I have the usual methods in a RESTful implementation: index, new In the index method I have a variable @new_link which is not nil . At the end of the index method, I tested the value with logger.info @new_link.inspect to make sure. And the log output shows that @new_link is in fact not nill. Within index.html which is displayed by the index method, I include a link through new_link_path to call the new method to display a form to create a new link. I want to prefill this form with the value of @new_link. However, in the scope of the new method, @new_link is nill. How can this be? I thought that @new_link should have a scope that covers the entire instance of the class. Are these two methods operate in 2 different instances? Thanks. -- 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-/JYPxA39Uh5TLH3MbocFF+G/Ez6ZCGd0@public.gmane.org To unsubscribe from this group, send email to rubyonrails-talk+unsubscribe-/JYPxA39Uh5TLH3MbocFF+G/Ez6ZCGd0@public.gmane.org For more options, visit this group at http://groups.google.com/group/rubyonrails-talk?hl=en.
Every time you make a request, ie call a controller action, your rails application effectively starts from scratch. There''s no persistent instance data between requests, and the reason for this is obvious: imagine that you and another person are using the website at the same time. If objects persisted between requests, how would the server know which one was yours and which was the other persons? That''s why almost every action uses params[:id] to load an object from the db, or uses params from a form to build a new object. One seeming exception to this is the session, but even this doesn''t persist - it uses cookies to get a session key which is used to reload the session data from the sessions table in the database. -- 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-/JYPxA39Uh5TLH3MbocFF+G/Ez6ZCGd0@public.gmane.org To unsubscribe from this group, send email to rubyonrails-talk+unsubscribe-/JYPxA39Uh5TLH3MbocFF+G/Ez6ZCGd0@public.gmane.org For more options, visit this group at http://groups.google.com/group/rubyonrails-talk?hl=en.
Max, Thank you for the insightful answer. Following your answer, I have successfully accomplished my goal by passing value through the session variable. Happy New Year. Vincent. On Dec 30, 4:48 am, Max Williams <li...-fsXkhYbjdPsEEoCn2XhGlw@public.gmane.org> wrote:> Every time you make a request, ie call a controller action, your rails > application effectively starts from scratch. There''s no persistent > instance data between requests, and the reason for this is obvious: > imagine that you and another person are using the website at the same > time. If objects persisted between requests, how would the server know > which one was yours and which was the other persons? > > That''s why almost every action uses params[:id] to load an object from > the db, or uses params from a form to build a new object. > > One seeming exception to this is the session, but even this doesn''t > persist - it uses cookies to get a session key which is used to reload > the session data from the sessions table in the database. > -- > Posted viahttp://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-/JYPxA39Uh5TLH3MbocFF+G/Ez6ZCGd0@public.gmane.org To unsubscribe from this group, send email to rubyonrails-talk+unsubscribe@googlegroups.com. For more options, visit this group at http://groups.google.com/group/rubyonrails-talk?hl=en.