How Knack Works
Design Your Database
Manage Your Records
Build Your Live Application
View and Share Your App
Do More With Knack
Connect Related Data
Users & Access
Calculations & Logic
Emails & Notifications
Search & Queries
Reporting & Dashboards
E-Commerce & Payments
Tables & Connections
Plan Your Connections: Complex Example
Working With Tables
Plan Your Connections: Simple Example
Plan Your Tables
Use Connections in Your App
Connecting Records Together
Connections: Troubleshooting & FAQs
Numeric Equation Functions
Date Equation Settings
Numeric Equation Settings
Text Formula Functions
CSV Format Guide for Importing
Working with Records
Deleting a Page That's Being Linked to
Working with Pages
Navigating the Page Preview
Printing Pages & PDFs
Grid Column Settings
Source: Which Records Will the View Display
Using Action Links
Combining Fields from Connected Records in Views
Using Record Rules
Using Display Rules
Using Submit Rules
Users & Logins
Users and the Page Menu
Manage Roles & Permissions
Single Sign-On with Google, Facebook, Twitter, and Custom
Manage User Records
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Live App Security Settings: HIPAA Plans
Live App Security Settings
Tasks & Emails
How do I cancel my Knack account?
I'm over the storage limit for my account. How do I add more storage or get under the limit?
Need account access or to transfer account access because account owner or colleague left the company
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How do I show multiple dates on a calendar?
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How do I find the most recent date from a connected table?
How do I create a field that always shows today's date?
Can I share or connect data between apps?
How do I create an "If, Then" or conditional equation?
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The menu isn't showing for my app on mobile devices. How do I fix that?
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How do I move or copy fields or data from one table to another?
How can I show a customer's payment history if I'm collecting payments through my Knack app and through cash or check?
Is there a way to add a display rule to multiple columns at one time instead of having to update each column individually?
Do I need a separate user role table for my Vendors, Customers, Employees, Contacts, etc.?
How can I set up my app so users see only their own data?
Can I combine two date fields into a single date field? For example, combining a start and end date into a single field?
Does Knack offer a service for building apps or have developers I can hire?
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Storing sensitive data (credit cards, social security numbers, etc.)
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Can my users import data from the live app, instead of going through the builder/back-end?
I am importing data for the first time. How do I do that?
Can I import data into more than one table at the same time?
How To Guides
Add Functionality to Your Live App
How To Create Discount Codes
Create an Add To Favorites Feature
How to Access Private Records Without a Login
Accept Payments in a Live App
Manage Your Records
Use an Edit Form to Create Records If They Don't Exist
Track Which User Last Updated a Record
Copy a Record Using Record Rules
Track When Records are Created and Updated
Create a Version History for Records
Use Zapier to Insert Connected Records
Work with Connected Records
How to Show Multiple Fields in Your Connection Drop-Down
Showing Parent-Child Records in the Live App
How to Create Dynamic Dropdowns in Forms
Add Read-Only Fields to a Form
How to Change the Layout of Forms
Create a Multi-Part Form
How to Allow Users to Add New Options in Forms
How to Add Instructions to a Form
How to Customize the Text on a Submit Button
How to Automatically Capture a User’s Location on a Form
How to Use URL Variables to Pre-Populate a Form
How to Add a Map to a Details View
How to Add Connection Links to Views
How to Add Inline Editing to a Grid
Create a Print-Friendly Invoice Page
How to Click on an Image to Go to Another Page
How to Add Groupings to a Grid
Users & Logins
Force Users to Reset Their Passwords
Save a User's Payment Method
Create a Single Login Page for Multiple User Roles
Add Read-Only Access For Users
Show Records Connected To The Logged-in User's Company Or Other Group
Show Records Connected to the Logged-in User
Create an Admin User Role to View All Records
Workflow & Automations
Add a Pipeline to Your App
Create a Registration Form with Limited Availability
Add Stages to Your App
Store Multiple Images or Files for Individual Records
Use Multiple Image Sources for a Single Image Field
Create a Button or Link that Updates a Field to a Custom Value
Notify a User That an Item is Ready for Review
Add Assignments to Your App
Approve New Records Before Displaying Them
Add Notification & Reminder Emails to Your App
Add Status Indicators to Your App
Logic, Equations & Formulas
Start an Auto Increment Field from Any Number
Display a Message When a Deadline is Approaching
Generate Simple Numeric Barcodes Automatically
How to Set a Random ID
Calculate Age in Years from a Birthday
How To Number Line Items
Show Upcoming Birthdays
How to Extract the Start and End Dates from a Date/Time Field
How to Display Multiple Date Formats Using a Single Date Field
Reports, Queries, and Summaries
Build an Inventory Manager App
Build a Quiz App
Build a Warehouse Manager App
Build a Member Directory
Build an Orders App
Build a Map Directory or Store Locator App
Images & Files
Manage Your Account
Manage Your Account
About Knack Accounts
Account Plans and Billing
Managing Your Apps
Managing Your Account Settings
Sharing Apps With Shared Builders
App Settings: Map Provider
Script Attack Protection: Whitelisted Custom Code Elements and Attributes
Script Attack Protection: Protected Areas
Security & Infrastructure
Security Best Practices
Builder Security Settings for All Knack Plans
Builder Two-Factor Authentication
Table of Contents
- All Categories
- How To Guides
- Manage Your Records
- Track When Records are Created and Updated
Track When Records are Created and Updated
Updated by Lesley
Your app has forms for creating and updating records, and you want to track when records are created and updated.
Add a Date/Time Field to Store When the Record Was Created
In the Data section of the builder, select the table where you want to track when a record was created or updated. In this example, we've chosen the Events table.
Add a new "Date/Time" field using the field menu; we’ll call this “Date Created”:
When setting up your Date/Time field, notice this Date/Time field has a Default Date of "Current Date":
The default value is used in two ways:
- Any form inputs will default to this value for forms that are adding new records.
- When a new record is created, this default value will be used if a value is not provided.
This means that when a new record is created, the value for this field will default to the current date. This only works if you don't include this field as an input in your forms. Since the default only works for new records, this value will always store the date the record was created.
If you also want to track the time, select a time format, then select "Current Time" as the default time option.
Add a Second Date/Time Field to Store When the Record Was Last Updated
Repeat the process, by adding a second field called "Last Updated", also selecting the Date/Time field type and settings like above:
Add a Record Rule to Set the Last Updated Value From Your Form
Thanks to the default values, the "Date Created" field will always be set on its own whenever a new record is added. Since the default is only applied on creation, however, we need to add a record rule in any form that allows a record to be edited.
In the Pages section of your builder, select any page that contains a form used to "edit" your record.
Edit the form by clicking on it from the page view, then access the "Form Rules" via the lefthand panel.
Find the “Record Rules” tab at the top and add a new rule by clicking the “Add Rule” button. For every form submission, this rule is going to update this record and set the value of Last Updated Date to the current date.
The record rule should have the following properties:
- Action: Update this record
- When: Every form submission (no need to add any criteria for this scenario)
- Values: Set "Last Updated" to the current date (this will also apply the current time, if enabled)
This rule will update the "Last Updated" value to the current date every time the form is submitted. Therefore, it will always store the last date the record was updated.
Notes & Troubleshooting
Make sure to repeat these steps and add record rules to any other "edit" forms where you want to track the date these records are updated.
This capability only applies to forms and is currently not available for changes made via inline editing on a grid.