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所以我有一个表单向导工作得很好，但后来改变了两件事，现在收到一个InternalError数据库错误。首先，我使用get_template_names.

表格.py：

TEMPLATES = {'0': 'formtools/wizard/wizard_form.html',
             '1': 'formtools/wizard/wizard_form.html',
             '2': 'formtools/wizard/wizard_map.html'}

class CreateWizard(SessionWizardView):
    get_template_names(self):
        return [TEMPLATES[self.steps.current]]

其次，我添加FloatFields到正在保存的模型和表单本身：

class Thing(models.Model):
    ....
    latitude = models.FloatField()
    longitude = models.FloatField()
    ....

class StepThreeForm(forms.Form):
    ....
    latitude = forms.FloatField()
    longitude = forms.FloatField()
    ....

我不确定我为什么会收到InternalError: current transaction is aborted, commands ignored until end of transaction block. 这是回溯：

File "/myapp/lib/python2.7/django/core/handlers/base.py" in get_response
  111.                         response = callback(request, *callback_args, **callback_kwargs)
File "/myapp/lib/python2.7/django/contrib/auth/decorators.py" in _wrapped_view
  20.                 return view_func(request, *args, **kwargs)
File "/myapp/lib/python2.7/django/views/generic/base.py" in view
  48.             return self.dispatch(request, *args, **kwargs)
File "/myapp/lib/python2.7/django/contrib/formtools/wizard/views.py" in dispatch
  223.         response = super(WizardView, self).dispatch(request, *args, **kwargs)
File "/myapp/lib/python2.7/django/views/generic/base.py" in dispatch
  69.         return handler(request, *args, **kwargs)
File "/myapp/lib/python2.7/django/contrib/formtools/wizard/views.py" in post
  286.                 return self.render_done(form, **kwargs)
File "/myapp/lib/python2.7/django/contrib/formtools/wizard/views.py" in render_done
  328.         done_response = self.done(final_form_list, **kwargs)
File "/myapp/myproject/myapp/forms.py" in done
  82.       instance.save()
File "/myapp/myproject/myapp/models.py" in save
  112.         super(Thing, self).save()
File "/myapp/lib/python2.7/django/db/models/base.py" in save
  463.         self.save_base(using=using, force_insert=force_insert, force_update=force_update)
File "/myapp/lib/python2.7/django/db/models/base.py" in save_base
  551.                 result = manager._insert([self], fields=fields, return_id=update_pk, using=using, raw=raw)
File "/myapp/lib/python2.7/django/db/models/manager.py" in _insert
  203.         return insert_query(self.model, objs, fields, **kwargs)
File "/myapp/lib/python2.7/django/db/models/query.py" in insert_query
  1593.     return query.get_compiler(using=using).execute_sql(return_id)
File "/myapp/lib/python2.7/django/db/models/sql/compiler.py" in execute_sql
  910.             cursor.execute(sql, params)

Exception Type: InternalError at /
Exception Value: current transaction is aborted, commands ignored until end of transaction block

这些是我唯一更改的两件事，以及在向导的第 3 步添加模板。我无法弄清楚为什么这会改变我的向导的功能。你能帮我弄清楚为什么我现在收到这个错误吗？感谢您对这个令人困惑的问题的任何想法！

编辑：添加这些字段后，我通过南更新了我的架构。此外，我尝试使用DecimalField而不是FloatField，但仍然出现数据库错误。

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