Import Timbres Admin Class

.gitignore

@@ -8,6 +8,7 @@ media
 
 # Backup files # 
 *.bak
+*.sql
 
 # If you are using PyCharm # 
 # User-specific stuff

Admin/settings.py

@@ -35,6 +35,7 @@ INSTALLED_APPS = [
     'allauth.socialaccount',
 
     'widget_tweaks',
+    'import_export',
 
     'Clientes',
     'IMMEX',

Admin/settingsLocal.py

@@ -35,6 +35,7 @@ INSTALLED_APPS = [
     'allauth.socialaccount',
 
     'widget_tweaks',
+    'import_export',
 
     'Clientes',
     'IMMEX',

Clientes/admin.py

@@ -1,18 +1,53 @@
 from django.contrib import admin
 from .models import Timbres, saldoModel, Clientes,ErroresTimbres
+from import_export import resources,fields
+from import_export.admin import ImportMixin
+from datetime import datetime
+
+from import_export import resources, fields
+from datetime import datetime
+from django.core.exceptions import ValidationError
+
+class TimbresCSV(resources.ModelResource):
+    created_at = fields.Field(column_name='created_at', attribute='created_at')
+
+    class Meta:
+        model = Timbres
+        fields = ['uuid', 'rfcc', 'rfcp', 'fecha', 'folio', 'serie', 'tipo', 'created_at', 'modo']
+        import_id_fields = ('uuid',)
+        use_bulk = True
+        
+    def clean_created_at(self, value):
+        try:
+            # Convertir el valor de 'created_at' a un objeto datetime
+            return datetime.strptime(value, '%Y-%m-%d %H:%M:%S')
+        except ValueError:
+            raise ValidationError("Formato de fecha incorrecto")
+    def save_instance(self, instance, is_create, using_transactions=True, dry_run=False):
+        created_at = instance.created_at
+        # super().after_save_instance(instance, using_transactions, dry_run)
+        # self.before_save_instance(instance, using_transactions, dry_run)        
+        if is_create:            
+            instance.save()
+            instance.created_at =created_at
+            instance.save()
         
 
-class TimbresAdmin(admin.ModelAdmin):
+
+@admin.register(Timbres)
+class TimbresAdmin(ImportMixin, admin.ModelAdmin):
     list_display=['uuid', 'rfcc', 'rfcp', 'fecha', 'folio', 'serie', 'tipo', 'modo', 'created_at']
+    resource_class = TimbresCSV
     list_filter=['modo','tipo']
     search_fields = ('uuid',)
 
 
+
 class ClientesAdmin(admin.ModelAdmin):
     list_display= ['RFC','Nombre','Activo','fecha_baja']
     list_filter =['RFC','Activo']
 
-admin.site.register(Timbres,TimbresAdmin)
+#admin.site.register(Timbres,TimbresAdmin)
 admin.site.register(saldoModel)
 admin.site.register(Clientes,ClientesAdmin)
 admin.site.register(ErroresTimbres)

Clientes/models.py

@@ -23,6 +23,7 @@ class Timbres(models.Model):
         ordering = ('-created_at',)
     
 
+
 class ErroresTimbres(models.Model):
     uuid = models.CharField(max_length=36)
     description = models.TextField()

IMMEX/views.py

@@ -127,7 +127,7 @@ class RegistroUsuarios(APIView):
                 return Response({'access':True, 'message': f'Registro exitoso, te enviamos un correo electronico "{user.email}" favor confirme su correo. '})
             else:           
             
-                return Response({'access':False, 'message': 'Error de validación', 'errors': serializer.errors})
+                return Response({'access':False, 'message': 'Error de validación', 'Error': serializer.errors})
         except Exception as E:
             
             return Response({'Error':f'Error al registro con datos del usuario {E}', 'isError':True, 'access':False})

req.txt

@@ -23,3 +23,4 @@ sqlparse==0.4.3
 tzdata==2022.6
 urllib3==1.26.13
 python-dotenv
+django-import-export