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David Kahn

2010-Dec-09 15:53 UTC

Rails 3 Active Record query returns "undefined method `loaded?'' for #<Array:0x126a4c>"

I am getting this error on an rspec test:
undefined method `loaded?'' for #<Array:0x126a4c>

When I call:
Practice.includes("practice_members").all

Practice has_many :practice_members
PracticeMember belongs_to :practice


Practice.all returns:
[#<Practice id: 6, name: "Practice One", created_at:
"2010-12-09 15:40:46",
updated_at: "2010-12-09 15:40:46">]


PracticeMember.all returns:
#<PracticeMember id: 9, practice_id: 6, name_last: "Aaaaz",
name_first:
"Aaaba", name_middle: "Aaabb", created_at: "2010-12-09
15:40:46",
updated_at: "2010-12-09 15:40:46">, #<PracticeMember id: 10,
practice_id: 6,
name_last: "Aaabc", name_first: "Aaabd", name_middle:
"Aaabe", created_at:
"2010-12-09 15:40:46", updated_at: "2010-12-09
15:40:46">]


So the association on practice_id is correct on both practice members. It is
unclear to me why this should be failing... am I missing something?

Thanks,

David

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Ar Chron

2010-Dec-09 16:16 UTC

head link

Re: Rails 3 Active Record query returns "undefined method `loaded?'' for #<Array:0x126a4c>"

David Kahn wrote in post #967449:> I am getting this error on an rspec test:
> undefined method `loaded?'' for #<Array:0x126a4c>
>
> When I call:
> Practice.includes("practice_members").all
>
You aren''t testing what you think you are...

.all returns an array even if it only finds a single instance, and at 
last check, the Array class does not have a loaded? method.

Should your test be using some other method, perhaps empty?

-- 
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David Kahn

2010-Dec-09 17:07 UTC

head link

Re: Re: Rails 3 Active Record query returns "undefined method `loaded?'' for #<Array:0x126a4c>"

On Thu, Dec 9, 2010 at 10:16 AM, Ar Chron
<lists-fsXkhYbjdPsEEoCn2XhGlw@public.gmane.org> wrote:
> David Kahn wrote in post #967449:
> > I am getting this error on an rspec test:
> > undefined method `loaded?'' for #<Array:0x126a4c>
> >
> > When I call:
> > Practice.includes("practice_members").all
> >
>
> You aren''t testing what you think you are...
>
> .all returns an array even if it only finds a single instance, and at
> last check, the Array class does not have a loaded? method.
>
> Should your test be using some other method, perhaps empty?
>
I think I see what you are saying, but I am expecting an array --- I am just
asking for array#size. Method and test are copied below.  The failing line
is at the end of the test. The first line of the test calls the same method
but it passes. I am not calling array#loaded, something in Rails must be
doing so, which is where I am stuck:

class Practice < ActiveRecord::Base
  def self.practice_members
    # global roster, no Demo Practice members included
    if PracticeMember.all.size>0
     
Practice.includes("practice_members").where("name<>''Demo
Practice''").all
    else
      return []
    end
  end
end


  it "can get global practice member roster not including Demo
Practice" do
    assert_equal Practice.practice_members.size, 0 # this passes fine

    practice_member = Factory.create(:practice_member)
    practice_member.practice_id = @practice.id
    practice_member.save
    practice_member = Factory.create(:practice_member)
    practice_member.practice_id = @practice.id
    practice_member.save

    assert_equal Practice.practice_members.size, 2 # this fails ... and note
that Practice.all returns one record with id of "6" and
PracticeMember.all
returns two records with practice_id of "6"
  end


>
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Colin Law

2010-Dec-09 17:20 UTC

head link

Re: Re: Rails 3 Active Record query returns "undefined method `loaded?'' for #<Array:0x126a4c>"

On 9 December 2010 17:07, David Kahn
<dk-rfEMNHKVqOwNic7Bib+Ti1W1rNmOCjRP@public.gmane.org>
wrote:>
>
> On Thu, Dec 9, 2010 at 10:16 AM, Ar Chron
<lists-fsXkhYbjdPsEEoCn2XhGlw@public.gmane.org> wrote:
>>
>> David Kahn wrote in post #967449:
>> > I am getting this error on an rspec test:
>> > undefined method `loaded?'' for #<Array:0x126a4c>
>> >
>> > When I call:
>> > Practice.includes("practice_members").all
>> >
>>
>> You aren''t testing what you think you are...
>>
>> .all returns an array even if it only finds a single instance, and at
>> last check, the Array class does not have a loaded? method.
>>
>> Should your test be using some other method, perhaps empty?
>
> I think I see what you are saying, but I am expecting an array --- I am
just
> asking for array#size. Method and test are copied below.  The failing line
> is at the end of the test. The first line of the test calls the same method
> but it passes. I am not calling array#loaded, something in Rails must be
> doing so, which is where I am stuck:
>
> class Practice < ActiveRecord::Base
>   def self.practice_members
Is it ok to provide a class method practice_members when there is
already an instance method practice_members?

