Manage Your Records
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Design Your Database
Do More With Knack
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Reporting & Dashboards
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Search & Queries
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Calculations & Logic
Users & Access
Working with Pages
Deleting a Page That's Being Linked to
Printing Pages & PDFs
Objects & Connections
Plan Your Objects
Plan Your Connections: Complex Example
Plan Your Connections: Simple Example
Connecting Records Together
Use Connections in Your App
Working With Objects
Connections: Troubleshooting & FAQs
Live App Design
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Integrate with Formstack Documents
Integrate with Zapier
Integrate with Integromat
Working with Icons
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Using Action Links
Using Record Rules
Table Column Settings
Combining Fields from Connected Records in Views
Source: Which Records Will the View Display
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CSV Format Guide for Importing
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Live App Security Settings: HIPAA Plans
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Working With Support
What is a dedicated support manager?
Is there an option to pay via invoice, check, wire transfer, or something other than a credit card?
Where can I find a copy of my receipt or invoice?
I'm over the storage limit for my account. How do I add more storage or get under the limit?
I'm over the record limit for my account. How do I add more records or get under the limit?
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Need account access or to transfer account access because account owner or colleague left the company
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How do I remove the "Powered by Knack" logo at the bottom of my app?
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How do I backup or export my apps and data?
How do I white label my app?
How do I copy an app from my account to another account?
How can I track what users are doing in my app?
How do I find the most recent date from a connected object?
How do I move or copy fields or data from one object to another?
How do I add a logo to my app?
How can I change the color of something in my app?
The menu isn't showing for my app on mobile devices. How do I fix that?
How do I create a field that always shows today's date?
How do I show multiple dates on a calendar?
Is there a way to add a display rule to multiple columns at one time instead of having to update each column individually?
How can I show a customer's payment history if I'm collecting payments through my Knack app and through cash or check?
Can I combine two date fields into a single date field? For example, combining a start and end date into a single field?
Is it possible to display more than 100 records at a time on a table, list, or search view?
Is there a way to have new users be automatically logged-in after they register?
Do I need a separate user role object for my Vendors, Customers, Employees, Contacts, etc?
How do I create an "If, Then" or conditional equation?
Does Knack offer a service for building apps or have developers I can hire?
How can I set up my app so users see only their own data?
How do I bulk upload or import multiple images?
How do I bulk upload or import multiple files?
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Storing sensitive data (credit cards, social security numbers, etc.)
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Some of my fields aren't importing correctly. How can I fix that?
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How To Guides
Users & Logins
Save a User's Payment Method
Force Users to Reset Their Passwords
Create a Single Login Page for Multiple User Roles
Show Records Connected To The Logged-in User's Company Or Other Group
Create an Admin User Role to View All Records
Add Read-Only Access For Users
Show Records Connected to the Logged-in User
Add Functionality to Your Live App
Manage Your Records
Use an Edit Form to Create Records If They Don't Exist
Use Zapier to Insert Connected Records
Copy a Record Using Record Rules
Create a Version History for Records
Track When Records are Created and Updated
Track Which User Last Updated a Record
Workflow & Automations
Add Stages to Your App
Add Status Indicators to Your App
Add Assignments to Your App
Notify a User That an Item is Ready for Review
Create a Registration Form with Limited Availability
Add a Pipeline to Your App
Create a Button or Link that Updates a Field to a Custom Value
Add Notification & Reminder Emails to Your App
Approve New Records Before Displaying Them
Store Multiple Images or Files for Individual Records
Use Multiple Image Sources for a Single Image Field
Work with Connected Records
How to Show Multiple Fields in Your Connection Drop-Down
Showing Parent-Child Records in the Live App
Logic, Equations & Formulas
How to Display Multiple Date Formats Using a Single Date Field
How To Number Line Items
Show Upcoming Birthdays
How to Set a Random ID
Display a Message When a Deadline is Approaching
Generate Simple Numeric Barcodes Automatically
Calculate Age in Years from a Birthday
How to Extract the Start and End Dates from a Date Field
Start an Auto Increment Field from Any Number
How to Add Inline Editing to a Table
Create a Print-Friendly Invoice Page
How to Click on an Image to Go to Another Page
How to Add Connection Links to Views
How to Add a Map to a Details View
How to Add Groupings to a Table
Reports, Queries, and Summaries
Build a Quiz App
Build an Inventory Manager App
Build an Orders App
Build a Warehouse Manager App
Build a Member Directory
Build a Map Directory or Store Locator App
Create a Multi-Part Form
How to Change the Layout of Forms
How to Add Instructions to a Form
How to Customize the Text on a Submit Button
How to Limit an Uploaded File’s Size
How to Automatically Capture a User’s Location on a Form
How to Allow Users to Add New Options in Forms
How to Use URL Variables to Pre-Populate a Form
Add Read-Only Fields to a Form
How to Create Dynamic Dropdowns in Forms
Manage Your Account
Security & Infrastructure
Builder Two-Factor Authentication
Builder Security Settings for All Knack Plans
Security Best Practices
Manage Your Account
Table of Contents
Updated by Sarto Jama
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 Schema section of the builder, select the object where you want to track when a record was created or updated. In this example, we've chosen the Events object.
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 always storing 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 table.