#112 WIP: Restructure CompensationAction

* changes action_type from ForeignKey into M2M
* adds migration
* changes form widget
* WIP: changes rendering on detail view of compensation
* TEST NOT CHECKED YET!

compensation/models/action.py

@@ -10,9 +10,7 @@ from django.utils.translation import gettext_lazy as _
 
 from codelist.models import KonovaCode
 from codelist.settings import CODELIST_COMPENSATION_ACTION_ID, CODELIST_COMPENSATION_ACTION_DETAIL_ID
-from compensation.managers import CompensationActionManager
 from konova.models import BaseResource
-from konova.utils.message_templates import COMPENSATION_ACTION_REMOVED
 
 
 class UnitChoices(models.TextChoices):
@@ -31,10 +29,8 @@ class CompensationAction(BaseResource):
     """
     Compensations include actions like planting trees, refreshing rivers and so on.
     """
-    action_type = models.ForeignKey(
+    action_type = models.ManyToManyField(
         KonovaCode,
-        on_delete=models.SET_NULL,
-        null=True,
         blank=True,
         limit_choices_to={
             "code_lists__in": [CODELIST_COMPENSATION_ACTION_ID],
@@ -57,10 +53,8 @@ class CompensationAction(BaseResource):
     unit = models.CharField(max_length=100, null=True, blank=True, choices=UnitChoices.choices)
     comment = models.TextField(blank=True, null=True, help_text="Additional comment")
 
-    objects = CompensationActionManager()
-
     def __str__(self):
-        return f"{self.action_type} | {self.amount} {self.unit}"
+        return f"{self.action_type.all()} | {self.amount} {self.unit}"
 
     @property
     def unit_humanize(self):

compensation/models/compensation.py

@@ -104,12 +104,12 @@ class AbstractCompensation(BaseObject, GeoReferencedMixin):
         with transaction.atomic():
             user_action = UserActionLogEntry.get_created_action(user)
             comp_action = CompensationAction.objects.create(
-                action_type=form_data["action_type"],
                 amount=form_data["amount"],
                 unit=form_data["unit"],
                 comment=form_data["comment"],
                 created=user_action,
             )
+            comp_action.action_type.set(form_data.get("action_type", []))
             comp_action_details = form_data["action_type_details"]
             comp_action.action_type_details.set(comp_action_details)
             self.actions.add(comp_action)