Dear all, I''m Going, by the book, through the book "Agile Web Development with Rails". (I hope btw that it''s not off topic to share my mental bump here. ) I''m running into the following error: NoMethodError in Store#add_to_cart You have a nil object when you didn''t expect it! The error occured while evaluating nil.product_id Have checked all the syntaxes several times and I''m stuck on pages 85-86. Can somebody help a Rails newby out, where to start? Thanx a million. Kind reagrds, Gerard. -- "Who cares if it doesn''t do anything? It was made with our new Triple-Iso-Bifurcated-Krypton-Gate-MOS process ..." My $Grtz =~ Gerard; ~ :wq!
On 25 Nov 2005, at 16:32, Gerard wrote:> I''m running into the following error: > > NoMethodError in Store#add_to_cart > > You have a nil object when you didn''t expect it! > The error occured while evaluating nil.product_id > > Can somebody help a Rails newby out, where to start?Post your method (add_to_cart) body please. I''m guessing that it''s something to do with you instanciating the LineItem object but can''t tell for sure. Yours, Craig -- Craig Webster | t: +44 (0)131 516 8595 | e: craig-07VhxHapISisTnJN9+BGXg@public.gmane.org Xeriom.NET | f: +44 (0)709 287 1902 | w: http://xeriom.net
Craig,
First, thanx for the response. Below is the add_to_cart action.
def add_to_cart
product = Product.find(params[:id])
@cart = find_cart
@cart.add_product(product)
redirect_to(:action => ''display_cart'')
end
Funny enough it now comes with an different error (a step further since
it''s
redirected there), even though no code was changed in the mean time, saying:
NoMethodError in Store#display_cart
Showing app/views/store/display_cart.rhtml where line #6 raised:
You have a nil object when you didn''t expect it!
The error occured while evaluating nil.product
Extracted source (around line #6):
3: <table>
4: <%
5: for item in @items
6: product = item.product
7: -%>
8: <tr>
9: <td><%= item.quantity %></td>
I can''t help to think that an initial value is not set somewhere, since
it
keep talking about a nil object.
Looking forward to your response.
Kind Regards,
Gerard.
On Friday 25 November 2005 20:35, Craig Webster tried to type something
like:> On 25 Nov 2005, at 16:32, Gerard wrote:
> > I''m running into the following error:
> >
> > NoMethodError in Store#add_to_cart
> >
> > You have a nil object when you didn''t expect it!
> > The error occured while evaluating nil.product_id
> >
> > Can somebody help a Rails newby out, where to start?
>
> Post your method (add_to_cart) body please. I''m guessing that
it''s
> something to do with you instanciating the LineItem object but
can''t
> tell for sure.
>
> Yours,
> Craig
> --
> Craig Webster | t: +44 (0)131 516 8595 | e:
craig-07VhxHapISisTnJN9+BGXg@public.gmane.org
> Xeriom.NET | f: +44 (0)709 287 1902 | w: http://xeriom.net
>
>
>
> _______________________________________________
> Rails mailing list
> Rails-1W37MKcQCpIf0INCOvqR/iCwEArCW2h5@public.gmane.org
> http://lists.rubyonrails.org/mailman/listinfo/rails
--
$biz = http://www.gp-net.nl ;
$fun = http://www.mrmental.com ;
~
~
:wq!
On 26 Nov 2005, at 10:24, Gerard J. Petersen wrote:> Funny enough it now comes with an different error (a step further > since it''s > redirected there), even though no code was changed in the mean > time, saying: > > NoMethodError in Store#display_cartCould you post your display_cart method here? The change you mention seems to imply that the add_to_cart method is working now so we should concentrate our efforts towards the code that makes the app cry. Yours, Craig -- Craig Webster | t: +44 (0)131 516 8595 | e: craig-07VhxHapISisTnJN9+BGXg@public.gmane.org Xeriom.NET | f: +44 (0)709 287 1902 | w: http://xeriom.net
It sounds like @items is not getting set. Check your display_cart
method in your store_controlled.rb. It should be something like:
def display_cart
@items=@cart.items
if @items.empty?
redirect_to_index ''Your cart is
empty''
end
if params[:context]==:checkout
render :layout => false
end
end
If you are still stuck, put in some debugging lines to see what''s
going on, e.g.
def display_cart
@items=@cart.items
p @cart.inspect
p @items.inspect
and see what''s displayed in Webrick''s log.
