#31 API basic implementation Cleanup

* cleans code
* reworks many code fragments into smaller methods and split into super class

api/urls/v1/urls.py

@@ -7,15 +7,16 @@ Created on: 21.01.22
 """
 from django.urls import path
 
-from api.views.v1.compensation import APICompensationViewV1
-from api.views.v1.ecoaccount import APIEcoAccountViewV1
-from api.views.v1.ema import APIEmaViewV1
-from api.views.v1.intervention import APIInterventionViewV1
+from api.views.v1.views import EmaAPIViewV1, EcoAccountAPIViewV1, CompensationAPIViewV1, InterventionAPIViewV1
 
 app_name = "v1"
 urlpatterns = [
-    path("intervention/<id>", APIInterventionViewV1.as_view(), name="intervention"),
-    path("compensation/<id>", APICompensationViewV1.as_view(), name="compensation"),
-    path("ecoaccount/<id>", APIEcoAccountViewV1.as_view(), name="ecoaccount"),
-    path("ema/<id>", APIEmaViewV1.as_view(), name="ema"),
+    path("intervention/<id>", InterventionAPIViewV1.as_view(), name="intervention"),
+    path("intervention/", InterventionAPIViewV1.as_view(), name="intervention"),
+    path("compensation/<id>", CompensationAPIViewV1.as_view(), name="compensation"),
+    path("compensation/", CompensationAPIViewV1.as_view(), name="compensation"),
+    path("ecoaccount/<id>", EcoAccountAPIViewV1.as_view(), name="ecoaccount"),
+    path("ecoaccount/", EcoAccountAPIViewV1.as_view(), name="ecoaccount"),
+    path("ema/<id>", EmaAPIViewV1.as_view(), name="ema"),
+    path("ema/", EmaAPIViewV1.as_view(), name="ema"),
 ]

api/utils/__init__.py

@@ -0,0 +1,7 @@
+"""
+Author: Michel Peltriaux
+Organization: Struktur- und Genehmigungsdirektion Nord, Rhineland-Palatinate, Germany
+Contact: michel.peltriaux@sgdnord.rlp.de
+Created on: 24.01.22
+
+"""

api/utils/serializer/__init__.py

@@ -0,0 +1,7 @@
+"""
+Author: Michel Peltriaux
+Organization: Struktur- und Genehmigungsdirektion Nord, Rhineland-Palatinate, Germany
+Contact: michel.peltriaux@sgdnord.rlp.de
+Created on: 24.01.22
+
+"""

