Unreact to comments

dbTools/post.js

@@ -90,11 +90,11 @@ postDB = (DB)=>{
         });
     }
 
-    DB.newCommentReaction = (postid, commentDate, userid, reaction) => {
+    DB.newCommentReaction = (postid, commentDate, profileid, reaction) => {
         const id = DB.ObjectID(postid);
         let update = {
             $set:{
-                ["comments.$.reactions." + userid]: reaction,
+                ["comments.$.reactions." + profileid]: reaction,
                 "comments.$.lastUpdated": new Date(),
                 lastUpdated: new Date()
             }            
@@ -108,6 +108,26 @@ postDB = (DB)=>{
         });
     }
 
+    DB.removeCommentReaction = (postid, commentDate, profileid) => {
+        const id = DB.ObjectID(postid);
+        let update = {
+            $unset:{
+                ["comments.$.reactions." + profileid]: '',
+                "comments.$.lastUpdated": new Date(),
+            },
+            $set: {
+                lastUpdated: new Date()
+            }            
+        }
+        return DB.postCols.updateOne({
+            _id: id,
+            "comments.createdAt": commentDate
+        }, update).catch((err)=>{
+            console.log(err);
+            return false;
+        });
+    }
+
     DB.getPosts = async (profileId, viewerProfileId) => {
         const profile = await DB.getProfile(viewerProfileId);
         let query = {};