Rails - Nov 2009 - rails 2.2.3 dirty.rb field_changed? method throwing arg error on creating an obj

I have a new model I''ve just built. It''s associated with
another model
via has_many. I''m trying to create one of these obj''s for the
first
time and I keep getting an Argument Error as follows:

ArgumentError (wrong number of arguments (3 for 0)):
    C:/Ruby/lib/ruby/gems/1.8/gems/activerecord-2.2.3/lib/
active_record/dirty.rb:135:in `field_changed?''

this happens when I try to create the obj, but it''s deep in the rails
codebase and I cant figure out why it''s happening.

I''ve tried both creating the object as part of the association like
this:

self.updates.create()

and directly like this:

update = Update.create() or update = Update.new()

with and without values passed in as a hash and get the same results
every time.

has anyone else seen this?

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On Nov 30, 9:02 pm, lunaclaire
<szager...-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
wrote:
> I have a new model I''ve just built. It''s associated with
another model
> via has_many. I''m trying to create one of these obj''s for
the first
> time and I keep getting an Argument Error as follows:
>
> ArgumentError (wrong number of arguments (3 for 0)):
>     C:/Ruby/lib/ruby/gems/1.8/gems/activerecord-2.2.3/lib/
> active_record/dirty.rb:135:in `field_changed?''
>
> this happens when I try to create the obj, but it''s deep in the
rails
> codebase and I cant figure out why it''s happening.
>
What columns / associations/ methods does your model have ? I''d guess
that one of these is accidentally overriding a core activerecord
method.

Fred
> I''ve tried both creating the object as part of the association
like
> this:
>
> self.updates.create()
>
> and directly like this:
>
> update = Update.create() or update = Update.new()
>
> with and without values passed in as a hash and get the same results
> every time.
>
> has anyone else seen this?
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from the migration that created the table:

    create_table :updates do |t|
      t.integer :update_request_id
      t.integer :change_type
      t.integer :assoc_obj_id
      t.string :field_changed
      t.string :new_value

      t.timestamps
    end

anything pop out there? I did try to name these attribs to avoid a
clash, but perhaps I missed something?

On Nov 30, 2:17 pm, Frederick Cheung
<frederick.che...-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
wrote:
> On Nov 30, 9:02 pm, lunaclaire
<szager...-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org> wrote:
>
> > I have a new model I''ve just built. It''s associated
with another model
> > via has_many. I''m trying to create one of these
obj''s for the first
> > time and I keep getting an Argument Error as follows:
>
> > ArgumentError (wrong number of arguments (3 for 0)):
> >     C:/Ruby/lib/ruby/gems/1.8/gems/activerecord-2.2.3/lib/
> > active_record/dirty.rb:135:in `field_changed?''
>
> > this happens when I try to create the obj, but it''s deep in
the rails
> > codebase and I cant figure out why it''s happening.
>
> What columns / associations/ methods does your model have ? I''d
guess
> that one of these is accidentally overriding a core activerecord
> method.
>
> Fred
>
> > I''ve tried both creating the object as part of the
association like
> > this:
>
> > self.updates.create()
>
> > and directly like this:
>
> > update = Update.create() or update = Update.new()
>
> > with and without values passed in as a hash and get the same results
> > every time.
>
> > has anyone else seen this?
>
>
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sorry... we added to the original migration so that now the attr''s are


      t.integer :update_request_id
      t.integer :change_type
      t.integer :assoc_obj_id
      t.string :field_changed
      t.string :new_value
      t.integer :resolution

      t.timestamps


On Nov 30, 2:27 pm, lunaclaire
<szager...-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
wrote:
> from the migration that created the table:
>
>     create_table :updates do |t|
>       t.integer :update_request_id
>       t.integer :change_type
>       t.integer :assoc_obj_id
>       t.string :field_changed
>       t.string :new_value
>
>       t.timestamps
>     end
>
> anything pop out there? I did try to name these attribs to avoid a
> clash, but perhaps I missed something?
>
> On Nov 30, 2:17 pm, Frederick Cheung
<frederick.che...-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
> wrote:
>
> > On Nov 30, 9:02 pm, lunaclaire
<szager...-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org> wrote:
>
> > > I have a new model I''ve just built. It''s
associated with another model
> > > via has_many. I''m trying to create one of these
obj''s for the first
> > > time and I keep getting an Argument Error as follows:
>
> > > ArgumentError (wrong number of arguments (3 for 0)):
> > >     C:/Ruby/lib/ruby/gems/1.8/gems/activerecord-2.2.3/lib/
> > > active_record/dirty.rb:135:in `field_changed?''
>
> > > this happens when I try to create the obj, but it''s deep
in the rails
> > > codebase and I cant figure out why it''s happening.
>
> > What columns / associations/ methods does your model have ?
I''d guess
> > that one of these is accidentally overriding a core activerecord
> > method.
>
> > Fred
>
> > > I''ve tried both creating the object as part of the
association like
> > > this:
>
> > > self.updates.create()
>
> > > and directly like this:
>
> > > update = Update.create() or update = Update.new()
>
> > > with and without values passed in as a hash and get the same
results
> > > every time.
>
> > > has anyone else seen this?
>
>
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On Nov 30, 11:48 pm, lunaclaire
<szager...-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
wrote:
> sorry... we added to the original migration so that now the attr''s
are
>
>       t.integer :update_request_id
>       t.integer :change_type
>       t.integer :assoc_obj_id
>       t.string :field_changed
>       t.string :new_value
>       t.integer :resolution
>
field_changed is the one (the fact that the error message is talking
about field_changed is a hint in that direction