Colin
>     # global roster, no Demo Practice members included
>     if PracticeMember.all.size>0
>      
Practice.includes("practice_members").where("name<>''Demo
> Practice''").all
>     else
>       return []
>     end
>   end
> end
>
>
>   it "can get global practice member roster not including Demo
Practice" do
>     assert_equal Practice.practice_members.size, 0 # this passes fine
>
>     practice_member = Factory.create(:practice_member)
>     practice_member.practice_id = @practice.id
>     practice_member.save
>     practice_member = Factory.create(:practice_member)
>     practice_member.practice_id = @practice.id
>     practice_member.save
>
>     assert_equal Practice.practice_members.size, 2 # this fails ... and
note
> that Practice.all returns one record with id of "6" and
PracticeMember.all
> returns two records with practice_id of "6"
>   end
>
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David Kahn

2010-Dec-09 17:30 UTC

head link

Re: Re: Rails 3 Active Record query returns "undefined method `loaded?'' for #<Array:0x126a4c>"

On Thu, Dec 9, 2010 at 11:20 AM, Colin Law
<clanlaw-gM/Ye1E23mwN+BqQ9rBEUg@public.gmane.org> wrote:
> On 9 December 2010 17:07, David Kahn
<dk-rfEMNHKVqOwNic7Bib+Ti1W1rNmOCjRP@public.gmane.org> wrote:
> >
> >
> > On Thu, Dec 9, 2010 at 10:16 AM, Ar Chron
<lists-fsXkhYbjdPsEEoCn2XhGlw@public.gmane.org> wrote:
> >>
> >> David Kahn wrote in post #967449:
> >> > I am getting this error on an rspec test:
> >> > undefined method `loaded?'' for
#<Array:0x126a4c>
> >> >
> >> > When I call:
> >> > Practice.includes("practice_members").all
> >> >
> >>
> >> You aren''t testing what you think you are...
> >>
> >> .all returns an array even if it only finds a single instance, and
at
> >> last check, the Array class does not have a loaded? method.
> >>
> >> Should your test be using some other method, perhaps empty?
> >
> > I think I see what you are saying, but I am expecting an array --- I
am
> just
> > asking for array#size. Method and test are copied below.  The failing
> line
> > is at the end of the test. The first line of the test calls the same
> method
> > but it passes. I am not calling array#loaded, something in Rails must
be
> > doing so, which is where I am stuck:
> >
> > class Practice < ActiveRecord::Base
> >   def self.practice_members
>
> Is it ok to provide a class method practice_members when there is
> already an instance method practice_members?
>
From my understanding they are apples and oranges. But anyway I tried out
changing PracticeMember.practice_members to
PracticeMember.global_practice_members but still get the same error.

By the way as far as documentation and explaining myself, I am a bit
confused about the conventions for explaining class methods:

I know that I can explain instance methods like:
PracticeMember#practice_members --- is this correct, that this would refer
to the instance and not the class method?

But how do I explain the self.practice_members method? Would it be
PracticeMember::practice_members (this looks wrong)

>
> Colin
>
> >     # global roster, no Demo Practice members included
> >     if PracticeMember.all.size>0
> >      
Practice.includes("practice_members").where("name<>''Demo
> > Practice''").all
> >     else
> >       return []
> >     end
> >   end
> > end
> >
> >
> >   it "can get global practice member roster not including Demo
Practice"
> do
> >     assert_equal Practice.practice_members.size, 0 # this passes fine
> >
> >     practice_member = Factory.create(:practice_member)
> >     practice_member.practice_id = @practice.id
> >     practice_member.save
> >     practice_member = Factory.create(:practice_member)
> >     practice_member.practice_id = @practice.id
> >     practice_member.save
> >
> >     assert_equal Practice.practice_members.size, 2 # this fails ...
and
> note
> > that Practice.all returns one record with id of "6" and
> PracticeMember.all
> > returns two records with practice_id of "6"
> >   end
> >
>
> --
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Colin Law

2010-Dec-09 17:36 UTC

head link

Re: Re: Rails 3 Active Record query returns "undefined method `loaded?'' for #<Array:0x126a4c>"

