Comments on: URL Management and Acts As Nested Set http://blogs.law.harvard.edu/lianaleahy/2008/08/28/url-management-and-acts-as-nested-set/ exploits of a mom on rails Thu, 05 Nov 2009 22:04:02 -0500 http://wordpress.org/?v=2.8.4 hourly 1 By: lianaleahy http://blogs.law.harvard.edu/lianaleahy/2008/08/28/url-management-and-acts-as-nested-set/comment-page-1/#comment-20 lianaleahy Fri, 19 Sep 2008 14:24:18 +0000 http://blogs.law.harvard.edu/lianaleahy/?p=20#comment-20 I found a solution to the problem detailed in my note above. <b>has_many :through</b> comes through again! Josh created a patch last year for an enhancement to Rails dynamic finders. The new feature is that if you pass a hash to the finder, it will still use only the values named in the finder to find the object, but it will create a new object using all the values. Check out the link below for more details: http://blog.hasmanythrough.com/2007/3/14/dynamic-finders-with-hash-attributes-for-creation Nice! I found a solution to the problem detailed in my note above. has_many :through comes through again!

Josh created a patch last year for an enhancement to Rails dynamic finders. The new feature is that if you pass a hash to the finder, it will still use only the values named in the finder to find the object, but it will create a new object using all the values. Check out the link below for more details:

http://blog.hasmanythrough.com/2007/3/14/dynamic-finders-with-hash-attributes-for-creation

Nice!

]]> By: lianaleahy http://blogs.law.harvard.edu/lianaleahy/2008/08/28/url-management-and-acts-as-nested-set/comment-page-1/#comment-12 lianaleahy Wed, 10 Sep 2008 15:27:52 +0000 http://blogs.law.harvard.edu/lianaleahy/?p=20#comment-12 P.S. Don't forget to add acts_as_nested_set to your model. And if you have multiple roots in your tree, you'll need to add the scope. (e.g. :scope => :root_id) And by the way, to migrate an old table... simply add the lft and rgt columns. Then in you code add a ".renumber_all". This will fill in the new columns with their proper values. P.S. Don’t forget to add acts_as_nested_set to your model. And if you have multiple roots in your tree, you’ll need to add the scope. (e.g. :scope => :root_id)

And by the way, to migrate an old table… simply add the lft and rgt columns. Then in you code add a “.renumber_all”. This will fill in the new columns with their proper values.

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