Django Concept
Parameters in the URL are very useful for simple activates like search , filter and sorting. Even though in Django this can be managed using URL config , the simplest option would be to read the URL parameters in a GET call and process the requirements. In this article explains how sort can be achieved using URL parameters in a GET call.
Sorting columns in a table is a simple requirement in most of the projects. This can be achieved using URL config in Django using
from django.urls import path
from . import views
urlpatterns = [
path('articles/<sort_key>/', views.article_detail),
]The other option would be read the GET parameter in the view.
def consolidated_portfolio_analysis(request):
z = cache.get('sort_order')
zsort = request.GET.get('sort_by','ztrades')
if not(z) :
cache.set('sort_order','D',900)
zsort = '-' + zsort
elif z == 'D':
cache.set('sort_order','A',900)
zsort = zsort
elif z == 'A':
zsort = '-' + zsort
cache.set('sort_order','D',900)
zresut = articles.objects.all().order_by(zsort,)
return render (request,'equity/Equity_Report_Consolidated.html',{'obj_equity':zresult})I have included a DB Cache object to capture the sorting order. So when the user clicks the column multiple times , the query set is sorted in ascending and descending alternatively.
The url would look like
http://192.16x.xx.xx:8000/equity/consolidated_portfolio_analysis/?sort_by=zxirr_min
sort_by parameter is extracted in the view of the GET call and processed accordingly.
The syntax would be
request.GET.get('<key in url>','<default value>')