I want to add a conditional operator to the hash.

Asked 2 years ago, Updated 2 years ago, 43 views

Currently, the code is as follows:

current_page?(controller: 'foo', action: 'bar')

This time, I would like to increase the action (even if it is a different action).
However, it doesn't work even if I write it with a conditional operator.
Even if I write as below, only one action works

-if current_page?(controller: 'locations', action: "new"||"index")

Please tell me how I can make it work well.
Thank you for your cooperation.

ruby-on-rails ruby

2022-09-30 20:22

2 Answers

"new"||"index" is always only "new", so I think the same reason why current_page?(controller: 'locations', action: "new") doesn't work as intended.

If you look at the implementation of current_page? it seems that it will be converted to url_for in the middle, so it will be difficult to make a decision at once.

If you don't mind, I think it will work if you do the following.

Proposal 1.case/when to determine one by one

Proposal 2.

Using Array#any?
-if%w[new index].any?{|action|current_page?(controller: 'locations', action:action)}

Although I don't know how to use it or what the surrounding code is...Personally, current_page? feels more complicated than I need, so controller_name and action_name simply Array#include? and and so on.

For example, define what actions are targeted on the controller side, and 

class LocationsController<ApplicationController
  HOGE_ACTIONS = %w [index new]
end

It's like judging by the view.

-if LocationsController::HOGE_ACTIONS.include?(action_name)

I think you can cut the constant definition and logic to LocationsHelper.

2022-09-30 20:22

As a bonus, I'll put up another plan that's a little too much.

It's a wild move to change the behavior of current_page?.

#helper
module ApplicationHelper
  US>def current_page ?(options)
    if options.kind_of?(Hash)&options[:actions]
      options[:actions].any?{|action|super(options.merge(action:action)))}
    else
      super
    end
  end
end

# view
- if current_page?(controller: 'locations', actions: %w[new index])

Note that the argument passed to current_page? is actions instead of action.

2022-09-30 20:22

If you have any answers or tips

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