On 9 December 2010 17:30, David Kahn
<dk-rfEMNHKVqOwNic7Bib+Ti1W1rNmOCjRP@public.gmane.org>
wrote:>
>
> On Thu, Dec 9, 2010 at 11:20 AM, Colin Law
<clanlaw-gM/Ye1E23mwN+BqQ9rBEUg@public.gmane.org> wrote:
>>
>> On 9 December 2010 17:07, David Kahn
<dk-rfEMNHKVqOwNic7Bib+Ti1W1rNmOCjRP@public.gmane.org> wrote:
>> >
>> >
>> > On Thu, Dec 9, 2010 at 10:16 AM, Ar Chron
<lists-fsXkhYbjdPsEEoCn2XhGlw@public.gmane.org> wrote:
>> >>
>> >> David Kahn wrote in post #967449:
>> >> > I am getting this error on an rspec test:
>> >> > undefined method `loaded?'' for
#<Array:0x126a4c>
>> >> >
>> >> > When I call:
>> >> > Practice.includes("practice_members").all
>> >> >
>> >>
>> >> You aren''t testing what you think you are...
>> >>
>> >> .all returns an array even if it only finds a single instance,
and at
>> >> last check, the Array class does not have a loaded? method.
>> >>
>> >> Should your test be using some other method, perhaps empty?
>> >
>> > I think I see what you are saying, but I am expecting an array ---
I am
>> > just
>> > asking for array#size. Method and test are copied below.  The
failing
>> > line
>> > is at the end of the test. The first line of the test calls the
same
>> > method
>> > but it passes. I am not calling array#loaded, something in Rails
must be
>> > doing so, which is where I am stuck:
>> >
>> > class Practice < ActiveRecord::Base
>> >   def self.practice_members
>>
>> Is it ok to provide a class method practice_members when there is
>> already an instance method practice_members?
>
> From my understanding they are apples and oranges. But anyway I tried out
> changing PracticeMember.practice_members to
> PracticeMember.global_practice_members but still get the same error.
I thought it might be worth trying.  I wonder whether the stack trace
might give someone a clue.
>
> By the way as far as documentation and explaining myself, I am a bit
> confused about the conventions for explaining class methods:
>
> I know that I can explain instance methods like:
> PracticeMember#practice_members --- is this correct, that this would refer
> to the instance and not the class method?
>
> But how do I explain the self.practice_members method? Would it be
> PracticeMember::practice_members (this looks wrong)
Good questions.

Colin

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David Kahn

2010-Dec-09 22:15 UTC

head link

Re: Re: Rails 3 Active Record query returns "undefined method `loaded?'' for #<Array:0x126a4c>"

On Thu, Dec 9, 2010 at 11:36 AM, Colin Law
<clanlaw-gM/Ye1E23mwN+BqQ9rBEUg@public.gmane.org> wrote:
> On 9 December 2010 17:30, David Kahn
<dk-rfEMNHKVqOwNic7Bib+Ti1W1rNmOCjRP@public.gmane.org> wrote:
> >
> >
> > On Thu, Dec 9, 2010 at 11:20 AM, Colin Law
<clanlaw-gM/Ye1E23mwN+BqQ9rBEUg@public.gmane.org>
> wrote:
> >>
> >> On 9 December 2010 17:07, David Kahn
<dk-rfEMNHKVqOwNic7Bib+Ti1W1rNmOCjRP@public.gmane.org> wrote:
> >> >
> >> >
> >> > On Thu, Dec 9, 2010 at 10:16 AM, Ar Chron
<lists-fsXkhYbjdPsEEoCn2XhGlw@public.gmane.org>
> wrote:
> >> >>
> >> >> David Kahn wrote in post #967449:
> >> >> > I am getting this error on an rspec test:
> >> >> > undefined method `loaded?'' for
#<Array:0x126a4c>
> >> >> >
> >> >> > When I call:
> >> >> > Practice.includes("practice_members").all
> >> >> >
> >> >>
> >> >> You aren''t testing what you think you are...
> >> >>
> >> >> .all returns an array even if it only finds a single
instance, and at
> >> >> last check, the Array class does not have a loaded?
method.
> >> >>
> >> >> Should your test be using some other method, perhaps
empty?
> >> >
> >> > I think I see what you are saying, but I am expecting an
array --- I
> am
> >> > just
> >> > asking for array#size. Method and test are copied below.  The
failing
> >> > line
> >> > is at the end of the test. The first line of the test calls
the same
> >> > method
> >> > but it passes. I am not calling array#loaded, something in
Rails must
> be
> >> > doing so, which is where I am stuck:
> >> >
> >> > class Practice < ActiveRecord::Base
> >> >   def self.practice_members
> >>
> >> Is it ok to provide a class method practice_members when there is
> >> already an instance method practice_members?
> >
> > From my understanding they are apples and oranges. But anyway I tried
out
> > changing PracticeMember.practice_members to
> > PracticeMember.global_practice_members but still get the same error.
>
> I thought it might be worth trying.  I wonder whether the stack trace
> might give someone a clue.
>
Yeah... well this is a$$ kicking... now the weirdest part is I have an
almost identical relation between Practice and User as I do between Practice
and PracticeMember models, and

