LT-275: Creating measure flow component common section

Packages/ohif-core/server/mongo.js

@@ -0,0 +1,26 @@
+import { OHIF } from 'meteor/ohif:core';
+import { Meteor } from 'meteor/meteor';
+
+// Mongo data manipulation utilities
+class MongoUtils {
+
+    // Check if there is an user logged in
+    static validateUser() {
+        // Throw error if there is no user logged in
+        if (!Meteor.userId()) {
+            throw new Meteor.Error('not-authorized');
+        }
+    }
+
+    // Generic callback to MongoDB write operations
+    static writeCallback(error, affected) {
+        // Throw error if it was not possible to complete the write operation
+        if (error) {
+            throw new Meteor.Error('data-write', error);
+        }
+    }
+
+}
+
+// Expose the class in the OHIF object
+OHIF.MongoUtils = MongoUtils;