Thanks Pat! What you gave me is close, but it's missing something.
Here is my setup:
Order has a define_index with indexes and attributes (nothing
special).
Now I have a plugin that will extend Order by including a module
(Order.send(:include, OrderMixin)).
The problem I have with your suggestion is that the indexes aren't
actually created until after the mixin happens.
So if I have this:
class Order < ActiveRecord::Base
define_index do
...
end
end
module OrderMixin
def self.included(base)
source = sphinx_indexes.first.sources.first
columns = FauxColumn.coerce(:created_at)
options = {}
ThinkingSphinx::Attribute.new(source, columns, options)
end
end
Order.sphinx_indexes is actually empty because 'define_indexes' hasn't
been called yet. Now, if I call 'define_indexes' before it try add my
new attribute it all works as expected.
Thanks for helping out! Let me know if you think there is a problem
with calling 'define_indexes' on my own.
On Sep 6, 10:18 am, "Pat Allan" <[email protected]> wrote:
> Hi Tony
>
> You're definitely wading into undocumented (and untried) waters - I've
> not done this before, nor have I heard of anyone trying to do this
> before.
>
> Still, it shouldn't be too difficult (in theory). The code you want to
> keep an eye on is ThinkingSphinx::Index::Builder... but here's an
> example, adding an attribute to a given source:
>
> source = Order.sphinx_indexes.first.sources.first
> columns = FauxColumn.coerce(:created_at)
> options = {:type => :datetime} # not needed in this case - TS will
> figure it out
> ThinkingSphinx::Attribute.new(source, columns, options)
>
> An index can have many sources, but starts with just one, so you should
> be able to access existing sources easily enough. The columns can be
> symbols referring to columns, and the options are a hash of options you
> may pass through to a 'has' call normally. Also: the attribute will
> automatically add itself to the source.
>
> Hope this helps!
>
> --
> Pat
>
> On 9/1/2010, "BigRefT" <[email protected]> wrote:
>
>
>
> >I have searched and searched but have yet to find any info on if this
> >is possible. I have an Order model that calls define_index in the main
> >app. I am creating a plug-in that extends the Order model and I want
> >to insert a new attribute into the index for Order. Is this possible?
>
> >I have read through post after post with nothing even close, and I
> >have tried to go into the TS code base and see if I can do it
> >manually.
>
> >The closest I got was this:
>
> >Order.sphinx_index.first.attributes << ...
>
> >Where ... would be the missing piece. I know it needs to be an
> >Attribute, but I don't where to start.
>
> >Any help would be appreciated.
>
> >Thanks
> >Tony
>
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