Access a model variable from another controller page

Question

Setting which functions as a post. It has the variables: Title:string Description:text, Photo:image and Paragraph:text.

I have another controller which controls my Home, About, News and contact.
On my Home, I'm trying to access the title of the setting with the id 3. I can't figure it out. Do i need to define the controls for the settings in the page controller as well? How can I access it?.

Here is my code at the Home,

<% @setting.(id[3]) do |setting| %>
<h2><%= setting.title %></h2>
<% end %>

Error: Undified local varible or method 'id' for #<#

Would appreciate some help, or a push in the right direction. Thanks :)

In controller set the @setting by @setting = Setting.find(3), and then in view put <h2><%= @setting.title %></h2> without all this <% @setting.(id[3]) do |setting| %> — Yevgeniy Anfilofyev
– Yevgeniy Anfilofyev, Commented Sep 17, 2013 at 10:52
Okey but if I want to display for example setting id 1 at one place at the page and setting id 3 at another place, how do I make all the settings avalible in the controller? is it enough with @settings = Settings.all and @setting = Setting.find(params[id]), I'll try it :) — fynn
– fynn, Commented Sep 17, 2013 at 10:57
You could get them by @settings = Setting.find([1,3]) and then use each of them into view. — Yevgeniy Anfilofyev
– Yevgeniy Anfilofyev, Commented Sep 17, 2013 at 11:11
Okey, how do i then display them in the html ( guessing that I should not use the find([1]) cuz i've already dont that in the controller) — fynn
– fynn, Commented Sep 17, 2013 at 11:45
It depends on your app and what are you going to do. For example, you can iterate through them: <% @settings.each do |setting| %> and then <h2><%= setting.title %></h2> and <% end %> at the end. — Yevgeniy Anfilofyev
– Yevgeniy Anfilofyev, Commented Sep 17, 2013 at 11:50

Amit Sharma · Accepted Answer · 2013-09-17 11:18:06Z

3

If you want to display single record then there is no need to have loop, so you can try this.

<% setting = Setting.find(3) %>
<h2><%= setting.title %></h2>

edited Sep 17, 2013 at 11:18

answered Sep 17, 2013 at 10:55

Amit Sharma

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3 Comments

fynn Over a year ago

worked but did not work with <% setting = Setting.find(3) do%> <h2><%= setting.title %></h2><% end %> If I want to display the title of the 4th post somewhere on the page the setting id is already defined, is it not? :) Thanks

Yevgeniy Anfilofyev Over a year ago

And now for only one page you will get a lot of SQL requests to DB. Not so clever :)

Amit Sharma Over a year ago

you can also do this to display more than one record at any place in a view. in your controller write @setting = Setting.all and in your view <% setting = @setting.find(3) %> <h2><%= setting.title %></h2>

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