I have a search function on my site.
A user needs to be able to input multiple words that are then searched
for in multiple text fields. My issue is the following: my function
works very well for a single word or for the last word of a search as
the queryset gets overwritten. I understand what is going on. What I
don't get is what to do about it. I can concatenate querysets by
casting them explicitly as lists; However I can't cast back to a
queryset so that I can use generic list view. Any ideas? I know this
is such a common thing that it must have been done before by someone.
Appreciate any answers;
Hajo Smulders
Here is the view function:
def recipe_search(request, searchcriteria, sorter, page):
BASE_ROOT = determine_baseroot() # don't worry about this, this
sets the different environments I work in (IE: different URLs for
developemnt, QA and prod
searchcriteria = searchcriteria.split(" ") # This allows multiple
inputs
# I'm chceking one field (main_ingredients first; only if I don't get
any results do a do a full text search on the other fileds
for criterion in searchcriteria:
tempquery =
Recipe.objects.filter(main_ingredients__icontains=criterion)
if tempquery.count() < 1:
for criterion in searchcriteria:
tempquery =
Recipe.objects.filter(Q(ingredients__icontains=criterion) |
Q(description__icontains=criterion) |
Q(instructions__icontains=criterion))
recipequery = tempquery.order_by(sorter)
return list_detail.object_list(
request,
queryset = recipequery,
template_object_name = "recipe",
paginate_by = 20,
page=page,
allow_empty = True,
extra_context = {
"baseroot" : BASE_ROOT,
}
)
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