禁用鍵自動生成導入與Ruby Activerecord擴展

我想使用ar-extensions gem將CSV文件中的記錄導入到Oracle表中，它通過序列生成鍵列的值，但該值在我的文件，我需要它保持那樣，有什麼方法可以禁用關鍵的自動生成？禁用鍵自動生成導入與Ruby Activerecord擴展

這是我的代碼，做一個黃瓜的任務，必須加載初始數據爲測試準備：

require 'rubygems' 
require 'active_record' 
require 'CSV' 
require 'ar-extensions' 

#Logger Objects are handy for finding out why imports crash 
logger = Logger.new('import.log') 
#Set the Logger level to Info to prevent boring debug messages 
logger.level = Logger::INFO 

fileName = " " 
tableName = " " 
validate = true 

ActiveRecord::Base::establish_connection(
    :adapter=>"oracle_enhanced", 
    :host=>"192.168.202.123", 
    :port=>"1521", 
    :database=>"XE", 
    :username=>"xxx", 
    :password=>"xxx") 

#Connect Logger to Active Record 
ActiveRecord::Base.logger = logger 

class Oacm < ActiveRecord::Base 

    self.table_name = "OACM" 
    #self.set_primary_key "id_acm" 
    self.set_sequence_name :id_acm 
    attr_accessible :id_acm 
    attr_accessible :descr 
    attr_accessible :gp_acm_type_fk 
    attr_accessible :chan_fk 
    attr_accessible :dt_start 
    attr_accessible :dt_end 
    attr_accessible :ext_code_ref 
    attr_accessible :flg_burn 
    attr_accessible :layout_code 
    attr_accessible :max_num 
    attr_accessible :flg_dpl 
    attr_accessible :flg_def 
    attr_accessible :flg_state 
    attr_accessible :usr_ins 
    attr_accessible :ts_ins 
    attr_accessible :usr_del 
    attr_accessible :ts_del 
    attr_accessible :usr_upd 
    attr_accessible :ts_upd 
    attr_accessible :ver_no 
    attr_accessible :ord_no 
    attr_accessible :cpccchk 
    attr_accessible :ts_dpl 
    attr_accessible :ts_dpl 
end 

def cpccchk_before_type_cast 
    cpccchk 
end 

Given(/^a file named "(.*?)" containing all "(.*?)" data$/) do |arg1, arg2| 
    fileName = arg1 
    tableName = arg2 
    #puts arg1.to_s << " " << arg2.to_s 
end 

Then(/^it should be loaded$/) do 
    preparedRecord = [] 
    CSV.foreach(fileName, :headers => true) do |row| 
    hashedRow = row.to_hash 
    puts hashedRow 
    #Oacm.id_acm = hashedRow["id_acm"] 
    preparedRecord << Oacm.new(hashedRow) 
    #puts preparedRecord.to_s 

    end 
    #puts preparedRecord.to_s 
    Oacm.import preparedRecord, :validate => true 
end

這是錯誤消息我得到： OCIError: ORA-02289: sequence does not exist: INSERT INTO "OACM" ("ID_ACM","DESCR","GP_ACM_TYPE_FK","CHAN_FK","DT_START","DT_END","EXT_CODE_REF","FLG_BURN","LAYOUT_CODE","MAX_NUM","FLG_DPL","FLG_DEF","FLG_STATE","USR_INS","TS_INS","USR_DEL","TS_DEL","USR_UPD","TS_UPD","VER_NO","ORD_NO","CPCCCHK","TS_DPL") VALUES(id_acm.nextval,'DESCR','001','001',TO_DATE('01-APR-10','YYYY-MM-DD HH24:MI:SS'),TO_DATE('30-APR-11','YYYY-MM-DD HH24:MI:SS'),'','0','2',0,'3','','0',NULL,NULL,NULL,NULL,3,TO_TIMESTAMP('13-APR-11 18:21:24','YYYY-MM-DD HH24:MI:SS:FF6'),0,NULL,NULL,TO_TIMESTAMP('3','YYYY-MM-DD HH24:MI:SS:FF6')) (ActiveRecord::StatementInvalid)

謝謝

來源

2013-06-27 Andrea

對於它的價值，我對ActiveRecord documentation以及網絡上的其他註釋（如this）的閱讀是不可能的。 Oracle適配器使用並需要用於生成id的序列，更重要的是，ActiveRecord不允許從外部設置其值爲id。您看到的錯誤是id_acm.nextval SQL表達式的結果，假定id_acm是一個序列。我不認爲任何ar-extensions寶石可以做的事情都可以解決這種情況。

來源

2013-06-27 10:47:10

即使在發佈之前我已經做了大量的研究和測試，可悲的是我認爲你是對的 – Andrea

禁用鍵自動生成導入與Ruby Activerecord擴展

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