Practice.includes("users").all

.... give me love

but

Practice.includes("practice_members").all

Tells me what I can do with my practice members... (does the backtrace below
give anyone some idea).. so I know the issues is I am blind to something and
not a problem with AR or Rails (is it ever?):

ruby-1.9.2-p0 > Practice.includes("practice_members").all
NoMethodError: undefined method `loaded?'' for #<Array:0x272aef0>
    from
/Users/DK/.rvm/gems/ruby-1.9.2-p0@wavelineup3/gems/activerecord-3.0.3/lib/active_record/association_preload.rb:237:in
`preload_has_many_association''
    from
/Users/DK/.rvm/gems/ruby-1.9.2-p0@wavelineup3/gems/activerecord-3.0.3/lib/active_record/association_preload.rb:121:in
`block in preload_one_association''
    from
/Users/DK/.rvm/gems/ruby-1.9.2-p0@wavelineup3/gems/activerecord-3.0.3/lib/active_record/association_preload.rb:115:in
`each''
    from
/Users/DK/.rvm/gems/ruby-1.9.2-p0@wavelineup3/gems/activerecord-3.0.3/lib/active_record/association_preload.rb:115:in
`preload_one_association''
    from
/Users/DK/.rvm/gems/ruby-1.9.2-p0@wavelineup3/gems/activerecord-3.0.3/lib/active_record/association_preload.rb:92:in
`preload_associations''
    from
/Users/DK/.rvm/gems/ruby-1.9.2-p0@wavelineup3/gems/activerecord-3.0.3/lib/active_record/relation.rb:68:in
`block in to_a''
    from
/Users/DK/.rvm/gems/ruby-1.9.2-p0@wavelineup3/gems/activerecord-3.0.3/lib/active_record/relation.rb:68:in
`each''
    from
/Users/DK/.rvm/gems/ruby-1.9.2-p0@wavelineup3/gems/activerecord-3.0.3/lib/active_record/relation.rb:68:in
`to_a''
    from
/Users/DK/.rvm/gems/ruby-1.9.2-p0@wavelineup3/gems/activerecord-3.0.3/lib/active_record/relation/finder_methods.rb:143:in
`all''
    from (irb):65
    from
/Users/DK/.rvm/gems/ruby-1.9.2-p0@wavelineup3/gems/railties-3.0.3/lib/rails/commands/console.rb:44:in
`start''
    from
/Users/DK/.rvm/gems/ruby-1.9.2-p0@wavelineup3/gems/railties-3.0.3/lib/rails/commands/console.rb:8:in
`start''
    from
/Users/DK/.rvm/gems/ruby-1.9.2-p0@wavelineup3/gems/railties-3.0.3/lib/rails/commands.rb:23:in
`<top (required)>''
    from script/rails:6:in `require''
    from script/rails:6:in `<main>''


Meanwhile I will continue to stare at the obvious :)

David

>
> >
> > By the way as far as documentation and explaining myself, I am a bit
> > confused about the conventions for explaining class methods:
> >
> > I know that I can explain instance methods like:
> > PracticeMember#practice_members --- is this correct, that this would
> refer
> > to the instance and not the class method?
> >
> > But how do I explain the self.practice_members method? Would it be
> > PracticeMember::practice_members (this looks wrong)
>
> Good questions.
>
> Colin
>
> --
> You received this message because you are subscribed to the Google Groups
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> .
> For more options, visit this group at
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>
>
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David Kahn

2010-Dec-09 22:26 UTC

head link

[SOLVED] Re: Re: Rails 3 Active Record query returns "undefined method `loaded?'' for #<Array:0x126a4c>"