On 26 Nov 2005, at 10:24am, Gerard J. Petersen wrote:
> Craig,
>
> First, thanx for the response. Below is the add_to_cart action.
>
> def add_to_cart
> product = Product.find(params[:id])
> @cart = find_cart
> @cart.add_product(product)
> redirect_to(:action => ''display_cart'')
> end
>
> Funny enough it now comes with an different error (a step further
> since it''s
> redirected there), even though no code was changed in the mean
> time, saying:
>
> NoMethodError in Store#display_cart
>
> Showing app/views/store/display_cart.rhtml where line #6 raised:
>
> You have a nil object when you didn''t expect it!
> The error occured while evaluating nil.product
>
> Extracted source (around line #6):
>
> 3: <table>
> 4: <%
> 5: for item in @items
> 6: product = item.product
> 7: -%>
> 8: <tr>
> 9: <td><%= item.quantity %></td>
>
>
> I can''t help to think that an initial value is not set somewhere,
> since it
> keep talking about a nil object.
>
> Looking forward to your response.
>
> Kind Regards,
>
> Gerard.
>
> On Friday 25 November 2005 20:35, Craig Webster tried to type
> something like:
>> On 25 Nov 2005, at 16:32, Gerard wrote:
>>> I''m running into the following error:
>>>
>>> NoMethodError in Store#add_to_cart
>>>
>>> You have a nil object when you didn''t expect it!
>>> The error occured while evaluating nil.product_id
>>>
>>> Can somebody help a Rails newby out, where to start?
>>
>> Post your method (add_to_cart) body please. I''m guessing that
it''s
>> something to do with you instanciating the LineItem object but
can''t
>> tell for sure.
>>
>> Yours,
>> Craig
>> --
>> Craig Webster | t: +44 (0)131 516 8595 | e:
craig-07VhxHapISisTnJN9+BGXg@public.gmane.org
>> Xeriom.NET | f: +44 (0)709 287 1902 | w: http://xeriom.net
>>
>>
>>
>> _______________________________________________
>> Rails mailing list
>> Rails-1W37MKcQCpIf0INCOvqR/iCwEArCW2h5@public.gmane.org
>> http://lists.rubyonrails.org/mailman/listinfo/rails
>
> --
> $biz = http://www.gp-net.nl ;
> $fun = http://www.mrmental.com ;
> ~
> ~
> :wq!
>
> _______________________________________________
> Rails mailing list
> Rails-1W37MKcQCpIf0INCOvqR/iCwEArCW2h5@public.gmane.org
> http://lists.rubyonrails.org/mailman/listinfo/rails
Craig,
Below the display_cart method:
def display_cart
@cart = find_cart
@items = @cart.items
end
No to exiting IMHO.
Thanx
Regards,
Gerard.
On Saturday 26 November 2005 12:49, Craig Webster tried to type something
like:> On 26 Nov 2005, at 10:24, Gerard J. Petersen wrote:
> > Funny enough it now comes with an different error (a step further
> > since it''s
> > redirected there), even though no code was changed in the mean
> > time, saying:
> >
> > NoMethodError in Store#display_cart
>
> Could you post your display_cart method here? The change you mention
> seems to imply that the add_to_cart method is working now so we
> should concentrate our efforts towards the code that makes the app cry.
>
> Yours,
> Craig
> --
> Craig Webster | t: +44 (0)131 516 8595 | e:
craig-07VhxHapISisTnJN9+BGXg@public.gmane.org
> Xeriom.NET | f: +44 (0)709 287 1902 | w: http://xeriom.net
--
$biz = http://www.gp-net.nl ;
$fun = http://www.mrmental.com ;
~
~
:wq!
Derek,
This is the display_cart method.
def display_cart
@cart = find_cart
@items = @cart.items
end
It feels like an initial setting is missing. In app/controllers/application.rb
The following is set.
class ApplicationController < ActionController::Base
model :cart
model :line_item
end
I''ll try your debugging suggestions and get back to you. BTW, what does
the
''p'' invoke/stand for in the @...inspect lines.
