Thanks guys.. worked ....... On Wed, Nov 18, 2009 at 7:41 PM, Artem Korolev <[email protected]> wrote:
> It's not routing.it's - MVC. > Then your render 'new' template, view use instance variable defined in > the current action... > In the view you difened @e1 variable, but it's not defined in the create > action. > > 2009/11/18 ARUN SRINIVASAN <[email protected]>: > > That worked, care to explain the theory behind it, or some links how this > > routing works??? > > > > On Wed, Nov 18, 2009 at 6:25 PM, Artem Korolev <[email protected]> wrote: > >> > >> Replace > >> @expense = Expense.new(params [: expense]) > >> at > >> @e1 = Expense.new(params [: expense]) > >> in the create action > >> since the render =>: new variable @e1 is not defined, but in view, it is > >> used. > >> > >> 2009/11/18 Arun Srini <[email protected]> > >> > > >> > After much ado about the naming of model adn controllers... > >> > > >> > model : Expense > >> > controller : Expenses > >> > route : map.resources :expenses > >> > > >> > > >> > Here I am using mysql database and created a unique index, since > >> > db:migrated created an id object and made it as primary key. Now in > >> > the > >> > def create > >> > @expense = Expense.new(params[:expense]) > >> > if @expense.save > >> > flash[:viola] = 'New expense saved.. be frugal, save during this > >> > bad economy' > >> > redirect_to expenses_path > >> > else > >> > render :action => 'new' > >> > #redirect_to new_expense_path > >> > end > >> > > >> > > >> > Here I try to save, and if any error, render action =>'new'. When I do > >> > that I get the > >> > > >> > Called id for nil, which would mistakenly be 4 -- if you really wanted > >> > the id of nil, use object_id > >> > > >> > Extracted source (around line #1): > >> > > >> > 1: <% form_for @e1 do |er| %> > >> > 2: <p> > >> > 3: name :<br /> > >> > 4: <%= er.text_field :name %> > >> > > >> > I have the @e1 defined correctly in the controller (how can it work > >> > when I go to the new page directly using localhost:300/expenses/new ). > >> > > >> > And the trace : > >> > vendor/rails/actionpack/lib/action_controller/record_identifier.rb: > >> > 72:in `dom_id' > >> > vendor/rails/actionpack/lib/action_view/helpers/ > >> > record_identification_helper.rb:16:in `dom_id' > >> > vendor/rails/actionpack/lib/action_view/helpers/form_helper.rb:264:in > >> > `apply_form_for_options!' > >> > vendor/rails/actionpack/lib/action_view/helpers/form_helper.rb:248:in > >> > `form_for' > >> > app/views/expenses/new.html.erb:1:in > >> > `_run_erb_47app47views47expenses47new46html46erb' > >> > app/controllers/expenses_controller.rb:18:in `create' > >> > > >> > What I don't understand is the form_for works fine when used > >> > initially, or even through the > >> > redirect_to new_expense_path > >> > but not through the action => 'new' > >> > > >> > Any help is appreciated...... > >> > > >> > -- > >> > > >> > 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 > [email protected]. > >> > To unsubscribe from this group, send email to > >> > [email protected]<rubyonrails-talk%[email protected]> > . > >> > For more options, visit this group at > >> > http://groups.google.com/group/rubyonrails-talk?hl=. > >> > > >> > > >> > >> -- > >> > >> 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 [email protected]. > >> To unsubscribe from this group, send email to > >> [email protected]<rubyonrails-talk%[email protected]> > . > >> For more options, visit this group at > >> http://groups.google.com/group/rubyonrails-talk?hl=. > >> > >> > > > > > > > > -- > > If opportunity doesn't knock, build a door. - Milton Berle > > > > http://www.twitter.com/arzvi > > http://delicious.com/arzvi > > > > -- > > > > 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 [email protected]. > > To unsubscribe from this group, send email to > > [email protected]<rubyonrails-talk%[email protected]> > . > > For more options, visit this group at > > http://groups.google.com/group/rubyonrails-talk?hl=. > > > > -- > > 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 [email protected]. > To unsubscribe from this group, send email to > [email protected]<rubyonrails-talk%[email protected]> > . > For more options, visit this group at > http://groups.google.com/group/rubyonrails-talk?hl=. > > > -- If opportunity doesn't knock, build a door. - Milton Berle http://www.twitter.com/arzvi http://delicious.com/arzvi -- 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 [email protected]. To unsubscribe from this group, send email to [email protected]. For more options, visit this group at http://groups.google.com/group/rubyonrails-talk?hl=.