On Thu, Dec 9, 2010 at 4:15 PM, David Kahn
<dk-rfEMNHKVqOwNic7Bib+Ti1W1rNmOCjRP@public.gmane.org>wrote:
>
>
> On Thu, Dec 9, 2010 at 11:36 AM, Colin Law
<clanlaw-gM/Ye1E23mwN+BqQ9rBEUg@public.gmane.org> wrote:
>
>> On 9 December 2010 17:30, David Kahn
<dk-rfEMNHKVqOwNic7Bib+Ti1W1rNmOCjRP@public.gmane.org> wrote:
>> >
>> >
>> > On Thu, Dec 9, 2010 at 11:20 AM, Colin Law
<clanlaw-gM/Ye1E23mwN+BqQ9rBEUg@public.gmane.org>
>> wrote:
>> >>
>> >> On 9 December 2010 17:07, David Kahn
<dk-rfEMNHKVqOwNic7Bib+Ti1W1rNmOCjRP@public.gmane.org>
>> wrote:
>> >> >
>> >> >
>> >> > On Thu, Dec 9, 2010 at 10:16 AM, Ar Chron
<lists-fsXkhYbjdPsEEoCn2XhGlw@public.gmane.org>
>> wrote:
>> >> >>
>> >> >> David Kahn wrote in post #967449:
>> >> >> > I am getting this error on an rspec test:
>> >> >> > undefined method `loaded?'' for
#<Array:0x126a4c>
>> >> >> >
>> >> >> > When I call:
>> >> >> >
Practice.includes("practice_members").all
>> >> >> >
>> >> >>
>> >> >> You aren''t testing what you think you are...
>> >> >>
>> >> >> .all returns an array even if it only finds a single
instance, and
>> at
>> >> >> last check, the Array class does not have a loaded?
method.
>> >> >>
>> >> >> Should your test be using some other method, perhaps
empty?
>> >> >
>> >> > I think I see what you are saying, but I am expecting an
array --- I
>> am
>> >> > just
>> >> > asking for array#size. Method and test are copied below. 
The failing
>> >> > line
>> >> > is at the end of the test. The first line of the test
calls the same
>> >> > method
>> >> > but it passes. I am not calling array#loaded, something
in Rails must
>> be
>> >> > doing so, which is where I am stuck:
>> >> >
>> >> > class Practice < ActiveRecord::Base
>> >> >   def self.practice_members
>> >>
>> >> Is it ok to provide a class method practice_members when there
is
>> >> already an instance method practice_members?
>> >
>> > From my understanding they are apples and oranges. But anyway I
tried
>> out
>> > changing PracticeMember.practice_members to
>> > PracticeMember.global_practice_members but still get the same
error.
>>
>> I thought it might be worth trying.  I wonder whether the stack trace
>> might give someone a clue.
>>
>
> Yeah... well this is a$$ kicking... now the weirdest part is I have an
> almost identical relation between Practice and User as I do between
Practice
> and PracticeMember models, and
>
> Practice.includes("users").all
>
> .... give me love
>
> but
>
>
> Practice.includes("practice_members").all
>
> Tells me what I can do with my practice members... (does the backtrace
> below give anyone some idea).. so I know the issues is I am blind to
> something and not a problem with AR or Rails (is it ever?):
>
> ruby-1.9.2-p0 > Practice.includes("practice_members").all
> NoMethodError: undefined method `loaded?'' for
#<Array:0x272aef0>
>     from
/Users/DK/.rvm/gems/ruby-1.9.2-p0@wavelineup3/gems/activerecord-3.0.3/lib/active_record/association_preload.rb:237:in
> `preload_has_many_association''
>     from
/Users/DK/.rvm/gems/ruby-1.9.2-p0@wavelineup3/gems/activerecord-3.0.3/lib/active_record/association_preload.rb:121:in
> `block in preload_one_association''
>     from
/Users/DK/.rvm/gems/ruby-1.9.2-p0@wavelineup3/gems/activerecord-3.0.3/lib/active_record/association_preload.rb:115:in
> `each''
>     from
/Users/DK/.rvm/gems/ruby-1.9.2-p0@wavelineup3/gems/activerecord-3.0.3/lib/active_record/association_preload.rb:115:in
> `preload_one_association''
>     from
/Users/DK/.rvm/gems/ruby-1.9.2-p0@wavelineup3/gems/activerecord-3.0.3/lib/active_record/association_preload.rb:92:in
> `preload_associations''
>     from
/Users/DK/.rvm/gems/ruby-1.9.2-p0@wavelineup3/gems/activerecord-3.0.3/lib/active_record/relation.rb:68:in
> `block in to_a''
>     from
/Users/DK/.rvm/gems/ruby-1.9.2-p0@wavelineup3/gems/activerecord-3.0.3/lib/active_record/relation.rb:68:in
> `each''
>     from
/Users/DK/.rvm/gems/ruby-1.9.2-p0@wavelineup3/gems/activerecord-3.0.3/lib/active_record/relation.rb:68:in
> `to_a''
>     from
/Users/DK/.rvm/gems/ruby-1.9.2-p0@wavelineup3/gems/activerecord-3.0.3/lib/active_record/relation/finder_methods.rb:143:in
> `all''
>     from (irb):65
>     from
/Users/DK/.rvm/gems/ruby-1.9.2-p0@wavelineup3/gems/railties-3.0.3/lib/rails/commands/console.rb:44:in
> `start''
>     from
/Users/DK/.rvm/gems/ruby-1.9.2-p0@wavelineup3/gems/railties-3.0.3/lib/rails/commands/console.rb:8:in
> `start''
>     from
/Users/DK/.rvm/gems/ruby-1.9.2-p0@wavelineup3/gems/railties-3.0.3/lib/rails/commands.rb:23:in
> `<top (required)>''
>     from script/rails:6:in `require''
>     from script/rails:6:in `<main>''
>
>
> Meanwhile I will continue to stare at the obvious :)
>
Well doing this seemed to work.

I am finding the hard way that I should ***always*** use the model name and
not plural on the has_many.

I had "has_many :practice_members" .... which seems like something
that
Rails at least tolerated in 2x and seems to accept in 3x *but* is just a
false sense of security. Was it always that the has_many should be singular
and I just created my own superstition?

Anyhow, when I change it to "has_many :practice_member"

Then I get my love:

Practice.includes("practice_member").where("name<>''Demo
Practice''").all
 => [#<Practice id: 2, name: "Davids Practice", created_at:
"2010-12-09
21:44:32", updated_at: "2010-12-09 21:44:32">, #<Practice
id: 3, name:
"Donny''s Practice", created_at: "2010-12-09
21:52:37", updated_at:
"2010-12-09 21:52:37">]

So there.


