thr3ads.net - Rails - HABTM issue [Jun 2011]

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rajeevkannav

2011-Jun-16 05:22 UTC

HABTM issue

class User < ActiveRecord::Base
    has_many :correlations
  has_many :roles, :through => :correlations
  has_many :skills, :through => :correlations
  attr_accessible :email, :password, :password_confirmation, :remember_me, 
:role_ids, :skill_ids, :username, :first_name, :last_name, :address, :city, 
:state , :country, :phone_number, :photo,:fullname, :shortbio, :weburl

    def role?(role)
    return !!self.roles.find_by_name(role.to_s.camelize)
  end
    def skill?(skill)
    return !!self.skills.find_by_name(skill.to_s.camelize)
  end

end


class Correlation < ActiveRecord::Base
  belongs_to :role
  belongs_to :skill
  belongs_to :user
end


class Skill < ActiveRecord::Base
  has_many :correlations
  has_many :roles, :through => :correlations
  has_many :users, :through => :correlations
end

class Role < ActiveRecord::Base
  has_many :correlations
  has_many :skills, :through => :correlations
  has_many :users, :through => :correlations

end


module ArticlesHelper

    def skill_list
        skills_ids = current_user.skill_ids
        skills_ids.delete_if {|x| x == nil}
        skills = Skill.find(skills_ids)
        return skills
    end

end

if working fine but on heroku console

@user.skill_ids
NoMethodError: undefined method `skill_ids'' for 
#<ActiveRecord::Relation:0x00000005515b58>
@user.role_ids
NoMethodError: undefined method `skill_ids'' for 
#<ActiveRecord::Relation:0x00000005515b58>


Any idea?

Pleaase help 

ccdd

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askegg

2011-Jun-16 07:50 UTC

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Re: HABTM issue

Your problem is here:
> @user.skill_ids
> NoMethodError: undefined method `skill_ids'' for
> #<ActiveRecord::Relation:0x00000005515b58>
> @user.role_ids
> NoMethodError: undefined method `skill_ids'' for
> #<ActiveRecord::Relation:0x00000005515b58>
Try @user.skills.all and @user.roles.all.

Of you really DO want just the ids (seriously ask yourself why), then
@user.skills.all.collect(&:id) and @user.roles.all.collect(&:id)

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rajeevsharma86

2011-Jun-16 09:58 UTC

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Re: Re: HABTM issue

not working

On Thu, Jun 16, 2011 at 1:20 PM, askegg
<andrew.skegg-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org> wrote:
> Your problem is here:
>
> > @user.skill_ids
> > NoMethodError: undefined method `skill_ids'' for
> > #<ActiveRecord::Relation:0x00000005515b58>
> > @user.role_ids
> > NoMethodError: undefined method `skill_ids'' for
> > #<ActiveRecord::Relation:0x00000005515b58>
>
> Try @user.skills.all and @user.roles.all.
>
> Of you really DO want just the ids (seriously ask yourself why), then
> @user.skills.all.collect(&:id) and @user.roles.all.collect(&:id)
>
> --
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>
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Colin Law

2011-Jun-16 11:03 UTC

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Re: Re: HABTM issue

On 16 June 2011 10:58, rajeevsharma86
<rajeevsharma86-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
wrote:> not working
It is no good just saying ''not working''.  Post exactly what
you have
tried and exactly what the result is.

By the way please don''t top post, it makes it difficult to follow the
thread.  Insert your replies inline at appropriate points in the
previous message.  Thanks.

Colin
>
> On Thu, Jun 16, 2011 at 1:20 PM, askegg
<andrew.skegg-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org> wrote:
>>
>> Your problem is here:
>>
>> > @user.skill_ids
>> > NoMethodError: undefined method `skill_ids'' for
>> > #<ActiveRecord::Relation:0x00000005515b58>
>> > @user.role_ids
>> > NoMethodError: undefined method `skill_ids'' for
>> > #<ActiveRecord::Relation:0x00000005515b58>
>>
>> Try @user.skills.all and @user.roles.all.
>>
>> Of you really DO want just the ids (seriously ask yourself why), then
>> @user.skills.all.collect(&:id) and
@user.roles.all.collect(&:id)
>>
>> --
>> 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
>> To unsubscribe from this group, send email to
>>
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>> For more options, visit this group at
>> http://groups.google.com/group/rubyonrails-talk?hl=en.
>>
>
> --
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>
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Rob Biedenharn

2011-Jun-16 12:29 UTC

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Re: HABTM issue

On Jun 16, 2011, at 1:22 AM, rajeevkannav wrote:
> class User < ActiveRecord::Base
>     has_many :correlations
>   has_many :roles, :through => :correlations
>   has_many :skills, :through => :correlations
>    
> attr_accessible 
>  :email 
> , :password 
> , :password_confirmation 
> , :remember_me 
> , :role_ids 
> , :skill_ids 
> , :username 
> , :first_name 
> , :last_name 
> , :address 
> , :city 
> , :state 
>  , :country, :phone_number, :photo,:fullname, :shortbio, :weburl
Why do you have these att_accessible things? If these are the columns  
from the database table users, then ActiveRecord will already take  
care of those. I think you should take out the entire attr_accessible  
line and try again.  (Well, depending on how they are used, you might  
need to retain a `attr_accessor ... Ah, you have attr_accessible (an  
ActiveRecord thing) not attr_accessor (a Ruby thing).) OK, so I still  
wonder if having :skill_ids in that list is wrong since it is not a  
column, but a method added by ActiveRecord. (and same for :role_ids)
>
>     def role?(role)
>     return !!self.roles.find_by_name(role.to_s.camelize)
>   end
>     def skill?(skill)
>     return !!self.skills.find_by_name(skill.to_s.camelize)
>   end
Unless you actually depend on true/false rather than just truthiness,  
you don''t need the !! (or the return)

