spejstore/storage/views.py

139 lines
4.2 KiB
Python

import shlex
from django.shortcuts import render, get_object_or_404, redirect
from django.contrib.postgres.search import SearchVector, TrigramSimilarity
from django.http import Http404, JsonResponse
from django.contrib.admin.models import LogEntry
from django_select2.views import AutoResponseView
from django.db import connection
from django.db.models import Q
from storage.models import Item, Label
def apply_smart_search(query, objects):
general_term = []
filters = {}
for prop in shlex.split(query):
if ':' not in prop:
general_term.append(prop)
else:
key, value = prop.split(':', 1)
if key in ['owner', 'taken_by']:
filters[key + '__username'] = value
elif hasattr(Item, key):
filters[key + '__search'] = value
elif key == 'ancestor':
objects = Item.objects.get(pk=value).get_children()
elif key == 'prop' or value:
if key == 'prop':
key, _, value = value.partition(':')
if not value:
filters['props__isnull'] = {key: False}
else:
filters['props__contains'] = {key: value}
else:
# "Whatever:"
general_term.append(prop)
objects = objects.filter(**filters)
if not general_term:
return objects
general_term = ' '.join(general_term)
objects = objects.annotate(
search=SearchVector('name', 'description', 'props', config='simple'),
similarity=TrigramSimilarity('name', general_term)
).filter(
Q(similarity__gte=0.15) | Q(search__contains=general_term)
).order_by('-similarity')
return objects
def index(request):
return render(request, 'index.html')
def search(request):
query = request.GET.get('q', '')
results = apply_smart_search(query, Item.objects).all()
if results and (len(results) == 1 or getattr(results[0], 'similarity', 0) == 1):
return redirect(results[0])
return render(request, 'results.html', {
'query': query,
'results': results,
})
def item_display(request, pk):
if not pk:
return render(request, 'results.html', {
'results': Item.get_roots()
})
item = get_object_or_404(Item, pk=pk)
return render(request, 'item.html', {
'item': item,
'categories': item.categories.all(),
'props': sorted(item.props.items()),
'images': item.images.all(),
'labels': item.labels.all(),
'history': LogEntry.objects.filter(object_id=item.pk),
'ancestors': item.get_ancestors(),
'children': item.get_children().prefetch_related('categories'),
})
def label_lookup(request, pk):
label = get_object_or_404(Label, pk=pk)
return redirect(label.item)
class ItemSelectView(AutoResponseView):
def get(self, request, *args, **kwargs):
self.widget = self.get_widget_or_404()
self.term = kwargs.get('term', request.GET.get('term', ''))
self.object_list = self.get_queryset()
context = self.get_context_data()
return JsonResponse({
'results': [
{
'text': obj.name,
'path': [o.name for o in obj.get_ancestors()],
'id': obj.pk,
}
for obj in context['object_list']
],
'more': context['page_obj'].has_next()
})
class PropSelectView(AutoResponseView):
def get(self, request, *args, **kwargs):
# self.widget = self.get_widget_or_404()
self.term = kwargs.get('term', request.GET.get('term', ''))
# context = self.get_context_data()
with connection.cursor() as c:
c.execute("""
select e from (
select skeys(props) as e, count(skeys(props)) as e_count
from storage_item group by e order by e_count desc) as xD
where e like %s limit 10;""", ['%' + self.term + '%'])
props = c.fetchall()
return JsonResponse({
'results': [
{
'text': p,
'id': p,
}
for p in props
],
})