepresentation } from 'app/core/ui-services/search.service';
  * @ignore
  */
 export class ViewStatuteParagraph extends BaseViewModel implements Searchable {
+    public static COLLECTIONSTRING = StatuteParagraph.COLLECTIONSTRING;
+
     private _paragraph: StatuteParagraph;
 
     public get statuteParagraph(): StatuteParagraph {
diff --git a/client/src/app/site/motions/models/view-workflow.ts b/client/src/app/site/motions/models/view-workflow.ts
index 027bee33c..9e0d7a306 100644
--- a/client/src/app/site/motions/models/view-workflow.ts
+++ b/client/src/app/site/motions/models/view-workflow.ts
@@ -7,6 +7,8 @@ import { BaseViewModel } from '../../base/base-view-model';
  * @ignore
  */
 export class ViewWorkflow extends BaseViewModel {
+    public static COLLECTIONSTRING = Workflow.COLLECTIONSTRING;
+
     private _workflow: Workflow;
 
     public get workflow(): Workflow {
diff --git a/client/src/app/site/projector/models/view-countdown.ts b/client/src/app/site/projector/models/view-countdown.ts
index a06bcb542..fd16373c5 100644
--- a/client/src/app/site/projector/models/view-countdown.ts
+++ b/client/src/app/site/projector/models/view-countdown.ts
@@ -4,6 +4,8 @@ import { ProjectorElementBuildDeskriptor } from 'app/site/base/projectable';
 import { BaseViewModel } from 'app/site/base/base-view-model';
 
 export class ViewCountdown extends BaseProjectableViewModel {
+    public static COLLECTIONSTRING = Countdown.COLLECTIONSTRING;
+
     private _countdown: Countdown;
 
     public get countdown(): Countdown {
diff --git a/client/src/app/site/projector/models/view-projector.ts b/client/src/app/site/projector/models/view-projector.ts
index 8009ebf59..2bfe8c5c9 100644
--- a/client/src/app/site/projector/models/view-projector.ts
+++ b/client/src/app/site/projector/models/view-projector.ts
@@ -2,6 +2,8 @@ import { BaseViewModel } from '../../base/base-view-model';
 import { Projector, ProjectorElements } from 'app/shared/models/core/projector';
 
 export class ViewProjector extends BaseViewModel {
+    public static COLLECTIONSTRING = Projector.COLLECTIONSTRING;
+
     private _projector: Projector;
 
     public get projector(): Projector {
diff --git a/client/src/app/site/projector/models/view-projectormessage.ts b/client/src/app/site/projector/models/view-projectormessage.ts
index 092677f9c..3c4a2711c 100644
--- a/client/src/app/site/projector/models/view-projectormessage.ts
+++ b/client/src/app/site/projector/models/view-projectormessage.ts
@@ -4,6 +4,8 @@ import { ProjectorMessage } from 'app/shared/models/core/projector-message';
 import { BaseViewModel } from 'app/site/base/base-view-model';
 
 export class ViewProjectorMessage extends BaseProjectableViewModel {
+    public static COLLECTIONSTRING = ProjectorMessage.COLLECTIONSTRING;
+
     private _message: ProjectorMessage;
 
     public get projctormessage(): ProjectorMessage {
diff --git a/client/src/app/site/tags/models/view-tag.ts b/client/src/app/site/tags/models/view-tag.ts
index fb5b07e4c..5464b982f 100644
--- a/client/src/app/site/tags/models/view-tag.ts
+++ b/client/src/app/site/tags/models/view-tag.ts
@@ -11,6 +11,8 @@ import { Searchable } from 'app/site/base/searchable';
  * @ignore
  */
 export class ViewTag extends BaseViewModel implements Searchable {
+    public static COLLECTIONSTRING = Tag.COLLECTIONSTRING;
+
     private _tag: Tag;
 
     public get tag(): Tag {
diff --git a/client/src/app/site/users/models/view-group.ts b/client/src/app/site/users/models/view-group.ts
index f972b6dcb..3949d0741 100644
--- a/client/src/app/site/users/models/view-group.ts
+++ b/client/src/app/site/users/models/view-group.ts
@@ -2,6 +2,8 @@ import { BaseViewModel } from '../../base/base-view-model';
 import { Group } from 'app/shared/models/users/group';
 
 export class ViewGroup extends BaseViewModel {
+    public static COLLECTIONSTRING = Group.COLLECTIONSTRING;
+
     private _group: Group;
 
     public get group(): Group {
diff --git a/client/src/app/site/users/models/view-personal-note.ts b/client/src/app/site/users/models/view-personal-note.ts
index c35b4a6e3..487dbfef6 100644
--- a/client/src/app/site/users/models/view-personal-note.ts
+++ b/client/src/app/site/users/models/view-personal-note.ts
@@ -2,6 +2,8 @@ import { BaseViewModel } from 'app/site/base/base-view-model';
 import { PersonalNote } from 'app/shared/models/users/personal-note';
 
 export class ViewPersonalNote extends BaseViewModel {
+    public static COLLECTIONSTRING = PersonalNote.COLLECTIONSTRING;
+
     private _personalNote: PersonalNote;
 
     public get personalNote(): PersonalNote {
diff --git a/client/src/app/site/users/models/view-user.ts b/client/src/app/site/users/models/view-user.ts
index bddeac5ec..8afef1b58 100644
--- a/client/src/app/site/users/models/view-user.ts
+++ b/client/src/app/site/users/models/view-user.ts
@@ -7,6 +7,8 @@ import { ViewGroup } from './view-group';
 import { BaseViewModel } from 'app/site/base/base-view-model';
 
 export class ViewUser extends BaseProjectableViewModel implements Searchable {
+    public static COLLECTIONSTRING = User.COLLECTIONSTRING;
+
     private _user: User;
     private _groups: ViewGroup[];