David


>
> David
>
>
>>
>> >
>> > By the way as far as documentation and explaining myself, I am a
bit
>> > confused about the conventions for explaining class methods:
>> >
>> > I know that I can explain instance methods like:
>> > PracticeMember#practice_members --- is this correct, that this
would
>> refer
>> > to the instance and not the class method?
>> >
>> > But how do I explain the self.practice_members method? Would it be
>> > PracticeMember::practice_members (this looks wrong)
>>
>> Good questions.
>>
>> Colin
>>
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>>
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Marnen Laibow-Koser

2010-Dec-09 22:41 UTC

head link

Re: Re: Rails 3 Active Record query returns "undefined method `loaded?'' for #<Array:0x126a4c

David Kahn wrote in post #967538:
[...]> I am finding the hard way that I should ***always*** use the model name
> and
> not plural on the has_many.
>
> I had "has_many :practice_members" .... which seems like
something that
> Rails at least tolerated in 2x and seems to accept in 3x *but* is just a
> false sense of security. Was it always that the has_many should be
> singular
> and I just created my own superstition?
No.  has_many should always be plural.  According to the docs, this has 
not changed in Rails 3.

Have you been playing around with your inflector methods?
>
> Anyhow, when I change it to "has_many :practice_member"
>
> Then I get my love:
>
>
Practice.includes("practice_member").where("name<>''Demo
Practice''").all
>  => [#<Practice id: 2, name: "Davids Practice", created_at:
"2010-12-09
> 21:44:32", updated_at: "2010-12-09 21:44:32">,
#<Practice id: 3, name:
> "Donny''s Practice", created_at: "2010-12-09
21:52:37", updated_at:
> "2010-12-09 21:52:37">]
>
> So there.
That makes no sense.  has_many :singular shouldn''t even work.
>
>
> David
Best,
--
Marnen Laibow-Koser
http://www.marnen.org
marnen-sbuyVjPbboAdnm+yROfE0A@public.gmane.org

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David Kahn

2010-Dec-09 22:47 UTC

head link

Re: Re: Rails 3 Active Record query returns "undefined method `loaded?'' for #<Array:0x126a4c

On Thu, Dec 9, 2010 at 4:41 PM, Marnen Laibow-Koser
<lists-fsXkhYbjdPsEEoCn2XhGlw@public.gmane.org>wrote:
> David Kahn wrote in post #967538:
> [...]
> > I am finding the hard way that I should ***always*** use the model
name
> > and
> > not plural on the has_many.
> >
> > I had "has_many :practice_members" .... which seems like
something that
> > Rails at least tolerated in 2x and seems to accept in 3x *but* is just
a
> > false sense of security. Was it always that the has_many should be
> > singular
> > and I just created my own superstition?
>
> No.  has_many should always be plural.  According to the docs, this has
> not changed in Rails 3.
>
> Have you been playing around with your inflector methods?
>
nope... generally never touch these

>
> >
> > Anyhow, when I change it to "has_many :practice_member"
> >
> > Then I get my love:
> >
> >
Practice.includes("practice_member").where("name<>''Demo
Practice''").all
> >  => [#<Practice id: 2, name: "Davids Practice",
created_at: "2010-12-09
> > 21:44:32", updated_at: "2010-12-09 21:44:32">,
#<Practice id: 3, name:
> > "Donny''s Practice", created_at: "2010-12-09
21:52:37", updated_at:
> > "2010-12-09 21:52:37">]
> >
> > So there.
>
> That makes no sense.  has_many :singular shouldn''t even work.
>
I know! Well, in Larry David''s words, at this point "Whatever
works". I know
that''s not a good answer, and now I have a new supersition: has_many
>> NO
plurals.

>
> >
> >
> > David
>
> 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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Marnen Laibow-Koser

2010-Dec-09 22:54 UTC

head link

Re: Re: Rails 3 Active Record query returns "undefined method `loaded?'' for #<Array:0x126a4c

David Kahn wrote in post #967544:> On Thu, Dec 9, 2010 at 4:41 PM, Marnen Laibow-Koser
> <lists-fsXkhYbjdPsEEoCn2XhGlw@public.gmane.org>wrote:
>
>> > and I just created my own superstition?
>>
>> No.  has_many should always be plural.  According to the docs, this has
>> not changed in Rails 3.
>>
>> Have you been playing around with your inflector methods?
>>
>
> nope... generally never touch these
>
>
>> > "2010-12-09 21:52:37">]
>> >
>> > So there.
>>
>> That makes no sense.  has_many :singular shouldn''t even work.
>>
>
> I know! Well, in Larry David''s words, at this point "Whatever
works". I
> know
> that''s not a good answer, and now I have a new supersition:
has_many >>
> NO
> plurals.
Superstitions have no place in software development.  You know as well 
as I do that you need to find out what''s really going wrong...

