Rails:提交后保留params

Question

假设您有一个网络应用程序,人们可以在其中提交链接,自己网站的链接以及他们不拥有的网站链接.提交表单在两种情况下几乎相同,除非他们提交链接的域名.

如果用户从他们自己注册的网站列表中提交,他们将获得他们网站的下拉列表.

If the user is submitting a link the user types the domain into a field whose value I get in the "link" model through an attr_accessor. The "link" model then executes a find_or_create method on that domain.

Right now my solution is unsatisfactory: When the user clicks "Submit Link" I put ?other=prompt into the url and then have this kind of conditional:

<% if params[:other] == "prompt" %>
    <div class="prompt_form">

<h2>This link is for:</h2>
<span class="blue_button"><%= link_to "My Website", new_link_path%></span> <span class="blue_button"><%= link_to "Another User's Site", new_link_path(:other => "yes")%></span>
</p>

When the user makes a choice between the two options in the form renders differently:

<% if params[:other] == "yes" || current_user == nil %>
                    <strong>Website Domain:</strong><br />
                    <%= f.text_field :unclaimed_domain %><br />
            <% elsif current_user %>         
                <% if current_user.websites.size > 1 %>
                    <p>
                        <strong>Website Domain:</strong><br />
                        <%= f.collection_select :website_id, current_user.websites.valid, :id, :domain, {:include_blank => true}  %> <%= error_message_on :link, :website %><br />
                        <%= link_to "Add a Website", new_website_path %>
                    </p>
                <% else %>
                    <p>
                        <strong>Website Domain:</strong><br />
                        <%= f.collection_select :website_id, current_user.websites.valid, :id, :domain %><br />
                        <%= link_to "Add a Website", new_website_path %>
                    </p>
                <% end %>

The problem with this is that if the user makes an error and fails some validations, the "render :action => 'new'" code gets executed and all the info in the params gets lost. Is there a way to keep that info or perhaps a different way to do this altogether?

Answer 1

I have only vague understanding of your problem, but it seems you want this:

<input name="other" value="<%= params[:other] %>" type="hidden">

This way, current value of other will be resubmitted, and, if validation fails, it'll still be accessible.