62 lines
2.2 KiB
Python
62 lines
2.2 KiB
Python
from __future__ import absolute_import
|
|
|
|
from django.db import models
|
|
from django.db.models import Q
|
|
|
|
from documents.models import Document
|
|
|
|
from .literals import INCLUSION_AND, INCLUSION_OR
|
|
|
|
|
|
class SmartLinkManager(models.Manager):
|
|
def get_for(self, document, smart_link_obj=None):
|
|
errors = []
|
|
result = {}
|
|
|
|
smart_link_qs = self.model.objects.filter(enabled=True)
|
|
|
|
if smart_link_obj:
|
|
smart_link_qs = smart_link_qs.filter(pk=smart_link_obj.pk)
|
|
|
|
smart_link_qs = smart_link_qs.filter(document_types=document.document_type)
|
|
|
|
for smart_link in smart_link_qs:
|
|
total_query = Q()
|
|
for condition in smart_link.smartlinkcondition_set.filter(enabled=True):
|
|
value_query = Q(**{
|
|
'%s__%s' % (condition.foreign_document_data, condition.operator): eval(condition.expression, {'document': document})
|
|
})
|
|
if condition.negated:
|
|
query = ~value_query
|
|
else:
|
|
query = value_query
|
|
if condition.inclusion == INCLUSION_AND:
|
|
total_query &= query
|
|
elif condition.inclusion == INCLUSION_OR:
|
|
total_query |= query
|
|
|
|
if total_query:
|
|
try:
|
|
document_qs = Document.objects.filter(total_query)
|
|
result[smart_link] = {'documents': document_qs.order_by('date_added') or []}
|
|
except Exception as exception:
|
|
result[smart_link] = {'documents': []}
|
|
errors.append(exception)
|
|
else:
|
|
result[smart_link] = {'documents': []}
|
|
|
|
if smart_link.dynamic_title:
|
|
try:
|
|
result[smart_link]['title'] = eval(smart_link.dynamic_title, {'document': document})
|
|
except Exception as exception:
|
|
result[smart_link]['title'] = 'Error; %s' % exception
|
|
else:
|
|
result[smart_link]['title'] = smart_link.title
|
|
|
|
if smart_link_obj:
|
|
# Return a single group if documents even if there were
|
|
# many matches
|
|
return result[smart_link_obj], errors
|
|
|
|
return result, errors
|