Thanx a lot
Regards,
Gerard.
On Saturday 26 November 2005 13:22, Derek Chesterfield tried to type something
like:> It sounds like @items is not getting set. Check your display_cart
> method in your store_controlled.rb. It should be something like:
>
> def display_cart
> @items=@cart.items
> if @items.empty?
> redirect_to_index ''Your cart is
empty''
> end
> if params[:context]==:checkout
> render :layout => false
> end
> end
>
> If you are still stuck, put in some debugging lines to see what''s
> going on, e.g.
>
> def display_cart
> @items=@cart.items
> p @cart.inspect
> p @items.inspect
>
> and see what''s displayed in Webrick''s log.
>
> On 26 Nov 2005, at 10:24am, Gerard J. Petersen wrote:
> > Craig,
> >
> > First, thanx for the response. Below is the add_to_cart action.
> >
> > def add_to_cart
> > product = Product.find(params[:id])
> > @cart = find_cart
> > @cart.add_product(product)
> > redirect_to(:action => ''display_cart'')
> > end
> >
> > Funny enough it now comes with an different error (a step further
> > since it''s
> > redirected there), even though no code was changed in the mean
> > time, saying:
> >
> > NoMethodError in Store#display_cart
> >
> > Showing app/views/store/display_cart.rhtml where line #6 raised:
> >
> > You have a nil object when you didn''t expect it!
> > The error occured while evaluating nil.product
> >
> > Extracted source (around line #6):
> >
> > 3: <table>
> > 4: <%
> > 5: for item in @items
> > 6: product = item.product
> > 7: -%>
> > 8: <tr>
> > 9: <td><%= item.quantity %></td>
> >
> >
> > I can''t help to think that an initial value is not set
somewhere,
> > since it
> > keep talking about a nil object.
> >
> > Looking forward to your response.
> >
> > Kind Regards,
> >
> > Gerard.
> >
> > On Friday 25 November 2005 20:35, Craig Webster tried to type
> >
> > something like:
> >> On 25 Nov 2005, at 16:32, Gerard wrote:
> >>> I''m running into the following error:
> >>>
> >>> NoMethodError in Store#add_to_cart
> >>>
> >>> You have a nil object when you didn''t expect it!
> >>> The error occured while evaluating nil.product_id
> >>>
> >>> Can somebody help a Rails newby out, where to start?
> >>
> >> Post your method (add_to_cart) body please. I''m guessing
that it''s
> >> something to do with you instanciating the LineItem object but
can''t
> >> tell for sure.
> >>
> >> Yours,
> >> Craig
> >> --
> >> Craig Webster | t: +44 (0)131 516 8595 | e:
craig-07VhxHapISisTnJN9+BGXg@public.gmane.org
> >> Xeriom.NET | f: +44 (0)709 287 1902 | w: http://xeriom.net
> >>
> >>
> >>
> >> _______________________________________________
> >> Rails mailing list
> >> Rails-1W37MKcQCpIf0INCOvqR/iCwEArCW2h5@public.gmane.org
> >> http://lists.rubyonrails.org/mailman/listinfo/rails
> >
> > --
> > $biz = http://www.gp-net.nl ;
> > $fun = http://www.mrmental.com ;
> > ~
> > ~
> >
> > :wq!
> >
> > _______________________________________________
> > Rails mailing list
> > Rails-1W37MKcQCpIf0INCOvqR/iCwEArCW2h5@public.gmane.org
> > http://lists.rubyonrails.org/mailman/listinfo/rails
--
$biz = http://www.gp-net.nl ;
$fun = http://www.mrmental.com ;
~
~
:wq!
Craig,
First, thanx for the response. Below is the add_to_cart action.
def add_to_cart
product = Product.find(params[:id])
@cart = find_cart
@cart.add_product(product)
redirect_to(:action => ''display_cart'')
end
Funny enough it now comes with an different error (a step further since
it''s
redirected there), even though no code was changed in the mean time, saying:
NoMethodError in Store#display_cart
Showing app/views/store/display_cart.rhtml where line #6 raised:
You have a nil object when you didn''t expect it!
