def get_position(table, range='world', country_code=None):
s = Session()
if range == 'world':
#返回世界范围的店铺位置信息
result = s.query(distinct(table.store_name), table.city,
table.longitude, table.latitude).all()
result_list = src.controller.no_frameobj_helper.row_into_list(result)
return result_list
elif range == 'country' and src.controller.no_frameobj_helper.check_if_valid(
country_code):
#返回某个国家的店铺位置信息
city_count = func.count(table.city)
store_city_count = s.query(
table.city,
city_count).filter(table.country == country_code).group_by(
table.city).order_by(city_count.desc()).all()
store_position = s.query(table.store_name,table.city,table.longitude,table.latitude).filter(table.country==country_code)\
.group_by(table.store_name).all()
count = src.controller.no_frameobj_helper.row_into_list(
store_city_count)
position = src.controller.no_frameobj_helper.row_into_list(
store_position)
return count, position
else:
print("Invalid parameters!")
s.close()
def get_country_store_info(table, country_code):
'''
获得指定城市的基本信息
:param table:
:param country_code:
:return:
'''
if src.controller.no_frameobj_helper.check_if_valid(country_code):
s = Session()
basic = s.query(
table.city, table.store_number, table.store_name,
table.street_address).filter(table.country == country_code).all()
count = s.query(func.count(
table.store_name)).filter(table.country == country_code).all()
for row in count:
count = row[0]
basic_info = src.controller.no_frameobj_helper.row_into_list(basic)
top_ten = select_city_from_country(table, 10, country_code)
s.close()
result_list = [count, basic_info, top_ten]
return result_list
else:
print("Invalid country code!(ex: 'AE')")
def get_dataFrame(table):
"""
combine all data in database into dataframe format
'basically this function f**k up everything!'
But we still get the data out from the db,right?
:param table:
:return:
"""
s = Session()
result = s.query(table.store_name,table.city,table.store_number,table.brand,\
table.ownership_type,table.street_address,table.country,table.postcode,table.phone_number,\
table.longitude,table.latitude,table.timezone,table.stateprovince).all()
result_list = src.controller.no_frameobj_helper.row_into_list(
src.controller.no_frameobj_helper.get_seperate_list(result))
starbucks = {}
starbucks["Store Name"] = result_list[0]
starbucks["City"] = result_list[1]
starbucks["Store Number"] = result_list[2]
starbucks["Brand"] = result_list[3]
starbucks["Ownership Type"] = result_list[4]
starbucks["Street Address"] = result_list[5]
starbucks["Country"] = result_list[6]
starbucks["Postcode"] = result_list[7]
starbucks["Phone Number"] = result_list[8]
starbucks["Longitude"] = result_list[9]
starbucks["Latitude"] = result_list[10]
starbucks["Timezone"] = result_list[11]
starbucks["State/Province"] = result_list[12]
dataframe = DataFrame(starbucks)
s.close()
return dataframe
def count_distinct_records_total(table_row, count_distinct=True):
'''
获得不重复的列结果集
:param table_row:
:param count_distinct:
:return:
'''
s = Session()
if count_distinct:
result = s.query(func.count(distinct(table_row)))
else:
result = s.query(func.count(table_row))
count = 0
for row in result:
count = row[0]
s.close()
return count
def get_number_of_country(table, times):
'''
获得全球范围内前n的国家
:param table:
:param times:
:return:
'''
s = Session()
#the store count of country
count = func.count(table.country)
#select top n of country and their store numbers
result = s.query(table.country, count).group_by(table.country).order_by(
count.desc()).limit(times)
result_list = src.controller.no_frameobj_helper.row_into_list(result)
s.close()
return result_list
def get_ownership_percentage(table):
'''
获得全球范围内的所有种类占比
:param table:
:return:
'''
s = Session()
count = func.count(table.ownership_type)
result = s.query(table.ownership_type, count).group_by(
table.ownership_type).order_by(count.desc()).all()
# total_record = count_distinct_records_total(table.ownership_type,False)
result_list = []
for k, v in result:
percent = v
# percent = '%.2f%%' % (v / total_record * 100)
result_dict = (k, percent)
result_list.append(result_dict)
s.close()
return result_list
def select_city_from_country(table, times, country_code):
'''
获得指定国家前n的城市信息
:param table:
:param times:
:param country_code:
:return:
'''
if src.controller.no_frameobj_helper.check_if_valid(country_code):
s = Session()
count = func.count(table.city)
result = s.query(table.city,
count).filter(table.country == country_code).group_by(
table.city).order_by(count.desc()).limit(times)
result_list = src.controller.no_frameobj_helper.row_into_list(result)
s.close()
return result_list
else:
print("Invalid country code!")