hi, an strange error is happening here
in User model i have the following method:
def falta_votar
Category.find(:all) - votes.collect {|v| v.category}
end
and in the default.html.erb layout i have:
<%= current_user.falta_votar.size %>
but it only works once, when i try to access another page i get an
error message saying that the falta_votar method is nil, then i have
to restart the server to access the site
why is this happening?
also, i''m running the latest rails version, 2.3.4 On Sep 16, 4:53 pm, Paŭlo Geyer <pauloge...-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org> wrote:> hi, an strange error is happening here > > in User model i have the following method: > def falta_votar > Category.find(:all) - votes.collect {|v| v.category} > end > > and in the default.html.erb layout i have: > <%= current_user.falta_votar.size %> > > but it only works once, when i try to access another page i get an > error message saying that the falta_votar method is nil, then i have > to restart the server to access the site > > why is this happening?
2009/9/16 Paŭlo Geyer <paulogeyer-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>:> > hi, an strange error is happening here > > in User model i have the following method: > def falta_votar > Category.find(:all) - votes.collect {|v| v.category} > end > > and in the default.html.erb layout i have: > <%= current_user.falta_votar.size %> > > but it only works once, when i try to access another page i get an > error message saying that the falta_votar method is nil, then i have > to restart the server to access the site > > why is this happening?The current_user is likely what is nil, not the User method. Just guessing, I''d make sure the current_user is actually being instantiated on subsequent requests. -- Greg Donald http://destiney.com/
no, current_user isn''t nil Extracted source (around line #21): 18: <br /> 19: Você já votou em <%= current_user.votes.count %> categorias<br />20: 21: <%= current_user.falta_votar.size %> the current.user.votes works fine, but current_user.falta_votar doesn''t work when i try to reload the page, i don''t know why it would become nil, but is happening On Sep 16, 6:38 pm, Greg Donald <gdon...-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org> wrote:> 2009/9/16 Paŭlo Geyer <pauloge...-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>: > > > > > > > hi, an strange error is happening here > > > in User model i have the following method: > > def falta_votar > > Category.find(:all) - votes.collect {|v| v.category} > > end > > > and in the default.html.erb layout i have: > > <%= current_user.falta_votar.size %> > > > but it only works once, when i try to access another page i get an > > error message saying that the falta_votar method is nil, then i have > > to restart the server to access the site > > > why is this happening? > > The current_user is likely what is nil, not the User method. Just > guessing, I''d make sure the current_user is actually being > instantiated on subsequent requests. > > -- > Greg Donaldhttp://destiney.com/
Hi Paulo, On Wed, 2009-09-16 at 21:48 -0700, Paulo Geyer wrote: Sorry for coming in late. I haven''t followed the conversation so perhaps this will be off-track but maybe not.> no, current_user isn''t nil > > Extracted source (around line #21): > > 18: <br /> > 19: Você já votou em <%= current_user.votes.count %> categorias<br / > > > 20: > 21: <%= current_user.falta_votar.size %> > > the current.user.votes works fine,Not having seen the controller code, I''m guessing here... My guess is that ''current_user'' is a method (not a variable/object), that returns a User object and that the method is invoked via a before_filter.> but current_user.falta_votar > doesn''t work when i try to reload the page, i don''t know why it would > become nil, but is happening >Reloading the page may not be causing the before_filter to run. From where are you calling it? Check to make sure that it''s called from the controller getting instantiated via the method call invoked on the page reload. Another explanation might be that ''current_user.votes.count'' is working because ''votes'', as in current_user.votes'', is an association, whereas ''falta_votar'' is a method on a model. It''s too early here for me to figure out / put into words why that might matter ;-) In either case, you''ll be safer moving both of those into instance variables in your controller(s) and then using the instance variables in the views. HTH, Bill> On Sep 16, 6:38 pm, Greg Donald <gdon...-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org> wrote: > > 2009/9/16 Paŭlo Geyer <pauloge...-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>: > > > > > > > > > > > > > hi, an strange error is happening here > > > > > in User model i have the following method: > > > def falta_votar > > > Category.find(:all) - votes.collect {|v| v.category} > > > end > > > > > and in the default.html.erb layout i have: > > > <%= current_user.falta_votar.size %> > > > > > but it only works once, when i try to access another page i get an > > > error message saying that the falta_votar method is nil, then i have > > > to restart the server to access the site > > > > > why is this happening? > > > > The current_user is likely what is nil, not the User method. Just > > guessing, I''d make sure the current_user is actually being > > instantiated on subsequent requests. > > > > -- > > Greg Donaldhttp://destiney.com/ > >
using the "falta_votar" method doesn''t cause any problem, but
the
"votes.collect {|v| v.category}" inside the "falta_votar"
method seems
to cause the problem, it runs only once
On Sep 17, 7:38 am, bill walton
<bwalton...-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
wrote:> Hi Paulo,
>
> On Wed, 2009-09-16 at 21:48 -0700, Paulo Geyer wrote:
>
> Sorry for coming in late. I haven''t followed the conversation so
> perhaps this will be off-track but maybe not.
>
> > no, current_user isn''t nil
>
> > Extracted source (around line #21):
>
> > 18: <br />
> > 19: Você já votou em <%= current_user.votes.count
%> categorias<br /
>
> > 20:
> > 21: <%= current_user.falta_votar.size %>
>
> > the current.user.votes works fine,
>
> Not having seen the controller code, I''m guessing here...
>
> My guess is that ''current_user'' is a method (not a
variable/object),
> that returns a User object and that the method is invoked via a
> before_filter.
>
> > but current_user.falta_votar
> > doesn''t work when i try to reload the page, i don''t
know why it would
> > become nil, but is happening
>
> Reloading the page may not be causing the before_filter to run. From
> where are you calling it? Check to make sure that it''s called
from the
> controller getting instantiated via the method call invoked on the page
> reload.
>
> Another explanation might be that
''current_user.votes.count'' is working
> because ''votes'', as in current_user.votes'', is
an association, whereas
> ''falta_votar'' is a method on a model. It''s too
early here for me to
> figure out / put into words why that might matter ;-)
>
> In either case, you''ll be safer moving both of those into instance
> variables in your controller(s) and then using the instance variables in
> the views.
>
> HTH,
> Bill
>
> > On Sep 16, 6:38 pm, Greg Donald
<gdon...-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org> wrote:
> > > 2009/9/16 Paŭlo Geyer
<pauloge...-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>:
>
> > > > hi, an strange error is happening here
>
> > > > in User model i have the following method:
> > > > def falta_votar
> > > > Category.find(:all) - votes.collect {|v| v.category}
> > > > end
>
> > > > and in the default.html.erb layout i have:
> > > > <%= current_user.falta_votar.size %>
>
> > > > but it only works once, when i try to access another page i
get an
> > > > error message saying that the falta_votar method is nil,
then i have
> > > > to restart the server to access the site
>
> > > > why is this happening?
>
> > > The current_user is likely what is nil, not the User method.
Just
> > > guessing, I''d make sure the current_user is actually
being
> > > instantiated on subsequent requests.
>
> > > --
> > > Greg Donaldhttp://destiney.com/