rails params.merge in link

本文介绍了rails params.merge in link_to的处理方法，对大家解决问题具有一定的参考价值，需要的朋友们下面随着小编来一起学习吧！ 问题描述

我正在尝试在 link_to 块中添加 URL 参数.

I am trying to add a URL parameter in a link_to block.

当前代码 'renderChart', :class =>"btn", :remote =>真，:params =>params.merge(:limit => 5) %>

但这给了我一个错误.

它将 :class 和 :action 添加到 url 参数中，而不仅仅是 :limit.为什么?

It adds the :class and :action into the url parameter, not just the :limit. Why?

我从另一个看起来像这样的链接添加了其他 URL 参数

I add other URL params from another link that looks like this

link_to "Toggle Sort Direction",:action => 'renderChart', :remote => true, :params => {:sort => "desc"}

所以当用户单击另一个链接时，我想将限制添加到 url 参数并保留排序参数

so when the user clicks the other link I want to add the limit to the url params and keep the sort params

推荐答案

我终于自己找到了解决方案.

I finally managed to get a solution myself.

如果我很简单地这样做::params =>{:限制=>..., :sort =>params[:sort]} 我得到了我所需要的.如果有一个排序参数，它会保持原样.

If I very simply do this: :params => {:limit => ..., :sort => params[:sort]} i get exactly what I need. If there is a sort param it keeps it the way it is.