Appfarm Documentation
Getting startedDocumentationCommunityAppfarm Create
  • Overview
  • Getting Started
    • What is Appfarm?
    • Key concepts
    • Quickstart
      • Speed intro
      • Step-by-step guide
    • Appfarm Showroom
    • FAQ
  • Appcademy
    • Learning paths
    • Appfarm Fundamentals
      • Intro Course
        • 1. Intro to No-Code and Appfarm
        • 2. Navigation in Appfarm Create
        • 3. What is Apps?
        • 4. Intro to UI Editor
        • 5. Data Model
        • 6. App Data
        • 7. Actions
        • 8. Tips and Tricks
        • 9. Intro to practical walkthrough
        • 10. Create a details view of a Project
        • 11. Create a Custom List
        • 12. Swipe and Delete
        • 13. Functionality for simple Create of Data
        • 14. Upload and Download Photos
        • 15. Input Dialog with Validation and Save
        • 16. Dashboard
        • 17. Summary
        • Quiz
      • User Interface Fundamentals
        • Container - Sectioning, Styling and Repeating
        • Conditional Styles
        • Motions
        • Responsive Design
        • Step-by-step workflow
        • Featured UI Components
        • Quiz
      • App Data Fundamentals
        • Data Source Filtering
        • App Variables and Runtime Properties
        • URL Parameters
        • Quiz
      • Actions & Logic Fundamentals
        • Event Handlers
        • Featured Action Nodes
        • Context Parameters
        • Quiz
      • Services Fundamentals
        • Introduction to Services
        • Setting up a Service
        • Scheduling a Service
      • Integration Fundamentals
        • The web request action node
        • Fetch data from an endpoint
        • Map data to a data source
        • Modify the response
        • Nested data mapping
        • Path parameters
        • Authentication
        • Send data to an endpoint
        • Quiz
      • User handling and permissions
        • Users and roles
        • Permissions
        • Creating users
        • Extending the User object class
        • Updating and deleting users
        • Unauthenticated access
        • Quiz
    • Appfarm Professional
      • User Interfaces
        • Featured UI Components
        • Concepts and Use Cases
      • Data Structures & Data Handling
        • Data Features
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        • Featured Action Nodes
        • GraphQL
      • Logic & Flow
        • Logical Concepts
        • Date and Time Handling
        • Featured Action Nodes
        • Exception Handling
      • Login & Configuration
        • Login and Authentication
        • Settings, Configuration and Languages
      • Security & Operations
        • Security and Permissions
        • Deployment
        • Schedules and Logs
        • Debugging and App Health
      • Performance & Optimization
        • Optimizing Performance
        • Enhancing Functionality
    • Appfarm Sales Representative
    • Appfarm Developer Forum
      • Session 1: Data Modeling in Appfarm Create
      • Session 2: App Data in Appfarm Create
      • Session 3: Services in Appfarm Create
      • Session 4: Optimizing Performance
    • Background
      • Databases
        • Data modeling 101
        • Database normalization
  • Library
    • UI components
      • Advanced bar chart
      • Advanced bubble chart
      • Advanced combined chart
      • Advanced gantt chart
      • Advanced heatmap chart
      • Advanced line/area chart
      • Advanced pie chart
      • Advanced scatter plot chart
      • Advanced solid gauge chart
      • Animated component
      • Avatar
      • Avatar group
      • Basic bar chart
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      • Basic line chart
      • Basic pie chart
      • Bottom navigation
      • Button
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      • Chip group
      • Circular progress
      • Coded component
      • Container
      • Date & time picker
      • Drawable canvas
      • Floating action button
      • Icon
      • Icon button
      • Iframe
      • Image
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      • List
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      • Menu list
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      • PDF reader
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      • Rich text editor
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      • View container
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    • Action nodes
      • Aggregate data
      • Advanced search
      • Auth operations
      • Block
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      • Copy to clipboard
      • Create file archive
      • Create file object
      • Create object
      • Create user account
      • Delete objects
      • Delete user account
      • Duplicate objects
      • End execution
      • Exit block
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      • Export data
      • Foreach
      • Generate document
      • If
      • Import data
      • Invalidate cache
      • Log in
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      • Next iteration
      • Navigate
      • Open/close popover
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      • Open print dialog
      • Open snackbar
      • Open Unsplash dialog
      • Open URL
      • Persist objects
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      • Request permissions
      • Run code
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      • Run service
      • Scan barcode/QR code
      • Send email
      • Send SMS
      • Set client language
      • Set data source attributes
      • Set selection
      • Set theme
      • Set user account image
      • Show install app prompt
      • Sleep
      • Sort objects
      • Throw exception
      • Toggle drawer
      • Update object
      • Update secret
      • Update user account
      • Web request
      • While
  • Reference
    • Appfarm Create
      • Appfarm Commander
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      • Farmer's Market
      • Find references
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    • Platform concepts
      • Conditions
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      • Operators
      • Value processor
    • Dashboard
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      • Data
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      • Actions
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    • Services
      • Service Endpoints
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      • API explorer
    • Data model
      • Object classes
      • Object class properties
      • Enumerated types
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      • Users
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      • Roles
      • Secrets
      • Permissions
        • Conditional Permissions
    • Appfarm Client
      • Developer tools for Apps
      • Developer tools for Services
      • Warnings and errors
  • How to
    • Data modeling
      • Many-to-many relationships
      • Use naming conventions
      • Offline data handling
      • Data silos and White labelling
    • User interface
      • Manage a many-to-many relationship with a Chip group
      • Configure drag and drop
      • Build a drag-and-drop calendar
      • Design a responsive layout
      • Work with flexbox
      • Use Mapbox as a map layer
      • Understand charts
    • Logic and flow
      • Event Log Design
      • Configure advanced search
    • Themes and styling
      • Change the active theme
      • Add custom email templates
    • Enhance your app
      • Add deep links
      • Add keyboard shortcuts
      • Add link previews for social media
      • Apply SEO best practices
      • Change the active language
      • Generate a PDF from a Container
    • Integrations
      • Integrate with external systems
      • Integrate with OpenAI
      • Integrate with Google Analytics (GA4)
      • Configure a custom email account
      • Integrate with a payment provider
      • Integrate with Signicat
      • Integrate directly with an external database
      • Retrieve a Bearer token from Google Cloud
      • Fetch data from BigQuery
      • Retrieve access token from Microsoft Entra ID
    • Workflow automation
      • Update an OAuth 2.0 access token from a service
    • Authentication and access control
      • Add users and assign roles
      • Configure unauthenticated access
      • Implement third-party authentication
    • Security, testing and deployment
      • Add a custom domain
      • Install an app on a device
      • Get ready for Production
      • Optimize performance
      • Security checklist
      • Test and debug
    • Example apps
      • Create an Instagram clone
        • The end result
        • Designing the feed
        • Create new post
        • Add a like-button
        • Add comment-functionality
  • Solution administration
    • Subscription and billing
    • Dedicated tier benefits
    • Guide to GDPR
      • Key principles
      • How Appfarm protects personal data
      • How you can protect your clients’ data
      • Glossary
    • Appfarm and the EU AI Act
  • Policies
    • Appfarm Policies
    • Data Processors
    • Privacy Policy
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On this page
  • Usage
  • Operations
  • Boolean
  • Datetime
  • Float and Integer
  • Multi-reference property
  • Rich Text property

