Rails - Sep 2010 - Working in install acts_as_commentable, On create, error: "unknown attribute: book_id"

Hello, I''m working to install the acts_as_commentable plugin on my
Rails 3 app.

After adding "acts_as_commentable" to my book model, I then added a
comment form on my book show view:

<% form_for(@comment) do|f| %>
  <%= f.hidden_field :book_id %>
  <%= f.label :comment %><br />
  <%= f.text_area :comment %>
  <%= f.submit "Post Comment" %>
<% end %>

Then in the controller (comments_controller.rb),
  def create
    @comment = Comment.new(params[:comment])
    Book.comments.create(:title => "First comment.", :comment =>
"This
is the first comment.")
  end

Then when submitting a comment, it returns the error:  "unknown
attribute: book_id"

From the log:
  Processing by CommentsController#create as HTML
  Parameters:
{"comment"=>{"comment"=>"WOOOW",
"book_id"=>"32"},
"commit"=>"Post Comment",
"authenticity_token"=>"5YbtEMpoQL1e9coAIJBOm0WD55vB2XRZMJa4MMAR1YI=",
"utf8"=>"✓"}
Completed   in 11ms

ActiveRecord::UnknownAttributeError (unknown attribute: book_id):
  app/controllers/comments_controller.rb:3:in `new''
  app/controllers/comments_controller.rb:3:in `create''


Suggestions?

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i made an example app for kelp kelp , it has threaded comments and
polymorphic associations, tested on rails 3, you can see it at

http://github.com/rbritom/Simple_polymorphic_nested_comments

watch the code and do it your self, i think is better than using that gem,
since is really easy to achieve with out the gem.

I added lots of comments so that you can understand whats going and added
some ajax, if you need more explanations just ask.

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Thanks, that looks interesting and helpful... Couple comments:

What is lft rgt for in the database?

Also, proyects should be spelled projects....

Does nesting currently work is are you still working on implementing
it?

I''d still be interested in knowing y I''m hitting the bug
above, any
ideas?



On Sep 21, 1:24 pm, radhames brito
<rbri...-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
wrote:
> i made an example app for kelp kelp , it has threaded comments and
> polymorphic associations, tested on rails 3, you can see it at
>
> http://github.com/rbritom/Simple_polymorphic_nested_comments
>
> watch the code and do it your self, i think is better than using that gem,
> since is really easy to achieve with out the gem.
>
> I added lots of comments so that you can understand whats going and added
> some ajax, if you need more explanations just ask.
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oh , awsome nested set gem arrenges item like a tree , to is like


                                             root
                                                |
                                  ________|__________
                           left  |            item             | right
                      ______ |__           |      ______|______



you see item has a left and right sibling, the gem saves ,   the parent_id
of item , in this case root and the item of the item to the left and to the
right

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On Tue, Sep 21, 2010 at 4:49 PM, radhames brito
<rbritom-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org> wrote:
> oh , awesome nested set gem arranges item like a tree , to is like
>
>
>                                              root
>                                                 |
>                                   ________|__________
>                            left  |            item             | right
>                       ______ |__           |      ______|______
>
>
>
> you see item has a left and right sibling, the gem saves    the parent_id
> of the item , in this case root and the id of the item to the left and to
> the right
>
>
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Very interesting, new to me...

Does nesting currently work in your example app OR are you still
working on implementing
it? I''m trying to decide if nesting isn''t yet done, if I
should wait
until it''s up and working?

On Sep 21, 1:49 pm, radhames brito
<rbri...-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
wrote:
> oh , awsome nested set gem arrenges item like a tree , to is like
>
>                                              root
>                                                 |
>                                   ________|__________
>                            left  |            item             | right
>                       ______ |__           |      ______|______
>
> you see item has a left and right sibling, the gem saves ,   the parent_id
> of item , in this case root and the item of the item to the left and to the
> right
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everything works it only lacks the comments

On Tue, Sep 21, 2010 at 6:52 PM, nobosh
<bhellman1-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org> wrote:
> Very interesting, new to me...
>
> Does nesting currently work in your example app OR are you still
> working on implementing
> it? I''m trying to decide if nesting isn''t yet done, if I
should wait
> until it''s up and working?
>
> On Sep 21, 1:49 pm, radhames brito
<rbri...-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org> wrote:
> > oh , awsome nested set gem arrenges item like a tree , to is like
> >
> >                                              root
> >                                                 |
> >                                   ________|__________
> >                            left  |            item             | right
> >                       ______ |__           |      ______|______
> >
> > you see item has a left and right sibling, the gem saves ,   the
> parent_id
> > of item , in this case root and the item of the item to the left and
to
> the
> > right
>
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>
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im going to update in 5 minutes , i added ajax pagination

