class Shopcategory0 < ActiveRecord::Base
set_table_name "shopcategories_0"
has_many :shopcategory1s, :foreign_key => :parentcategory_id
end
class Shopcategory1 < ActiveRecord::Base
set_table_name "shopcategories_1"
belongs_to :shopcategory0, :foreign_key => :shopcategory_id
end
class Shopcategory0sController < ApplicationController
def show
@shopcategory = Shopcategory0.all (:joins
=> :shopcategory1s)
end
end
---------------------
That''s the SQL result:
---------------------
Shopcategory0 Load (0.1ms) SELECT `shopcategories_0`.* FROM
`shopcategories_0` INNER JOIN `shopcategories_1` ON
shopcategories_1.parentcategory_id = shopcategories_0.id
---------------------
And this is what I search (notice the end):
---------------------
Shopcategory0 Load (0.1ms) SELECT `shopcategories_0`.* FROM
`shopcategories_0` INNER JOIN `shopcategories_1` ON
shopcategories_1.parentcategory_id = shopcategories_0.shopcategory_id
I suppose there is a way to do that...I''ll appreciate your help !!!
On Jul 28, 10:34 am, cocozz <coc...-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org> wrote:> class Shopcategory0 < ActiveRecord::Base > set_table_name "shopcategories_0" > > has_many :shopcategory1s, :foreign_key => :parentcategory_id > end > > class Shopcategory1 < ActiveRecord::Base > set_table_name "shopcategories_1" > > belongs_to :shopcategory0, :foreign_key => :shopcategory_id > end > > class Shopcategory0sController < ApplicationController > def show > @shopcategory = Shopcategory0.all (:joins > => :shopcategory1s) > end > end > > --------------------- > That''s the SQL result: > --------------------- > > Shopcategory0 Load (0.1ms) SELECT `shopcategories_0`.* FROM > `shopcategories_0` INNER JOIN `shopcategories_1` ON > shopcategories_1.parentcategory_id = shopcategories_0.id > > --------------------- > And this is what I search (notice the end): > --------------------- > > Shopcategory0 Load (0.1ms) SELECT `shopcategories_0`.* FROM > `shopcategories_0` INNER JOIN `shopcategories_1` ON > shopcategories_1.parentcategory_id = shopcategories_0.shopcategory_id > > I suppose there is a way to do that...I''ll appreciate your help !!!Is there a question in there? -e
Of course !
Look at the end:
"
class Shopcategory0 < ActiveRecord::Base
set_table_name "shopcategories_0"
has_many :shopcategory1s, :foreign_key => :parentcategory_id
end
class Shopcategory1 < ActiveRecord::Base
set_table_name "shopcategories_1"
belongs_to :shopcategory0, :foreign_key => :shopcategory_id
end
class Shopcategory0sController < ApplicationController
def show
@shopcategory = Shopcategory0.all (:joins
=> :shopcategory1s)
end
end
---------------------
That''s the SQL result:
---------------------
Shopcategory0 Load (0.1ms) SELECT `shopcategories_0`.* FROM
`shopcategories_0` INNER JOIN `shopcategories_1` ON
shopcategories_1.parentcategory_id = shopcategories_0.id
---------------------
And this is what I search (notice the end):
---------------------
Shopcategory0 Load (0.1ms) SELECT `shopcategories_0`.* FROM
`shopcategories_0` INNER JOIN `shopcategories_1` ON
shopcategories_1.parentcategory_id = shopcategories_0.shopcategory_id
"
On Jul 28, 8:05 pm, Eric
<ericgh...-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
wrote:> On Jul 28, 10:34 am, cocozz
<coc...-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org> wrote:
>
>
>
> > class Shopcategory0 < ActiveRecord::Base
> > set_table_name "shopcategories_0"
>
> > has_many :shopcategory1s, :foreign_key => :parentcategory_id
> > end
>
> > class Shopcategory1 < ActiveRecord::Base
> > set_table_name "shopcategories_1"
>
> > belongs_to :shopcategory0, :foreign_key => :shopcategory_id
> > end
>
> > class Shopcategory0sController < ApplicationController
> > def show
> > @shopcategory = Shopcategory0.all (:joins
> > => :shopcategory1s)
> > end
> > end
>
> > ---------------------
> > That''s the SQL result:
> > ---------------------
>
> > Shopcategory0 Load (0.1ms) SELECT `shopcategories_0`.* FROM
> > `shopcategories_0` INNER JOIN `shopcategories_1` ON
> > shopcategories_1.parentcategory_id = shopcategories_0.id
>
> > ---------------------
> > And this is what I search (notice the end):
> > ---------------------
>
> > Shopcategory0 Load (0.1ms) SELECT `shopcategories_0`.* FROM
> > `shopcategories_0` INNER JOIN `shopcategories_1` ON
> > shopcategories_1.parentcategory_id = shopcategories_0.shopcategory_id
>
> > I suppose there is a way to do that...I''ll appreciate your
help !!!
