Rails - Feb 2011 - multi tagging model

hi.
it''s my first topic / question..

i have 3 model or better saying 3 db table
1.Post
2.Tag
3.Taggings

in Post       => { title, content}
in Tag        => {name}
in Tagging => {tag_id, post_id}

so it''s easy for gathering tags for each post by using =>
post.taggings.tags
okay!

now if i have another table(model), for example (News, Article, Job),
in this situation how can i improve Tag and Tagging model for working
with them.
it''s mean i have to change Tagging to => {tag_id, post_id, news_id,
article_id, job_id} ?
i can''t figure out... hmm

tnx !

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hi.


i have 3 model or better saying 3 db table
1.Post
2.Tag
3.Taggings

in Post       => { title, content}
in Tag        => {name}
in Tagging => {tag_id, post_id}

so it''s easy for gathering tags for each post by using =>
post.taggings.tags
okay!

now if i have another table(model), for example (News, Article, Job), in
this situation how can i improve Tag and Tagging model for working with
them.
it''s mean i have to change Tagging to => {tag_id, post_id, news_id,
article_id, job_id} ?
i can''t figure out...

tnx !

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use polymorphic association.
drop your taggings model.
add tag_id and tag_type to your tag model and set it up as a polymorphic
associaton for each model you want to add a tag to.

side: if you''re adding tags to models, I suggest you look at
acts_as_taggable_on https://github.com/mbleigh/acts-as-taggable-on

On Mon, Feb 21, 2011 at 1:27 AM, Alireza Savand
<lists-fsXkhYbjdPsEEoCn2XhGlw@public.gmane.org>wrote:
> hi.
>
>
> i have 3 model or better saying 3 db table
> 1.Post
> 2.Tag
> 3.Taggings
>
> in Post       => { title, content}
> in Tag        => {name}
> in Tagging => {tag_id, post_id}
>
> so it''s easy for gathering tags for each post by using =>
> post.taggings.tags
> okay!
>
> now if i have another table(model), for example (News, Article, Job), in
> this situation how can i improve Tag and Tagging model for working with
> them.
> it''s mean i have to change Tagging to => {tag_id, post_id,
news_id,
> article_id, job_id} ?
> i can''t figure out...
>
> tnx !
>
> --
> Posted via http://www.ruby-forum.com/.
>
> --
> 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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> To unsubscribe from this group, send email to
>
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> http://groups.google.com/group/rubyonrails-talk?hl=en.
>
>

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