django not getting the online parameter when submitting a form

Question

I submit a form with two inputs to search a table. My code doesn't get the value of 'namequery' instead of displaying all data in table. What did I do wrong here? Thanks for any help! The url is http://..../chinook/search/?namequery=rand&affquery=

search.html

  <h3 class="labs-background-title">Search results for <em id="search-name">{{ namequery }}</em>:</h3>
  {% if object_list %}
    {% for obj in object_list %}
      {{ obj.lname }} <br />
      {{ obj.clustering }} <br />
  {% endfor %}
  {% else %}
    <h3>No matches found.</h3>
  {% endif %}

views.py

class SearchView(generic.ListView):
model = Pitable 
template_name = 'chinook/search.html'


def get_queryset(self):
    try:
        namequery = self.kwargs['namequery']
    except:
        namequery = ''
    if (namequery != ''):
        object_list = self.model.objects.filter(lname = namequery)
    else:
        object_list = self.model.objects.all()
    return object_list

The return page display all data, shows the {{namequery}} is empty. Thanks!

Alasdair · Accepted Answer · 2016-09-29 17:42:48Z

2

There are quite a few things wrong here.

Firstly, 'namequery' is not a URL kwarg, it is a GET query parameter. You need to get it from self.request['namequery'].

Secondly, never ever use a blank except. The only exception that could possibly happen there is KeyError, so catch that. But a better way of writing all four lines would be:

namequery = self.request.GET.get('namequery')

Thirdly, to display the value of namequery in the template you need to add it to the context data.

def get_context_data(self, **kwargs):
    context = super(SearchView, self).get_context_data(**kwargs)
    context['namequery'] = self.request.GET.get('namequery')
    return context

edited Sep 29, 2016 at 17:42

Alasdair

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answered Sep 29, 2016 at 16:57

Daniel Roseman

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