On Tue, Sep 21, 2010 at 8:02 PM, radhames brito
<rbritom-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org> wrote:
> everything works it only lacks the comments
>
>
> On Tue, Sep 21, 2010 at 6:52 PM, nobosh
<bhellman1-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org> wrote:
>
>> Very interesting, new to me...
>>
>> Does nesting currently work in your example app OR are you still
>> working on implementing
>> it? I''m trying to decide if nesting isn''t yet done,
if I should wait
>> until it''s up and working?
>>
>> On Sep 21, 1:49 pm, radhames brito
<rbri...-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org> wrote:
>> > oh , awsome nested set gem arrenges item like a tree , to is like
>> >
>> >                                              root
>> >                                                 |
>> >                                   ________|__________
>> >                            left  |            item             |
right
>> >                       ______ |__           |      ______|______
>> >
>> > you see item has a left and right sibling, the gem saves ,   the
>> parent_id
>> > of item , in this case root and the item of the item to the left
and to
>> the
>> > right
>>
>> --
>> You received this message because you are subscribed to the Google
Groups
>> "Ruby on Rails: Talk" group.
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>> .
>> For more options, visit this group at
>> http://groups.google.com/group/rubyonrails-talk?hl=en.
>>
>>
>
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In 15 minutes im going to add ajax to the destroy action and a loading gif

On Tue, Sep 21, 2010 at 8:03 PM, radhames brito
<rbritom-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org> wrote:
> im going to update in 5 minutes , i added ajax pagination
>
>
> On Tue, Sep 21, 2010 at 8:02 PM, radhames brito
<rbritom-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org> wrote:
>
>> everything works it only lacks the comments
>>
>>
>> On Tue, Sep 21, 2010 at 6:52 PM, nobosh
<bhellman1-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org> wrote:
>>
>>> Very interesting, new to me...
>>>
>>> Does nesting currently work in your example app OR are you still
>>> working on implementing
>>> it? I''m trying to decide if nesting isn''t yet
done, if I should wait
>>> until it''s up and working?
>>>
>>> On Sep 21, 1:49 pm, radhames brito
<rbri...-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org> wrote:
>>> > oh , awsome nested set gem arrenges item like a tree , to is
like
>>> >
>>> >                                              root
>>> >                                                 |
>>> >                                   ________|__________
>>> >                            left  |            item            
| right
>>> >                       ______ |__           |     
______|______
>>> >
>>> > you see item has a left and right sibling, the gem saves ,  
the
>>> parent_id
>>> > of item , in this case root and the item of the item to the
left and to
>>> the
>>> > right
>>>
>>> --
>>> 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
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>>>
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>>> .
>>> For more options, visit this group at
>>> http://groups.google.com/group/rubyonrails-talk?hl=en.
>>>
>>>
>>
>
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Nice can''t wait to try it out... Why not turn this into a Rails 3
Gem / plugin?

On Sep 21, 5:10 pm, radhames brito
<rbri...-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
wrote:
> In 15 minutes im going to add ajax to the destroy action and a loading gif
>
>
>
> On Tue, Sep 21, 2010 at 8:03 PM, radhames brito
<rbri...-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org> wrote:
> > im going to update in 5 minutes , i added ajax pagination
>
> > On Tue, Sep 21, 2010 at 8:02 PM, radhames brito
<rbri...-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org> wrote:
>
> >> everything works it only lacks the comments
>
> >> On Tue, Sep 21, 2010 at 6:52 PM, nobosh
<bhellm...-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org> wrote:
>
> >>> Very interesting, new to me...
>
> >>> Does nesting currently work in your example app OR are you
still
> >>> working on implementing
> >>> it? I''m trying to decide if nesting isn''t
yet done, if I should wait
> >>> until it''s up and working?
>
> >>> On Sep 21, 1:49 pm, radhames brito
<rbri...-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org> wrote:
> >>> > oh , awsome nested set gem arrenges item like a tree , to
is like
>
> >>> >                                              root
> >>> >                                                 |
> >>> >                                   ________|__________
> >>> >                            left  |            item      
      | right
> >>> >                       ______ |__           |    
 ______|______
>
> >>> > you see item has a left and right sibling, the gem saves
,   the
> >>> parent_id
> >>> > of item , in this case root and the item of the item to
the left and to
> >>> the
> >>> > right
>
> >>> --
> >>> 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-/JYPxA39Uh4Ykp1iOSErHA@public.gmane.orgm.
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ill think about it, i have never done one before.

