ruby on rails - next available record id -

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  @user = user.new   
  @ उपयोगकर्ता आईडी  शून्य पर लौटता है लेकिन मुझे बचाने से पहले इसे जानना आवश्यक है I क्या यह संभव है?   
 
 
 नहीं, आप सहेजने से पहले आईडी नहीं पा सकते हैं। आईडी नंबर डेटाबेस से आता है लेकिन जब तक आप  save  को कॉल नहीं करते, तब तक डेटाबेस आईडी को निर्दिष्ट नहीं करेगा यह सब मानते हुए है कि आप निश्चित रूप से ActiveRecord का उपयोग कर रहे हैं।

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