#20 Multiple laws

* refactors law field from ForeignKey to ManyToManyField to support multiple laws being added to one LegalData object
* added funding data to EMA detail view

intervention/models.py

@@ -136,6 +136,7 @@ class RevocationDocument(AbstractDocument):
                 # Folder seems to be missing already
                 pass
 
+
 class LegalData(UuidModel):
     """
     Holds intervention legal data such as important dates, laws or responsible handler
@@ -158,11 +159,9 @@ class LegalData(UuidModel):
             "is_archived": False,
         }
     )
-    law = models.ForeignKey(
+    laws = models.ManyToManyField(
         KonovaCode,
-        on_delete=models.SET_NULL,
         null=True,
-        related_name="+",
         blank=True,
         limit_choices_to={
             "code_lists__in": [CODELIST_LAW_ID],
@@ -173,13 +172,6 @@ class LegalData(UuidModel):
 
     revocation = models.OneToOneField(Revocation, null=True, blank=True, help_text="Refers to 'Widerspruch am'", on_delete=models.SET_NULL)
 
-    def __str__(self):
-        return "{} | {} | {}".format(
-            self.process_type,
-            self.law,
-            self.id
-        )
-
 
 class Intervention(BaseObject):
     """