def get_model_schema(self, app, model):
"""
This method will called when user submit the form. From the form we will get, model, selected fields and data_format style
:param app: App name
:param model: Model object
:return: schema
"""
model_schema = {
'app': {
'name': model._meta.app_label,
'label': model._meta.app_config.verbose_name,
},
'name': model._meta.model_name,
'label': model._meta.verbose_name,
'components': []
}
for field in model._meta.get_fields():
# 排除不需要在前端构建form的field: id、反向关联field
if field.name == 'id':
continue
if isinstance(field, ForeignObjectRel):
logger.info("ForeignObjectRel", field)
continue
component = self.get_field_data(model, field)
# logger.info('component', component)
model_schema['components'].append(component)
# print('get_model_schema', model_schema)
return JsonResponse(model_schema)
def valid_after(sender, request, instance, **kwargs):
'''modelform校验之后存库前(这个钩子函数本身不区分request.method 请手动区分)
'''
logger.info('signals(valid_after)', )
def create_event(data):
'''创建事件
params:
data: dict, 创建event的元数据
return: int, 已创建event的id
'''
model_obj = lens._registry.get(models.Event)
response = model_obj._api('post', data)
# logger.info('Group valid_after response', response)
if response.get('code') == 1:
event_pk = response.get('data').get('pk')
return models.Event.objects.get(pk=event_pk)
else:
raise Exception(str(response.get('data')))
if request.method == 'PATCH':
# status = request.data.get('status', '')
# if instance.old_status == 0 and status == 1:
# logger.info('已通知', )
# elif instance.old_status == 1 and status == 2:
# logger.info('已处理', )
# 传入元数据中若有event的数据则生成事件并关联之
if hasattr(instance, 'event_dict'):
event_pk = create_event(instance.event_dict)
logger.info('event_pk', event_pk)
instance.event = event_pk
def patch_before(sender, request, instance, **kwargs):
'''PATCH方法下修改一条数据并且未经modelform校验之前
'''
logger.info('signals(patch_before)接收到了一条(%s)数据' % sender, )
# 审查notify_list合规性 若有notify_list 校验其保证格式为list
notify_list = request.data.get('notify_list', [])
if notify_list:
if type(notify_list) != list:
raise Exception('字段(notify_list)类型请确保是列表/数组(list/array)')
# 差集 比较是否有非法的通知方法名
invalid = set(notify_list) - set({'wecom_appchat', 'wecom_message'})
# logger.info('invalid', invalid)
if invalid:
raise Exception('参数(notify_list)中有非法的通知方法名(%s)' % str(invalid))
# 审查event合规性
if request.data.get('event'):
event_dict = request.data.pop('event')
if event_dict:
# 若前端仍有传值但已关联事件
if not (type(event_dict) == dict):
raise Exception('event必须为一个dict / object')
if instance.event:
raise Exception('当前告警聚合已经关联事件%s, 请勿再次关联' % instance.event)
# 将event的数据追加到instance 交由valid_after阶段处理
# 避开event这个属性名的原因当时未备注 现在忘记了
instance.event_dict = event_dict
def patch_save(sender, request, instance, **kwargs):
'''PATCH数据存库后
params:
instance: object, model_group对象
notify_list: list, 通知名称列表
'''
logger.info('signals(patch_save)', )
# 向前端Websocket推送数据的mq中推送数据
EmergencyMQ.send(sender)
# 校验发送企业通知的通知用户列表(dealer_list)
if hasattr(instance, 'event_dict'):
dealer_list = instance.event_dict.get('dealer_list', [])
else:
dealer_list = []
# logger.info('dealer_list', dealer_list)
# 获取通知名称列表并调用Notify
try:
notify_list = request.data.get('notify_list', [])
Notify.dispatch(instance, notify_list, dealer_list=dealer_list)
except Exception as e:
logger.exception('[调用Notify] - ', e)
raise Exception(e)
def post_before(sender, request, **kwargs):
'''新增数据前
'''
logger.info('signals(post_before)接收到了一条(%s)数据' % sender, )