On Tue, Sep 21, 2010 at 8:17 PM, nobosh
<bhellman1-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org> wrote:
> Nice can''t wait to try it out... Why not turn this into a Rails 3
> Gem / plugin?
>
> On Sep 21, 5:10 pm, radhames brito
<rbri...-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org> wrote:
> > In 15 minutes im going to add ajax to the destroy action and a loading
> gif
> >
> >
> >
> > On Tue, Sep 21, 2010 at 8:03 PM, radhames brito
<rbri...-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
> wrote:
> > > im going to update in 5 minutes , i added ajax pagination
> >
> > > On Tue, Sep 21, 2010 at 8:02 PM, radhames brito
<rbri...-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
> wrote:
> >
> > >> everything works it only lacks the comments
> >
> > >> On Tue, Sep 21, 2010 at 6:52 PM, nobosh
<bhellm...-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org> wrote:
> >
> > >>> Very interesting, new to me...
> >
> > >>> Does nesting currently work in your example app OR are
you still
> > >>> working on implementing
> > >>> it? I''m trying to decide if nesting
isn''t yet done, if I should wait
> > >>> until it''s up and working?
> >
> > >>> On Sep 21, 1:49 pm, radhames brito
<rbri...-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org> wrote:
> > >>> > oh , awsome nested set gem arrenges item like a tree
, to is like
> >
> > >>> >                                              root
> > >>> >                                                 |
> > >>> >                                  
________|__________
> > >>> >                            left  |            item  
|
> right
> > >>> >                       ______ |__           |     
______|______
> >
> > >>> > you see item has a left and right sibling, the gem
saves ,   the
> > >>> parent_id
> > >>> > of item , in this case root and the item of the item
to the left
> and to
> > >>> the
> > >>> > right
> >
> > >>> --
> > >>> 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
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> e@googlegroups.com>
> > >>> .
> > >>> For more options, visit this group at
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>
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check it out i cant think of any more features to add. See if you can think
of something   =D

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Very nice thanks, I''m trying it out now.

don''t really have the need for pagination but it''s helpful as
a
learning tool/tutorial of sorts...

regarding a feature to add, I can actually think of one very common
feature, as seen on Facebook. If you have over 3 comments, to only
show the latest 2 comments, and then have a ajax link "View all X
comments" which when clicked loads/injects the remaining comments into
the comment list. That''s a pretty important one! A less important one,
is being able to LIKE a comment.

Sound interesting?

On Sep 21, 6:16 pm, radhames brito
<rbri...-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
wrote:
> check it out i cant think of any more features to add. See if you can think
> of something   =D
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To get your code working in my app I needed to:
@comments = @article.comments.roots.order("created_at
DESC").paginate( :page => params[:page]||1,:per_page => 5)
REMOVE roots in books_controller.rb:
@comments = @article.comments.order("created_at DESC").paginate( :page
=> params[:page]||1,:per_page => 5)

And in comment.rb:
COMMENT OUT #acts_as_nested_set


Otherwise I get the error on the books show page: "uninitialized
constant Book::Comment"

Is there a GEM that needs to be installed? Or maybe this isn''t
supported for Rails 3?


On Sep 21, 7:57 pm, nobosh
<bhellm...-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
wrote:
> Very nice thanks, I''m trying it out now.
>
> don''t really have the need for pagination but it''s
helpful as a
> learning tool/tutorial of sorts...
>
> regarding a feature to add, I can actually think of one very common
> feature, as seen on Facebook. If you have over 3 comments, to only
> show the latest 2 comments, and then have a ajax link "View all X
> comments" which when clicked loads/injects the remaining comments into
> the comment list. That''s a pretty important one! A less important
one,
> is being able to LIKE a comment.
>
> Sound interesting?
>
> On Sep 21, 6:16 pm, radhames brito
<rbri...-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org> wrote:
>
>
>
> > check it out i cant think of any more features to add. See if you can
think
> > of something   =D
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It would also be create if

def create
@comment = @commentable.comments.build(params[:comment])

