当我发送错误的电子邮件时,验证无法通过,但视图中的错误消息不会显示:(
我有模特:
validate :recipient_not_have_invitation, :notice => "That user have already invitation"
def recipient_not_have_invitation
errors.add :notice, 'That user have already invitation' if InvitationToGroup.find_by_recipient_email_and_group_id(recipient_email, group_id)
end
控制器中的:
(...)
if @invitation_to_group.save
Mailer.invitation_to_group(@invitation_to_group).deliver
redirect_to root_url, :notice => "Successfully send invitation to user #{@invitation_to_group.recipient_email}"
else
redirect_to new_invitation_to_group_path(:group_id => @invitation_to_group.group_id)
end
在视图中(invitation_to_groups / new.html.erb)
<h2>New Invitation to group </h2>
<% if notice %>
<p id="notice"><%= notice %></p>
<% end %>
<%= form_for @invitation_to_group do |f| %>
<% if @invitation_to_group.errors.any? %>
<div id="error_explanation">
<h2><%= pluralize(@invitation_to_group.errors.count, "error") %> prohibited this user from being invitation:</h2>
<ul>
<% @invitation_to_group.errors.full_messages.each do |msg| %>
<li><%= msg %></li>
<% end %>
</ul>
</div>
<% end %>
(...)
答案 0 :(得分:2)
问题是您在控制器redirect_to
之后使用else
。所以你要采取新的行动,在这个行动中你有InvitationToGroup.new
。因此,您可以无错误地构建新对象;)您需要使用render
方法instesd。
PS。你应该考虑使用“formtastic”。它将在视图中改进您的代码。请观看这两个视频广播:http://railscasts.com/episodes/184-formtastic-part-1和http://railscasts.com/episodes/185-formtastic-part-2