CODEWITHSUNDEEP
ruby-on-railsruby-on-rails-4model-view-controller
Jeff
Jeff

Reputation: 14279

Set content_for for all pages on the site

I have a yield in my application.html.erb,

<%= yield(:alert_area) %>

... and I want to set content for this area for every page on the site (that uses the layout). The content cannot be hardcoded in the view because it must only display in certain situations (i.e. "Your profile is incomplete, click here to complete it!")

How can I do this? I can know I can try using content_for in the ApplicationController but that seems like it is breaking the MVC pattern by putting content in the controller. Plus, I was hitting a dead end doing it that way anyway.

What is the proper Rails MVC way to stick dynamic content on every page of the site?

Upvotes: 1

Views: 70

Answers (2)

smathy
smathy

Reputation: 27971

As well as what bukk530 suggests, instead of a yield/content_for construct use a render/partial construct, and in the partial just have a conditional so it only renders something when you want it to. Eg.

- flash.each do |name, message|
  %div{ class: "flash flash-#{name}" }= message

Upvotes: 1

bukk530
bukk530

Reputation: 1895

The best way is using flash, it is stored in the session and it shows only one time after it has been set.

Example:

application.html.erb:

<span class="error"><%= flash[:error] %></span>

controller:

def raise_error
    flash[:error] = "Hi! i'm an error!" # Use i18n here
    redirect_to :somewhere
end

Upvotes: 1

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