include global abstain/no option

election polls with 'one vote per candidate' should have a
 global no/abstain option

client/src/app/core/repositories/assignments/assignment-repository.service.ts

@@ -214,10 +214,10 @@ export class AssignmentRepositoryService extends BaseAgendaContentObjectReposito
         const data = {
             assignment_id: originalPoll.assignment_id,
             votes: votes,
-            votesabstain: null,
+            votesabstain: poll.votesabstain || null,
             votescast: poll.votescast || null,
             votesinvalid: poll.votesinvalid || null,
-            votesno: null,
+            votesno: poll.votesno || null,
             votesvalid: poll.votesvalid || null
         };
         await this.httpService.put(`${this.restPollPath}${originalPoll.id}/`, data);

client/src/app/core/ui-services/poll.service.ts

@@ -6,7 +6,15 @@ import { _ } from 'app/core/translate/translation-marker';
  * The possible keys of a poll object that represent numbers.
  * TODO Should be 'key of MotionPoll|AssinmentPoll if type of key is number'
  */
-export type CalculablePollKey = 'votesvalid' | 'votesinvalid' | 'votescast' | 'yes' | 'no' | 'abstain';
+export type CalculablePollKey =
+    | 'votesvalid'
+    | 'votesinvalid'
+    | 'votescast'
+    | 'yes'
+    | 'no'
+    | 'abstain'
+    | 'votesno'
+    | 'votesabstain';
 
 /**
  * TODO: may be obsolete if the server switches to lower case only
@@ -119,8 +127,10 @@ export abstract class PollService {
             case 'yes':
                 return 'thumb_up';
             case 'no':
+            case 'votesno':
                 return 'thumb_down';
             case 'abstain':
+            case 'votesabstain':
                 return 'not_interested';
             // TODO case 'votescast':
             // sum
@@ -144,8 +154,10 @@ export abstract class PollService {
             case 'yes':
                 return 'Yes';
             case 'no':
+            case 'votesno':
                 return 'No';
             case 'abstain':
+            case 'votesabstain':
                 return 'Abstain';
             case 'votescast':
                 return _('Total votes cast');

client/src/app/shared/models/assignments/assignment-poll.ts

@@ -7,7 +7,7 @@ import { AssignmentPollOption } from './assignment-poll-option';
  * @ignore
  */
 export class AssignmentPoll extends Deserializer {
-    private static DECIMAL_FIELDS = ['votesvalid', 'votesinvalid', 'votescast'];
+    private static DECIMAL_FIELDS = ['votesvalid', 'votesinvalid', 'votescast', 'votesno', 'votesabstain'];
 
     public id: number;
     public pollmethod: AssignmentPollMethod;
@@ -15,6 +15,8 @@ export class AssignmentPoll extends Deserializer {
     public published: boolean;
     public options: AssignmentPollOption[];
     public votesvalid: number;
+    public votesno: number;
+    public votesabstain: number;
     public votesinvalid: number;
     public votescast: number;
     public has_votes: boolean;

client/src/app/site/assignments/components/assignment-poll-dialog/assignment-poll-dialog.component.ts

@@ -9,6 +9,11 @@ import { UserRepositoryService } from 'app/core/repositories/users/user-reposito
 import { ViewAssignmentPoll } from '../../models/view-assignment-poll';
 import { ViewAssignmentPollOption } from '../../models/view-assignment-poll-option';
 
+/**
+ * Vote entries included once for summary (e.g. total votes cast)
+ */
+type summaryPollKey = 'votescast' | 'votesvalid' | 'votesinvalid' | 'votesno' | 'votesabstain';
+
 /**
  * A dialog for updating the values of an assignment-related poll.
  */
@@ -21,7 +26,14 @@ export class AssignmentPollDialogComponent {
     /**
      * The summary values that will have fields in the dialog
      */
-    public sumValues: SummaryPollKey[] = ['votesvalid', 'votesinvalid', 'votescast'];
+    public get sumValues(): summaryPollKey[] {
+        const generalValues: summaryPollKey[] = ['votesvalid', 'votesinvalid', 'votescast'];
+        if (this.data.pollmethod === 'votes') {
+            return ['votesno', 'votesabstain', ...generalValues];
+        } else {
+            return generalValues;
+        }
+    }
 
     /**
      * List of accepted special non-numerical values.

client/src/app/site/assignments/models/view-assignment-poll.ts

@@ -35,10 +35,23 @@ export class ViewAssignmentPoll implements Identifiable, Updateable, Projectable
         return this.poll.published;
     }
 
+    public get votesno(): number {
+        return this.poll.votesno;
+    }
+    public set votesno(amount: number) {
+        this.poll.votesno = amount;
+    }
+
+    public get votesabstain(): number {
+        return this.poll.votesabstain;
+    }
+    public set votesabstain(amount: number) {
+        this.poll.votesabstain = amount;
+    }
+
     public get votesvalid(): number {
         return this.poll.votesvalid;
     }
-
     public set votesvalid(amount: number) {
         this.poll.votesvalid = amount;
     }
@@ -53,7 +66,6 @@ export class ViewAssignmentPoll implements Identifiable, Updateable, Projectable
     public get votescast(): number {
         return this.poll.votescast;
     }
-
     public set votescast(amount: number) {
         this.poll.votescast = amount;
     }

client/src/app/site/assignments/services/assignment-poll.service.ts

@@ -30,7 +30,7 @@ export class AssignmentPollService extends PollService {
     /**
      * list of poll keys that are numbers and can be part of a quorum calculation
      */
-    public pollValues: CalculablePollKey[] = ['votesvalid', 'votesinvalid', 'votescast'];
+    public pollValues: CalculablePollKey[] = ['votesno', 'votesabstain', 'votesvalid', 'votesinvalid', 'votescast'];
 
     /**
      * the method used for polls (as per config)
@@ -92,6 +92,7 @@ export class AssignmentPollService extends PollService {
                     if (Math.min(...yes) < 0) {
                         return null;
                     } else {
+                        // TODO: Counting 'No (and possibly 'Abstain') here?
                         return yes.reduce((a, b) => a + b);
                     }
                 } else {

client/src/app/slides/assignments/poll/poll-slide-data.ts

@@ -19,7 +19,7 @@ export interface PollSlideData {
         description?: string;
         has_votes?: boolean;
         pollmethod?: AssignmentPollMethod;
-        votesno?: string; // TODO: same conversion needed as for the PollModel
+        votesno?: string;
         votesabstain?: string;
         votesvalid?: string;
         votesinvalid?: string;