RecordNotUnique异常

Question

我遇到了类似的错误 通过关联在我的ActiveRecord::RecordNotUnique Exception中has_many

class Customer < ActiveRecord::Base
  has_many :customers_sellers, dependent: :destroy
  has_many :sellers, through: :customers_sellers
end 

class Seller < ActiveRecord::Base
  has_many :customers_sellers, dependent: :destroy
  has_many :customers, through: :customers_sellers
end 

class CustomersSeller < ActiveRecord::Base
  belongs_to :customer
  belongs_to :seller
end

在为特定卖家创建客户时，我遇到了一个错误 CustomersSeller.create()行。

Error: ActiveRecord::RecordNotUnique Exception 

在我的has_many中通过关联。

重复键违反了唯一约束“ customers_sellers_pkey”。

Answer 1

这解决了我的问题：

    begin
          CustomersSeller.where(seller_id: @seller.id, customer_id: @customer.id).first_or_create(seller: @seller, customer: @customer, customer_name: @customer.try(:business_name), status: "Invited")
  rescue ActiveRecord::RecordNotUnique
    retry
  end