AttributeError：＆＃39;经理＆＃39;对象没有属性＆＃39; title_count＆＃39; Django中的错误

Question

下面是我在Django 1.9.7中的models.py。从python manage.py shell执行以下Sub CheckValues(Target As Range, day As String) If Target.value >= 0.6666 Then Worksheets("ActivityTracker").ChartObjects(day & " Total Hours").Chart.SeriesCollection(1).Interior.Color = RGB(255, 204, 0) MsgBox ("Warning: You have exceeded 16 hours on " & day & vbNewLine & "Current Time: " & Target.value * 24) Else Worksheets("ActivityTracker").ChartObjects(day & " Total Hours").Chart.SeriesCollection(1).Interior.Color = RGB(0, 102, 204) End If End Sub 会产生此错误 Book.object.title_count('book')。

它是否在BookManager中定义？

AttributeError: 'Manager' object has no attribute 'title_count'

Answer 1

我认为你的意思是对象 s ：

Book.objects.title_count('book')
           ^