api/utils/serializer/serializer.py

@@ -0,0 +1,137 @@
+"""
+Author: Michel Peltriaux
+Organization: Struktur- und Genehmigungsdirektion Nord, Rhineland-Palatinate, Germany
+Contact: michel.peltriaux@sgdnord.rlp.de
+Created on: 24.01.22
+
+"""
+import json
+from abc import abstractmethod
+
+from django.contrib.gis import geos
+from django.contrib.gis.geos import GEOSGeometry
+
+
+class AbstractModelAPISerializer:
+    model = None
+    lookup = None
+    properties_data = None
+
+    class Meta:
+        abstract = True
+
+    def __init__(self, *args, **kwargs):
+        self.lookup = {
+            "id": None,  # must be set
+            "deleted__isnull": True,
+            "users__in": [],  # must be set
+        }
+        super().__init__(*args, **kwargs)
+
+    @abstractmethod
+    def model_to_geo_json(self, entry):
+        """ Defines the model as geo json
+
+        Args:
+            entry (): The found entry from the database
+
+        Returns:
+
+        """
+        raise NotImplementedError("Must be implemented in subclasses")
+
+    @abstractmethod
+    def extend_properties_data(self, entry):
+        """ Defines the 'properties' part of geo json
+
+        Args:
+            entry (): The found entry from the database
+
+        Returns:
+
+        """
+        raise NotImplementedError("Must be implemented in subclasses")
+
+    @abstractmethod
+    def prepare_lookup(self, _id, user):
+        """ Updates lookup dict for db fetching
+
+        Args:
+            _id (str): The object's id
+            user (User): The user requesting for
+
+        Returns:
+
+        """
+        self.lookup["id"] = _id
+        self.lookup["users__in"] = [user]
+
+    def fetch_and_serialize(self):
+        """ Serializes the model entry according to the given lookup data
+
+        Args:
+
+        Returns:
+            serialized_data (dict)
+        """
+        entry = self.model.objects.get(**self.lookup)
+        serialized_data = self.model_to_geo_json(entry)
+        return serialized_data
+
+    @abstractmethod
+    def update_model_from_json(self, id, json_model, user):
+        """ Updates an instance from given json data
+
+        Args:
+            id (str): The instance's to be updated
+            json_model (dict): JSON data
+            user (User): The performing user
+
+        Returns:
+
+        """
+        raise NotImplementedError("Must be implemented in subclasses")
+
+    @abstractmethod
+    def create_model_from_json(self, json_model, user):
+        """ Creates a new instance from given json data
+
+        Args:
+            json_model (dict): JSON data
+            user (User): The performing user
+
+        Returns:
+
+        """
+        raise NotImplementedError("Must be implemented in subclasses")
+
+    def create_geometry_from_json(self, geojson) -> GEOSGeometry:
+        """ Creates a GEOSGeometry object based on the given geojson
+
+        Args:
+            geojson (str|dict): The geojson as str or dict
+
+        Returns:
+            geometry (GEOSGeometry)
+        """
+        if isinstance(geojson, dict):
+            geojson = json.dumps(geojson)
+        geometry = geos.fromstr(geojson)
+        return geometry
+
+    def get_obj_from_db(self, id, user):
+        """ Returns the object from database
+
+        Fails if id not found or user does not have shared access
+
+        Args:
+            id (str): The object's id
+            user (User): The API user
+
+        Returns:
+
+        """
+        return self.model.objects.get(
+            id=id,
+            users__in=[user]
+        )

api/utils/serializer/v1/__init__.py

@@ -0,0 +1,7 @@
+"""
+Author: Michel Peltriaux
+Organization: Struktur- und Genehmigungsdirektion Nord, Rhineland-Palatinate, Germany
+Contact: michel.peltriaux@sgdnord.rlp.de
+Created on: 24.01.22
+
+"""

api/utils/serializer/v1/compensation.py

@@ -2,21 +2,20 @@
 Author: Michel Peltriaux
 Organization: Struktur- und Genehmigungsdirektion Nord, Rhineland-Palatinate, Germany
 Contact: michel.peltriaux@sgdnord.rlp.de
-Created on: 21.01.22
+Created on: 24.01.22
 
 """
-
-from api.views.v1.views import AbstractModelAPIViewV1
+from api.utils.serializer.v1.serializer import AbstractModelAPISerializerV1
 from compensation.models import Compensation
 
 
-class APICompensationViewV1(AbstractModelAPIViewV1):
+class CompensationAPISerializerV1(AbstractModelAPISerializerV1):
     model = Compensation
 
-    def prepare_lookup(self, id):
+    def prepare_lookup(self, id, user):
         self.lookup["id"] = id
         del self.lookup["users__in"]
-        self.lookup["intervention__users__in"] = [self.user]
+        self.lookup["intervention__users__in"] = [user]
 
     def intervention_to_json(self, entry):
         return {
@@ -32,5 +31,4 @@ class APICompensationViewV1(AbstractModelAPIViewV1):
         self.properties_data["before_states"] = self.compensation_state_to_json(entry.before_states.all())
         self.properties_data["after_states"] = self.compensation_state_to_json(entry.after_states.all())
         self.properties_data["actions"] = self.compensation_actions_to_json(entry.actions.all())
-        self.properties_data["deadlines"] = self.deadlines_to_json(entry.deadlines.all())
-
+        self.properties_data["deadlines"] = self.deadlines_to_json(entry.deadlines.all())

api/utils/serializer/v1/ecoaccount.py

@@ -2,15 +2,15 @@
 Author: Michel Peltriaux
 Organization: Struktur- und Genehmigungsdirektion Nord, Rhineland-Palatinate, Germany
 Contact: michel.peltriaux@sgdnord.rlp.de
-Created on: 21.01.22
+Created on: 24.01.22
 
