From 81088a913a12b37f59bf846afbe43756e52ed352 Mon Sep 17 00:00:00 2001
From: Xaratas <nomikon@protonmail.com>
Date: Tue, 7 Apr 2026 14:26:11 +0200
Subject: [PATCH] Add data.yaml.twig handler

---
 CHANGELOG.md                           |  5 +++++
 templates/forms/data.yaml.twig         |  1 +
 templates/forms/default/data.yaml.twig | 23 +++++++++++++++++++++++
 3 files changed, 29 insertions(+)
 create mode 100644 templates/forms/data.yaml.twig
 create mode 100644 templates/forms/default/data.yaml.twig

diff --git a/CHANGELOG.md b/CHANGELOG.md
index 3734a66..8420e99 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,3 +1,8 @@
+# v8.x.x
+## __/__/____
+1. [](#improved)
+    - Add `data.yaml.twig` handler for the form save action to write the data as valid yaml
+
 # v8.2.1
 ## 12/28/2025
 
diff --git a/templates/forms/data.yaml.twig b/templates/forms/data.yaml.twig
new file mode 100644
index 0000000..4f62ee8
--- /dev/null
+++ b/templates/forms/data.yaml.twig
@@ -0,0 +1 @@
+{% extends "forms/default/data.yaml.twig" %}
diff --git a/templates/forms/default/data.yaml.twig b/templates/forms/default/data.yaml.twig
new file mode 100644
index 0000000..6df8612
--- /dev/null
+++ b/templates/forms/default/data.yaml.twig
@@ -0,0 +1,23 @@
+{%- macro render_field(form, fields, scope) %}
+{%- import _self as self %}
+{%- autoescape false %}
+{%- for index, field in fields %}
+    {%- set show_field = attribute(field, "input@") ?? field.store ?? true %}
+    {%- if field.fields %}
+        {%- set new_scope = field.nest_id ? scope ~ field.name ~ '.' : scope -%}
+        {{- self.render_field(form, field.fields, new_scope) }}
+    {%- else %}
+        {%- if show_field %}
+            {%- set value = form.value(scope ~ (field.name ?? index)) -%}
+            {%- if value -%}
+            {{- (field.data_label ? field.data_label|t|e : field.label|t|e)|yaml_encode }}: {{ string(value is iterable ? value|json_encode : value)|yaml_encode ~ "\n" }}
+            {%- endif -%}
+        {%- endif %}
+    {%- endif %}
+{%- endfor %}
+{%- endautoescape %}
+{%- endmacro %}
+{%- import _self as macro %}
+{%- autoescape false %}
+{{- macro.render_field(form, form.fields, '') ~ "\n" }}
+{%- endautoescape %}
\ No newline at end of file