writing a meta refresh method for rails
- by aaronstacy
I want a method in app/controllers/application.rb that can prepend/append text to whatever template gets rendered. Of course I can't call render twice w/o getting a double render error, so is this possible?
I want to redirect after a delay using a meta refresh. Here's what I've got:
app/controllers/application_controller.rb:
def redirect_after_delay (url, delay)
@redirect_delay = delay
@redirect_url = url
render
end
app/views/layouts/application.html.erb
<!DOCTYPE html>
<html lang="en">
<head>
<%= yield :refresh_tag %>
</head>
<body>
<%= yield %>
</body>
</html>
So then if I want to add a redirect-after-delay, I add the following to 1) my controller and 2) the action's view:
app/controllers/my_controller.rb
def my_action
redirect_after_delay 'http://www.google.com', 3 if some_condition
end
app/views/my_controller/my_action.html.erb
<% content_for :refresh_tag do %>
<meta http-equiv='refresh' content='<%=@redirect_delay%>;url=<%=@redirect_url%>'>
<% end %>
<h1>Please wait while you are redirected...</h1>
Since the content_for block never changes, is it possible to do this in some generic way so that I don't have to put <%= yield :refresh_tag %> in each template? (e.g. could redirect_after_delay add it into whatever template is going to be rendered?)