 """
-from api.views.v1.views import AbstractModelAPIViewV1
+from api.utils.serializer.v1.serializer import AbstractModelAPISerializerV1
 from compensation.models import EcoAccount
 from intervention.models import Legal, Responsibility
 
 
-class APIEcoAccountViewV1(AbstractModelAPIViewV1):
+class EcoAccountAPISerializerV1(AbstractModelAPISerializerV1):
     model = EcoAccount
 
     def extend_properties_data(self, entry):

api/utils/serializer/v1/ema.py

@@ -2,15 +2,15 @@
 Author: Michel Peltriaux
 Organization: Struktur- und Genehmigungsdirektion Nord, Rhineland-Palatinate, Germany
 Contact: michel.peltriaux@sgdnord.rlp.de
-Created on: 21.01.22
+Created on: 24.01.22
 
 """
-from api.views.v1.views import AbstractModelAPIViewV1
+from api.utils.serializer.v1.serializer import AbstractModelAPISerializerV1
 from ema.models import Ema
 from intervention.models import Responsibility
 
 
-class APIEmaViewV1(AbstractModelAPIViewV1):
+class EmaAPISerializerV1(AbstractModelAPISerializerV1):
     model = Ema
 
     def responsible_to_json(self, responsible: Responsibility):

api/utils/serializer/v1/intervention.py

@@ -0,0 +1,169 @@
+"""
+Author: Michel Peltriaux
+Organization: Struktur- und Genehmigungsdirektion Nord, Rhineland-Palatinate, Germany
+Contact: michel.peltriaux@sgdnord.rlp.de
+Created on: 24.01.22
+
+"""
+from django.db import transaction
+from django.db.models import QuerySet
+
+from api.utils.serializer.v1.serializer import AbstractModelAPISerializerV1
+from codelist.settings import CODELIST_CONSERVATION_OFFICE_ID, CODELIST_REGISTRATION_OFFICE_ID, \
+    CODELIST_PROCESS_TYPE_ID, CODELIST_LAW_ID
+from intervention.models import Intervention, Responsibility, Legal
+from konova.models import Geometry
+from konova.tasks import celery_update_parcels
+from user.models import UserActionLogEntry
+
+
+class InterventionAPISerializerV1(AbstractModelAPISerializerV1):
+    model = Intervention
+
+    def compensations_to_json(self, qs: QuerySet):
+        return list(
+            qs.values(
+                "id", "identifier", "title"
+            )
+        )
+
+    def extend_properties_data(self, entry):
+        self.properties_data["responsible"] = self.responsible_to_json(entry.responsible)
+        self.properties_data["legal"] = self.legal_to_json(entry.legal)
+        self.properties_data["compensations"] = self.compensations_to_json(entry.compensations.all())
+        self.properties_data["payments"] = self.payments_to_json(entry.payments.all())
+        self.properties_data["deductions"] = self.deductions_to_json(entry.deductions.all())
+
+    def initialize_objects(self, json_model, user):
+        """ Initializes all needed objects from the json_model data
+
+        Does not persist data to the DB!
+
+        Args:
+            json_model (dict): The json data
+            user (User): The API user
+
+        Returns:
+            obj (Intervention)
+        """
+        # Create geometry
+        json_geom = self.create_geometry_from_json(json_model)
+        geometry = Geometry()
+        geometry.geom = json_geom
+
+        # Create linked objects
+        obj = Intervention()
+        resp = Responsibility()
+        legal = Legal()
+        created = UserActionLogEntry.get_created_action(user, comment="API Import")
+        obj.legal = legal
+        obj.created = created
+        obj.geometry = geometry
+        obj.responsible = resp
+        return obj
+
+    def set_legal(self, obj, legal_data):
+        """ Sets the legal data contents to the provided legal_data dict
+
+        Args:
+            obj (Intervention): The intervention object