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

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David Kahn

2010-Dec-09 23:12 UTC

head link

Re: Re: Re: Rails 3 Active Record query returns "undefined method `loaded?'' for #<Array:0x126a4c

On Thu, Dec 9, 2010 at 4:54 PM, Marnen Laibow-Koser
<lists-fsXkhYbjdPsEEoCn2XhGlw@public.gmane.org>wrote:
> David Kahn wrote in post #967544:
> > On Thu, Dec 9, 2010 at 4:41 PM, Marnen Laibow-Koser
> > <lists-fsXkhYbjdPsEEoCn2XhGlw@public.gmane.org>wrote:
> >
> >> > and I just created my own superstition?
> >>
> >> No.  has_many should always be plural.  According to the docs,
this has
> >> not changed in Rails 3.
> >>
> >> Have you been playing around with your inflector methods?
> >>
> >
> > nope... generally never touch these
> >
> >
> >> > "2010-12-09 21:52:37">]
> >> >
> >> > So there.
> >>
> >> That makes no sense.  has_many :singular shouldn''t even
work.
> >>
> >
> > I know! Well, in Larry David''s words, at this point
"Whatever works". I
> > know
> > that''s not a good answer, and now I have a new supersition:
has_many >>
> > NO
> > plurals.
>
> Superstitions have no place in software development.  You know as well
> as I do that you need to find out what''s really going wrong...
>
Um... Im just in a gigantic skinner box most of the time
>
> 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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Colin Law

2010-Dec-10 09:56 UTC

head link

Re: [SOLVED] Re: Re: Rails 3 Active Record query returns "undefined method `loaded?'' for #<Array:0x126a4c>"

On 9 December 2010 22:26, David Kahn
<dk-rfEMNHKVqOwNic7Bib+Ti1W1rNmOCjRP@public.gmane.org>
wrote:> [...]
> Well doing this seemed to work.
>
> I am finding the hard way that I should ***always*** use the model name and
> not plural on the has_many.
>
> I had "has_many :practice_members" .... which seems like
something that
> Rails at least tolerated in 2x and seems to accept in 3x *but* is just a
> false sense of security. Was it always that the has_many should be singular
> and I just created my own superstition?
No, it should definitely be plural.
>
> Anyhow, when I change it to "has_many :practice_member"
>
> Then I get my love:
>
>
Practice.includes("practice_member").where("name<>''Demo
Practice''").all
>  => [#<Practice id: 2, name: "Davids Practice", created_at:
"2010-12-09
> 21:44:32", updated_at: "2010-12-09 21:44:32">,
#<Practice id: 3, name:
> "Donny''s Practice", created_at: "2010-12-09
21:52:37", updated_at:
> "2010-12-09 21:52:37">]
Well I believe that it should not work like that.  Perhaps you have found a bug.

I haven''t used includes on Rails 3 yet, but I notice that the examples
I can find use the symbol in the includes call, so
Practice.includes(:practice_members)
It might be worth trying that.

Colin

Colin

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David Kahn

2010-Dec-10 14:12 UTC

head link

Re: [SOLVED] Re: Re: Rails 3 Active Record query returns "undefined method `loaded?'' for #<Array:0x126a4c>"

On Fri, Dec 10, 2010 at 3:56 AM, Colin Law
<clanlaw-gM/Ye1E23mwN+BqQ9rBEUg@public.gmane.org> wrote:
> On 9 December 2010 22:26, David Kahn
<dk-rfEMNHKVqOwNic7Bib+Ti1W1rNmOCjRP@public.gmane.org> wrote:
> > [...]
> > Well doing this seemed to work.
> >
> > I am finding the hard way that I should ***always*** use the model
name
> and
> > not plural on the has_many.
> >
> > I had "has_many :practice_members" .... which seems like
something that
> > Rails at least tolerated in 2x and seems to accept in 3x *but* is just
a
> > false sense of security. Was it always that the has_many should be
> singular
> > and I just created my own superstition?
>
> No, it should definitely be plural.
>
Ok, it is weird enough for me to spend some more time... possibly I am doing
something wrong in two places and what I have is like a double negative or
"two wrongs making a right".... I''ll report back.

>
> >
> > Anyhow, when I change it to "has_many :practice_member"
> >
> > Then I get my love:
> >
> >
Practice.includes("practice_member").where("name<>''Demo
Practice''").all
> >  => [#<Practice id: 2, name: "Davids Practice",
created_at: "2010-12-09
> > 21:44:32", updated_at: "2010-12-09 21:44:32">,
#<Practice id: 3, name:
> > "Donny''s Practice", created_at: "2010-12-09
21:52:37", updated_at:
> > "2010-12-09 21:52:37">]
>
> Well I believe that it should not work like that.  Perhaps you have found a
> bug.
>
> I haven''t used includes on Rails 3 yet, but I notice that the
examples
> I can find use the symbol in the includes call, so
> Practice.includes(:practice_members)
> It might be worth trying that.
>
> Colin
>
> Colin
>
> --
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Frederick Cheung

