regluit/core/lookups.py

90 lines
2.7 KiB
Python

from selectable.base import ModelLookup
from selectable.registry import registry
from django.contrib.auth.models import User
from django.db.models import Count
from regluit.core.models import Work, PublisherName, Edition, Subject, EditionNote, Ebook
from regluit.utils.text import sanitize_line
class OwnerLookup(ModelLookup):
model = User
search_fields = ('username__icontains',)
class WorkLookup(ModelLookup):
model = Work
search_fields = ('title__istartswith',)
def get_item_label(self, item):
return "%s (%s, %s)"%(item.title, item.id, item.language)
def get_item_value(self, item):
return "%s (%s, %s)"%(item.title, item.id, item.language)
def get_query(self, request, term):
results = super(WorkLookup, self).get_query(request, term)
return results
class PublisherNameLookup(ModelLookup):
model = PublisherName
search_fields = ('name__icontains',)
def create_item(self, value):
value = sanitize_line(value)
publisher_name, created = PublisherName.objects.get_or_create(name=value)
publisher_name.save()
return publisher_name
class EbookLookup(ModelLookup):
model = Ebook
search_fields = ('edition__title__icontains',)
filters = {'edition__isnull': False, }
def get_item(self, value):
item = None
if value:
try:
item = Ebook.objects.get(pk=value)
except (ValueError, Ebook.DoesNotExist):
item = None
return item
class EditionLookup(ModelLookup):
model = Edition
search_fields = ('title__icontains',)
filters = {'ebooks__isnull': False, }
def get_query(self, request, term):
return super(EditionLookup, self).get_query(request, term).distinct()
def get_item(self, value):
item = None
if value:
try:
item = Edition.objects.get(pk=value)
except (ValueError, Edition.DoesNotExist):
item = None
return item
class SubjectLookup(ModelLookup):
model = Subject
search_fields = ('name__icontains',)
def get_query(self, request, term):
return super(SubjectLookup, self).get_query(
request, term
).annotate(Count('works')).order_by('-works__count')
class EditionNoteLookup(ModelLookup):
model = EditionNote
search_fields = ('note__icontains',)
def create_item(self, value):
new_note, created = EditionNote.objects.get_or_create(note=value)
new_note.save()
return new_note
registry.register(OwnerLookup)
registry.register(WorkLookup)
registry.register(PublisherNameLookup)
registry.register(EditionLookup)
registry.register(SubjectLookup)
registry.register(EditionNoteLookup)
registry.register(EbookLookup)