Passed along the current_user as I added user_id to the comments
table :)

On Sep 21, 8:55 pm, nobosh
<bhellm...-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
wrote:
> To get your code working in my app I needed to:
> @comments = @article.comments.roots.order("created_at
> DESC").paginate( :page => params[:page]||1,:per_page => 5)
> REMOVE roots in books_controller.rb:
> @comments = @article.comments.order("created_at DESC").paginate(
:page
> => params[:page]||1,:per_page => 5)
>
> And in comment.rb:
> COMMENT OUT #acts_as_nested_set
>
> Otherwise I get the error on the books show page: "uninitialized
> constant Book::Comment"
>
> Is there a GEM that needs to be installed? Or maybe this isn''t
> supported for Rails 3?
>
> On Sep 21, 7:57 pm, nobosh
<bhellm...-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org> wrote:
>
>
>
> > Very nice thanks, I''m trying it out now.
>
> > don''t really have the need for pagination but it''s
helpful as a
> > learning tool/tutorial of sorts...
>
> > regarding a feature to add, I can actually think of one very common
> > feature, as seen on Facebook. If you have over 3 comments, to only
> > show the latest 2 comments, and then have a ajax link "View all X
> > comments" which when clicked loads/injects the remaining comments
into
> > the comment list. That''s a pretty important one! A less
important one,
> > is being able to LIKE a comment.
>
> > Sound interesting?
>
> > On Sep 21, 6:16 pm, radhames brito
<rbri...-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org> wrote:
>
> > > check it out i cant think of any more features to add. See if you
can think
> > > of something   =D
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oohh very good ones , ill surely put them

On Tue, Sep 21, 2010 at 10:57 PM, nobosh
<bhellman1-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org> wrote:
> Very nice thanks, I''m trying it out now.
>
> don''t really have the need for pagination but it''s
helpful as a
> learning tool/tutorial of sorts...
>
> regarding a feature to add, I can actually think of one very common
> feature, as seen on Facebook. If you have over 3 comments, to only
> show the latest 2 comments, and then have a ajax link "View all X
> comments" which when clicked loads/injects the remaining comments into
> the comment list. That''s a pretty important one! A less important
one,
> is being able to LIKE a comment.
>
> Sound interesting?
>
> On Sep 21, 6:16 pm, radhames brito
<rbri...-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org> wrote:
> > check it out i cant think of any more features to add. See if you can
> think
> > of something   =D
>
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well i left that out because it would make the example a little harder to
follow what i will do is a second example that will integrate users, then
one with users and captcha, i will add funcionality on topp of the existing
one but as a new project so is easy to learn what''s news

On Wed, Sep 22, 2010 at 12:03 AM, nobosh
<bhellman1-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org> wrote:
> It would also be create if
>
> def create
> @comment = @commentable.comments.build(params[:comment])
>
> Passed along the current_user as I added user_id to the comments
> table :)
>
> On Sep 21, 8:55 pm, nobosh
<bhellm...-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org> wrote:
> > To get your code working in my app I needed to:
> > @comments = @article.comments.roots.order("created_at
> > DESC").paginate( :page => params[:page]||1,:per_page => 5)
> > REMOVE roots in books_controller.rb:
> > @comments = @article.comments.order("created_at
DESC").paginate( :page
> > => params[:page]||1,:per_page => 5)
> >
> > And in comment.rb:
> > COMMENT OUT #acts_as_nested_set
> >
> > Otherwise I get the error on the books show page: "uninitialized
> > constant Book::Comment"
> >
> > Is there a GEM that needs to be installed? Or maybe this
isn''t
> > supported for Rails 3?
> >
> > On Sep 21, 7:57 pm, nobosh
<bhellm...-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org> wrote:
> >
> >
> >
> > > Very nice thanks, I''m trying it out now.
> >
> > > don''t really have the need for pagination but
it''s helpful as a
> > > learning tool/tutorial of sorts...
> >
> > > regarding a feature to add, I can actually think of one very
common
> > > feature, as seen on Facebook. If you have over 3 comments, to
only
> > > show the latest 2 comments, and then have a ajax link "View
all X
> > > comments" which when clicked loads/injects the remaining
comments into
> > > the comment list. That''s a pretty important one! A less
important one,
> > > is being able to LIKE a comment.
> >
> > > Sound interesting?
> >
> > > On Sep 21, 6:16 pm, radhames brito
<rbri...-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org> wrote:
> >
> > > > check it out i cant think of any more features to add. See
if you can
> think
> > > > of something   =D
>
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the projet is done i rails three and the awesome nested set is in there as a
plug in, is what does the nesting, if you dont use it the nesting wont work,
can you give me more info on you book model? i want know why is not working

