How to add a subtract option to a table in django

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I am making my first application with Django. The goal is to have a table rendered from my SQlite database that displays the current inventory of laboratory reagents. Once a reagent is taken out of storage a user will be able to hit a subtract button to subtract from the current inventory. Currently I have a table that displays the reagent name and quantity. I would like to add a column to the table that has a subtract button that will subtract one from the corresponding reagents current inventory.

Can anyone please give me some suggestions on how to implement a subtract button? Any help would be much appreciated.

What I have tried:

Python

<pre>models.py

class Reagentquant(models.Model):

    Name_Of_Reagent= models.TextField()
    Reagent_Quantity= models.TextField()

tables.py

class ReagentquantTable(tables.Table):
    class Meta:
        model = Reagentquant
        template_name = 'django_tables2/bootstrap4.html'

views.py

def reagentquant(request):
    table = ReagentquantTable(Reagentquant.objects.all())
    RequestConfig(request).configure(table)
    return render(request, 'inventory/quant.html', {'table': table})

template 

{% load render_table from django_tables2 %}
<!doctype html>
<html>
    <head>
        <title>Inventory Tracker</title>
        <link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.7/css/bootstrap.min.css" />
    </head>
    <body>
        {% render_table table %}
    </body>
</html>

Posted 26-Apr-19 4:12am

Brandon Cavinee

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