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  1. Reference
  2. Platform concepts

Value processor

The value processor is a tool for simple data manipulation and formatting operations that are run client-side.

Common use cases include:

  • Toggling boolean values

  • Incrementing integers such as a counter in a loop

  • Shifting dates to find the beginning of the month or year for a date

  • Formatting dates and numbers based on the end-user's locale settings

  • Adding or removing references in a multi-reference property

  • Format a Rich Text property to Plain Text or Markdown

Usage

You can open the value processor from two places:

  • From the three-dots menu after setting a value for a property.

  • In the data binding dialog.

Once the value processor has been applied to a value, an icon will be shown next to the value. You can click this icon to open the value processor and view the operations in place.

Operations

The operations that are available depend on the data type of the value. Operations can be chained, for example to first add a value and then to format it. The operations are evaluated in the same order they are added.

Boolean

  • Invert Boolean to toggle a boolean value.

Example

Say you have a detailed view of an Employee. The view is usually read only but the employee can click a button to make it editable. You keep track of which state the view has by using a boolean property in App Variables, called Employee edit enabled.

Then you can create an action for the edit button with an Update Object action node for App Variables. For the Employee edit enabled property, select the existing Employee edit enabled value, and use the value processor to add an invert boolean operation. Note: inverting a boolean variable that has no value or is Null will return True

Datetime

  • Add a fixed number of datetime units to the value.

  • Subtract a fixed number of datetime units from the value.

  • Start of to shift the value to the start of a datetime unit.

  • End of to shift the value to the end of a datetime unit.

  • Format the value in a pre-defined or custom format.

Example

In an app, you often need to consider data in a given period relative to today's date. Say you want to view Assignments that started within the last 3 months or that are starting in the next 3 months.

You can add two Datetime properties to App Variables, Three months ago and Three months ahead. Set both variables to the built-in value Date Today.

For Three months ago use the value processor to subtract 3 months and shift to the start of the day, while for Three months ahead use add three months and shift to the end of the day. Now you can use these two variables to filter the data source holding the Assignments.

Float and Integer

  • Add a fixed or data-bound number to the value.

  • Subtract a fixed or data-bound number from the value.

  • Format the integer or float as a string. You can e.g. specify the number of decimal places, hide the thousand-separator, or format the number as currency or percentage.

A general warning when using Value Processor to format a number or datetime to "built-in" types. E.g. formatting a datetime to Short date or a number to Currency (NOK): The output of these default may change over time, as they are controlled by third-parties or browsers. E.g. when Appfarm Create upgraded the server-side node.js library from version 18 to 20, the output for the built-in value processorCurrency (NOK) changed from "kr 20" to "20 kr". Do not build business logic that is hardcoded to these outputs (e.g. do not extract the "20" from the above string by using substring(3,5))

Multi-reference property

  • Add references to an existing list of references

  • Remove reference from an existing list of references

Example

Rich Text property

  • Format a Rich Text property to Plain Text or Markdown

Example

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Last updated 7 months ago

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Detailed information about these operations is available under .

Please see the value processor example in the article.

Please see the in the Text component article.

Date and time
Update Object
Rich Text section