+            legal_data (dict): The new data
+
+        Returns:
+            obj
+        """
+        obj.legal.registration_date = legal_data["registration_date"]
+        obj.legal.binding_date = legal_data["binding_date"]
+        obj.legal.process_type = self.konova_code_from_json(
+            legal_data["process_type"],
+            CODELIST_PROCESS_TYPE_ID,
+        )
+        laws = [self.konova_code_from_json(law, CODELIST_LAW_ID) for law in legal_data["laws"]]
+        obj.legal.laws.set(laws)
+        return obj
+    
+    def set_responsibility(self, obj, responsibility_data: dict):
+        """ Sets the responsible data contents to the provided responsibility_data dict
+
+        Args:
+            obj (Intervention): The intervention object
+            responsibility_data (dict): The new data
+
+        Returns:
+            obj
+        """
+        obj.responsible.registration_office = self.konova_code_from_json(
+            responsibility_data["registration_office"],
+            CODELIST_REGISTRATION_OFFICE_ID
+        )
+        obj.responsible.registration_file_number = responsibility_data["registration_file_number"]
+        obj.responsible.conservation_office = self.konova_code_from_json(
+            responsibility_data["conservation_office"],
+            CODELIST_CONSERVATION_OFFICE_ID,
+        )
+        obj.responsible.conservation_file_number = responsibility_data["conservation_file_number"]
+        obj.responsible.handler = responsibility_data["handler"]
+        return obj
+
+    def create_model_from_json(self, json_model, user):
+        """ Creates a new entry for the model based on the contents of json_model
+
+        Args:
+            json_model (dict): The json containing data
+            user (User): The API user
+
+        Returns:
+            created_id (str): The id of the newly created Intervention entry
+        """
+        with transaction.atomic():
+            obj = self.initialize_objects(json_model, user)
+
+            # Fill in data to objects
+            properties = json_model["properties"]
+            obj.identifier = obj.generate_new_identifier()
+            obj.title = properties["title"]
+            self.set_responsibility(obj, properties["responsible"])
+            self.set_legal(obj, properties["legal"])
+
+            obj.responsible.save()
+            obj.geometry.save()
+            obj.legal.save()
+            obj.save()
+
+            obj.users.add(user)
+
+            celery_update_parcels.delay(obj.geometry.id)
+
+            return obj.id
+
+    def update_model_from_json(self, id, json_model, user):
+        """ Updates an entry for the model based on the contents of json_model
+
+        Args:
+            id (str): The object's id
+            json_model (dict): The json containing data
+            user (User): The API user
+
+        Returns:
+            created_id (str): The id of the newly created Intervention entry
+        """
+        with transaction.atomic():
+            obj = self.get_obj_from_db(id, user)
+
+            # Fill in data to objects
+            properties = json_model["properties"]
+            obj.title = properties["title"]
+            self.set_responsibility(obj, properties["responsible"])
+            self.set_legal(obj, properties["legal"])
+            obj.geometry.geom = self.create_geometry_from_json(json_model)
+
+            obj.responsible.save()
+            obj.geometry.save()
+            obj.legal.save()
+            obj.save()
+
+            obj.users.add(user)
+
+            celery_update_parcels.delay(obj.geometry.id)
+
+            return obj.id

