don't enforce 'trs'

Author: KatKatKateryna

models/top_level/providers/records.py

@@ -17,6 +17,7 @@ class Languages(Enum):
 
 
 class TrsAuthorities(Enum):
+    NONE = ""
     ISO8601 = "http://www.opengis.net/def/uom/ISO-8601/0/Gregorian"
 
 

ui_widgets/DataSetterFromUi.py

@@ -318,11 +318,12 @@ def set_resource_data_from_ui(self):
 
             config_data.resources[res_name].extents.temporal.begin = temporal_begin
             config_data.resources[res_name].extents.temporal.end = temporal_end
+            trs = get_enum_value_from_string(
+                TrsAuthorities,
+                get_widget_text_value(dialog.comboBoxResExtentsTemporalTrs),
+            )
             config_data.resources[res_name].extents.temporal.trs = (
-                get_enum_value_from_string(
-                    TrsAuthorities,
-                    get_widget_text_value(dialog.comboBoxResExtentsTemporalTrs),
-                )
+                trs if trs != TrsAuthorities.NONE else None
             )
 
         # links

ui_widgets/UiSetter.py

@@ -530,7 +530,7 @@ def customize_ui_on_launch(self):
         )
         fill_combo_box(
             dialog.comboBoxResExtentsTemporalTrs,
-            TrsAuthorities.ISO8601,
+            TrsAuthorities.NONE,
         )
 
         fill_combo_box(