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Description

Field Visibility Condition extends Backdrop CMS block visibility conditions to show or hide blocks and layouts based on entity field values.

This makes it possible to show or hide a block or even a layout based on the value of a particular field. For example, you could show a sidebar block only on posts where a "Featured" checkbox is checked.

Important: This module requires that the layout has an entity context available. It will only work on layouts bound to a specific path (e.g. node/%), not on the Default layout.

Condition Types

Three condition types are available:

  • Is equal to - Show/hide when a field matches a specific value.
  • Is not empty (NOT NULL) - Show/hide when a field has any value.
  • Is empty (NULL) - Show/hide when a field has no value.

Each condition type also supports a Reverse (NOT) option to negate the check.

Note: For boolean fields, a value of "No" is treated as empty by Backdrop core. Use "Is equal to" to reliably match a specific boolean value.

How to Install

Install this module using the official Backdrop CMS instructions at https://backdropcms.org/guide/modules

Usage

This module adds a new visibility condition called "Field value" which provides access to entity field values.

Blocks

  1. Navigate to your layout of choice (must be bound to a path like node/%).
  2. On the "Manage Blocks" tab, find the block you want to show or hide and click "Configure".
  3. Open the "Visibility conditions" section.
  4. Click "+ Add condition".
  5. Choose "Field value" from the dropdown.
  6. Select the field you want to evaluate.
  7. Choose a condition type and configure the value if needed.
  8. Optionally check "Reverse (NOT)" to negate the condition.
  9. Click "Add Condition".
  10. Click "Update Block", then "Save Layout".

Layouts

  1. Navigate to your layout of choice and click the "Configure Layout" tab.
  2. Scroll down to "Visibility conditions".
  3. Click "+ Add visibility condition".
  4. Choose "Field value" from the dropdown.
  5. Select the field and configure the condition as described above.
  6. Click "Add Visibility Condition", then "Save Layout".

License

This project is GPL v2 software. See the LICENSE.txt file in this directory for complete text.

Current Maintainers

Credits

Originally developed for Backdrop by @docwilmot