sum in admin list view

apps/pg/admin.py

@@ -1,5 +1,11 @@
+import io
+
+import jdatetime
+import xlsxwriter
 from django.contrib import admin
 from django.db.models import Sum
+from django.http import HttpResponse
+from django.utils import timezone
 
 from .models import PaymentRequest, PNA, Fake
 
@@ -10,10 +16,47 @@ class PNAAdmin(admin.ModelAdmin):
     search_fields = ['pna_status_code', 'pna_status_message']
 
 
+@admin.action(description="export exel")
+def export_exel(modeladmin, request, queryset):
+    output = io.BytesIO()
+    workbook = xlsxwriter.Workbook(output, options={"remove_timezone": True})
+    worksheet = workbook.add_worksheet()
+
+    for col, header in enumerate([]):
+        worksheet.write(0, col, header)
+
+    for row, payment_request in enumerate(queryset, 1):
+        worksheet.write(row, 0, payment_request.amount)
+        worksheet.write(row, 1, str(payment_request.pk))
+        worksheet.write(row, 2, str(payment_request.user.pk))
+        worksheet.write(row, 3, payment_request.jajali_datetime)
+        worksheet.write(row, 4, payment_request.gateway)
+        worksheet.write(row, 5, payment_request.get_state_display())
+
+    workbook.close()
+
+    # create a response
+    response = HttpResponse(content_type='application/vnd.ms-excel')
+
+    # tell the browser what the file is named
+    file_name = jdatetime.date.fromgregorian(date=timezone.now(), locale='fa_IR').strftime("%Y/%m/%d")
+    response['Content-Disposition'] = f'attachment;filename="{file_name}.xlsx"'
+
+    # put the spreadsheet data into the response
+    response.write(output.getvalue())
+
+    # return the response
+    return response
+
+
+
+
 class PaymentRequestAdmin(admin.ModelAdmin):
     list_display = ['state', 'uuid', 'splited_amount', 'user_id', 'jajali_datetime', 'application', 'gateway']
     search_fields = ['application__uuid','application__client_id', 'amount', 'user__uuid']
     list_filter = ['application', 'state', 'gateway']
+    actions = [export_exel]
+
 
     def changelist_view(self, request, extra_context=None):
         extra_context = extra_context or {}

requirements.in

@@ -16,4 +16,6 @@ django-oauth-toolkit
 redis
 celery
 httpx
-django-redis
+django-redis
+xlsxwriter
+xlrd

requirements.txt

@@ -175,6 +175,10 @@ vine==5.1.0
     #   kombu
 wcwidth==0.2.13
     # via prompt-toolkit
+xlrd==2.0.2
+    # via -r requirements.in
+xlsxwriter==3.2.5
+    # via -r requirements.in
 zope-event==5.0
     # via gevent
 zope-interface==7.2