>
> Is there a question in there?
>
> -e
2009/7/28 cocozz <cocozz-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>:> > Of course ! > > Look at the end: > > " > class Shopcategory0 < ActiveRecord::Base > set_table_name "shopcategories_0" > > has_many :shopcategory1s, :foreign_key => :parentcategory_id > end > > class Shopcategory1 < ActiveRecord::Base > set_table_name "shopcategories_1" > > belongs_to :shopcategory0, :foreign_key => :shopcategory_id > end > > class Shopcategory0sController < ApplicationController > def show > @shopcategory = Shopcategory0.all (:joins > => :shopcategory1s) > end > end > > --------------------- > That''s the SQL result: > --------------------- > > Shopcategory0 Load (0.1ms) SELECT `shopcategories_0`.* FROM > `shopcategories_0` INNER JOIN `shopcategories_1` ON > shopcategories_1.parentcategory_id = shopcategories_0.id > > --------------------- > And this is what I search (notice the end): > --------------------- > > Shopcategory0 Load (0.1ms) SELECT `shopcategories_0`.* FROM > `shopcategories_0` INNER JOIN `shopcategories_1` ON > shopcategories_1.parentcategory_id = shopcategories_0.shopcategory_id > " > > On Jul 28, 8:05 pm, Eric <ericgh...-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org> wrote: >> On Jul 28, 10:34 am, cocozz <coc...-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org> wrote: >> >> >> >> > class Shopcategory0 < ActiveRecord::Base >> > set_table_name "shopcategories_0" >> >> > has_many :shopcategory1s, :foreign_key => :parentcategory_id >> > end >> >> > class Shopcategory1 < ActiveRecord::Base >> > set_table_name "shopcategories_1" >> >> > belongs_to :shopcategory0, :foreign_key => :shopcategory_id >> > end >> >> > class Shopcategory0sController < ApplicationController >> > def show >> > @shopcategory = Shopcategory0.all (:joins >> > => :shopcategory1s) >> > end >> > end >> >> > --------------------- >> > That''s the SQL result: >> > --------------------- >> >> > Shopcategory0 Load (0.1ms) SELECT `shopcategories_0`.* FROM >> > `shopcategories_0` INNER JOIN `shopcategories_1` ON >> > shopcategories_1.parentcategory_id = shopcategories_0.id >> >> > --------------------- >> > And this is what I search (notice the end): >> > --------------------- >> >> > Shopcategory0 Load (0.1ms) SELECT `shopcategories_0`.* FROM >> > `shopcategories_0` INNER JOIN `shopcategories_1` ON >> > shopcategories_1.parentcategory_id = shopcategories_0.shopcategory_id >> >> > I suppose there is a way to do that...I''ll appreciate your help !!! >> >> Is there a question in there? >>I too have difficulty seeing what is the question you are asking. Do you mean you are trying to generate that particular query? What does ''notice the end'' mean? If so why are you trying to generate some particular sql. Generally you should think about what you want to achieve at a higher level and let Rails worry about the query. Colin
According to you, you are stating that.. shopcategories_0 table has both and id column and a shopcategory_id column. You want to reference a foreign key through that table.. You probably need to use... class Shopcategory1 < ActiveRecord::Base set_table_name "shopcategories_1" belongs_to :shopcategory0, :class => :shopcategory0, :foreign_key => :shopcategory_id end You should really use the class for the model that houses the shopcategory_id. If that model is the :shopcategory0 then it appears you aren''t normalizing your tables properly and you might want to rethink your design a bit. Also, your table names are very confusing. -- Posted via http://www.ruby-forum.com/.