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Hampton wrote:
> Oh wait, one pretty example
>
> class SearchObject
> def initialize(params)
> #build state
> end
>
> def to_sql(conn)
> #build my sql call
> end
> end
The above I like since it is a user defined class, but I don't like adding
to_sql to core classes like Array or Object.
> So, you could easily do this.
>
> User.find(:all, :condition => SearchObject.new(params[:user]))
>
> Crazy! I want to do this!
This would be a nice extension I agree, and it could be handled as an extension
with a little help of duck typing:
class ToSqlExtension
def process( obj, caller )
return Result.new( obj.to_sql ) if obj.respond_to?( :to_sql )
nil
end
end
ActiveRecord::Extensions.register_extension( ToSqlExtension, :adapters=>{
:all }
Extensions could give you the ability to do the following:
User.find( :all, :conditions=>SearchObject.new( params['user'] )
User.find( :all, :conditions=>{ :name_contains => "Jo" }
User.find( :all, :conditions=>{ :name=>"John" }
Zach
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