Hi guys, I my application has to be all the "recent news, recent users, recent pictures"-stuff. This is shown in a rendered view. Right now I''m using a site controller getting data from different models like @news = Article.find(:all, :limit => 3, :order => ''created_at DESC'') Of course that doesn''t work anymore calling different contollers. I thought about setting a global variable? I tried to put it in apllication_helper but I get a nil-error by writing def recent $news = Article.find(:all, :limit => 3, :order => ''created_at DESC'') end and calling the following in the render <% for news in $news %> <h5><%=h news.title %></h5> <p><%=h truncate(news.synopsis, 200) %></p> <p><a href="#" title="mehr" class="more">mehr...</a></p> <% end %> Is it fine to work with a global variable and if how to do that? Greetings Mayo -- Posted via http://www.ruby-forum.com/. --~--~---------~--~----~------------~-------~--~----~ You received this message because you are subscribed to the Google Groups "Ruby on Rails: Talk" group. To post to this group, send email to rubyonrails-talk-/JYPxA39Uh5TLH3MbocFFw@public.gmane.org To unsubscribe from this group, send email to rubyonrails-talk+unsubscribe-/JYPxA39Uh5TLH3MbocFFw@public.gmane.org For more options, visit this group at http://groups.google.com/group/rubyonrails-talk?hl=en -~----------~----~----~----~------~----~------~--~---
...well, of course I have to call <%= recent %>, but anyway it''s empty. -- Posted via http://www.ruby-forum.com/. --~--~---------~--~----~------------~-------~--~----~ You received this message because you are subscribed to the Google Groups "Ruby on Rails: Talk" group. To post to this group, send email to rubyonrails-talk-/JYPxA39Uh5TLH3MbocFFw@public.gmane.org To unsubscribe from this group, send email to rubyonrails-talk+unsubscribe-/JYPxA39Uh5TLH3MbocFFw@public.gmane.org For more options, visit this group at http://groups.google.com/group/rubyonrails-talk?hl=en -~----------~----~----~----~------~----~------~--~---
..solved, "I did it my way" Site-Controller def index @title ="Willkommen" @news = Article.find(:all, :limit => 3, :order => ''created_at DESC'') $news = @news end Right now I don''t know what happens with the variable at all. Looks like that way, any controller, even called straight from a different site will participate from the variable called and set by any user. Every time a user calls the site-controller (well and it''s the index-site) the variable will be updated. -- Posted via http://www.ruby-forum.com/. --~--~---------~--~----~------------~-------~--~----~ You received this message because you are subscribed to the Google Groups "Ruby on Rails: Talk" group. To post to this group, send email to rubyonrails-talk-/JYPxA39Uh5TLH3MbocFFw@public.gmane.org To unsubscribe from this group, send email to rubyonrails-talk+unsubscribe-/JYPxA39Uh5TLH3MbocFFw@public.gmane.org For more options, visit this group at http://groups.google.com/group/rubyonrails-talk?hl=en -~----------~----~----~----~------~----~------~--~---
This doesn''t seem like the best way to use a global variable. If you are doing something like displaying those 3 articles on lots of pages, then maybe you want something like this in application.rb: before_filter :get_recent_articles def get_recent_articles @articles = Article.recent end Then you will be able to access @articles in every view (with <% articles.each do |article| %> etc). And you will have access to @articles in all your controller actions. You won''t have access to @articles in your models though. But there you could just call Article.recent. Note: the above code uses a named scope like this (in article.rb) named_scope :recent, :limit => 3, :order => ''created_at DESC'' What I''m suggesting doesn''t sound perfect to me (I''m just writing this quickly). But I think it is a better way to organize it than I global variable. -- Posted via http://www.ruby-forum.com/. --~--~---------~--~----~------------~-------~--~----~ You received this message because you are subscribed to the Google Groups "Ruby on Rails: Talk" group. To post to this group, send email to rubyonrails-talk-/JYPxA39Uh5TLH3MbocFFw@public.gmane.org To unsubscribe from this group, send email to rubyonrails-talk+unsubscribe-/JYPxA39Uh5TLH3MbocFFw@public.gmane.org For more options, visit this group at http://groups.google.com/group/rubyonrails-talk?hl=en -~----------~----~----~----~------~----~------~--~---
