How to get object by name in views.py django

Question

How to get object in views.py using name not by id.

def StockSummaryPage(request, title):
    stocks_data = get_object_or_404(Stock, string=title)
    return render(request, 'stocks/stock_summary_page.html', {'stocks_data':stocks_data})

This is my views.py and in

stocks_data = get_object_or_404(Stock, string=title)

we use pk= stock_id but i want to do it by title. So help me

here's Django docshow to make DB queries, more specifically you'll need to use method called filter() (eg. Stock.objects.filter(string=title) — yedpodtrzitko
– yedpodtrzitko, Commented Sep 16, 2020 at 8:34
@ArakkalAbu string=title is not working, we can write title=title — Huzaifa Zahoor
– Huzaifa Zahoor, Commented Sep 16, 2020 at 14:30

Anna M. · Accepted Answer · 2020-09-16 09:11:19Z

2

You can get an object by any of its model fields.

Assuming you have a field called title in your Stock model and assuming you are passing the title to your view.

stocks_data = get_object_or_404(Stock, title=title)

Please be aware if you are getting an object by a field that is not unique you will get an error: get() returned more than one Model -- it returned 54!
In this case use get_list_or_404(Stock, title=title) which will return the result of .filter(). Django Shortcut Functions: get_list_or_404()

edited Sep 16, 2020 at 9:11

answered Sep 16, 2020 at 8:40

Anna M.

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user14285208 · Accepted Answer · 2020-09-16 08:45:29Z

1

Here we assume that field as title.

1st method: using filter()

def StockSummaryPage(request, title):
    stocks_data = Stock.objects.filter(title=title)
    return render(request, 'stocks/stock_summary_page.html', {'stocks_data':stocks_data})

2nd method: using get_object_or_404

def StockSummaryPage(request, title):
    stocks_data = get_object_or_404(Stock, title=title)
    return render(request, 'stocks/stock_summary_page.html', {'stocks_data':stocks_data})

answered Sep 16, 2020 at 8:45

user14285208

Comments

Huzaifa Zahoor · Accepted Answer · 2020-09-16 08:56:37Z

1

This can solve in another way also. I just found this way

def StockSummaryPage(request, title):
        context = {}
        # add the dictionary during initialization
        context["data"] = Stock.objects.get(title=title)

        return render(request, "stocks/stock_summary_page.html", context)

then you can get data in html using

data

keyword like

data.title
data.name

etc

answered Sep 16, 2020 at 8:56

Huzaifa Zahoor

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