Merge pull request #221 from salmanhasni/salman-220-fixing-map-ds

fixes #220

Author: StorytellerCZ

lib/client/ground.db.js

@@ -154,8 +154,8 @@ Ground.Collection = class GroundCollection {
                   Kernel.defer(() => {
 
                     // Add the document to minimongo
-                    if (!this._collection._docs._map[id]) {
-                      this._collection._docs._map[id] = EJSON.fromJSONValue(doc);
+                    if (!this._collection._docs._map.has(id)) {
+                      this._collection._docs._map.set([id], EJSON.fromJSONValue(doc));
 
                       // Invalidate the observers pr. document
                       // this call is throttled
@@ -221,9 +221,9 @@ Ground.Collection = class GroundCollection {
   setDocument(doc, remove) {
     doc._id = strId(doc._id);
     if (remove) {
-      delete this._collection._docs._map[doc._id];
+      this._collection._docs._map.remove(doc._id);
     } else {
-      this._collection._docs._map[doc._id] = EJSON.clone(doc);
+      this._collection._docs._map.set(doc._id, EJSON.clone(doc));
     }
     this.invalidate();
   }
@@ -328,7 +328,7 @@ Ground.Collection = class GroundCollection {
 
   clear() {
     this.storage.clear();
-    this._collection._docs._map = {};
+    this._collection._docs._map.clear()
     this.invalidate();
   }
 
@@ -339,14 +339,15 @@ Ground.Collection = class GroundCollection {
   keep(cursors) {
     const arrayOfCursors = (Array.isArray(cursors)) ? cursors : [cursors];
     // Map the ground db storage into an array of id's
-    const currentIds = Object.keys(this._collection._docs._map);
+    let currentIds = this._collection._docs._map.keys()
+    currentIds = Array.from(currentIds);
     // Map each cursor id's into one flat array
     const keepIds = arrayOfCursors.map((cursor) => cursor.map((doc) => strId(doc._id))).flat();
     // Remove all other documents from the collection
     const arrays = [currentIds, keepIds];
     for (const id of arrays.reduce((a, b) => a.filter((c) => !b.includes(c)))) {
       // Remove it from in memory
-      delete this._collection._docs._map[id];
+      this._collection._docs._map.delete(id)
       // Remove it from storage
       this.saveDocument({ _id: id }, true);
     }
@@ -355,7 +356,7 @@ Ground.Collection = class GroundCollection {
   }
 
   toJSON() {
-    return JSON.stringify(this._collection._docs._map);
+    return JSON.stringify(Object.fromEntries(this._collection._docs._map.entries()))
   }
 
   // Simulate the Event Emitter Api "once"