api/utils/serializer/v1/serializer.py

@@ -0,0 +1,218 @@
+"""
+Author: Michel Peltriaux
+Organization: Struktur- und Genehmigungsdirektion Nord, Rhineland-Palatinate, Germany
+Contact: michel.peltriaux@sgdnord.rlp.de
+Created on: 24.01.22
+
+"""
+
+import json
+
+from django.db.models import QuerySet
+
+from api.utils.serializer.serializer import AbstractModelAPISerializer
+from codelist.models import KonovaCode
+from intervention.models import Responsibility, Legal
+
+
+class AbstractModelAPISerializerV1(AbstractModelAPISerializer):
+    def model_to_geo_json(self, entry):
+        """ Adds the basic data, which all elements hold
+
+        Args:
+            entry (): The data entry
+
+        Returns:
+
+        """
+        geom = entry.geometry.geom.geojson
+        geo_json = json.loads(geom)
+        self.properties_data = {
+            "id": entry.id,
+            "identifier": entry.identifier,
+            "title": entry.title,
+            "created_on": self.created_on_to_json(entry),
+            "modified_on": self.modified_on_to_json(entry),
+        }
+        self.extend_properties_data(entry)
+        geo_json["properties"] = self.properties_data
+        return geo_json
+
+    def konova_code_to_json(self, konova_code: KonovaCode):
+        """ Serializes KonovaCode model into json
+
+        Args:
+            konova_code (KonovaCode): The KonovaCode entry
+
+        Returns:
+            serialized_json (dict)
+        """
+        return {
+            "atom_id": konova_code.atom_id,
+            "long_name": konova_code.long_name,
+            "short_name": konova_code.short_name,
+        }
+
+    def konova_code_from_json(self, json_str, code_list_identifier):
+        """ Returns a konova code instance
+
+        Args:
+            json_str (str): The value for the code (atom id)
+            code_list_identifier (str): From which konova code list this code is supposed to be from
+
+        Returns:
+
+        """
+        if json_str is None or len(json_str) == 0:
+            return None
+        code = KonovaCode.objects.get(
+            atom_id=json_str,
+            code_lists__in=[code_list_identifier]
+        )
+        return code
+
+    def responsible_to_json(self, responsible: Responsibility):
+        """ Serializes Responsibility model into json
+
+        Args:
+            responsible (Responsibility): The Responsibility entry
+
+        Returns:
+            serialized_json (dict)
+        """
+        return {
+            "registration_office": self.konova_code_to_json(responsible.registration_office),
+            "registration_file_number": responsible.registration_file_number,
+            "conservation_office": self.konova_code_to_json(responsible.conservation_office),
+            "conservation_file_number": responsible.conservation_file_number,
+            "handler": responsible.handler,
+        }
+
+    def legal_to_json(self, legal: Legal):
+        """ Serializes Legal model into json
+
+        Args:
+            legal (Legal): The Legal entry
+
+        Returns:
+            serialized_json (dict)
+        """
+        return {
+            "registration_date": legal.registration_date,
+            "binding_date": legal.binding_date,
+            "process_type": self.konova_code_to_json(legal.process_type),
+            "laws": [self.konova_code_to_json(law) for law in legal.laws.all()],
+        }
+
+    def payments_to_json(self, qs: QuerySet):
+        """ Serializes payments into json
+
+        Args:
+            qs (QuerySet): A queryset of Payment entries
+
+        Returns:
+            serialized_json (list)
+        """
+        return list(qs.values("amount", "due_on", "comment"))
+
+    def deductions_to_json(self, qs: QuerySet):
+        """ Serializes eco account deductions into json
+
+        Args:
+            qs (QuerySet): A queryset of EcoAccountDeduction entries
+
+        Returns:
+            serialized_json (list)
+        """
+        return [
+            {
+                "id": entry.pk,
+                "eco_account": {
+                    "id": entry.account.pk,
+                    "identifier": entry.account.identifier,
+                    "title": entry.account.title,
+                },
+                "surface": entry.surface,
+                "intervention": {
+                    "id": entry.intervention.pk,
+                    "identifier": entry.intervention.identifier,
+                    "title": entry.intervention.title,
+                }
+            }
+            for entry in qs
+        ]
+
+    def compensation_state_to_json(self, qs: QuerySet):
+        """ Serializes compensation states into json
+
+        Args:
+            qs (QuerySet): A queryset of CompensationState entries
+
+        Returns:
+            serialized_json (list)
+        """
+        return [
+            {
+                "biotope": self.konova_code_to_json(entry.biotope_type),
+                "surface": entry.surface,
+            }
+            for entry in qs
+        ]
+
+    def compensation_actions_to_json(self, qs: QuerySet):
+        """ Serializes CompensationActions into json
+
+        Args:
+            qs (QuerySet): A queryset of CompensationAction entries
+
+        Returns:
+            serialized_json (list)
+        """
+        return [
+            {
+                "action": self.konova_code_to_json(entry.action_type),
+                "amount": entry.amount,
+                "unit": entry.unit,
+                "comment": entry.comment,
+            }
+            for entry in qs
+        ]
+
+    def deadlines_to_json(self, qs: QuerySet):
+        """ Serializes deadlines into json
+
+        Args:
+            qs (QuerySet): A queryset of Deadline entries
+
+        Returns:
+            serialized_json (list)
+        """
+        return list(qs.values(
+            "type",
+            "date",
+            "comment",
+        ))
+
+    def created_on_to_json(self, entry):
+        """ Serializes the created_on into json
+
+        Args:
+            entry (BaseObject): The entry
+
+        Returns:
+            created_on (timestamp)
+        """
+        return entry.created.timestamp
+
+    def modified_on_to_json(self, entry):
+        """ Serializes the modified_on into json
+
+        Args:
+            entry (BaseObject): The entry
+
+        Returns:
+            modified_on (timestamp)
+        """
+        modified_on = entry.modified or entry.created
+        modified_on = modified_on.timestamp
+        return modified_on