2010-Dec-10 15:49 UTC

head link

Re: Re: Rails 3 Active Record query returns "undefined method `loaded?'' for #<Array:0x126a4c>"

On Dec 10, 2:12 pm, David Kahn
<d...-rfEMNHKVqOwNic7Bib+Ti1W1rNmOCjRP@public.gmane.org>
wrote:>
> Ok, it is weird enough for me to spend some more time... possibly I am
doing
> something wrong in two places and what I have is like a double negative or
> "two wrongs making a right".... I''ll report back.
Something is resulting in you having an array where you should have an
association proxy. This would happen if you had an instance method you
wrote with the same name as one of your associations (so changing the
name of the association would change what''s happening because it would
eliminate that collision)

Fred

>
>
>
>
>
> > > Anyhow, when I change it to "has_many :practice_member"
>
> > > Then I get my love:
>
> > >
Practice.includes("practice_member").where("name<>''Demo
Practice''").all
> > >  => [#<Practice id: 2, name: "Davids Practice",
created_at: "2010-12-09
> > > 21:44:32", updated_at: "2010-12-09 21:44:32">,
#<Practice id: 3, name:
> > > "Donny''s Practice", created_at:
"2010-12-09 21:52:37", updated_at:
> > > "2010-12-09 21:52:37">]
>
> > Well I believe that it should not work like that.  Perhaps you have
found a
> > bug.
>
> > I haven''t used includes on Rails 3 yet, but I notice that the
examples
> > I can find use the symbol in the includes call, so
> > Practice.includes(:practice_members)
> > It might be worth trying that.
>
> > Colin
>
> > Colin
>
> > --
> > You received this message because you are subscribed to the Google
Groups
> > "Ruby on Rails: Talk" group.
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David Kahn

2010-Dec-10 22:21 UTC

head link

Re: Re: Rails 3 Active Record query returns "undefined method `loaded?'' for #<Array:0x126a4c>"

On Fri, Dec 10, 2010 at 9:49 AM, Frederick Cheung <
frederick.cheung-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org> wrote:
>
>
> On Dec 10, 2:12 pm, David Kahn
<d...-rfEMNHKVqOwNic7Bib+Ti1W1rNmOCjRP@public.gmane.org> wrote:
> >
> > Ok, it is weird enough for me to spend some more time... possibly I am
> doing
> > something wrong in two places and what I have is like a double
negative
> or
> > "two wrongs making a right".... I''ll report back.
>
> Something is resulting in you having an array where you should have an
> association proxy. This would happen if you had an instance method you
> wrote with the same name as one of your associations (so changing the
> name of the association would change what''s happening because it
would
> eliminate that collision)
>
>Thanks, I think you are right. What I did was move the method to a more
appropriate model in addition to renaming. I had tried renaming yesterday
but maybe I missed something.

> Fred
>
>
> >
> >
> >
> >
> >
> > > > Anyhow, when I change it to "has_many
:practice_member"
> >
> > > > Then I get my love:
> >
> > > >
Practice.includes("practice_member").where("name<>''Demo
> Practice''").all
> > > >  => [#<Practice id: 2, name: "Davids
Practice", created_at:
> "2010-12-09
> > > > 21:44:32", updated_at: "2010-12-09
21:44:32">, #<Practice id: 3,
> name:
> > > > "Donny''s Practice", created_at:
"2010-12-09 21:52:37", updated_at:
> > > > "2010-12-09 21:52:37">]
> >
> > > Well I believe that it should not work like that.  Perhaps you
have
> found a
> > > bug.
> >
> > > I haven''t used includes on Rails 3 yet, but I notice
that the examples
> > > I can find use the symbol in the includes call, so
> > > Practice.includes(:practice_members)
> > > It might be worth trying that.
> >
> > > Colin
> >
> > > Colin
> >
> > > --
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> e@googlegroups.com>
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Rails - Dec 2010 - Rails 3 Active Record query returns "undefined method `loaded?' for #<Array:0x126a4c>"

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Re: Re: Rails 3 Active Record query returns "undefined method `loaded?'' for #<Array:0x126a4c>"

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Re: Re: Rails 3 Active Record query returns "undefined method `loaded?'' for #<Array:0x126a4c>"

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[SOLVED] Re: Re: Rails 3 Active Record query returns "undefined method `loaded?'' for #<Array:0x126a4c>"

Re: Re: Rails 3 Active Record query returns "undefined method `loaded?'' for #<Array:0x126a4c

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Re: Re: Rails 3 Active Record query returns "undefined method `loaded?'' for #<Array:0x126a4c

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Re: Re: Rails 3 Active Record query returns "undefined method `loaded?'' for #<Array:0x126a4c>"

Re: Re: Rails 3 Active Record query returns "undefined method `loaded?'' for #<Array:0x126a4c>"

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