Module Description
API for developers that allows reacting on changed fields in a node (any entity since 8.x-3.x) when the node has been updated. It includes two demo modules: changed_fields_basic_usage and changed_fields_extended_field_comparator.
Use cases
* You use services and services_client modules to deploy nodes on different sites and you want to avoid false positive requests (when node saved but nothing changed inside the node)
* You want to modify node object depends on changed fields values.
* You want to know which fields have been changed before node would be saved
* Some other useful things
Supported field types for Drupal 8/9/10 All core's field types Usage for Drupal 8/9/10 Please consider this Changed Fields API Drupal 8 usage guide.
What's new in 8.x-3.x?
* Drupal 10 compatible (since 8.x-3.5 release)
* Drupal 9 compatible (since 8.x-3.4 release)
* Any Drupal 8/9/10 entity support!
* Class NodeSubject is replaced by more generic EntitySubject class.
Please see detailed description here.
Supported field types for Drupal 7 All core's field types Additional field types:
* date (date module)
* datestamp (date module)
* datetime (date module)
* phone (phone module)
* email (email module)
* link_field (link module)
* entityreference (entityreference module)
* field_collection (field_collection module)
Usage for Drupal 7 Please consider this Changed Fields API Drupal 7 usage guide.
Difference between 7.x-2.x and 7.x-3.x branches
* Branches are not compatible.
* 7.x-3.x is built on spl interfaces instead of custom ones.
* In 7.x-3.x you can define different observers with different observable bundles and its fields. In 7.x-2.x all the attached observers could observe only that bundles and its fields that were defined in subject object.
If you already use 7.x-2.x and you don't need new feature then you can stay on this version. If you haven't used this module yet but want to use it then install 7.x-3.x version.
Please see detailed description here.
Use cases
* You use services and services_client modules to deploy nodes on different sites and you want to avoid false positive requests (when node saved but nothing changed inside the node)
* You want to modify node object depends on changed fields values.
* You want to know which fields have been changed before node would be saved
* Some other useful things
Supported field types for Drupal 8/9/10 All core's field types Usage for Drupal 8/9/10 Please consider this Changed Fields API Drupal 8 usage guide.
What's new in 8.x-3.x?
* Drupal 10 compatible (since 8.x-3.5 release)
* Drupal 9 compatible (since 8.x-3.4 release)
* Any Drupal 8/9/10 entity support!
* Class NodeSubject is replaced by more generic EntitySubject class.
Please see detailed description here.
Supported field types for Drupal 7 All core's field types Additional field types:
* date (date module)
* datestamp (date module)
* datetime (date module)
* phone (phone module)
* email (email module)
* link_field (link module)
* entityreference (entityreference module)
* field_collection (field_collection module)
Usage for Drupal 7 Please consider this Changed Fields API Drupal 7 usage guide.
Difference between 7.x-2.x and 7.x-3.x branches
* Branches are not compatible.
* 7.x-3.x is built on spl interfaces instead of custom ones.
* In 7.x-3.x you can define different observers with different observable bundles and its fields. In 7.x-2.x all the attached observers could observe only that bundles and its fields that were defined in subject object.
If you already use 7.x-2.x and you don't need new feature then you can stay on this version. If you haven't used this module yet but want to use it then install 7.x-3.x version.
Please see detailed description here.
Module Link
Project Usage
398
Security Covered
Covered By Security Advisory
Version Available
Production
Module Summary
This module aims to solve the issue of reacting to changed fields in a node when the node is updated, with support for Drupal 7, 8, 9, and 10 entities.
Data Name
changed_fields
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