def save_class(small_class_dict):
"""保存类别信息,目前只能增加和修改，不能删除类别"""
old_dict_raw = get_cache("small_class_dict")
new_dict = small_class_dict
add_list = list() # 存放插入的小类的数组
update_list = list() # 存放更新的小类的数组
drop_list = list() # 存放删除的小类的id的数组
old_list = []
for k, v in old_dict_raw.items():
for i in v:
temp = {
"channel_id": k,
"class_id": i['class_id'],
"class_name": i['class_name']
}
old_list.append(temp)
new_list = [{
"channel_id": new_dict[key]['channel_id'],
"class_id": new_dict[key]['class_id'],
"class_name": key
} for key in new_dict.keys()]
if len(new_list) == 0:
return {"message": "success"}
else:
new_keys = [x['class_id'] for x in new_list]
drop_list = [
x['class_id'] for x in old_list
if str(x['class_id']) not in new_keys
]
old_keys = [x['class_id'] for x in old_list]
for x in new_list:
if x['class_id'] == "":
add_list.append(x)
else:
update_list.append(x)
sql_session = my_db.sql_session()
if len(drop_list) > 0:
for x in drop_list:
sql = my_db.structure_sql("delete", "class_info",
"where class_id={}".format(x))
sql_session.execute(sql)
sql_session.commit()
if len(update_list) > 0:
for x in update_list:
class_id = x.pop("class_id")
sql = my_db.structure_sql("edit", "class_info",
"where class_id={}".format(class_id),
**x)
sql_session.execute(sql)
sql_session.commit()
if len(add_list) > 0:
for x in add_list:
x.pop("class_id")
sql = my_db.structure_sql("add", "class_info", **x)
sql_session.execute(sql)
sql_session.commit()
sql_session.close()
return {"message": "success"}
def manage_keywords(**kwargs):
"""对搜索热词，keywords,title,description的操作"""
message = {"message": "success"}
ses = my_db.sql_session()
try:
the_type = kwargs.pop('the_type')
if the_type == "add":
sql = my_db.structure_sql("add", 'key_word_info', kwargs)
ses.execute(sql)
ses.commit()
elif the_type == 'delete':
try:
key_word_id = kwargs['key_word_id']
try:
key_word_id = int(key_word_id)
sql = 'select key_word_id from key_word_info'
proxy = ses.execute(sql)
result = [x[0] for x in proxy.fetchall()]
if key_word_id not in result:
message['message'] = '错误的id'
else:
sql = "delete from key_word_info where key_word_id={}".format(key_word_id)
ses.execute(sql)
ses.commit()
except ValueError:
raise ValueError("待删除id格式错误")
message['message'] = '待删除id格式错误'
except KeyError:
raise KeyError("删除key_word_info没有找到key_word_id")
message['message'] == '待删除id无效'
elif the_type == 'edit':
key_word_id = kwargs.get('key_word_id')
if key_word_id is None:
message['message'] = '没有key_word_id'
else:
if key_word_id.isdigit():
adict = {k: v for k, v in kwargs.items() if v != "" or v is not None}
sql = my_db.structure_sql("edit", "key_word_info", "where key_word_id={}".format(key_word_id),
**adict)
ses.execute(sql)
ses.commit()
else:
message['message'] = 'id非法'
except KeyError:
raise KeyError("the_type参数不存在")
message['message'] = '操作类型错误'
finally:
ses.close()
FromDB.yes("key_word_info") # 提醒要从数据库重新加载banner数据，参数为表明
return message
def vote(**kwargs):
"""投票计数"""
message = {"message": "success"}
kwargs['create_date'] = my_db.current_datetime()
sql = my_db.structure_sql("add", "vote_count", **kwargs)
sql_session = my_db.sql_session()
try:
sql_session.execute(sql)
sql_session.commit()
"""同步道缓存"""
lock = RLock()
lock.acquire()
add_vote_cache(kwargs['topic_id'], kwargs['support_a'],
kwargs['support_b'])
lock.release()
