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class Batch < ActiveRecord::Base
has_many :transaction_groups
has_many :transactions , :through=>:transaction_groups
end
class TransactionGroup < ActiveRecord::Base
attr_accessible :g_id
belongs_to :batch
has_many :transactions, dependent => :destroy
end
class Transaction < ActiveRecord::Base
attr_accessible :reference, :transaction_group_id
belongs_to :transaction_group
end
這是我的模型協會通過的has_many持久化數據,我想在數據保存到批量,TransactionGroup和交易如何通過在軌
如何執行這項任務?
batch.transaction_groups.transactions.build(:transaction_group_id => batch.transaction_groups.id) #this gaves me an error