From b1e38cccc4f4c54264563ac4371b623d614a44d0 Mon Sep 17 00:00:00 2001
From: Benjamin Dauvergne <bdauvergne@entrouvert.com>
Date: Wed, 4 May 2016 10:32:31 +0200
Subject: [PATCH] add real options list to ItemField JSON export (fixes #10778)

It's a read-only value, ignored on import (items and data_source define it).
---
 tests/test_fields.py | 14 ++++++++++++++
 wcs/fields.py        | 19 +++++++++++++++++++
 2 files changed, 33 insertions(+)

diff --git a/tests/test_fields.py b/tests/test_fields.py
index 768e12f..d5dd0d5 100644
--- a/tests/test_fields.py
+++ b/tests/test_fields.py
@@ -278,3 +278,17 @@ def test_item_render_as_radio():
         form = Form()
         field.add_to_form(form)
         assert str(form.render()).count('"radio"') == 1
+
+def test_item_export_options():
+    items_kwargs = []
+    items_kwargs.append({'items': ['a', 'b', 'c']})
+    items_kwargs.append({'data_source': {
+        'type': 'formula',
+        'value': '''['a', 'b', 'c']'''}})
+
+    for item_kwargs in items_kwargs:
+        field = fields.ItemField(id='1', label='Foobar', show_as_radio=True, **item_kwargs)
+        export = field.export_to_json()
+        assert 'options' in export
+        assert export['options'] == [{'value': 'a', 'label': 'a'}, {'value': 'b', 'label': 'b'},
+                                     {'value': 'c', 'label': 'c'}]
diff --git a/wcs/fields.py b/wcs/fields.py
index 9180582..4413c96 100644
--- a/wcs/fields.py
+++ b/wcs/fields.py
@@ -1200,6 +1200,25 @@ class ItemField(WidgetField):
             values.append(display_value)
         return values
 
+    def export_to_json(self, include_id=False):
+        field = super(ItemField, self).export_to_json(include_id=include_id)
+        options = []
+        for option in self.get_options():
+            value = option[0]
+            try:
+                description = option[1]
+            except IndexError:
+                description = value
+            option = {
+                'value': value,
+                'label': description,
+            }
+            options.append(option)
+        if options:
+            field['options'] = options
+        return field
+
+
 register_field_class(ItemField)
 
 
-- 
2.1.4