except sqlalchemy.exc.IntegrityError as e1:
"""
re.findall(r"for key '(.+?)'",str) 是从str中找到匹配以for key 'PRIMARY'")
句子中的PRIMARY,findall方法返回的是数组
"""
print(e1.args)
error_cause = re.findall(r"for key '(.+?)'", e1.args[-1])[0]
if error_cause == "only_once":
message["message"] = "你已经投过票了"
else:
print(error_cause)
message['message'] = "投票失败，请联系管理员"
finally:
sql_session.close()
return message
def up_down(**kwargs):
"""赞和踩"""
message = {"message": "success"}
up_down_str = kwargs.get("up_down_str")
if up_down_str is None:
message['message'] = 'error'
else:
kwargs.pop("up_down_str")
if up_down_str == "up":
kwargs['up_it'] = 1
kwargs['down_it'] = 0
else:
kwargs['up_it'] = 0
kwargs['down_it'] = 1
kwargs['create_date'] = my_db.current_datetime()
ses = my_db.sql_session()
comment_id = kwargs['comment_id']
only_id= kwargs['only_id']
sql = "delete from up_down_info where comment_id={} and only_id='{}'".format(comment_id, only_id)
ses.execute(sql)
ses.commit()
sql = my_db.structure_sql("add", "up_down_info", **kwargs)
ses.execute(sql)
ses.commit()
ses.close()
return message
def edit_user(**kwargs):
"""修改用户资料,参数必须是键值对的形式"""
message = {"message": "success"}
flag, msg = check_user_args(**kwargs)
if not flag:
message["message"] = "参数错误%s" % (msg)
else:
user_id = kwargs.pop("user_id", None)
if user_id is None or len(user_id) != 20:
message["message"] = "无效的用户ID"
else:
sql = my_db.structure_sql(
"edit",
"user_info",
query_terms="where user_id='{}'".format(user_id),
**kwargs)
session = my_db.sql_session()
try:
session.execute(sql)
session.commit()
except Exception as e:
print(e)
message['message'] = '编辑用户信息失败'
finally:
session.close()
return message
def manage_topic(**kwargs):
"""用户对话题的管理"""
message = {"message": "success"}
try:
the_type = kwargs.pop("the_type")
if the_type == "add":
"""添加"""
if kwargs['begin_date'] == "":
kwargs['begin_date'] = my_db.current_datetime()
if kwargs['end_date'] == "":
kwargs['end_date'] = my_db.current_datetime(365)
kwargs['can_show'] = 0
sql = my_db.structure_sql("add", "topic_info", **kwargs)
sql_session = my_db.sql_session()
print(sql)
sql_session.execute(sql)
sql_session.commit()
sql_session.close()
elif the_type == "edit":
pass
except KeyError:
message['message'] = "不理解的操作"
except Exception as e:
message['message'] = "数据库执行错误"
print(e)
finally:
return message
def edit_admin(**kwargs):
"""修改管理员资料,参数必须是键值对的形式"""
message = {"message": "success"}
if not check_admin_args(**kwargs):
message["message"] = "参数错误"
else:
admin_id = kwargs.pop("admin_id", None)
if admin_id is None or not my_db.validate_arg(admin_id):
message["message"] = "无效的用户ID"
else:
sql = my_db.structure_sql(
"edit",
"admin_info",
query_terms="where admin_id='{}'".format(admin_id),
**kwargs)
session = my_db.sql_session()
try:
session.execute(sql)
session.commit()
except Exception as e:
print(e)
message['message'] = '编辑管理员信息失败'
finally:
session.close()
return message
def add_admin(**kwargs):
"""增加管理员,参数必须是键值对的形式,"""
message = {"message": "success"}
if not check_admin_args(**kwargs):
message["message"] = "参数错误"
else:
try:
sql = my_db.structure_sql("add", "admin_info", **kwargs)
session = my_db.sql_session()
session.execute(sql)
session.commit()
except sqlalchemy.exc.IntegrityError as e1:
"""
re.findall(r"for key '(.+?)'",str) 是从str中找到匹配以for key 'PRIMARY'")
句子中的PRIMARY,findall方法返回的是数组
