calculated_entity_field.md

title: ECA Library - Calculated entity field
version: v1
tags:
- bpmn
- library
- simple
- entity fields
- math
- tamper
- calculated field

Calculated entity field

Version v1

{!include/library/viewer.html!}

Instead of downloading the archive, you can download and apply this model as a recipe (Drupal 10.3 or later):

composer require drupal-eca-recipe/calculated_entity_field
cd web && php core/scripts/drupal recipe ../vendor/drupal-eca-recipe/calculated_entity_field

Purpose

This model calculates a field value and stores it with a node, each time that node gets either created or updated. This shows in a simple example, how the contrib module "Calculated Field" can be replaced with ECA models.

The creation of this module was recorded with lots of additional explanations and can be watched here.

Dependencies

• config
  • field.field.node.carpet.field_area
  • field.field.node.carpet.field_length
  • field.field.node.carpet.field_width
  • field.storage.node.field_area
  • field.storage.node.field_length
  • field.storage.node.field_width
  • node.type.carpet
• module
  • eca_content
  • eca_tamper
  • menu_ui
  • node

Used plugins

Events

• Presave content entity (Content: Carpet)

Actions

• Calculate area
• Store area value

Changelog

v1

Initial version.