api/views/v1/intervention.py

@@ -1,29 +0,0 @@
-"""
-Author: Michel Peltriaux
-Organization: Struktur- und Genehmigungsdirektion Nord, Rhineland-Palatinate, Germany
-Contact: michel.peltriaux@sgdnord.rlp.de
-Created on: 21.01.22
-
-"""
-from django.db.models import QuerySet
-
-from api.views.v1.views import AbstractModelAPIViewV1
-from intervention.models import Intervention
-
-
-class APIInterventionViewV1(AbstractModelAPIViewV1):
-    model = Intervention
-
-    def compensations_to_json(self, qs: QuerySet):
-        return list(
-            qs.values(
-                "id", "identifier", "title"
-            )
-        )
-
-    def extend_properties_data(self, entry):
-        self.properties_data["responsible"] = self.responsible_to_json(entry.responsible)
-        self.properties_data["legal"] = self.legal_to_json(entry.legal)
-        self.properties_data["compensations"] = self.compensations_to_json(entry.compensations.all())
-        self.properties_data["payments"] = self.payments_to_json(entry.payments.all())
-        self.properties_data["deductions"] = self.deductions_to_json(entry.deductions.all())

api/views/v1/views.py

@@ -7,12 +7,13 @@ Created on: 21.01.22
 """
 import json
 
-from django.db.models import QuerySet
 from django.http import JsonResponse, HttpRequest
 
+from api.utils.serializer.v1.compensation import CompensationAPISerializerV1
+from api.utils.serializer.v1.ecoaccount import EcoAccountAPISerializerV1
+from api.utils.serializer.v1.ema import EmaAPISerializerV1
+from api.utils.serializer.v1.intervention import InterventionAPISerializerV1
 from api.views.views import AbstractModelAPIView
-from codelist.models import KonovaCode
-from intervention.models import Responsibility, Legal
 
 
 class AbstractModelAPIViewV1(AbstractModelAPIView):
@@ -20,7 +21,7 @@ class AbstractModelAPIViewV1(AbstractModelAPIView):
 
     """
 
-    def get(self, request: HttpRequest, id):
+    def get(self, request: HttpRequest, id=None):
         """ Handles the GET request
 
         Performs the fetching and serialization of the data
@@ -32,205 +33,45 @@ class AbstractModelAPIViewV1(AbstractModelAPIView):
         Returns:
 
         """
-        self.prepare_lookup(id)
-
         try:
-            data = self.fetch_and_serialize()
+            if id is None:
+                raise AttributeError("No id provided")
+            self.serializer.prepare_lookup(id, self.user)
+            data = self.serializer.fetch_and_serialize()
         except Exception as e:
             return self.return_error_response(e, 500)
         return JsonResponse(data)
 
-    def model_to_geo_json(self, entry):
-        """ Adds the basic data, which all elements hold
+    def post(self, request: HttpRequest, id=None):
+        try:
+            body = request.body.decode("utf-8")
+            body = json.loads(body)
+            created_id = self.serializer.create_model_from_json(body, self.user)
+        except Exception as e:
+            return self.return_error_response(e, 500)
+        return JsonResponse({"id": created_id})
 
