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#!/usr/bin/env python
# -*- coding: utf-8 -*-
import logging
import traceback
from libs.es import ESPerform
class TopicUtils(object):
@classmethod
def get_related_user_info(cls, user_id, offset=0, size=10):
"""
:remark:获取指定用户相关用户列表
:param user_id:
:param offset:
:param size:
:return:
"""
try:
q = dict()
q["query"] = {
"user_id": user_id
}
q["_souce"] = ["tag_list","attention_user_id_list", "pick_user_id_list", "same_group_user_id_list"]
result_dict = ESPerform.get_search_results(ESPerform.get_cli(), "user", q, offset, size)
return result_dict
except:
logging.error("catch exception,err_msg:%s" % traceback.format_exc())
return None
@classmethod
def analyze_related_user_id_list(cls,related_user_id_list):
"""
:remark:获取指定用户关联的 用户列表
:param related_user_id_list:
:return:
"""
try:
chinese_user_id_list = list()
japan_user_id_list = list()
korea_user_id_list = list()
for item in related_user_id_list:
if item["country_id"] == 0:
chinese_user_id_list.append(item["user_id"])
elif item["country_id"] == 1:
japan_user_id_list.append(item["user_id"])
elif item["country_id"] == 2:
korea_user_id_list.append(item["user_id"])
return (chinese_user_id_list,japan_user_id_list,korea_user_id_list)
except:
logging.error("catch exception,err_msg:%s" % traceback.format_exc())
return ([],[],[])
@classmethod
def refresh_redis_hash_data(cls, redis_cli,redis_key,redis_data_dict):
try:
redis_cli.hmset(redis_key, redis_data_dict)
return True
except:
logging.error("catch exception,err_msg:%s" % traceback.format_exc())
return False
@classmethod
def get_recommend_topic_ids(cls,user_id,offset,size,is_first_time,group_topic_ids_index,not_group_topic_ids_index,query=None):
"""
:需增加打散逻辑
:remark:获取首页推荐帖子列表
:param user_id:
:param offset:
:param size:
:param is_first_time:
:param group_topic_ids_index:
:param not_group_topic_ids_index:
:return:
"""
try:
#重写offset,size
size = 1000
if is_first_time:
offset=0
else:
if group_topic_ids_index>0:
offset = 1000 * group_topic_ids_index
else:
offset = 1000 * not_group_topic_ids_index
result_dict = TopicUtils.get_related_user_info(user_id, 0, 1)
if len(result_dict["hits"]) == 0:
logging.error("not find user_id:%d in es!" % int(user_id))
return {"recommend_topic_ids": []}
attention_user_info_list = result_dict["hits"][0]["attention_user_id_list"]
(attention_chinese_user_id_list, attention_japan_user_id_list,
attention_korea_user_id_list) = TopicUtils.analyze_related_user_id_list(
related_user_id_list=attention_user_info_list)
pick_user_info_list = result_dict["hits"][0]["pick_user_id_list"]
(pick_chinese_user_id_list, pick_japan_user_id_list,
pick_korea_user_id_list) = TopicUtils.analyze_related_user_id_list(pick_user_info_list)
same_group_user_info_list = result_dict["hits"][0]["same_group_user_id_list"]
(same_group_chinese_user_id_list, same_group_japan_user_id_list,
same_group_korea_user_id_list) = TopicUtils.analyze_related_user_id_list(same_group_user_info_list)
user_tag_list = result_dict["hits"][0]["tag_list"]
q = dict()
q["filter"] = {
"range": {"content_level": {"gte": 3, "lte": 5}}
}
if not is_first_time:
if group_topic_ids_index:
q["filter"]["range"]["group_id"] = {
"gt": 0
}
else:
q["filter"]["range"]["group_id"] = {
"lt": 0
}
functions_list = [
{
"filter": {"match": {
"user_id": attention_chinese_user_id_list + attention_japan_user_id_list + attention_korea_user_id_list}},
"weight": 5,
},
{
"filter": {"match": {
"user_id": pick_chinese_user_id_list + pick_japan_user_id_list + pick_korea_user_id_list}},
"weight": 3
},
{
"filter": {"match": {
"user_id": same_group_chinese_user_id_list + same_group_japan_user_id_list + same_group_korea_user_id_list}},
"weight": 2
}
]
query_function_score = {
"query": {
"match": {
"tag_list": user_tag_list
}
},
"score_mode": "sum",
"boost_mode": "sum",
"functions": functions_list
}
q["query"] = {
"function_score": query_function_score
}
if query is not None:#搜索帖子
multi_fields = {
'description': 2,
'name': 4,
}
query_fields = ['^'.join((k, str(v))) for (k, v) in multi_fields.items()]
multi_match = {
'query': query,
'type': 'cross_fields',
'operator': 'and',
'fields': query_fields,
}
q["query"]["bool"] = {
"should": [
{'multi_match': multi_match}
],
"minimum_should_match": 1
}
q["_source"] = {
"include":["id","group_id"]
}
logging.info("duan add,es query:%s" % str(q).encode("utf-8"))
result_dict = ESPerform.get_search_results(ESPerform.get_cli(), sub_index_name="topic", query_body=q,
offset=offset, size=size)
group_topic_ids = list()
not_group_topic_ids = list()
for item in result_dict["hits"]:
if item["group_id"] > 0:
group_topic_ids.append(item["id"])
else:
not_group_topic_ids.append(item["id"])
return (group_topic_ids,not_group_topic_ids)
except:
logging.error("catch exception,err_msg:%s" % traceback.format_exc())
return ([],[])