rails在mysql数据库多表关联查询问题find、 :conditons、: include
@companies = Company.find(:all,:conditions =>["companies.id = myusers.t_company_id", params[:id]], :include => [:myuser] )
即:include关键字, 当然前提是定义了Compnay和Myuser的关联关系，如下
class Myuser < ActiveRecord::Base
belongs_to: company
end
class Company < ActiveRecord::Base
has_one : myuser
end
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