-        Args:
-            entry (): The data entry
+    def put(self, request: HttpRequest, id=None):
+        try:
+            body = request.body.decode("utf-8")
+            body = json.loads(body)
+            updated_id = self.serializer.update_model_from_json(id, body, self.user)
+        except Exception as e:
+            return self.return_error_response(e, 500)
+        return JsonResponse({"id": updated_id})
 
-        Returns:
 
-        """
-        geom = entry.geometry.geom.geojson
-        geo_json = json.loads(geom)
-        self.properties_data = {
-            "id": entry.id,
-            "identifier": entry.identifier,
-            "title": entry.title,
-            "created_on": self.created_on_to_json(entry),
-            "modified_on": self.modified_on_to_json(entry),
-        }
-        self.extend_properties_data(entry)
-        geo_json["properties"] = self.properties_data
-        return geo_json
+class InterventionAPIViewV1(AbstractModelAPIViewV1):
+    serializer = InterventionAPISerializerV1
 
-    def prepare_lookup(self, id):
-        """ Customizes lookup values for db filtering
 
-        Args:
-            id (str): The entries id
+class CompensationAPIViewV1(AbstractModelAPIViewV1):
+    serializer = CompensationAPISerializerV1
 
-        Returns:
 
-        """
-        self.lookup["id"] = id
-        self.lookup["users__in"] = [self.user]
+class EcoAccountAPIViewV1(AbstractModelAPIViewV1):
+    serializer = EcoAccountAPISerializerV1
 
-    def konova_code_to_json(self, konova_code: KonovaCode):
-        """ Serializes KonovaCode model into json
 
-        Args:
-            konova_code (KonovaCode): The KonovaCode entry
-
-        Returns:
-            serialized_json (dict)
-        """
-        return {
-            "atom_id": konova_code.atom_id,
-            "long_name": konova_code.long_name,
-            "short_name": konova_code.short_name,
-        }
-
-    def responsible_to_json(self, responsible: Responsibility):
-        """ Serializes Responsibility model into json
-
-        Args:
-            responsible (Responsibility): The Responsibility entry
-
-        Returns:
-            serialized_json (dict)
-        """
-        return {
-            "registration_office": self.konova_code_to_json(responsible.registration_office),
-            "registration_file_number": responsible.registration_file_number,
-            "conservation_office": self.konova_code_to_json(responsible.conservation_office),
-            "conservation_file_number": responsible.conservation_file_number,
-            "handler": responsible.handler,
-        }
-
-    def legal_to_json(self, legal: Legal):
-        """ Serializes Legal model into json
-
-        Args:
-            legal (Legal): The Legal entry
-
-        Returns:
-            serialized_json (dict)
-        """
-        return {
-            "registration_date": legal.registration_date,
-            "binding_date": legal.binding_date,
-            "process_type": self.konova_code_to_json(legal.process_type),
-            "laws": [self.konova_code_to_json(law) for law in legal.laws.all()],
-        }
-
-    def payments_to_json(self, qs: QuerySet):
-        """ Serializes payments into json
-
-        Args:
-            qs (QuerySet): A queryset of Payment entries
-
-        Returns:
-            serialized_json (list)
-        """
-        return list(qs.values("amount", "due_on", "comment"))
-
-    def deductions_to_json(self, qs: QuerySet):
-        """ Serializes eco account deductions into json
-
-        Args:
-            qs (QuerySet): A queryset of EcoAccountDeduction entries
-
-        Returns:
-            serialized_json (list)
-        """
-        return [
-            {
-                "id": entry.pk,
-                "eco_account": {
-                    "id": entry.account.pk,
-                    "identifier": entry.account.identifier,
-                    "title": entry.account.title,
-                },
-                "surface": entry.surface,
-                "intervention": {
-                    "id": entry.intervention.pk,
-                    "identifier": entry.intervention.identifier,
-                    "title": entry.intervention.title,
-                }
-            }
-            for entry in qs
-        ]
-
-    def compensation_state_to_json(self, qs: QuerySet):
-        """ Serializes compensation states into json
-
-        Args:
-            qs (QuerySet): A queryset of CompensationState entries
-
-        Returns:
-            serialized_json (list)
-        """
-        return [
-            {
-                "biotope": self.konova_code_to_json(entry.biotope_type),
-                "surface": entry.surface,
-            }
-            for entry in qs
-        ]
-
-    def compensation_actions_to_json(self, qs: QuerySet):
-        """ Serializes CompensationActions into json
-
-        Args:
-            qs (QuerySet): A queryset of CompensationAction entries
-
-        Returns:
-            serialized_json (list)
-        """
-        return [
-            {
-                "action": self.konova_code_to_json(entry.action_type),
-                "amount": entry.amount,
-                "unit": entry.unit,
-                "comment": entry.comment,
-            }
-            for entry in qs
-        ]
-
-    def deadlines_to_json(self, qs: QuerySet):
-        """ Serializes deadlines into json
-
-        Args:
-            qs (QuerySet): A queryset of Deadline entries
-
-        Returns:
-            serialized_json (list)
-        """
-        return list(qs.values(
-            "type",
-            "date",
-            "comment",
-        ))
-
-    def created_on_to_json(self, entry):
-        """ Serializes the created_on into json
-
-        Args:
-            entry (BaseObject): The entry
-
-        Returns:
-            created_on (timestamp)
-        """
-        return entry.created.timestamp
-
-    def modified_on_to_json(self, entry):
-        """ Serializes the modified_on into json
-
-        Args:
-            entry (BaseObject): The entry
-
-        Returns:
-            modified_on (timestamp)
-        """
-        modified_on = entry.modified or entry.created
-        modified_on = modified_on.timestamp
-        return modified_on
+class EmaAPIViewV1(AbstractModelAPIViewV1):
+    serializer = EmaAPISerializerV1

