properly serializing ValidationError exceptions.

src/server/BreCal/api/shipcalls.py

@@ -7,6 +7,7 @@ from ..services.auth_guard import auth_guard, check_jwt
 from BreCal.validators.input_validation import validate_posted_shipcall_data, check_if_user_is_bsmd_type
 from BreCal.validators.input_validation_shipcall import InputValidationShipcall
 from BreCal.database.sql_handler import execute_sql_query_standalone
+from BreCal.validators.validation_error import create_validation_error_response, create_werkzeug_error_response
 from . import verify_if_request_is_json
 
 import logging
@@ -58,7 +59,7 @@ def PostShipcalls():
     except ValidationError as ex:
         logging.error(ex)
         print(ex)
-        return json.dumps({"message":f"bad format. \nError Messages: {ex.messages}. \nValid Data: {ex.valid_data}"}), 400
+        return create_validation_error_response(ex=ex, status_code=400)
         
     except Exception as ex:
         logging.error(ex)
@@ -88,12 +89,12 @@ def PutShipcalls():
     except ValidationError as ex:
         logging.error(ex)
         print(ex)
-        return json.dumps({"message":f"bad format. \nError Messages: {ex.messages}. \nValid Data: {ex.valid_data}"}), 400
+        return create_validation_error_response(ex=ex, status_code=400)
 
     except werkzeug.exceptions.Forbidden as ex:
         logging.error(ex)
         print(ex)
-        return json.dumps({"message":ex.description}), 403
+        return create_werkzeug_error_response(ex=ex, status_code=403)
         
     except Exception as ex:
         logging.error(ex)

src/server/BreCal/api/ships.py

@@ -6,6 +6,7 @@ from ..schemas import model
 import json
 import logging
 from . import verify_if_request_is_json
+from BreCal.validators.validation_error import create_validation_error_response
 
 from BreCal.validators.input_validation import check_if_user_is_bsmd_type
 from BreCal.validators.input_validation_ship import InputValidationShip
@@ -45,6 +46,11 @@ def PostShip():
         # validate the request data & user permissions
         InputValidationShip.evaluate_post_data(user_data, loadedModel, content)
 
+    except ValidationError as ex:
+        logging.error(ex)
+        print(ex)
+        return create_validation_error_response(ex=ex, status_code=400)
+    
     except Exception as ex:
         logging.error(ex)
         print(ex)
@@ -69,6 +75,11 @@ def PutShip():
         # validate the request data & user permissions
         InputValidationShip.evaluate_put_data(user_data, loadedModel, content)
         
+    except ValidationError as ex:
+        logging.error(ex)
+        print(ex)
+        return create_validation_error_response(ex=ex, status_code=400)
+    
     except Exception as ex:
         logging.error(ex)
         print(ex)
@@ -97,6 +108,11 @@ def DeleteShip():
         # validate the request data & user permissions
         InputValidationShip.evaluate_delete_data(user_data, ship_id)
         
+    except ValidationError as ex:
+        logging.error(ex)
+        print(ex)
+        return create_validation_error_response(ex=ex, status_code=400)
+    
     except Exception as ex:
         logging.error(ex)
         print(ex)

src/server/BreCal/api/times.py

@@ -7,6 +7,7 @@ import logging
 from marshmallow import ValidationError
 from BreCal.validators.input_validation_times import InputValidationTimes
 from . import verify_if_request_is_json
+from BreCal.validators.validation_error import create_validation_error_response, create_werkzeug_error_response
 
 bp = Blueprint('times', __name__)
 
@@ -44,7 +45,7 @@ def PostTimes():
     except ValidationError as ex:
         logging.error(ex)
         print(ex)
-        return json.dumps(f"bad format. \nError Messages: {ex.messages}. \nValid Data: {ex.valid_data}"), 400
+        return create_validation_error_response(ex=ex, status_code=400)
 
     except Exception as ex:
         logging.error(ex)
@@ -73,7 +74,7 @@ def PutTimes():
     except ValidationError as ex:
         logging.error(ex)
         print(ex)
-        return json.dumps(f"bad format. \nError Messages: {ex.messages}. \nValid Data: {ex.valid_data}"), 400
+        return create_validation_error_response(ex=ex, status_code=400)
 
     except Exception as ex:
         logging.error(ex)
@@ -87,17 +88,28 @@ def PutTimes():
 @auth_guard() # no restriction by role
 def DeleteTimes():
 
-    if 'id' in request.args:
+    try:
-        options = {}
+        if 'id' in request.args:
-        options["id"] = request.args.get("id")
+            options = {}
+            options["id"] = request.args.get("id")
 
-        # read the user data from the JWT token (set when login is performed)
+            # read the user data from the JWT token (set when login is performed)
-        user_data = check_jwt()
+            user_data = check_jwt()
 
-        # validate the request
+            # validate the request
-        InputValidationTimes.evaluate_delete_data(user_data, times_id = request.args.get("id"))
+            InputValidationTimes.evaluate_delete_data(user_data, times_id = request.args.get("id"))
 
-        return impl.times.DeleteTimes(options)
+            return impl.times.DeleteTimes(options)
-    else:
+        else:
-        logging.warning("Times delete missing id argument")
+            logging.warning("Times delete missing id argument")
-        return json.dumps("missing argument"), 400
+            return json.dumps("missing argument"), 400
+        
+    except ValidationError as ex:
+        logging.error(ex)
+        print(ex)
+        return create_validation_error_response(ex=ex, status_code=400)
+
+    except Exception as ex:
+        logging.error(ex)
+        print(ex)
+        return json.dumps("bad format"), 400

src/server/BreCal/validators/input_validation_ship.py

@@ -102,6 +102,9 @@ class InputValidationShip():
     @staticmethod
     def put_content_may_not_contain_imo_number(content:dict):
         put_data_ship_imo = content.get("imo",None)
+
+        # #TODO: Aktuelle IMO abfragen und nach Änderung suchen, bevor eine Fehlermeldung erstellt wird
+
         if put_data_ship_imo is not None:
             raise ValidationError(f"The IMO number field may not be changed since it serves the purpose of a primary (matching) key.")
         return

src/server/BreCal/validators/validation_error.py

@@ -0,0 +1,34 @@
+import logging
+import typing
+import json
+from marshmallow import ValidationError
+import werkzeug
+from werkzeug.exceptions import Forbidden
+
+
+
+def create_validation_error_response(ex:ValidationError, status_code:int=400)->typing.Tuple[str,int]:
+    # generate an overview the errors
+    #example: 
+    #    {'lock_time': ['The provided value must be in the future. Current Time: 2024-09-02 08:23:32.600791, Value: 2024-09-01 08:20:41.853000']}
+    errors = ex.messages
+
+    # example: 
+    #    "Valid Data": {
+    #        "id": 2894,
+    #        "eta_berth": "datetime.datetime(2024, 9, 2, 11, 11, 43)",
+    #        "eta_berth_fixed": false
+    #    }
+    valid_data = ex.valid_data
+
+
+    json_response = {
+        "message":"ValidationError",
+        "errors":errors,
+        "valid_data":valid_data
+    }
+    return (json.dumps(json_response), status_code)
+
+def create_werkzeug_error_response(ex:Forbidden, status_code:int=403)->typing.Tuple[str,int]:
+    return json.dumps({"message":ex.description}), status_code
+