渲染Ruby on Rails后保持参数 [英] Keep params after render Ruby on Rails

问题描述

我有一个属于User的项目.在我的用户视图中，我有一个添加新项目的链接，其中包含要向其添加项目的用户的参数.

I have a Project that belongs to User. In my user view I have a link to add a new project, with the parameter for the user I want to add the project to.

<%= link_to 'Add new project', :controller => "project", :action => "new", :id => @user %>

Url: /projects/new?id=62 

向用户添加项目是可行的.问题是当添加新项目时验证失败时，我将进行渲染.

Adding a project to a user works. The problem is when the validation fails while adding a new project and I do a render.

def create

    @project = Project.new(params[:project])

    if @project.save
        redirect_to :action => "show", :id => @project.id
    else
        render :action => "new"
    end

end

视图:

<%= form_for @project do |f| %>

    <%= f.label :name %>
    <%= f.text_field :name %>

    <%= f.hidden_field :user_id , :value => params[:id] %>

    <%= f.submit "Create project" %>
<% end %>

路线

resources :users do
 resources :projects
end

如何在渲染后为用户保留参数?还是有更好的方法来做到这一点?一直在看很多类似的问题，但无法解决.

How can I keep the parameter for the user after the render? Or is there some better way to do this? Been looking at a lot of similar questions but can't get it to work.

推荐答案

尝试

render :action => "new", :id => @project.id

如果它不适用于您，请尝试将参数传递给渲染操作的另一种方法.

if its not works for you, then try alternate way to pass the parameter to your render action.

这也可以帮助您-> Rails 3 Render =>参数新功能

This can also help you-> Rails 3 Render => New with Parameter

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