   def role?(a_role)
     self.roles.find_by_name(a_role.to_s.camelize)
   end
>
> end
>
>
> class Correlation < ActiveRecord::Base
>   belongs_to :role
>   belongs_to :skill
>   belongs_to :user
> end
>
>
> class Skill < ActiveRecord::Base
>   has_many :correlations
>   has_many :roles, :through => :correlations
>   has_many :users, :through => :correlations
> end
>
> class Role < ActiveRecord::Base
>   has_many :correlations
>   has_many :skills, :through => :correlations
>   has_many :users, :through => :correlations
>
> end
>
>
> module ArticlesHelper
>
>     def skill_list
>         skills_ids = current_user.skill_ids
>         skills_ids.delete_if {|x| x == nil}
>         skills = Skill.find(skills_ids)
>         return skills
>     end
>
> end
>
> if working fine but on heroku console
>
> @user.skill_ids
> NoMethodError: undefined method `skill_ids'' for  
> #<ActiveRecord::Relation:0x00000005515b58>
> @user.role_ids
> NoMethodError: undefined method `skill_ids'' for  
> #<ActiveRecord::Relation:0x00000005515b58>
>
>
> Any idea?
>
> Pleaase help
>
> ccdd
-Rob

Rob Biedenharn		
Rob-xa9cJyRlE0mWcWVYNo9pwxS2lgjeYSpx@public.gmane.org
http://AgileConsultingLLC.com/
rab-/VpnD74mH8+00s0LW7PaslaTQe2KTcn/@public.gmane.org	
http://GaslightSoftware.com/

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Annapoorna R

2011-Jun-17 07:11 UTC

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Re: HABTM issue

hi..
please help me out m very much new to rails.. just how to create form using
rails??????????

On Thu, Jun 16, 2011 at 5:59 PM, Rob Biedenharn
<Rob-GBZH0y1GwQfnZcttdmLDtcI/UQi/AW5J@public.gmane.org>wrote:
>
> On Jun 16, 2011, at 1:22 AM, rajeevkannav wrote:
>
> class User < ActiveRecord::Base
>     has_many :correlations
>   has_many :roles, :through => :correlations
>   has_many :skills, :through => :correlations
>   attr_accessible :email, :password, :password_confirmation, :remember_me,
> :role_ids, :skill_ids, :username, :first_name, :last_name, :address, :city,
> :state , :country, :phone_number, :photo,:fullname, :shortbio, :weburl
>
>
> Why do you have these att_accessible things? If these are the columns from
> the database table users, then ActiveRecord will already take care of
those.
> I think you should take out the entire attr_accessible line and try again.
>  (Well, depending on how they are used, you might need to retain a
> `attr_accessor ... Ah, you have attr_accessible (an ActiveRecord thing) not
> attr_accessor (a Ruby thing).) OK, so I still wonder if having :skill_ids
in
> that list is wrong since it is not a column, but a method added by
> ActiveRecord. (and same for :role_ids)
>
>
>     def role?(role)
>     return !!self.roles.find_by_name(role.to_s.camelize)
>   end
>     def skill?(skill)
>     return !!self.skills.find_by_name(skill.to_s.camelize)
>   end
>
>
> Unless you actually depend on true/false rather than just truthiness, you
> don''t need the !! (or the return)
>
>   def role?(a_role)
>     self.roles.find_by_name(a_role.to_s.camelize)
>   end
>
>
> end
>
>
> class Correlation < ActiveRecord::Base
>   belongs_to :role
>   belongs_to :skill
>   belongs_to :user
> end
>
>
> class Skill < ActiveRecord::Base
>   has_many :correlations
>   has_many :roles, :through => :correlations
>   has_many :users, :through => :correlations
> end
>
> class Role < ActiveRecord::Base
>   has_many :correlations
>   has_many :skills, :through => :correlations
>   has_many :users, :through => :correlations
>
> end
>
>
> module ArticlesHelper
>
>     def skill_list
>         skills_ids = current_user.skill_ids
>         skills_ids.delete_if {|x| x == nil}
>         skills = Skill.find(skills_ids)
>         return skills
>     end
>
> end
>
> if working fine but on heroku console
>
> @user.skill_ids
> NoMethodError: undefined method `skill_ids'' for
> #<ActiveRecord::Relation:0x00000005515b58>
> @user.role_ids
> NoMethodError: undefined method `skill_ids'' for
> #<ActiveRecord::Relation:0x00000005515b58>
>
>
> Any idea?
>
> Pleaase help
>
> ccdd
>
>
> -Rob
>
> Rob Biedenharn
> Rob-xa9cJyRlE0mWcWVYNo9pwxS2lgjeYSpx@public.gmane.org
http://AgileConsultingLLC.com/
> rab-/VpnD74mH8+00s0LW7PaslaTQe2KTcn/@public.gmane.org
<Rob-/VpnD74mH8+00s0LW7PaslaTQe2KTcn/@public.gmane.org>
> http://GaslightSoftware.com/
>
>  --
> You received this message because you are subscribed to the Google Groups
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rubyonrails-talk-/JYPxA39Uh5TLH3MbocFF+G/Ez6ZCGd0@public.gmane.org
> To unsubscribe from this group, send email to
>
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>
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Rails - Jun 2011 - HABTM issue

HABTM issue

Re: HABTM issue

Re: Re: HABTM issue

Re: Re: HABTM issue

Re: HABTM issue

Re: HABTM issue