def basic_search(request, template='search/search.html', load_all=True, form_class=ModelSearchForm, searchqueryset=None, context_class=RequestContext, extra_context=None, results_per_page=None, sort_by=[]):
"""
A more traditional view that also demonstrate an alternative
way to use Haystack.
Useful as an example of for basing heavily custom views off of.
Also has the benefit of thread-safety, which the ``SearchView`` class may
not be.
Template:: ``search/search.html``
Context::
* form
An instance of the ``form_class``. (default: ``ModelSearchForm``)
* page
The current page of search results.
* paginator
A paginator instance for the results.
* query
The query received by the form.
"""
query = ''
results = EmptySearchQuerySet()
try:
del request.session['selected_facets']
except:
pass
if request.GET.get('q'):
form = form_class(request.GET, searchqueryset=searchqueryset, load_all=load_all)
if form.is_valid():
query = form.cleaned_data['q']
results = form.search()
else:
form = form_class(searchqueryset=searchqueryset, load_all=load_all)
results = SearchQuerySet().all()
selected_facets = request.GET.getlist('selected_facets')
selected_date_facets = request.GET.getlist('selected_date_facets')
selected_facets = FacetSet(facet_string_list=selected_facets,
date_facet_string_list=selected_date_facets)
request.session['selected_facets'] = selected_facets
results = selected_facets.narrow(results)
if not sort_by == ['tmp']:
results = results.order_by(*sort_by)
results = results.order_by('-score')
if not template:
return results
count = results.count()
paginator = Paginator(results, results_per_page or RESULTS_PER_PAGE)
try:
page = paginator.page(int(request.GET.get('page', 1)))
except InvalidPage:
raise Http404("No such page of results!")
context = {
'form': form,
'page': page,
'paginator': paginator,
'query': query,
'suggestion': None,
'count': count,
}
if getattr(settings, 'HAYSTACK_INCLUDE_SPELLING', False):
context['suggestion'] = form.get_suggestion()
if extra_context:
context.update(extra_context)
return render_to_response(template, context, context_instance=context_class(request))
def catalogue_search(request, template='search/search.html', load_all=True,
form_class=CatalogueSearchForm, searchqueryset=None, extra_context=None,
results_per_page=None):
"""
A more traditional view that also demonstrate an alternative
way to use Haystack.
Useful as an example of for basing heavily custom views off of.
Also has the benefit of thread-safety, which the ``SearchView`` class may
not be.
Template:: ``search/search.html``
Context::
* form
An instance of the ``form_class``. (default: ``ModelSearchForm``)
* page
The current page of search results.
* paginator
A paginator instance for the results.
* query
The query received by the form.
"""
query = ''
results = EmptySearchQuerySet()
results_per_page = results_per_page or RESULTS_PER_PAGE
if request.GET.get('q'):
form = form_class(request.GET, searchqueryset=searchqueryset, load_all=load_all)
if form.is_valid():
query = form.cleaned_data['q']
results = form.search()
else:
form = form_class(searchqueryset=searchqueryset, load_all=load_all)
results = results.facet('categories').facet('country').facet('has_images').facet('global_region').facet('item_name')
if form.is_valid():
results = filter_with_facet(form, results, 'item_name', 'item_name')
results = filter_with_facet(form, results, 'category', 'categories')
results = filter_with_facet(form, results, 'global_region', 'global_region')
results = filter_with_facet(form, results, 'country', 'country')
if form.cleaned_data['person']:
sqs = SearchQuerySet()
for p in form.cleaned_data['person'].split():
term = sqs.query.clean(p)
results = results.narrow(u'people:"%s"' % term)
if form.cleaned_data['has_images'] == True:
results = results.narrow(u'has_images_exact:true')
facets = results.facet_counts()
if facets:
# Prepare the form with all the available facets
load_facets_into_form(form, facets, 'item_name', 'item_name')
load_facets_into_form(form, facets, 'category', 'categories')
load_facets_into_form(form, facets, 'global_region', 'global_region')
load_facets_into_form(form, facets, 'country', 'country')
# Append count of images into form
appended_count = False
for name, val in facets['fields']['has_images']:
if name == 'true':
form.fields['has_images'].label += ' (%s)' % val
appended_count = True
if not appended_count:
form.fields['has_images'].label += ' (0)'
results = results.order_by('registration_number')
paginator = Paginator(results, results_per_page)
try:
page = paginator.page(int(request.GET.get('page', 1)))
except InvalidPage:
raise Http404("No such page of results!")
context = {
'form': form,
'page': page,
'paginator': paginator,
'query': query,
'suggestion': None,
'facets': facets,
}
# Store query for paging through results on item detail page
if form.is_valid():
request.session['search_query'] = form.cleaned_data
# Access the first result to prevent ZeroDivisionError
if results:
results[0]
request.session['search_results'] = results
request.session['search_results_per_page'] = results_per_page
if getattr(settings, 'HAYSTACK_INCLUDE_SPELLING', False):
context['suggestion'] = form.get_suggestion()
if extra_context:
context.update(extra_context)
return render(request, template, context)