"""
print(e1.args)
error_cause = re.findall(r"for key '(.+?)'", e1.args[-1])[0]
if error_cause == "admin_phone":
message["message"] = "管理员手机重复"
else:
print(error_cause)
message['message'] = "添加管理员失败"
except Exception as e2:
print(e2)
print("未知错误")
finally:
session.close()
return message
def add_user(**kwargs):
"""增加用户,参数必须是键值对的形式,注意，暂时没追加微信登录的方式"""
message = {"message": "success"}
if not check_user_args(**kwargs):
message["message"] = "参数错误"
else:
try:
sql = my_db.structure_sql("add", "user_info", **kwargs)
session = my_db.sql_session()
session.execute(sql)
session.commit()
except sqlalchemy.exc.IntegrityError as e1:
"""
re.findall(r"for key '(.+?)'",str) 是从str中找到匹配以for key 'PRIMARY'")
句子中的PRIMARY,findall方法返回的是数组
"""
print(e1.args)
error_cause = re.findall(r"for key '(.+?)'", e1.args[-1])[0]
if error_cause == "user_phone":
message["message"] = "此手机已注册过"
elif error_cause == "PRIMARY":
message["message"] = "用户ID重复"
else:
print(error_cause)
message['message'] = "注册失败，请联系客服"
except Exception as e2:
print(e2)
print("未知错误")
finally:
session.close()
return message
def save_channel(channel_dict):
"""保存频道信息"""
new_dict = channel_dict
if new_dict:
sql_session = my_db.sql_session()()
for k, v in new_dict:
sql = my_db.structure_sql("edit",
"channel_info",
"where channel_id={}".format(k),
channel_name=v)
sql_session.execute(sql)
sql_session.commit()
sql_session.close()
return True
else:
raise ValueError("频道信息错误")
return False
def manage_comment(**kwargs):
"""管理用户留言"""
message = {"message": "success"}
ses = my_db.sql_session()
try:
the_type = kwargs.pop("the_type")
if the_type == "add":
"""添加留言"""
kwargs['create_date'] = my_db.current_datetime()
sql = my_db.structure_sql("add", "comment_info", **kwargs)
ses.execute(sql)
ses.commit()
elif the_type == "edit":
comment_id = kwargs.pop("comment_id")
sql = my_db.structure_sql("edit", "comment_info",
"where comment_id={}".format(comment_id),
**kwargs)
ses.execute(sql)
ses.commit()
elif the_type == 'delete':
comment_id = kwargs.pop("comment_id")
sql = my_db.structure_sql("delete", "comment_info",
"where comment_id={}".format(comment_id),
**kwargs)
ses.execute(sql)
ses.commit()
elif the_type == "by_comment_id":
"""根据评论id获取话题"""
comment_id = kwargs.pop("comment_id")
child_sql = "(SELECT CONCAT_WS(' vs ',SUM(up_it),SUM(down)) " \
"FROM up_down_info WHERE up_down_info.comment_id=comment_info.comment_id)" # 查询赞和踩的子查询
column_str = "comment_id,comment_text,comment_author,user_info.user_nickname,user_info.user_img_url," \
"create_date,support_side,topic_id,parent_comment,comment_status,{}".format(child_sql)
sql = "select {} from comment_info,user_info where comment_status>0 user_id=comment_author " \
"and comment_id={}".format(column_str, comment_id)
proxy = ses.execute(sql)
result = proxy.fetchone()
columns = [
'comment_id', 'comment_text', 'user_id', 'user_nickname',
'user_img_url', 'create_date', 'support_side', 'topic_id',
'parent_comment', 'comment_status', "up_vs_down"
]
"""
列名分别代表：评论id，评论内容,用户id，用户昵称，用户头像，发布时间，支持方向，话题id，评论状态
被评论对象id，赞和踩的数量
"""
if result is None:
message['data'] = dict()
else:
message['data'] = dict(zip(columns, result))
elif the_type == "by_topic_id":
"""根据话题id获取话题"""
topic_id = kwargs.pop("topic_id")
child_sql = "(SELECT CONCAT_WS(' vs ',SUM(up_it),SUM(down_it)) " \
