我建立了一个django应用程序，该应用程序用于存储会议记录。工作室笔记对象称为StudioMeetingNote，它具有2个CustomUser模型的外键字段，即secretary和chairman。每个CustomUser实例都有2个date字段，即last_date_chairman和last_date_secretary。当以StudioMeetingNote格式向用户分配主席后，我希望该用户的last_date_chairman字段获得与分配给属于{{的字段meeting_start_date的日期相同的值1}}本身。 StudioMeetingNote也是如此。
为此，我决定使用last_date_secretary方法。它位于def save_model类中，该类代表admin部分中的StudioMeetingNoteAdmin类。整个实现如下所示：
StudioMeetingNote class StudioMeetingNoteAdmin(admin.ModelAdmin):
fields = (('meeting_start_time', 'meeting_end_time'), ('chairman', 'secretary'), 'absent_persons',)
# fieldsets = [
# ('Tijden', {'fields': ['meeting_start_time', 'meeting_end_time']}),
# ('Wie is de voorzitter/notulist', {'fields': [('chairman', 'secretary')]}),
# ('Opkomst', {'fields': [('attending_persons', 'absent_persons')]}),
# ]
inlines = [OpeningAndParticularitiesInline, ActionListPointInline, RemarksPriorMeetingInline, IssuesToAddressInline, OurNextMoveInline, QuestionRoundInline]
list_filter = ['meeting_start_time']
search_fields = ['meeting_start_time']
list_display = ('meeting_start_time', 'chairman', 'secretary')
save_as = True
def save_model(self, request, obj, form, change):
save_user = False
if 'chairman' in form.changed_data:
obj.chairman = form.cleaned_data['chairman']
obj.chairman.last_date_chairman = form.cleaned_data.get('meeting_start_date')
save_user = True
if 'secretary' in form.changed_data:
obj.secretary = form.cleaned_data['secretary']
obj.secretary.last_date_secretary = form.cleaned_data.get('meeting_end_date')
save_user = True
if save_user:
obj.save()
保存正确，但是当我查看用户指定的秘书/主席是否已更新其秘书/主席日期时，我可以看到没有更新发生。谁能告诉我我的studio note代码有什么问题吗？
谢谢
编辑：这是完整的models.py文件
save_model