regluit/core/lookups.py

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from selectable.base import ModelLookup
from selectable.registry import registry
from django.contrib.auth.models import User
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from django.db.models import Count
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from regluit.core.models import Work, PublisherName, Edition, Subject, EditionNote
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
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class PublisherNameLookup(ModelLookup):
model = PublisherName
search_fields = ('name__icontains',)
def create_item(self, value):
publisher_name, created = PublisherName.objects.get_or_create(name=value)
publisher_name.save()
return publisher_name
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class EditionLookup(ModelLookup):
model = Edition
search_fields = ('title__icontains',)
filters = {'ebooks__isnull': False, }
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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
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class SubjectLookup(ModelLookup):
model = Subject
search_fields = ('name__icontains',)
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def get_query(self, request, term):
return super(SubjectLookup, self).get_query( request, term).annotate(Count('works')).order_by('-works__count')
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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)
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registry.register(WorkLookup)
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registry.register(PublisherNameLookup)
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registry.register(EditionLookup)
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registry.register(SubjectLookup)
registry.register(EditionNoteLookup)