2 files changed, 6 insertions, 0 deletions
diff --git a/models/polls/poll.model.ts b/models/polls/poll.model.ts
index 7f6be9a..6f3d088 100644
--- a/models/polls/poll.model.ts
+++ b/models/polls/poll.model.ts
@@ -1,5 +1,10 @@
 import { Model, model } from 'mongoose';
 import { PollSchema, pollSchema } from './poll.schema';
 
+pollSchema.methods.vote = function(userId: string, which: 'left' | 'right'): PollSchema {
+  this.contents[which].votes.push(userId);
+  return this.save();
+}
+
 export default model<PollSchema, Model<PollSchema>>('Poll', pollSchema);
 
diff --git a/models/polls/poll.schema.ts b/models/polls/poll.schema.ts
index fd6751c..0caa6b2 100644
--- a/models/polls/poll.schema.ts
+++ b/models/polls/poll.schema.ts
@@ -11,6 +11,7 @@ export interface PollSchema extends Document {
     right: ImageDataSchema;
   };
   authorId: string;
+  vote: (userId: string, which: 'left' | 'right') => void;
 }
 
 export const imageDataSchema = {