[英]How to pass a parameter to controller action from view in rails through link_to helper
<%= link_to "Connect", {controller:"home", action:"connectTo"}, id: "btny" %>
This is my link_to
helper in view. 这是我在视图中的
link_to
帮助器。
I want to attach a parameter in this link_to
tag so that I can get it in the action connectTo
. 我想在这个
link_to
标签中附加一个参数,以便我可以在动作connectTo
获取它。 I'm unable to find correct syntax or way to do it, and unable to understand some answers I found on stackoverflow. 我无法找到正确的语法或方法,并且无法理解我在stackoverflow上找到的一些答案。 How can I achieve this?
我怎样才能做到这一点?
def connectTo
#here i want to get the parameter i pass from link_to from view...
end
Do not use camel case in variable names and method names in Rails. 不要在Rails中的变量名和方法名中使用camel case。 That's not a convention and will bite you later.
这不是一个惯例,会在以后咬你。
Use named path when you can, instead of manually assign controller and action. 尽可能使用命名路径,而不是手动分配控制器和操作。
For your question, suppose your named path is home_connect_to_path
, then 对于您的问题,假设您的命名路径是
home_connect_to_path
,那么
link_to "Connect", home_connect_to_path(foo_param: 'bar_value')
The link will look like 链接看起来像
http://localhost:3000/home/connect_to?foo_parms=bar_value
Then get it in controller 然后在控制器中获取它
def connect_to
foo = params[:foo_param] # 'bar_value'
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