Handles removes in the good cases

lib/indexes.js

@@ -125,7 +125,13 @@ Index.prototype.remove = function (doc) {
 
   if (key === undefined && this.sparse) { return; }
 
-  this.tree.delete(key, doc);
+  if (!util.isArray(key)) {
+    this.tree.delete(key, doc);
+  } else {
+    _.uniq(key, projectForUnique).forEach(function (_key) {
+      self.tree.delete(_key, doc);
+    });
+  }
 };
 
 

test/indexes.test.js

@@ -177,6 +177,25 @@ describe('Indexes', function () {
       (function () { idx.insert(obj2); }).should.throw();
 	  });
     
+    it('When removing a document, remove it from the index at all array elements', function () {
+      var obj = { tf: ['aa', 'aa'], really: 'yeah' }
+        , obj2 = { tf: ['cc', 'aa', 'cc'], yes: 'indeed' }
+        , idx = new Index({ fieldName: 'tf' })
+        ;
+      
+      idx.insert(obj);
+      idx.insert(obj2);
+      idx.getMatching('aa').length.should.equal(2);
+      idx.getMatching('aa').indexOf(obj).should.not.equal(-1);
+      idx.getMatching('aa').indexOf(obj2).should.not.equal(-1);
+      idx.getMatching('cc').length.should.equal(1);
+
+      idx.remove(obj2);
+      idx.getMatching('aa').length.should.equal(1);
+      idx.getMatching('aa').indexOf(obj).should.not.equal(-1);
+      idx.getMatching('aa').indexOf(obj2).should.equal(-1);
+      idx.getMatching('cc').length.should.equal(0);      
+    });
 	
 	});   // ==== End of 'Array fields' ==== //