The error occured while evaluating nil.product
Extracted source (around line #6):
3: <table>
4: <%
5: for item in @items
6: product = item.product
7: -%>
8: <tr>
9: <td><%= item.quantity %></td>
I can''t help to think that an initial value is not set somewhere, since
it
keep talking about a nil object.
Looking forward to your response.
Kind Regards,
Gerard.
On Friday 25 November 2005 20:35, Craig Webster tried to type something
like:> On 25 Nov 2005, at 16:32, Gerard wrote:
> > I''m running into the following error:
> >
> > NoMethodError in Store#add_to_cart
> >
> > You have a nil object when you didn''t expect it!
> > The error occured while evaluating nil.product_id
> >
> > Can somebody help a Rails newby out, where to start?
>
> Post your method (add_to_cart) body please. I''m guessing that
it''s
> something to do with you instanciating the LineItem object but
can''t
> tell for sure.
>
> Yours,
> Craig
> --
> Craig Webster | t: +44 (0)131 516 8595 | e:
craig-07VhxHapISisTnJN9+BGXg@public.gmane.org
> Xeriom.NET | f: +44 (0)709 287 1902 | w: http://xeriom.net
>
>
>
> _______________________________________________
> Rails mailing list
> Rails-1W37MKcQCpIf0INCOvqR/iCwEArCW2h5@public.gmane.org
> http://lists.rubyonrails.org/mailman/listinfo/rails
--
"Who cares if it doesn''t do anything? It was made with our new
Triple-Iso-Bifurcated-Krypton-Gate-MOS process ..."
My $Grtz =~ Gerard;
~
:wq!
Craig,
Below the display_cart method:
def display_cart
@cart = find_cart
@items = @cart.items
end
No to exiting IMHO.
Thanx
Regards,
Gerard.
On Saturday 26 November 2005 12:49, Craig Webster tried to type something
like:> On 26 Nov 2005, at 10:24, Gerard J. Petersen wrote:
> > Funny enough it now comes with an different error (a step further
> > since it''s
> > redirected there), even though no code was changed in the mean
> > time, saying:
> >
> > NoMethodError in Store#display_cart
>
> Could you post your display_cart method here? The change you mention
> seems to imply that the add_to_cart method is working now so we
> should concentrate our efforts towards the code that makes the app cry.
>
> Yours,
> Craig
> --
> Craig Webster | t: +44 (0)131 516 8595 | e:
craig-07VhxHapISisTnJN9+BGXg@public.gmane.org
> Xeriom.NET | f: +44 (0)709 287 1902 | w: http://xeriom.net
--
$biz = http://www.gp-net.nl ;
$fun = http://www.mrmental.com ;
~
~
:wq!
Derek,
This is the display_cart method.
def display_cart
@cart = find_cart
@items = @cart.items
end
It feels like an initial setting is missing. In app/controllers/application.rb
The following is set.
class ApplicationController < ActionController::Base
model :cart
model :line_item
end
I''ll try your debugging suggestions and get back to you. BTW, what does
the
''p'' invoke/stand for in the @...inspect lines.
Thanx a lot
Regards,
Gerard.
On Saturday 26 November 2005 13:22, Derek Chesterfield tried to type something
like:> It sounds like @items is not getting set. Check your display_cart
> method in your store_controlled.rb. It should be something like:
>
> def display_cart
> @items=@cart.items
> if @items.empty?
> redirect_to_index ''Your cart is
empty''
> end
> if params[:context]==:checkout
> render :layout => false
> end
> end
>
> If you are still stuck, put in some debugging lines to see what''s
> going on, e.g.
>
> def display_cart
> @items=@cart.items
> p @cart.inspect
> p @items.inspect
>
> and see what''s displayed in Webrick''s log.
>
> On 26 Nov 2005, at 10:24am, Gerard J. Petersen wrote:
> > Craig,
> >
> > First, thanx for the response. Below is the add_to_cart action.
> >
> > def add_to_cart
> > product = Product.find(params[:id])
> > @cart = find_cart
> > @cart.add_product(product)
> > redirect_to(:action => ''display_cart'')
> > end
> >
> > Funny enough it now comes with an different error (a step further
> > since it''s
> > redirected there), even though no code was changed in the mean
> > time, saying:
> >
> > NoMethodError in Store#display_cart
> >
> > Showing app/views/store/display_cart.rhtml where line #6 raised:
> >
> > You have a nil object when you didn''t expect it!
