Thanks Pat!

On May 25, 5:56 am, Pat Allan <[email protected]> wrote:
> Figured out and fixed it - the fault is with acts-as-taggable-on, as it has 
> explicit conditions for the joins that don't allow for join aliases. TS now 
> checks for these (only if you're using acts-as-taggable-on), and replaces 
> them appropriately.
>
> Fix is in both master and rails3 branches, will hopefully have gem releases 
> out soon.
>
> --
> Pat
>
> On 24/05/2011, at 3:05 PM, sparky wrote:
>
>
>
>
>
>
>
> > Thanks Pat, please let me know if there's any info I can provide to
> > help.  I'm digging through the code to see if I can come up with a
> > patch so any thoughts on where to start poking around would help me
> > out.
>
> > Thanks again.
>
> > s.park
>
> > On May 24, 12:23 am, Pat Allan <[email protected]> wrote:
> >> Someone else raised this issue just the other day as well. I'll hopefully 
> >> have some time to create a test app and give it a spin soon, see if I can 
> >> figure out what's causing the problems.
>
> >> --
> >> Pat
>
> >> On 24/05/2011, at 2:46 AM, sparky wrote:
>
> >>> I have a model that has acts_as_taggable in 2 contexts
>
> >>> class Asset < ActiveRecord::Base
> >>>  acts_as_taggable
> >>>  acts_as_taggable_on :categories
>
> >>> ...
> >>> end
>
> >>> Basically, I want to maintain a list of tags for the Asset as well as
> >>> a list of catergories.  Both of which I'd like to index.
>
> >>> When I define the indices,
>
> >>> I tried
>
> >>> define_index do
> >>>    indexes tags.name, :as => :categories
> >>>    indexes categories.name, :as => :tags
> >>>  ....
> >>> end
>
> >>> which generates the following sql..... (relevant snippets shown)
> >>> sql_query = SELECT ...
> >>> GROUP_CONCAT(DISTINCT IFNULL(`tags`.`name`, '0') SEPARATOR ' ') AS
> >>> `categories`,
> >>> GROUP_CONCAT(DISTINCT IFNULL(`categories_assets`.`name`, '0')
> >>> SEPARATOR ' ') AS `tags`
> >>> ....
> >>> FROM `assets`
> >>> LEFT OUTER JOIN `taggings` ON `assets`.`id` = `taggings`.`taggable_id`
> >>> AND `taggings`.`taggable_type` = 'Asset'
> >>> LEFT OUTER JOIN `tags` ON taggings.tagger_id IS NULL AND
> >>> taggings.context = 'tags'
> >>> LEFT OUTER JOIN `taggings` `categories_assets_join` ON `assets`.`id` =
> >>> `categories_assets_join`.`taggable_id` AND
> >>> `categories_assets_join`.`taggable_type` = 'Asset' LEFT OUTER JOIN
> >>> `tags` `categories_assets` ON taggings.tagger_id IS NULL AND
> >>> taggings.context = 'categories'
>
> >>> The problem is here 2 fold it looks like.  In the joins, it joins on
> >>> the tagging tables twice,  and in the join to the actual tags table,
> >>> it doesn't specify the tag.id so I get a massively cartesian query
> >>> that takes forever to run and indexes the wrong data.
>
> >>> What I think the from clause should look like is more like
>
> >>> LEFT OUTER JOIN `taggings` ON `assets`.`id` =
> >>> `taggings`.`taggable_id` AND `taggings`.`taggable_type` = 'Asset'
> >>> LEFT OUTER JOIN `tags` category_tags ON taggings.context =
> >>> 'categories' and taggings.tag_id = category_tags.id
> >>> LEFT OUTER JOIN `tags` tag_tags ON taggings.context = 'tags' and
> >>> taggings.tag_id = tag_tags.id
>
> >>> So my question is the following.  What's the best way to fix the
> >>> indexing query?  Should I try and figure out how the sql is being
> >>> generated and submit a patch?  Should i disabled the ts:config and
> >>> handwrite the config or have I missed a way to pass in my own indexing
> >>> query into sphinx.yml so that I can free regenerate the config file
> >>> but use my query.
>
> >>> Thanks in advance for any help.
>
> >>> s.park
>
> >>> --
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