Identifier generating

* refactors identifier generating into BaseObject class

compensation/models.py

@@ -9,15 +9,11 @@ from django.contrib.auth.models import User
 from django.contrib.gis.db import models
 from django.core.validators import MinValueValidator
 from django.db.models import Sum
-from django.utils.timezone import now
 from django.utils.translation import gettext_lazy as _
 
-from compensation.settings import COMPENSATION_IDENTIFIER_LENGTH, COMPENSATION_IDENTIFIER_TEMPLATE, \
-    ECO_ACCOUNT_IDENTIFIER_LENGTH, ECO_ACCOUNT_IDENTIFIER_TEMPLATE
 from intervention.models import Intervention, ResponsibilityData
 from konova.models import BaseObject, BaseResource, Geometry, UuidModel
 from konova.settings import DEFAULT_SRID_RLP, LANIS_LINK_TEMPLATE
-from konova.utils.generators import generate_random_string
 from user.models import UserActionLogEntry
 
 
@@ -146,22 +142,6 @@ class Compensation(AbstractCompensation):
     def __str__(self):
         return "{}".format(self.identifier)
 
-    @staticmethod
-    def _generate_new_identifier() -> str:
-        """ Generates a new identifier for the intervention object
-
-        Returns:
-            str
-        """
-        curr_month = str(now().month)
-        curr_year = str(now().year)
-        rand_str = generate_random_string(
-            length=COMPENSATION_IDENTIFIER_LENGTH,
-            only_numbers=True,
-        )
-        _str = "{}{}{}".format(curr_month, curr_year, rand_str)
-        return COMPENSATION_IDENTIFIER_TEMPLATE.format(_str)
-
     def save(self, *args, **kwargs):
         if self.identifier is None or len(self.identifier) == 0:
             # Create new identifier
@@ -284,22 +264,6 @@ class EcoAccount(AbstractCompensation):
         # ToDo
         pass
 
-    @staticmethod
-    def _generate_new_identifier() -> str:
-        """ Generates a new identifier for the intervention object
-
-        Returns:
-            str
-        """
-        curr_month = str(now().month)
-        curr_year = str(now().year)
-        rand_str = generate_random_string(
-            length=ECO_ACCOUNT_IDENTIFIER_LENGTH,
-            only_numbers=True,
-        )
-        _str = "{}{}{}".format(curr_month, curr_year, rand_str)
-        return ECO_ACCOUNT_IDENTIFIER_TEMPLATE.format(_str)
-
 
 class EcoAccountWithdraw(BaseResource):
     """