Can block creation of new choices in survey

src/controllers/Routes.ts

@@ -280,6 +280,8 @@ export const Routes : Route[] = [
 
 	{path: "/surveys/cancel_response", cb: (h) => SurveyController.CancelResponse(h)},
 
+	{path: "/survey/block_new_choices_creation", cb: (h) => SurveyController.BlockNewChoicesCreation(h)},
+
 
 	// Notifications controller
 	{path: "/notifications/count_unread", cb: (h) => NotificationsController.CountUnread(h)},

src/controllers/SurveyController.ts

@@ -2,6 +2,7 @@ import { Survey, SurveyChoice } from "../entities/Survey";
 import { RequestHandler } from "../entities/RequestHandler";
 import { SurveyHelper } from "../helpers/SurveyHelper";
 import { SurveyResponse } from "../entities/SurveyResponse";
+import { PostAccessLevel } from "../entities/Post";
 
 /**
  * Survey controller
@@ -43,6 +44,19 @@ export class SurveyController {
 		h.success();
 	}
 
+	/**
+	 * Block the creation of new survey choices
+	 * 
+	 * @param h Request handler
+	 */
+	public static async BlockNewChoicesCreation(h: RequestHandler) {
+		const surveyID = await this.PostSurveyIDFromPostID(h, "postID", PostAccessLevel.FULL_ACCESS);
+
+		await SurveyHelper.BlockNewChoicesCreation(surveyID);
+
+		h.success();
+	}
+
 
 	/**
 	 * Turn a survey into an API entry
@@ -76,9 +90,11 @@ export class SurveyController {
 	 * @param h Request handler
 	 * @param field The name of the POST field containing the
 	 * POST id
+	 * @param minLevel Minimal access level to the post
 	 */
-	private static async PostSurveyIDFromPostID(h: RequestHandler, field: string) : Promise<number> {
+	private static async PostSurveyIDFromPostID(h: RequestHandler, field: string, 
-		const postID = await h.postPostIDWithAccess(field);
+		minLevel?: PostAccessLevel) : Promise<number> {	
+		const postID = await h.postPostIDWithAccess(field, minLevel);
 		return await SurveyHelper.GetID(postID);
 	}
 

src/helpers/SurveyHelper.ts

@@ -135,6 +135,23 @@ export class SurveyHelper {
 		});
 	}
 
+	/**
+	 * Block new survey choices from being created
+	 * 
+	 * @param surveyID Target survey ID
+	 */
+	public static async BlockNewChoicesCreation(surveyID: number) {
+		await DatabaseHelper.UpdateRows({
+			table: SURVEY_INFO_TABLE,
+			where: {
+				"ID": surveyID
+			},
+			set: {
+				allow_new_choices: 0
+			}
+		})
+	}
+
 	/**
 	 * Delete the survey associated to a post
 	 *