first commit

helpers.py

@@ -0,0 +1,26 @@
+import jdatetime
+from rest_framework.pagination import PageNumberPagination
+from django.db.models import Q
+
+
+class CustomPagination(PageNumberPagination):
+    page_size = 10
+    page_size_query_param = 'page_size'
+    max_page_size = 100
+
+
+def convert_to_miladi(year=None, month=None, day=None):
+    date = jdatetime.datetime(year, month, day).togregorian()
+    return date
+
+
+def build_query(fields, value):
+    query = Q()
+    for field in fields:
+        query |= Q(**{f"{field}__icontains": value})
+    return query
+
+
+def build_calculation(queryset, column_name, aggregate_func):
+    result = queryset.aggregate(total=aggregate_func(column_name))
+    return result['total'] or 0