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我正在使用的Tkinter和Peewee ORM的脚本。我有:
db = SqliteDatabase('data.db')
introspector = Introspector.from_database(db)
models = introspector.generate_models()
cities_list = []
account_obj = models['accounts']
recordset= account_obj.select()
for r in recordset:
city = str(r.city)
elapsed_hours = (time.time()-int(r.datetime))/3600
cities_list.append(str(r.city)+'-'+str(elapsed_hours))
master = tk.Tk()
variable = StringVar(master)
variable.set(cities_list[0]) # default value
w = OptionMenu(master, variable, *cities_list)
w.pack()
def ok():
print ("value is:" + variable.get())
v_list = variable.get().split('-')
print type(account_obj)
recordset = account_obj.select().where(account_obj.city.contains(v_list[0])).get()
for r in recordset:
r.datetime=int(time.time())
r.update()
button = Button(master, text="OK", command=ok)
button.pack()
mainloop()
在第二个SELECT语句:
recordset = account_obj.select().where(account_obj.city.contains(v_list[0])).get()
我越来越:
Traceback (most recent call last):
<class 'peewee.BaseModel'>
File "...lib\lib-tk\Tkinter.py", line 1542, in __call__
return self.func(*args)
File "... myscript.py", line 46, in ok
for r in recordset:
TypeError: 'accounts' object is not iterable
我在做什么错?
通常,'get()'只返回一个实例(如果有的话)。你可能应该用'all()'(它返回一个'iterable *'列表)代替行:'recordset = account_obj.select()。where(account_obj.city.contains(v_list [0]) )获得()'。希望这是有道理的,因为我对这个框架没有经验。 – CristiFati
recordset = account_obj.select()。where(account_obj.city.contains(v_list [0]))。all() AttributeError:'SelectQuery'对象没有'all'属性 – user61629
我担心会发生这种情况。然后尝试删除'.get()'。 – CristiFati