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# -*- coding: utf-8 -*-
from django.db.models.signals import pre_save, m2m_changed
from django.dispatch import receiver
from models import SciBlog, BlogAnnotation, ResultContent, Reference, BaseLine,\
ClinicCondition, KnowledgePiece, Guideline, EndPoint
import re
def mark_keywords_in_textfield(model, fields, related_name='NONE'):
u'''
fields:需要处理的field名称
handler:消息处理函数，对instance中的fields进行关键词过滤
related_name:model实例在BlogAnnotation中的反向关系名称,如文章注释通过blogs属性关联到Sciblog
'''
@receiver(pre_save, sender = model, weak=False)
def handler(sender, **kwargs):
instance = kwargs['instance']
for annotation in BlogAnnotation.objects.propernouns():
keyword = annotation.firstkeyword()
for field in set(fields):
content = getattr(instance, field)
if keyword not in content:
continue
try:
relate = getattr(annotation, related_name)
relate.add(instance)
annotation.save()
except:
pass
mark_keywords_in_textfield(SciBlog, ['abstract_result', 'method', 'aim',
'abstractAE', 'treatment_content',
'endpoint_content', 'detectionAssay'], 'blogs')
mark_keywords_in_textfield(ResultContent, ['abstract', 'content', 'card_content'])
mark_keywords_in_textfield(Reference, ['description'])
mark_keywords_in_textfield(KnowledgePiece, ['content'])
mark_keywords_in_textfield(Guideline, ['content'])
mark_keywords_in_textfield(EndPoint, ['content'])
mark_keywords_in_textfield(ClinicCondition, ['content'])
mark_keywords_in_textfield(BaseLine, ['content'])
def mark_keywords_in_m2mfields(sender, **kwargs):
if kwargs['action'] != 'pre_add':
return
blog = kwargs['instance']
model = kwargs['model']
objs = model.objects.filter(pk__in = kwargs.get('pk_set') or [])
for annotation in BlogAnnotation.objects.propernouns():
keyword = annotation.firstkeyword()
for obj in objs:
if keyword not in obj.content:
continue
annotation.blogs.add(blog)
annotation.save()
return
for m2m in ['konwledge_piece', 'baseline', 'endpoints', 'clinic_conditions']:
m2m_changed.connect(mark_keywords_in_m2mfields, sender=getattr(SciBlog, m2m).through)
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