formatierung

app/vkk/workhours/accounting/projects/project/export/receipts/views.py

-import json, csv
+import json, csv, datetime
 from django.utils.translation import gettext_lazy as _
 from django.http import JsonResponse, HttpResponse
 from django.views.generic import FormView
@@ -91,7 +91,7 @@ class ReceiptTemplateSelectionView(FormView, AccountantRequiredMixin):
         # here be conversion
         table = [
             [
-                self._data_cell_calculation(cell, receipt, data) for cell in row
+                _data_cell_calculation(cell, receipt, data) for cell in row
             ] for row in table_template
         ]
         
@@ -99,38 +99,48 @@ class ReceiptTemplateSelectionView(FormView, AccountantRequiredMixin):
         writer.writerows(table)
 
         return response
-    
-    def _data_cell_calculation(self, template, receipt, data):
-        """This functions retrieves the required data point according to the template"""
-        method = template.get("method")
-        if method is None:
-            return ""
-        elif method == "FIXED":
-            return template.get("value")
-        elif method == "GENERATED":
-            value = template.get("value")
-            args = value.split(" ")
-            out = []
-            for arg in args:
-                parts = arg.split(".")
-                if parts[0] == "data":
-                    lookup = data
-                    for part in parts[1:]:
-                        lookup = lookup.get(part)
-                        if lookup is None:
-                            break
-                    if lookup is not None:
-                        out.append(str(lookup))
-                elif parts[0] in vars(receipt):
-                    lookup = vars(receipt)
-                    for part in parts:
-                        lookup = lookup.get(part)
-                        if lookup is None:
-                            break
-                    if lookup is not None:
-                        out.append(str(lookup))
-                else:
-                    out.append(str(arg))
-            return " ".join(out)
-        else:
-            return ""
+
+def _data_cell_calculation(template, receipt, data):
+    """This functions retrieves the required data point according to the template"""
+    method = template.get("method")
+    if method is None:
+        return ""
+    elif method == "FIXED":
+        return template.get("value")
+    elif method == "GENERATED":
+        value = template.get("value")
+        args = value.split(" ")
+        out = []
+        for arg in args:
+            parts = arg.split(".")
+            if parts[0] == "data":
+                lookup = data
+                for part in parts[1:]:
+                    lookup = lookup.get(part)
+                    if lookup is None:
+                        break
+                if lookup is not None:
+                    out.append(str(_format(lookup)))
+            elif parts[0] in vars(receipt):
+                lookup = vars(receipt)
+                for part in parts:
+                    lookup = lookup.get(part)
+                    if lookup is None:
+                        break
+                if lookup is not None:
+                    out.append(str(_format(lookup)))
+            else:
+                out.append(str(arg))
+        return " ".join(out)
+    else:
+        return ""
+
+def _format(value):
+    if isinstance(value, datetime.date):
+        return value.strftime("%d.%m.%Y")
+    elif isinstance(value, str):
+        return 0 if value == "0.00" else value
+    elif isinstance(value, bool):
+        return _("Ja") if value else _("Nein")
+    else:
+        return value