Fixes issue affecting liveQuery on location null/undefined values (#4171)

spec/QueryTools.spec.js

@@ -360,7 +360,16 @@ describe('matchesQuery', function() {
       id: new Id('Checkin', 'C1'),
       location: new Parse.GeoPoint(40, 40)
     };
+    var ptUndefined = {
+      id: new Id('Checkin', 'C1')
+    };
+    var ptNull = {
+      id: new Id('Checkin', 'C1'),
+      location: null
+    };
     expect(matchesQuery(pt, q)).toBe(true);
+    expect(matchesQuery(ptUndefined, q)).toBe(false);
+    expect(matchesQuery(ptNull, q)).toBe(false);
 
     q = new Parse.Query('Checkin');
     pt.location = new Parse.GeoPoint(40, 40);
@@ -384,6 +393,17 @@ describe('matchesQuery', function() {
       name: 'Santa Clara'
     };
 
+    var noLocation = {
+      id: new Id('Checkin', 'C2'),
+      name: 'Santa Clara'
+    };
+
+    var nullLocation = {
+      id: new Id('Checkin', 'C2'),
+      location: null,
+      name: 'Santa Clara'
+    };
+
     var q = new Parse.Query('Checkin').withinGeoBox(
       'location',
       new Parse.GeoPoint(37.708813, -122.526398),
@@ -392,7 +412,8 @@ describe('matchesQuery', function() {
 
     expect(matchesQuery(caltrainStation, q)).toBe(true);
     expect(matchesQuery(santaClara, q)).toBe(false);
-
+    expect(matchesQuery(noLocation, q)).toBe(false);
+    expect(matchesQuery(nullLocation, q)).toBe(false);
     // Invalid rectangles
     q = new Parse.Query('Checkin').withinGeoBox(
       'location',

src/LiveQuery/QueryTools.js

@@ -262,10 +262,16 @@ function matchesKeyConstraints(object, key, constraints) {
       }
       break;
     case '$nearSphere':
+      if (!compareTo || !object[key]) {
+        return false;
+      }
       var distance = compareTo.radiansTo(object[key]);
       var max = constraints.$maxDistance || Infinity;
       return distance <= max;
     case '$within':
+      if (!compareTo || !object[key]) {
+        return false;
+      }
       var southWest = compareTo.$box[0];
       var northEast = compareTo.$box[1];
       if (southWest.latitude > northEast.latitude ||