I have a django app with a page that shows a data table of text strings populated from a model.
Each string is a website url. I need to be able to click on any one of these rows and have that url string written to a text file.
What I have so far results in a ‘reverse’ error as soon as the server tries to load the home page.

Here is the model:

class Environment(models.Model):
url = models.CharField(max_length = 250, null=True, 
blank=True)

def __str__(self):
    return self.url

Here is the view for the home page, which displays a list of urls populated from the model:

def home(request):
    envs = Environment.objects.all()
    f = open('environment.txt', 'r')
    file_content = f.read()
    f.close()
    context = {'title':'Home Page',
        'year':datetime.now().year, 'envs':envs, 'file_content':file_content}
    return render(request, 'app/home.html', context)

here is the view for the writing of the url text to the file:

def write_url_to_file(request, url):
    with open('environment.txt', 'w') as file:
        file.write(url)
        file.close()
    return redirect('app:home')

Here is the url pattern:

path(‘write-url/<str:url>/’, views.write_url_to_file, name=’write_url_to_file’),

Here is the template tag. The idea is to click a url to write it to a text file:

<table>
<tr>
    <th>Environment</th>
</tr>
{% for env in envs %}
<tr>
    <td><a href="{% url 'app:write_url_to_file' env.url %}">{{ env.url }}</a></td>
</tr>
{% endfor %}

I have tried various things such as changing the template tage to {% url ‘app:write_url_to_file’ url=env.url %}, but it still results in reverse error.

In the view I have also tried redirect(reverse(‘app:home’)) but still the same error on loading the home page.

Any advice would be greatly appreciated