> > The error occured while evaluating nil.product
> >
> > Extracted source (around line #6):
> >
> > 3: <table>
> > 4: <%
> > 5: for item in @items
> > 6: product = item.product
> > 7: -%>
> > 8: <tr>
> > 9: <td><%= item.quantity %></td>
> >
> >
> > I can''t help to think that an initial value is not set
somewhere,
> > since it
> > keep talking about a nil object.
> >
> > Looking forward to your response.
> >
> > Kind Regards,
> >
> > Gerard.
> >
> > On Friday 25 November 2005 20:35, Craig Webster tried to type
> >
> > something like:
> >> On 25 Nov 2005, at 16:32, Gerard wrote:
> >>> I''m running into the following error:
> >>>
> >>> NoMethodError in Store#add_to_cart
> >>>
> >>> You have a nil object when you didn''t expect it!
> >>> The error occured while evaluating nil.product_id
> >>>
> >>> Can somebody help a Rails newby out, where to start?
> >>
> >> Post your method (add_to_cart) body please. I''m guessing
that it''s
> >> something to do with you instanciating the LineItem object but
can''t
> >> tell for sure.
> >>
> >> Yours,
> >> Craig
> >> --
> >> Craig Webster | t: +44 (0)131 516 8595 | e:
craig-07VhxHapISisTnJN9+BGXg@public.gmane.org
> >> Xeriom.NET | f: +44 (0)709 287 1902 | w: http://xeriom.net
> >>
> >>
> >>
> >> _______________________________________________
> >> Rails mailing list
> >> Rails-1W37MKcQCpIf0INCOvqR/iCwEArCW2h5@public.gmane.org
> >> http://lists.rubyonrails.org/mailman/listinfo/rails
> >
> > --
> > $biz = http://www.gp-net.nl ;
> > $fun = http://www.mrmental.com ;
> > ~
> > ~
> >
> > :wq!
> >
> > _______________________________________________
> > Rails mailing list
> > Rails-1W37MKcQCpIf0INCOvqR/iCwEArCW2h5@public.gmane.org
> > http://lists.rubyonrails.org/mailman/listinfo/rails
--
$biz = http://www.gp-net.nl ;
$fun = http://www.mrmental.com ;
~
~
:wq!
On 26 Nov 2005, at 13:43, Gerard J. Petersen wrote:> Below the display_cart method: > > def display_cart > @cart = find_cart > @items = @cart.items > endDoes your Cart model initialise the items attribute? Yours, Craig -- Craig Webster | t: +44 (0)131 516 8595 | e: craig-07VhxHapISisTnJN9+BGXg@public.gmane.org Xeriom.NET | f: +44 (0)709 287 1902 | w: http://xeriom.net
Derek,
This is the display_cart method.
def display_cart
@cart = find_cart
@items = @cart.items
end
It feels like an initial setting is missing. In app/controllers/application.rb
The following is set.
class ApplicationController < ActionController::Base
model :cart
model :line_item
end
I''ll try your debugging suggestions and get back to you. BTW, what does
the
''p'' invoke/stand for in the @...inspect lines.
Thanx a lot
Regards,
Gerard.
On Saturday 26 November 2005 13:22, Derek Chesterfield tried to type something
like:> It sounds like @items is not getting set. Check your display_cart
> method in your store_controlled.rb. It should be something like:
>
> def display_cart
> @items=@cart.items
> if @items.empty?
> redirect_to_index ''Your cart is
empty''
> end
> if params[:context]==:checkout
> render :layout => false
> end
> end
>
> If you are still stuck, put in some debugging lines to see what''s
> going on, e.g.
>
> def display_cart
> @items=@cart.items
> p @cart.inspect
> p @items.inspect
>
> and see what''s displayed in Webrick''s log.
>
> On 26 Nov 2005, at 10:24am, Gerard J. Petersen wrote:
> > Craig,
> >
> > First, thanx for the response. Below is the add_to_cart action.
