using get or post to pass argument to django view - django

Question

In my django app ,I need to call a view with an argument named 'year'. Then in the template,I created a form and a dropdown list using a list of year names,At this point,I am confused as to how the view should be invoked.
The view is named 'create_report_for_data_of_the_year'.It expects a year argument.
ie,
http://127.0.0.1:8000/myapp/reports/2011
I tried to write the template as shown below.
<li id="yearlydataplots" class="report">
<form action="create_report_for_data_of_the_year" >
<select name="year" id="year">
{% for anyear in years %}
<option value={{anyear}} > {{anyear}}</option>
{% endfor %}
</select>
<input type="submit" value="Plot for entries of the year"/>
</form>
</li>
However,when the submit button is clicked,the browser goes to
http://127.0.0.1:8000/myapp/reports/create_report_for_data_of_the_year?year=2006
which causes a 404.
I changed method="post", and clicking submit goes to
http://127.0.0.1:8000/myapp/reports/create_report_for_data_of_the_year
which again causes 404
I know,I am missing something very basic :-)..If someone can kindly point it out,it would be nice
thanks in advance,
mark
def create_report_for_data_of_the_year(request,year,page_title,template_name):
dataset=MyDataModel.objects.filter(today__year=year,creator=request.user)
#today is a field in MyDataModel and is a datetime.datetime
map = create_map_of_names_and_values(dataset)
basefilename = "plotofdataforyear%s"%year
page_title = page_title+" "+year
imgfilename= create_plot(map,basefilename)
report_data={'basefilename':basefilename,'plot_image':imgfilename,'year':year,'page_title':page_title}
report_data["name_value_dict"]=map
req_context=RequestContext(request,context)
return render_to_response(template_name,req_context)
and url mapping is
...
url(r'^reports/(?P<year>\d{4})/$','myapp.views.create_report_for_data_of_the_year',
{
'template_name':'myapp/report_for_data_of_the_year.html',
'page_title':'report for data in the Year'
},name='report_data_for_year' ),
...

Answer 1

You need to do a redirect to desired page with JS. Or you can accept a year as a get paramener with year = request.GET.get('year').