Minor enhancements

* refactors eco account rest surface calculation into designated method get_available_rest()
* refactors placeholder setter for BaseForm
* adds automatic eco account identifier generating on saving
* fixes ServerMessageImportance template tag

compensation/forms.py

@@ -67,6 +67,7 @@ class NewPaymentForm(BaseModalForm):
         self.intervention = self.instance
         self.form_title = _("Payment")
         self.form_caption = _("Add a payment for intervention '{}'").format(self.intervention.title)
+        self.add_placeholder_for_field("amount", "0,00")
 
     def save(self):
         with transaction.atomic():
@@ -110,6 +111,7 @@ class NewStateModalForm(BaseModalForm):
         super().__init__(*args, **kwargs)
         self.form_title = _("New state")
         self.form_caption = _("Insert data for the new state")
+        self.add_placeholder_for_field("surface", "0,00")
 
     def save(self, is_before_state: bool = False):
         with transaction.atomic():
@@ -286,6 +288,7 @@ class NewActionModalForm(BaseModalForm):
         super().__init__(*args, **kwargs)
         self.form_title = _("New action")
         self.form_caption = _("Insert data for the new action")
+        self.add_placeholder_for_field("amount", "0,00")
 
     def save(self):
         with transaction.atomic():

compensation/models.py

@@ -12,7 +12,8 @@ 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
+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
@@ -218,13 +219,44 @@ class EcoAccount(AbstractCompensation):
     def __str__(self):
         return "{}".format(self.identifier)
 
+    def save(self, *args, **kwargs):
+        if self.identifier is None or len(self.identifier) == 0:
+            # Create new identifier
+            new_id = self._generate_new_identifier()
+            while EcoAccount.objects.filter(identifier=new_id).exists():
+                new_id = self._generate_new_identifier()
+            self.identifier = new_id
+        super().save(*args, **kwargs)
+
     def get_surface_withdraws(self) -> float:
         """ Calculates the compensation's/account's surface
 
         Returns:
             sum_surface (float)
         """
-        return self.withdraws.all().aggregate(Sum("surface"))["surface__sum"]
+        return self.withdraws.all().aggregate(Sum("surface"))["surface__sum"] or 0
+
+    def get_available_rest(self, as_percentage: bool = False):
+        """ Calculates available rest surface of the eco account
+
+        Args:
+            as_percentage (bool): Whether to return the result as m² or %
+
+        Returns:
+
+        """
+        ret_val = 0
+        withdraws = self.withdraws.all()
+        withdraw_surfaces = withdraws.aggregate(Sum("surface"))["surface__sum"] or 0
+        after_states_surfaces = self.after_states.all().aggregate(Sum("surface"))["surface__sum"] or withdraw_surfaces ## no division by zero
+        ret_val = after_states_surfaces - withdraw_surfaces
+
+        if as_percentage:
+            if after_states_surfaces > 0:
+                ret_val = int((ret_val / after_states_surfaces) * 100)
+            else:
+                ret_val = 0
+        return ret_val
 
     def get_LANIS_link(self) -> str:
         """ Generates a link for LANIS depending on the geometry
@@ -252,6 +284,22 @@ 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):
     """

compensation/settings.py

@@ -7,3 +7,5 @@ Created on: 18.12.20
 """
 COMPENSATION_IDENTIFIER_LENGTH = 10
 COMPENSATION_IDENTIFIER_TEMPLATE = "KOM-{}"
+ECO_ACCOUNT_IDENTIFIER_LENGTH = 10
+ECO_ACCOUNT_IDENTIFIER_TEMPLATE = "OEK-{}"

compensation/tables.py

@@ -238,10 +238,7 @@ class EcoAccountTable(BaseTable):
         Returns:
 
         """
-        withdraws = record.withdraws.all()
+        value = record.get_available_rest(as_percentage=True)
-        withdraw_surfaces = withdraws.aggregate(Sum("surface"))["surface__sum"] or 0
-        after_states_surfaces = record.after_states.all().aggregate(Sum("surface"))["surface__sum"] or withdraw_surfaces ## no division by zero
-        value = int(((after_states_surfaces - withdraw_surfaces) / after_states_surfaces) * 100)
         html = render_to_string("konova/custom_widgets/progressbar.html", {"value": value})
         return format_html(html)
 

compensation/views/eco_account_views.py

@@ -95,8 +95,7 @@ def open_view(request: HttpRequest, id: str):
     diff_states = abs(sum_before_states - sum_after_states)
 
     # Calculate rest of available surface for withdraws
-    withdraw_surfaces = acc.get_surface_withdraws() or 0
+    available = acc.get_available_rest(as_percentage=True)
-    available = int(((sum_after_states - withdraw_surfaces) / sum_after_states) * 100)
 
     context = {
         "obj": acc,
@@ -106,8 +105,8 @@ def open_view(request: HttpRequest, id: str):
         "after_states": after_states,
         "sum_before_states": sum_before_states,
         "sum_after_states": sum_after_states,
-        "available": available,
         "diff_states": diff_states,
+        "available": available,
         "is_default_member": in_group(_user, DEFAULT_GROUP),
         "is_zb_member": in_group(_user, ZB_GROUP),
         "is_ets_member": in_group(_user, ETS_GROUP),

intervention/forms.py

@@ -481,7 +481,7 @@ class NewWithdrawForm(BaseModalForm):
         self.is_intervention_initially = False
 
         # Add a placeholder for field 'surface' without having to define the whole widget above
-        self.fields["surface"].widget.attrs["placeholder"] = "0,00"
+        self.add_placeholder_for_field("surface", "0,00")
 
         # Check for Intervention or EcoAccount
         if isinstance(self.instance, Intervention):

konova/forms.py

@@ -71,6 +71,19 @@ class BaseForm(forms.Form):
         """
         self.fields[field].initial = val
 
+    def add_placeholder_for_field(self, field: str, val):
+        """
+        Adds a placeholder to a field after initialization
+
+        Args:
+            field (str): Field name
+            val (str): Placeholder
+
+        Returns:
+
+        """
+        self.fields[field].widget.attrs["placeholder"] = val
+
     def load_initial_data(self, form_data: dict, disabled_fields: list):
         """ Initializes form data from instance
 
@@ -369,7 +382,7 @@ class RecordForm(BaseModalForm):
 
         """
         super_val = super().is_valid()
-        msgs = self.instance.quality_check()
+        msgs = self.instance.quality_check() or []
         for msg in msgs:
             self.add_error(
                 "confirm",

konova/templatetags/ksp_filters.py

@@ -14,9 +14,9 @@ register = template.Library()
 
 # ServerMessageImportance bootstrap resolver
 SVI_BOOTSTRAP_CLS_MAP = {
-    ServerMessageImportance.DEFAULT.name: "",
+    ServerMessageImportance.DEFAULT: "",
-    ServerMessageImportance.WARNING.name: "alert-danger",
+    ServerMessageImportance.WARNING: "alert-danger",
-    ServerMessageImportance.INFO.name: "alert-info",
+    ServerMessageImportance.INFO: "alert-info",
 }