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On Sep 22, 3:48 am, radhames brito
<rbri...-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
wrote:
> the projet is done i rails three and the awesome nested set is in there as
a
> plug in, is what does the nesting, if you dont use it the nesting wont
work,
> can you give me more info on you book model? i want know why is not working
Is the plug-in in the GEM file? I''m not seeing it. Could you point it
out so I can add it to my GEM file? If the plugin isn''t via the GEM
file, how do you get it added to the rails 3 app?

Thanks!

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no , plugins go along with the rails app. gems get installed in the computer
your are using and if you take your rails app somewhere else you have to
install all the gems in that other computer, plugins install in the
/vendor/plugin folder in the rails app and they go where ever you app goes,
the result is almost the same but , gems are better if you have several
project using something common, for example , most rails app use
will_paginate so is better to install it as a gem on the pc, if you install
will paginate as a plugin you would have a copy of will_paginate in each
app, and also your app would grow as you put plugins in them.

At then i installed awesome nested set as a plugin in the vendors/plugin
directory because i needed to hack it, is not a good idea to hack a gem as
gems as i explained are shared by all the apps in that computer.

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I was able to use
gem ''nested_set''
Which got it working, now I just need to understand the rlt, lft
stuff. Thanks - this is great! Looking forward to seeing the updates
on the suggestions above.

On Sep 22, 10:57 am, radhames brito
<rbri...-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
wrote:
> no , plugins go along with the rails app. gems get installed in the
computer
> your are using and if you take your rails app somewhere else you have to
> install all the gems in that other computer, plugins install in the
> /vendor/plugin folder in the rails app and they go where ever you app goes,
> the result is almost the same but , gems are better if you have several
> project using something common, for example , most rails app use
> will_paginate so is better to install it as a gem on the pc, if you install
> will paginate as a plugin you would have a copy of will_paginate in each
> app, and also your app would grow as you put plugins in them.
>
> At then i installed awesome nested set as a plugin in the vendors/plugin
> directory because i needed to hack it, is not a good idea to hack a gem as
> gems as i explained are shared by all the apps in that computer.
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i havent have time to add all the commentaries to the code, i just hop is
useful

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It was incredibly helpful and your commenting was awesome. It''s rare
to see such nice commenting in 2 languages! Thank you!!!

On Sep 22, 1:10 pm, radhames brito
<rbri...-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
wrote:
> i havent have time to add all the commentaries to the code, i just hop is
> useful
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And it still needs more commenting

2010/9/22, nobosh
<bhellman1-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>:
> It was incredibly helpful and your commenting was awesome. It''s
rare
> to see such nice commenting in 2 languages! Thank you!!!
>
> On Sep 22, 1:10 pm, radhames brito
<rbri...-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org> wrote:
>> i havent have time to add all the commentaries to the code, i just hop
is
>> useful
>
> --
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-- 
Enviado desde mi dispositivo móvil

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nobosh wrote:
> I was able to use
> gem ''nested_set''
> Which got it working, now I just need to understand the rlt, lft
> stuff. 
http://dev.mysql.com/tech-resources/articles/hierarchical-data.html

Best,
--
Marnen Laibow-Koser
http://www.marnen.org
marnen-sbuyVjPbboAdnm+yROfE0A@public.gmane.org
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awesome link marnen

On Thu, Sep 23, 2010 at 10:21 AM, Marnen Laibow-Koser
<lists-fsXkhYbjdPsEEoCn2XhGlw@public.gmane.org>wrote:
> nobosh wrote:
> > I was able to use
> > gem ''nested_set''
> > Which got it working, now I just need to understand the rlt, lft
> > stuff.
>
> http://dev.mysql.com/tech-resources/articles/hierarchical-data.html
>
> Best,
> --
> Marnen Laibow-Koser
> http://www.marnen.org
> marnen-sbuyVjPbboAdnm+yROfE0A@public.gmane.org
> --
> Posted via http://www.ruby-forum.com/.
>
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