BIG REFACTORING using composer create-project drupal-composer/drupal-project

config/sync/field.field.node.materiau.field_index.yml

@@ -0,0 +1,26 @@
+uuid: b397d3d5-4404-436d-9845-aec9226aca45
+langcode: en
+status: true
+dependencies:
+  config:
+    - field.storage.node.field_index
+    - node.type.materiau
+  module:
+    - computed_field
+id: node.materiau.field_index
+field_name: field_index
+entity_type: node
+bundle: materiau
+label: Index
+description: ''
+required: false
+translatable: false
+default_value:
+  -
+    value: 0
+default_value_callback: ''
+settings:
+  code: '$value = 0;'
+  prefix: ''
+  suffix: ''
+field_type: computed_integer