posting and commenting

dbTools/post.js

@@ -11,8 +11,43 @@ postDB = (DB)=>{
         });
     }
 
+    DB.newReaction = (postid, userid, reaction) => {
+        const id = DB.ObjectID(postid);
+        let update = {
+            $set:{
+                reactions:{
+                    [userid]: reaction
+                },
+                lastUpdated: new Date()
+            }            
+        }
+        return DB.postCols.updateOne({_id: id}, update).catch((err)=>{
+            console.log(err);
+            return false;
+        });
+    }
+
+    DB.removeReaction = (postid, userid) => {
+        const id = DB.ObjectID(postid);
+        let update = {
+            $unset:{
+                reactions:{
+                    [userid]: {}
+                }
+            },
+            $set: {
+                lastUpdated: new Date()
+            }            
+        }
+        return DB.postCols.updateOne({_id: id}, update).catch((err)=>{
+            console.log(err);
+            return false;
+        });
+    }
+
     DB.newComment = (postid, comment) => {
-        return DB.postCols.updateOne(postid, {
+        const id = DB.ObjectID(postid);
+        return DB.postCols.updateOne({_id: id}, {
             $push: {
                 comments: comment
             },
@@ -25,6 +60,25 @@ postDB = (DB)=>{
         });
     }
 
+    DB.newCommentReaction = (postid, commentDate, userid, reaction) => {
+        const id = DB.ObjectID(postid);
+        let update = {
+            $set:{
+                ["comments.$.reactions." + userid]: reaction,
+                "comments.$.lastUpdated": new Date(),
+                lastUpdated: new Date()
+            }            
+        }
+        console.log(JSON.stringify(update));
+        return DB.postCols.updateOne({
+            _id: id,
+            "comments.createdAt": commentDate
+        }, update).catch((err)=>{
+            console.log(err);
+            return false;
+        });
+    }
+
     DB.getPosts = (userObj) => {
         return DB.postCols.find().toArray().catch((err)=>{
             console.log(err);