使用Thinking Sphinx搜索索引模型对象的集合(Searching through a collection of indexed model objects using Thinking Sphinx)

 我有一个属于用户的技术模型，由Thinking Sphinx索引。 
 
 我的模型中还有一个方法返回一个Technique对象数组： 
 
def possible_children(user)
    user.techniques - (self.children + [self])
end
 
 这只是采用用户拥有的技术，减去已经是'self'技术对象的子项的技术，以及'self'本身，并返回剩余的技术对象。 
 
 然后在控制器中我实例化一组可能的孩子，如下所示： 
 
 @possible_children = @technique.possible_children(current_user).search params[:search]
 
 这将返回“未定义的方法'搜索'＃” 
 
 不确定这是否相关，但发生的控制器不是TechniquesController。 
 
 我想要做的是搜索由Model方法返回的任意集合。 
 
 有任何想法吗？ 
 
 如果我需要提供更多信息，请告诉我。 谢谢。 

I have a Technique model which belongs_to User and is indexed by Thinking Sphinx.
 
I also have a method in my model that returns an array of Technique objects: 
 
def possible_children(user)
    user.techniques - (self.children + [self])
end
 
This just takes the techniques that a user has, subtracts out those of the techniques that are already the children of the 'self' technique object, along with 'self' itself, and returns the remaining technique objects.
 
Then in a controller I instantiate a collection of possible children like so: 
 
 @possible_children = @technique.possible_children(current_user).search params[:search]
 
This returns an "undefined method 'search' for #"
 
Not sure if this is relevant but the controller this takes place in is not the TechniquesController.
 
What I am trying to do is search an arbitrary collection returned by a Model method.
 
Any ideas?
 
Let me know if I need to provide more information. Thank you.

原文：https://stackoverflow.com/questions/6591054