map: export json in a lat/lon dict (#6933)

tests/test_fields.py

@@ -133,3 +133,10 @@ def test_comment():
     form = Form()
     field.add_to_form(form)
     assert '<p>Foobar</p>' in str(form.render())
+
+def test_map():
+    assert fields.MapField().get_json_value('42.2;10.2') == {'lat': 42.2, 'lon': 10.2}
+    assert fields.MapField().get_json_value('-42.2;10.2') == {'lat': -42.2, 'lon': 10.2}
+    assert fields.MapField().get_json_value(' 42.2 ; 10.2 ') == {'lat': 42.2, 'lon': 10.2}
+    assert fields.MapField().get_json_value('') == None
+    assert fields.MapField().get_json_value('foobar') == None

wcs/fields.py

@@ -1479,6 +1479,17 @@ class MapField(WidgetField):
     def get_rst_view_value(self, value, indent=''):
         return indent + value
 
+    def get_json_value(self, value):
+        if not value or ';' not in value:
+            return None
+        lat, lon = value.split(';')
+        try:
+            lat = float(lat)
+            lon = float(lon)
+        except ValueError:
+            return None
+        return {'lat': lat, 'lon': lon}
+
 register_field_class(MapField)