# 129 Handler code

* adds handler code list usage to forms and models
* updates tests
* extends API for handler code handling

intervention/models/responsibility.py

@@ -6,12 +6,43 @@ Created on: 15.11.21
 
 """
 from django.db import models
+from django.utils.translation import gettext_lazy as _
 
 from codelist.models import KonovaCode
-from codelist.settings import CODELIST_CONSERVATION_OFFICE_ID, CODELIST_REGISTRATION_OFFICE_ID
+from codelist.settings import CODELIST_CONSERVATION_OFFICE_ID, CODELIST_REGISTRATION_OFFICE_ID, \
+    CODELIST_COMPENSATION_HANDLER_ID
 from konova.models import UuidModel
 
 
+class Handler(UuidModel):
+    """ The handler of an entry
+
+    Refers to 'Eingriffsverursacher' or 'Maßnahmenträger'
+
+    """
+    type = models.ForeignKey(
+        KonovaCode,
+        on_delete=models.SET_NULL,
+        null=True,
+        blank=True,
+        limit_choices_to={
+            "code_lists__in": [CODELIST_COMPENSATION_HANDLER_ID],
+            "is_selectable": True,
+            "is_archived": False,
+        }
+    )
+    detail = models.CharField(
+        max_length=500,
+        null=True,
+        blank=True,
+    )
+
+    def __str__(self):
+        detail = self.detail or _("no further details")
+        _type = self.type.long_name if self.type is not None else None
+        return f'{_type}, {detail}'
+
+
 class Responsibility(UuidModel):
     """
     Holds intervention data about responsible organizations and their file numbers for this case
@@ -43,11 +74,17 @@ class Responsibility(UuidModel):
         }
     )
     conservation_file_number = models.CharField(max_length=1000, blank=True, null=True)
-    handler = models.CharField(max_length=500, null=True, blank=True, help_text="Refers to 'Eingriffsverursacher' or 'Maßnahmenträger'")
+    handler = models.ForeignKey(
+        Handler,
+        null=True,
+        blank=True,
+        help_text="Refers to 'Eingriffsverursacher' or 'Maßnahmenträger'",
+        on_delete=models.SET_NULL,
+    )
 
     def __str__(self):
         return "ZB: {} | ETS: {} | Handler: {}".format(
             self.registration_office,
             self.conservation_office,
-            self.handler
+            str(self.handler)
         )