fix: liveQuery with containedIn not working when object field is an array (#8128)

spec/QueryTools.spec.js

@@ -583,6 +583,29 @@ describe('matchesQuery', function () {
     expect(matchesQuery(message, q)).toBe(false);
   });
 
+  it('should support containedIn with array of pointers', () => {
+    const message = {
+      id: new Id('Message', 'O2'),
+      profiles: [pointer('Profile', 'yeahaw'), pointer('Profile', 'yes')],
+    };
+
+    let q = new Parse.Query('Message');
+    q.containedIn('profiles', [
+      Parse.Object.fromJSON({ className: 'Profile', objectId: 'no' }),
+      Parse.Object.fromJSON({ className: 'Profile', objectId: 'yes' }),
+    ]);
+
+    expect(matchesQuery(message, q)).toBe(true);
+
+    q = new Parse.Query('Message');
+    q.containedIn('profiles', [
+      Parse.Object.fromJSON({ className: 'Profile', objectId: 'no' }),
+      Parse.Object.fromJSON({ className: 'Profile', objectId: 'nope' }),
+    ]);
+
+    expect(matchesQuery(message, q)).toBe(false);
+  });
+
   it('should support notContainedIn with pointers', () => {
     let message = {
       id: new Id('Message', 'O1'),

src/LiveQuery/QueryTools.js

@@ -103,8 +103,18 @@ function contains(haystack: Array, needle: any): boolean {
         return true;
       }
     }
+
     return false;
   }
+
+  if (Array.isArray(needle)) {
+    for (const need of needle) {
+      if (contains(haystack, need)) {
+        return true;
+      }
+    }
+  }
+
   return haystack.indexOf(needle) > -1;
 }
 /**