api/views/views.py

@@ -5,10 +5,10 @@ Contact: michel.peltriaux@sgdnord.rlp.de
 Created on: 21.01.22
 
 """
-from abc import abstractmethod
 
 from django.http import JsonResponse
 from django.views import View
+from django.views.decorators.csrf import csrf_exempt
 
 from api.models import APIUserToken
 from api.settings import KSP_TOKEN_HEADER_IDENTIFIER
@@ -22,10 +22,8 @@ class AbstractModelAPIView(View):
     https://datatracker.ietf.org/doc/html/rfc7946
 
     """
-    model = None
+    serializer = None
     user = None
-    lookup = None
-    properties_data = None
 
     class Meta:
         abstract = True
@@ -37,45 +35,12 @@ class AbstractModelAPIView(View):
             "users__in": [],  # must be set in subclasses
         }
         super().__init__(*args, **kwargs)
+        self.serializer = self.serializer()
 
-    @abstractmethod
-    def model_to_geo_json(self, entry):
-        """ Defines the model as geo json
-
-        Args:
-            entry (): The found entry from the database
-
-        Returns:
-
-        """
-        raise NotImplementedError("Must be implemented in subclasses")
-
-    @abstractmethod
-    def extend_properties_data(self, entry):
-        """ Defines the 'properties' part of geo json
-
-        Args:
-            entry (): The found entry from the database
-
-        Returns:
-
-        """
-        raise NotImplementedError("Must be implemented in subclasses")
-
-    def fetch_and_serialize(self):
-        """ Serializes the model entry according to the given lookup data
-
-        Args:
-
-        Returns:
-            serialized_data (dict)
-        """
-        entry = self.model.objects.get(**self.lookup)
-        serialized_data = self.model_to_geo_json(entry)
-        return serialized_data
-
+    @csrf_exempt
     def dispatch(self, request, *args, **kwargs):
         try:
+            # Fetch the proper user from the given request header token
             self.user = APIUserToken.get_user_from_token(request.headers.get(KSP_TOKEN_HEADER_IDENTIFIER, None))
         except PermissionError as e:
             return self.return_error_response(e, 403)