class Health::PhyExamRecordItem < ActiveRecord::Base
belongs_to :phy_exam_record, :class_name=>"Health::PhyExamRecord"
belongs_to :phy_exam_tpl_item, :class_name=>"Health::PhyExamTplItem"
scope :get_record_items, -> (category_id,phy_exam_record_id) {
self.joins(:phy_exam_tpl_item).where("health_phy_exam_record_items.phy_exam_record_id = ?",phy_exam_record_id) & Health::PhyExamTplItem.group_category(category_id)
}
end
说明：scope 方法中进行多表查询需要调用
输出结果不对！
ckl
#1
2014年03月27日
self.joins(:phy_exam_tpl_item).where("health_phy_exam_record_items.phy_exam_record_id = ?",phy_exam_record_id).merge(Health::PhyExamTplItem.group_category(category_id))
}
知道错误了！把&改成 merge 就可以了