距离更新

home/unit.py

+import redis
+import logging
+from django.conf import settings
+from django.shortcuts import render
+from math import radians, cos, sin, asin, sqrt
+from django.http import HttpResponse,JsonResponse
+import random
+import requests
+import ipdb
+from gm_rpcd.all import bind,RPCDFaultException
+
+r = redis.Redis(host=settings.REDIS_HOST, port=settings.REDIS_PORT,db=settings.REDIS_DB,password=settings.REDIS_PASSWORD,decode_responses=True)
+rpc_client =settings.RPC_INVOKER
+
+
+def refresh_cache_locations():
+	'''刷新缓存中医院的数据'''
+	print("地理位置信息过期---,重新拿取---")
+	locations = rpc_client['api/hospital/location']().unwrap()
+
+	cache_key="hospital_location"
+	cache_diuration=24*60*60
+	#将地理位置信息加入redis缓存
+	for item in locations:
+		lat=item.get("baidu_loc_lat") if item.get("baidu_loc_lat") else item.get("google_loc_lat")
+		lng=item.get("baidu_loc_lng") if item.get("baidu_loc_lng") else item.get("google_loc_lng")
+
+		try:
+			r.geoadd(cache_key,float(lng),float(lat),item.get("id"))
+		except Exception as e:
+			print(e)
+			pass
+	r.expire(cache_key,cache_diuration)
\ No newline at end of file

home/views.py

@@ -6,8 +6,11 @@ from math import radians, cos, sin, asin, sqrt
 from django.http import HttpResponse,JsonResponse
 import random
 import requests
+import uuid
 import ipdb
 from gm_rpcd.all import bind,RPCDFaultException
+
+from .unit import refresh_cache_locations
 #from rpc.decorators import bind_context, bind
 
 r = redis.Redis(host=settings.REDIS_HOST, port=settings.REDIS_PORT,db=settings.REDIS_DB,password=settings.REDIS_PASSWORD,decode_responses=True)
@@ -27,23 +30,9 @@ def nearly_hospitals(q_lat,q_lng,radis=500,unit="km",count=20):
 	#q_lat,q_lng=40.001930265172,116.4871890387796
 	#数据缓存时间,现在为24小时
 	cache_key="hospital_location"
-	cache_diuration=24*60*60
 	
-	#ipdb.set_trace()
 	if not r.exists(cache_key):
-		print("地理位置信息过期---,重新拿取---")
-		locations = rpc_client['api/hospital/location']().unwrap()
-		#将地理位置信息加入redis缓存
-		for item in locations:
-			lat=item.get("baidu_loc_lat") if item.get("baidu_loc_lat") else item.get("google_loc_lat")
-			lng=item.get("baidu_loc_lng") if item.get("baidu_loc_lng") else item.get("google_loc_lng")
-
-			try:
-				r.geoadd(cache_key,float(lng),float(lat),item.get("id"))
-			except Exception as e:
-				print(e)
-				pass
-		r.expire(cache_key,cache_diuration)
+		refresh_cache_locations()
 
 	result=r.georadius(cache_key,q_lng,q_lat,radis,unit,withdist=True,count=20)
 
@@ -54,6 +43,39 @@ def nearly_hospitals(q_lat,q_lng,radis=500,unit="km",count=20):
 	}
 	return data
 
+@bind("geoserver/home/hospitals_distance")
+def specify_hospitals_distance(q_lng,q_lat,hospital_ids):
+	'''
+		到指定医院距离排序
+	'''
+	cache_key="hospital_location"
+
+	#锁定临时的key
+	result=[]
+	temp_key="hospital_location_temp"
+	lock_key="hospital_location_lock"
+	with r.lock(lock_key, blocking_timeout=15) as lock:
+		r.geoadd(cache_key,float(q_lng),float(q_lat),temp_key)
+		for item in hospital_ids:
+			distance=r.geodist(cache_key,temp_key,item)
+
+			if not distance:
+				distance=0
+
+			result.append({"id":item,"distance":distance})
+	#排序
+	result=sorted(result,key=lambda x:x.get("distance"))
+
+	data={
+		"result":True,
+		"data":result,
+		"message":""
+	}
+	return data
+
+
+
+
 
 def get_location_by_address(request,address):
     """由地址获获取经纬度坐标