> >
> > def add_to_cart
> > product = Product.find(params[:id])
> > @cart = find_cart
> > @cart.add_product(product)
> > redirect_to(:action => ''display_cart'')
> > end
> >
> > Funny enough it now comes with an different error (a step further
> > since it''s
> > redirected there), even though no code was changed in the mean
> > time, saying:
> >
> > NoMethodError in Store#display_cart
> >
> > Showing app/views/store/display_cart.rhtml where line #6 raised:
> >
> > You have a nil object when you didn''t expect it!
> > The error occured while evaluating nil.product
> >
> > Extracted source (around line #6):
> >
> > 3: <table>
> > 4: <%
> > 5: for item in @items
> > 6: product = item.product
> > 7: -%>
> > 8: <tr>
> > 9: <td><%= item.quantity %></td>
> >
> >
> > I can''t help to think that an initial value is not set
somewhere,
> > since it
> > keep talking about a nil object.
> >
> > Looking forward to your response.
> >
> > Kind Regards,
> >
> > Gerard.
> >
> > On Friday 25 November 2005 20:35, Craig Webster tried to type
> >
> > something like:
> >> On 25 Nov 2005, at 16:32, Gerard wrote:
> >>> I''m running into the following error:
> >>>
> >>> NoMethodError in Store#add_to_cart
> >>>
> >>> You have a nil object when you didn''t expect it!
> >>> The error occured while evaluating nil.product_id
> >>>
> >>> Can somebody help a Rails newby out, where to start?
> >>
> >> Post your method (add_to_cart) body please. I''m guessing
that it''s
> >> something to do with you instanciating the LineItem object but
can''t
> >> tell for sure.
> >>
> >> Yours,
> >> Craig
> >> --
> >> Craig Webster | t: +44 (0)131 516 8595 | e:
craig-07VhxHapISisTnJN9+BGXg@public.gmane.org
> >> Xeriom.NET | f: +44 (0)709 287 1902 | w: http://xeriom.net
> >>
> >>
> >>
> >> _______________________________________________
> >> Rails mailing list
> >> Rails-1W37MKcQCpIf0INCOvqR/iCwEArCW2h5@public.gmane.org
> >> http://lists.rubyonrails.org/mailman/listinfo/rails
> >
> > --
> > $biz = http://www.gp-net.nl ;
> > $fun = http://www.mrmental.com ;
> > ~
> > ~
> >
> > :wq!
> >
> > _______________________________________________
> > Rails mailing list
> > Rails-1W37MKcQCpIf0INCOvqR/iCwEArCW2h5@public.gmane.org
> > http://lists.rubyonrails.org/mailman/listinfo/rails
--
~
~
:wq!
_______________________________________________
Rails mailing list
Rails-1W37MKcQCpIf0INCOvqR/iCwEArCW2h5@public.gmane.org
http://lists.rubyonrails.org/mailman/listinfo/rails
Craig, This, as far as I understand it, is done voor both Admin and Store controller in the application.rb. See below: class ApplicationController < ActionController::Base model :cart model :line_item end On Saturday 26 November 2005 15:25, Craig Webster tried to type something like:> On 26 Nov 2005, at 13:43, Gerard J. Petersen wrote: > > Below the display_cart method: > > > > def display_cart > > @cart = find_cart > > @items = @cart.items > > end > > Does your Cart model initialise the items attribute? > > Yours, > Craig > -- > Craig Webster | t: +44 (0)131 516 8595 | e: craig-07VhxHapISisTnJN9+BGXg@public.gmane.org > Xeriom.NET | f: +44 (0)709 287 1902 | w: http://xeriom.net > > > > _______________________________________________ > Rails mailing list > Rails-1W37MKcQCpIf0INCOvqR/iCwEArCW2h5@public.gmane.org > http://lists.rubyonrails.org/mailman/listinfo/rails-- "Who cares if it doesn''t do anything? It was made with our new Triple-Iso-Bifurcated-Krypton-Gate-MOS process ..." My $Grtz =~ Gerard; ~ :wq!
