python - 从 Flask 表单中删除搜索词

Question

我有一个表单可以通过电子邮件搜索用户以将其删除。删除用户并返回页面后，旧的搜索词仍处于表单中。提交后如何从表单中删除该值？

使用 request.form.clear() 或 request.form['email'] = "" 会引发 TypeError: 'ImmutableMultiDict' 对象是不可变的.

if 'delete_user' in request.form:
# don't allow current user to delete themselves
    if user.id != current_user.id:
        User.delete(user)
        flash(user.username + " has been deleted", 'warning')
        user = None
        request.form.clear()

searchForm = SearchForm(request.form, obj=user)
return render_template("users/admin.html", user=user, form=searchForm)

Answer 1

从您的代码来看，搜索字段可能是使用form=searchForm填充的，该字段是通过SearchForm(request.form, obj构建的) =用户)。您需要调整传递给构造函数的内容。像下面这样的东西应该可以工作:

  formParams = {key: value for key, value in x.items() if key != "email"}

  searchForm = SearchForm(formParams, obj=user)

  return render_template("users/admin.html", user=user,
                                             form=searchForm)