Add createdAt and modifiedAt to all collections

models/invitationCodes.js

@@ -1,45 +1,78 @@
 InvitationCodes = new Mongo.Collection('invitation_codes');
 
-InvitationCodes.attachSchema(new SimpleSchema({
-  code: {
-    type: String,
-  },
-  email: {
-    type: String,
-    unique: true,
-    regEx: SimpleSchema.RegEx.Email,
-  },
-  createdAt: {
-    type: Date,
-    denyUpdate: false,
-  },
-  // always be the admin if only one admin
-  authorId: {
-    type: String,
-  },
-  boardsToBeInvited: {
-    type: [String],
-    optional: true,
-  },
-  valid: {
-    type: Boolean,
-    defaultValue: true,
-  },
-}));
+InvitationCodes.attachSchema(
+  new SimpleSchema({
+    code: {
+      type: String,
+    },
+    email: {
+      type: String,
+      unique: true,
+      regEx: SimpleSchema.RegEx.Email,
+    },
+    createdAt: {
+      type: Date,
+      denyUpdate: false,
+      optional: true,
+      // eslint-disable-next-line consistent-return
+      autoValue() {
+        if (this.isInsert) {
+          return new Date();
+        } else {
+          this.unset();
+        }
+      },
+    },
+    modifiedAt: {
+      type: Date,
+      denyUpdate: false,
+      // eslint-disable-next-line consistent-return
+      autoValue() {
+        if (this.isInsert || this.isUpsert || this.isUpdate) {
+          return new Date();
+        } else {
+          this.unset();
+        }
+      },
+    },
+    // always be the admin if only one admin
+    authorId: {
+      type: String,
+    },
+    boardsToBeInvited: {
+      type: [String],
+      optional: true,
+    },
+    valid: {
+      type: Boolean,
+      defaultValue: true,
+    },
+  })
+);
 
 InvitationCodes.helpers({
-  author(){
+  author() {
     return Users.findOne(this.authorId);
   },
 });
 
+InvitationCodes.before.update((userId, doc, fieldNames, modifier, options) => {
+  modifier.$set = modifier.$set || {};
+  modifier.$set.modifiedAt = Date.now();
+});
+
 // InvitationCodes.before.insert((userId, doc) => {
 // doc.createdAt = new Date();
 // doc.authorId = userId;
 // });
 
 if (Meteor.isServer) {
+  Meteor.startup(() => {
+    InvitationCodes._collection._ensureIndex({ modifiedAt: -1 });
+  });
   Boards.deny({
     fetch: ['members'],
   });
 }
+
+export default InvitationCodes;