"FROM up_down_info WHERE up_down_info.comment_id=comment_info.comment_id)" # 查询赞和踩的子查询
column_str = "comment_id,comment_text,comment_author,user_info.user_nickname,user_info.user_img_url," \
"comment_info.create_date,support_side,topic_id,parent_comment,comment_status,{}".\
format(child_sql)
sql = "select {} from comment_info,user_info where comment_status>0 and user_id=comment_author " \
"and topic_id={}".format(column_str, topic_id)
proxy = ses.execute(sql)
result = proxy.fetchall()
columns = [
'comment_id', 'comment_text', 'user_id', 'user_nickname',
'user_img_url', 'create_date', 'support_side', 'topic_id',
'parent_comment', 'comment_status', "up_vs_down"
]
"""
列名分别代表：评论id，评论内容,用户id，用户昵称，用户头像，发布时间，支持方向，话题id，评论状态
被评论对象id，赞和踩的数量
"""
if len(result) == 0:
message['data'] = list()
else:
result = [dict(zip(columns, x)) for x in result]
message['data'] = result
elif the_type == "all":
"""获取所有评论，用于后台管理"""
topic_id = kwargs.pop("topic_id")
child_sql = "(SELECT CONCAT_WS(' vs ',SUM(up_it),SUM(down)) " \
"FROM up_down_info WHERE up_down_info.comment_id=comment_info.comment_id)" # 查询赞和踩的子查询
column_str = "comment_id,comment_text,comment_author,user_info.user_nickname,user_info.user_img_url," \
"create_date,support_side,topic_id,parent_comment,comment_status,{}".format(child_sql)
sql = "select {} from comment_info,user_info where user_id=comment_author " \
"and topic_id={}".format(column_str, topic_id)
proxy = ses.execute(sql)
result = proxy.fetchall()
columns = [
'comment_id', 'comment_text', 'user_id', 'user_nickname',
'user_img_url', 'create_date', 'support_side', 'topic_id',
'parent_comment', 'comment_status', "up_vs_down"
]
"""
列名分别代表：评论id，评论内容,用户id，用户昵称，用户头像，发布时间，支持方向，话题id，评论状态
被评论对象id，赞和踩的数量
"""
if len(result) == 0:
message['data'] = list()
else:
message['data'] = [dict(zip(columns, x)) for x in result]
elif the_type == "page":
"""分页查询所有评论"""
index = kwargs.get("index")
length = kwargs.get("page_length")
try:
index = int(index)
length = int(length)
columns = [
'comment_id', 'comment_text', 'comment_author',
'comment_info.create_date', 'support_side',
'user_info.user_nickname', 'topic_id',
'topic_info.top_title', 'parent_comment', 'comment_status'
]
sql = "select " + ",".join(columns) + (
" from comment_info,user_info,topic_info where "
"topic_info.top_id=comment_info.topic_id and "
"user_id=comment_author order by create_date desc "
"limit {},{}".format((index - 1) * length, length))
try:
columns = [
'comment_id', 'comment_text', 'comment_author',
'create_date', 'support_side', 'user_nickname',
'topic_id', 'topic_title', 'parent_comment',
'comment_status'
]
proxy_result = ses.execute(sql)
result = proxy_result.fetchall()
if len(result) != 0:
result = [my_db.str_format(x) for x in result]
data = [dict(zip(columns, x)) for x in result]
else:
data = []
message['data'] = data
except Exception as e:
print(e)
message['message'] = "查询错误"
except ValueError:
message['message'] = "无效的页码或者步长"
except KeyError:
message['message'] = "不理解的操作"
except Exception as e:
print(e)
message['message'] = "数据库执行错误"
finally:
ses.close()
return message
def manage_topic_admin(**kwargs):
"""后台对话题的管理"""
message = {"message": "success"}
sql_session = my_db.sql_session()
try:
the_type = kwargs.pop("the_type")
if the_type == "add":
"""添加"""
if kwargs['begin_date'] == "":
kwargs['begin_date'] = my_db.current_datetime()
