Add getAvailableFacilities()

- 사용가능한 시설물 없을 시 처리포함

@@ -27,7 +27,7 @@ import datetime
     # 성공시 : tuple형태로 반환 => ( (1 ,"steven123", 7, "전자정보대학", "136호", 10,  datetime.datetime(2018,12,5,12,0,0), datetime.datetime(2018,12,5,12,10,0), ), )
         # 순서 : reservations_id, user_id, facility_id, location, location_detail, capacity, start_time, end_time
 
-    # 실패시 : tuple형태로 반환 => ( ("SQL Error!", ), )
+    # 실패시 : result[0][0]="SQL Error!"인 tuple 반환 => ( ("SQL Error!", ), )
 # 사용예:
     # result = getReservations("khucse123")
     # reservation_start_time = result[0][3]
@@ -50,6 +50,7 @@ def getReservations(user_id):
         db.close()
 
 
+
 # deleteReservations - 대여현황삭제 함수
 # input:
     # int reservations_id
@@ -111,3 +112,49 @@ def addReservations(user_id, facility_id, start_time, end_time):
     finally:
         db.close()
 
+
+
+
+# getAvailableFacilities - 사용가능시설물 반환함수
+# input:
+    # string location
+    # int capacity
+    # datetime.datetime start_time
+    # datetime.datetime end_time
+# output:
+    # 성공시 : tuple형태로 반환 => ( (1, "전자정보대학", "B01호", 40, "강의실", "빔프로젝터", ), )
+        # 순서 : facility_id, location, location_detail, capacity, facility_type, equipment
+        # 사용가능한 시설물이 없을 시 : result[0][0]="NoAvailableFacilites"인 tuple 반환 => ( ("NoAvailableFacilites", ), )
+
+    # 실패시 : result[0][0]="SQL Error!"인 tuple 반환 => ( ("SQL Error!", ), )
+# 사용예:
+    # tstart = datetime.datetime(2018,12,5,12,11,12)
+    # tend = datetime.datetime(2018,12,5,14,20,12)
+    # result = getAvailableFacilities("전자정보대학", 40, tstart, tend)
+    # facility_id = result[0][0]
+
+def getAvailableFacilities(location, capacity, start_time, end_time):
+    try:
+        db = pymysql.connect(host='1.201.139.92', port=3306, user=user_info.user_id, password=user_info.user_passwd, db='FRS', charset='utf8')
+        curs = db.cursor()
+
+        curs.execute("select facility_id, location, location_detail, capacity, facility_type, equipment from facilities where (facility_id not in(select facility_id from reservations where (start_time<=%s AND %s<end_time) OR (start_time<%s AND %s<=end_time) OR (%s<=start_time AND end_time<=%s))) AND location=%s AND %s<=capacity;",
+        (start_time, start_time, end_time, end_time, start_time, end_time, location, capacity))
+        
+        result = curs.fetchall()
+        print("Fetch Success!")
+
+        # 사용 가능한 시설물이 있을 경우
+        if(len(result)!=0):
+            return result
+        # 사용 가능한 시설물이 없을 경우
+        else:
+            print("No Available Facilities")
+            return (("NoAvailableFacilites",),)
+
+    except:
+        print("SQL Error!")
+        return (("SQL Error!",),)
+
+    finally:
+        db.close()