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我有以下型号Ruby on Rails的接合处范围错误
Demo
belongs_to :company
Company
has_many :demos
belongs_to :industry
Industry
has_many :companies
我会怎么做以下连接表
Demo.joins(company: :industry).where(company: {industry: {id: 1}})
什么是错误? – Pavan
SQLException:no such column:company.industry_id – Eali
在'companies'表中是否有'industry_id'? – Pavan