if kwargs['end_date'] == "":
kwargs.pop('end_date')
kwargs['can_show'] = 0
sql = my_db.structure_sql("add", "topic_info", **kwargs)
print(sql)
sql_session.execute(sql)
sql_session.commit()
elif the_type == "edit":
"""编辑"""
try:
top_id = kwargs.pop("top_id")
if kwargs['begin_date'] == "":
kwargs['begin_date'] = my_db.current_datetime()
if kwargs['end_date'] == "":
kwargs['end_date'] = my_db.current_datetime(365)
sql = my_db.structure_sql("edit", "topic_info",
"where top_id='{}'".format(top_id),
**kwargs)
sql_session.execute(sql)
sql_session.commit()
except KeyError:
message['message'] == '错误的话题id'
except Exception as e:
message['message'] = "数据库执行错误"
print(e)
elif the_type == "drop":
"""删除"""
try:
top_id = kwargs.pop("top_id")
sql = "delete from topic_info where top_id={}".format(top_id)
sql_session.execute(sql)
sql_session.commit()
except KeyError:
message['message'] == '错误的话题id'
except Exception as e:
message['message'] = "数据库执行错误"
print(e)
elif the_type == "status":
"""话题状态的调整，审核/拒绝/置顶等"""
try:
top_id = kwargs.pop("top_id")
topic_status = kwargs.pop("topic_status")
sql = "update topic_info set can_show={} where top_id={}".format(
topic_status, top_id)
sql_session.execute(sql)
sql_session.commit()
except KeyError:
message['message'] = '错误的话题id'
except Exception as e:
print(e)
message['message'] = "数据库执行错误"
elif the_type == "single":
"""根据id获取单个话题的内容"""
top_id = kwargs.pop("top_id")
child_sql = "(SELECT CONCAT_WS(' vs ',SUM(support_a),SUM(support_b)) " \
"FROM vote_count WHERE vote_count.topic_id=topic_info.top_id)" # 查询ab支持度的子查询
sql = "SELECT top_id,top_title,top_content,viewpoint_a,viewpoint_b,can_show,img_url_a,img_url_b," \
"topic_info.channel_id,channel_info.channel_name,topic_info.class_id," \
"class_info.class_name,end_date,begin_date," \
"user_info.user_nickname,{} FROM topic_info,channel_info,class_info,user_info " \
"WHERE user_info.user_id=topic_info.author " \
"AND channel_info.channel_id=topic_info.channel_id and " \
"class_info.class_id=topic_info.class_id AND " \
"top_id='{}'".format(child_sql, top_id)
columns = [
'top_id', 'top_title', 'top_content', 'viewpoint_a',
'viewpoint_b', 'can_show', 'img_url_a', 'img_url_b',
'channel_id', 'channel_name', 'class_id', 'class_name',
'end_date', 'begin_date', 'author', "a_vs_b"
]
proxy_result = sql_session.execute(sql)
result = proxy_result.fetchone()
result = my_db.str_format(result)
sql_session.close()
data = dict(zip(columns, result))
message['data'] = data
elif the_type == "page":
"""分页查询话题"""
index = kwargs.get("index")
length = kwargs.get("page_length")
try:
index = int(index)
length = int(length)
columns = get_columns()
sql = "select " + ",".join(columns) + (
" from topic_info order by create_date desc "
"limit {},{}".format((index - 1) * length, length))
try:
proxy_result = sql_session.execute(sql)
result = proxy_result.fetchall()
if len(result) != 0:
result = [my_db.str_format(x) for x in result]
data = [dict(zip(columns, x)) for x in result]
else:
data = []
message['data'] = data
except Exception as e:
print(e)
message['message'] = "查询错误"
except ValueError:
message['message'] = "无效的页码或者步长"
except KeyError as e:
print(e)
message['message'] = "不理解的操作"
except Exception as e:
print(e)
message['message'] = "数据库执行错误"
finally:
sql_session.close()
return message