On 26 Nov 2005, at 14:34, Gerard wrote:> This, as far as I understand it, is done voor both Admin and Store > controller > in the application.rb. See below: > > class ApplicationController < ActionController::Base > model :cart > model :line_item > endThis makes sure that the models are available to your application when it tries to restore the session. You still need to set the variables to an initial value in Cart as shown in page 84, listing "File 76." After this is done you may need to clear out your ruby sessions. Yours, Craig -- Craig Webster | t: +44 (0)131 516 8595 | e: craig-07VhxHapISisTnJN9+BGXg@public.gmane.org Xeriom.NET | f: +44 (0)709 287 1902 | w: http://xeriom.net
Craig,
Thanx again for your patience. The variables are being set. When I put the
following code (page 88) inplace, it seems to work ok this time:
def add_product(product)
item = @items.find {|i| i.product_id == product.id}
if item
item.quantity += 1
else
items = LineItem.for_product(product)
@items << item
end
@total_price += product.price
end
Can the ruby session info mess with this, because earlier this didn''t
work and
now it does. Note: I now also restarted webrick, removed the ruby session,
and remove the cookie in the browser.
I now end up with the display_cart method that doesn''t work.
NoMethodError in Store#display_cart
Showing app/views/store/display_cart.rhtml where line #6 raised:
You have a nil object when you didn''t expect it!
The error occured while evaluating nil.product
Two more Q''s:
- How does it get to the object nil.product?
- Is there a way to enable extensive logging, because logfiles are very
usefull.
Thanx very much again for your feedback!
Regards,
Gerard.
On Saturday 26 November 2005 16:58, Craig Webster tried to type something
like:> On 26 Nov 2005, at 14:34, Gerard wrote:
> > This, as far as I understand it, is done voor both Admin and Store
> > controller
> > in the application.rb. See below:
> >
> > class ApplicationController < ActionController::Base
> > model :cart
> > model :line_item
> > end
>
> This makes sure that the models are available to your application
> when it tries to restore the session. You still need to set the
> variables to an initial value in Cart as shown in page 84, listing
> "File 76."
>
> After this is done you may need to clear out your ruby sessions.
>
> Yours,
> Craig
> --
> Craig Webster | t: +44 (0)131 516 8595 | e:
craig-07VhxHapISisTnJN9+BGXg@public.gmane.org
> Xeriom.NET | f: +44 (0)709 287 1902 | w: http://xeriom.net
>
>
>
> _______________________________________________
> Rails mailing list
> Rails-1W37MKcQCpIf0INCOvqR/iCwEArCW2h5@public.gmane.org
> http://lists.rubyonrails.org/mailman/listinfo/rails
--
"Who cares if it doesn''t do anything? It was made with our new
Triple-Iso-Bifurcated-Krypton-Gate-MOS process ..."
My $Grtz =~ Gerard;
~
:wq!
Craig,
Solved it! It was a friggin'' typo.
At "->" the first word shouldn''t be plural. I humbly thank
you for spending
your precious time on my human error .. @-)
Kind regards,
Gerard.
def add_product(product)
item = @items.find {|i| i.product_id == product.id}
if item
item.quantity += 1
else
-> items = LineItem.for_product(product)
@items << item
end
@total_price += product.price
end
On Saturday 26 November 2005 16:58, Craig Webster tried to type something
like:> On 26 Nov 2005, at 14:34, Gerard wrote:
> > This, as far as I understand it, is done voor both Admin and Store
> > controller
> > in the application.rb. See below:
> >
> > class ApplicationController < ActionController::Base
> > model :cart
> > model :line_item
> > end
>
> This makes sure that the models are available to your application
> when it tries to restore the session. You still need to set the
> variables to an initial value in Cart as shown in page 84, listing
> "File 76."
>
> After this is done you may need to clear out your ruby sessions.
>
> Yours,
> Craig
> --
> Craig Webster | t: +44 (0)131 516 8595 | e:
craig-07VhxHapISisTnJN9+BGXg@public.gmane.org
> Xeriom.NET | f: +44 (0)709 287 1902 | w: http://xeriom.net
>
>
>
> _______________________________________________
> Rails mailing list
> Rails-1W37MKcQCpIf0INCOvqR/iCwEArCW2h5@public.gmane.org
> http://lists.rubyonrails.org/mailman/listinfo/rails
--
"Who cares if it doesn''t do anything? It was made with our new
Triple-Iso-Bifurcated-Krypton-Gate-MOS process ..."
My $Grtz =~ Gerard;
~
:wq!