Fred
>       t.timestamps
>
> On Nov 30, 2:27 pm, lunaclaire
<szager...-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org> wrote:
>
>
>
> > from the migration that created the table:
>
> >     create_table :updates do |t|
> >       t.integer :update_request_id
> >       t.integer :change_type
> >       t.integer :assoc_obj_id
> >       t.string :field_changed
> >       t.string :new_value
>
> >       t.timestamps
> >     end
>
> > anything pop out there? I did try to name these attribs to avoid a
> > clash, but perhaps I missed something?
>
> > On Nov 30, 2:17 pm, Frederick Cheung
<frederick.che...-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
> > wrote:
>
> > > On Nov 30, 9:02 pm, lunaclaire
<szager...-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org> wrote:
>
> > > > I have a new model I''ve just built. It''s
associated with another model
> > > > via has_many. I''m trying to create one of these
obj''s for the first
> > > > time and I keep getting an Argument Error as follows:
>
> > > > ArgumentError (wrong number of arguments (3 for 0)):
> > > >     C:/Ruby/lib/ruby/gems/1.8/gems/activerecord-2.2.3/lib/
> > > > active_record/dirty.rb:135:in `field_changed?''
>
> > > > this happens when I try to create the obj, but it''s
deep in the rails
> > > > codebase and I cant figure out why it''s happening.
>
> > > What columns / associations/ methods does your model have ?
I''d guess
> > > that one of these is accidentally overriding a core activerecord
> > > method.
>
> > > Fred
>
> > > > I''ve tried both creating the object as part of the
association like
> > > > this:
>
> > > > self.updates.create()
>
> > > > and directly like this:
>
> > > > update = Update.create() or update = Update.new()
>
> > > > with and without values passed in as a hash and get the same
results
> > > > every time.
>
> > > > has anyone else seen this?
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OMG, you''re right! Couldnt see the forest for the trees. Thx, Fred!

This didnt show up in any lists I looked at for MagicReservedwords and
such... I might have to find time to walk thru the rils code to see
what other names could clash w method names.

thx again

On Nov 30, 3:55 pm, Frederick Cheung
<frederick.che...-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
wrote:
> On Nov 30, 11:48 pm, lunaclaire
<szager...-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org> wrote:
>
> > sorry... we added to the original migration so that now the
attr''s are
>
> >       t.integer :update_request_id
> >       t.integer :change_type
> >       t.integer :assoc_obj_id
> >       t.string :field_changed
> >       t.string :new_value
> >       t.integer :resolution
>
> field_changed is the one (the fact that the error message is talking
> about field_changed is a hint in that direction
>
> Fred
>
> >       t.timestamps
>
> > On Nov 30, 2:27 pm, lunaclaire
<szager...-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org> wrote:
>
> > > from the migration that created the table:
>
> > >     create_table :updates do |t|
> > >       t.integer :update_request_id
> > >       t.integer :change_type
> > >       t.integer :assoc_obj_id
> > >       t.string :field_changed
> > >       t.string :new_value
>
> > >       t.timestamps
> > >     end
>
> > > anything pop out there? I did try to name these attribs to avoid
a
> > > clash, but perhaps I missed something?
>
> > > On Nov 30, 2:17 pm, Frederick Cheung
<frederick.che...-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
> > > wrote:
>
> > > > On Nov 30, 9:02 pm, lunaclaire
<szager...-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org> wrote:
>
> > > > > I have a new model I''ve just built.
It''s associated with another model
> > > > > via has_many. I''m trying to create one of
these obj''s for the first
> > > > > time and I keep getting an Argument Error as follows:
>
> > > > > ArgumentError (wrong number of arguments (3 for 0)):
> > > > >    
C:/Ruby/lib/ruby/gems/1.8/gems/activerecord-2.2.3/lib/
> > > > > active_record/dirty.rb:135:in `field_changed?''
>
> > > > > this happens when I try to create the obj, but
it''s deep in the rails
> > > > > codebase and I cant figure out why it''s
happening.
>
> > > > What columns / associations/ methods does your model have ?
I''d guess
> > > > that one of these is accidentally overriding a core
activerecord
> > > > method.
>
> > > > Fred
>
> > > > > I''ve tried both creating the object as part of
the association like
> > > > > this:
>
> > > > > self.updates.create()
>
> > > > > and directly like this:
>
> > > > > update = Update.create() or update = Update.new()
>
> > > > > with and without values passed in as a hash and get the
same results
> > > > > every time.
>
> > > > > has anyone else seen this?
>
>
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2009/12/1 lunaclaire
<szagerman-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>:
> OMG, you''re right! Couldnt see the forest for the trees. Thx,
Fred!
>
> This didnt show up in any lists I looked at for MagicReservedwords and
> such... I might have to find time to walk thru the rils code to see
> what other names could clash w method names.
>
> thx again
>
> On Nov 30, 3:55 pm, Frederick Cheung
<frederick.che...-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
> wrote:
>> On Nov 30, 11:48 pm, lunaclaire
<szager...-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org> wrote:
>>
>> > sorry... we added to the original migration so that now the
attr''s are
>>
>> >       t.integer :update_request_id
>> >       t.integer :change_type
>> >       t.integer :assoc_obj_id
>> >       t.string :field_changed
>> >       t.string :new_value
>> >       t.integer :resolution
>>
>> field_changed is the one (the fact that the error message is talking
>> about field_changed is a hint in that direction
>>
>> Fred
I have added field_changed to the list at
http://wiki.rubyonrails.org/rails/pages/reservedwords

Colin

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