... thanks Pau, indeed you''re right, and by the way, the same way has been suggested in a different board. Thanks alot, greetings Mayo -- Posted via http://www.ruby-forum.com/. --~--~---------~--~----~------------~-------~--~----~ You received this message because you are subscribed to the Google Groups "Ruby on Rails: Talk" group. To post to this group, send email to rubyonrails-talk-/JYPxA39Uh5TLH3MbocFFw@public.gmane.org To unsubscribe from this group, send email to rubyonrails-talk+unsubscribe-/JYPxA39Uh5TLH3MbocFFw@public.gmane.org For more options, visit this group at http://groups.google.com/group/rubyonrails-talk?hl=en -~----------~----~----~----~------~----~------~--~---
I have always like constants for "global" variables. It comes from
programming C I think. Having model related constants in your
controllers is really not the MVC way IMHO. A constant is easy to
setup in ActiveRecord and in my opinion are much more readable. And
guess what, I actually did it with an Article model too! =>
class Article < ActiveRecord::Base
...
ARTS_CATEGORY = Category.find(:first, :conditions => [''name LIKE
?'',
''arts%'']).id
OPINE_CATEGORY = Category.find(:first, :conditions => [''name
LIKE ?'', ''opine%'']).id
DISTRACTIONS_CATEGORY = Category.find(:first, :conditions =>
[''name
LIKE ?'', ''distra%'']).id
NEWS_POLITICS_CATEGORY = Category.find(:first, :conditions =>
[''name
LIKE ?'', ''news%'']).id
...
So in my controllers I use a method like this (the actual method is a
shared method for all "types" longer, this is for readability:
...
def arts_archive
Article.find_by_category_id(Article::ARTS_CATEGORY)
end
...
On Nov 15, 2:47 pm, Mario Peterscheck <rails-mailing-l...@andreas-
s.net> wrote:> ... thanks Pau,
>
> indeed you''re right, and by the way, the same way has been
suggested in
> a different board.
>
> Thanks alot, greetings
> Mayo
> --
> Posted viahttp://www.ruby-forum.com/.
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blasterpal wrote:> class Article < ActiveRecord::Base > ... > ARTS_CATEGORY = Category.find(:first, :conditions => [''name LIKE ?'', > ''arts%'']).id > OPINE_CATEGORY = Category.find(:first, :conditions => [''name > LIKE ?'', ''opine%'']).id > DISTRACTIONS_CATEGORY = Category.find(:first, :conditions => [''name > LIKE ?'', ''distra%'']).id > NEWS_POLITICS_CATEGORY = Category.find(:first, :conditions => [''name > LIKE ?'', ''news%'']).id > > ... > > So in my controllers I use a method like this (the actual method is a > shared method for all "types" longer, this is for readability: > ... > def arts_archive > Article.find_by_category_id(Article::ARTS_CATEGORY) > end > ... >I think a better way to do this is class Category < ActiveRecord::Base has_many :articles #or has_one :article def self.arts # You could probably also do this with a named scope, # but I don''t remember the syntax off the top of my # for selecting just one object. Category.find(:first, :conditions => [''name LIKE ?'', ''arts%'']).id end end and then in your controller: Category.arts.articles -- Posted via http://www.ruby-forum.com/. --~--~---------~--~----~------------~-------~--~----~ You received this message because you are subscribed to the Google Groups "Ruby on Rails: Talk" group. To post to this group, send email to rubyonrails-talk-/JYPxA39Uh5TLH3MbocFFw@public.gmane.org To unsubscribe from this group, send email to rubyonrails-talk+unsubscribe-/JYPxA39Uh5TLH3MbocFFw@public.gmane.org For more options, visit this group at http://groups.google.com/group/rubyonrails-talk?hl=en -~----------~----~----~----~------~----~------~--~---