ruby on rails - How to use active_enum enumarate in an HTML select element? -

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मैं अपने रेल 4 अनुप्रयोग में active_enum मणि का उपयोग कर रहा हूं। 

  मणि 'active_enum'

मेरे मॉडल में, मुझे एक गणना है: 

  वर्ग बैठक & lt; ActiveRecord :: बेस गणना करें: प्रतिभागी_प्रकार मूल्य 0 = & gt; 'जूनियर' मान 1 = & gt; 'सीनियर' वैल्यू 2 = & gt; 'एडमिनिस्ट्रेशन एंड एंड एंड'

मैं इन मानों को एक तत्व का चयन कैसे कर सकता हूँ?

मैंने निम्नलिखित की कोशिश की है लेकिन मुझे एक रनटाइम त्रुटि मिलती है: 

  = f.select: participant_type, Loan.participant_type अपरिभाषित विधि # भाग के लिए `participant_type 'वर्ग: 0x007f8803581050 & gt;   "post-text" itemprop = "text"> 
 प्रतिभागी प्रकार को एक अलग वर्ग के रूप में बनाएं जो कि ActiveEnum :: बेस बढ़ाता है और  .to_select  विधि। 
 
  = f.select: participant_type, पार्टिसिपेंट टाइप करें: _select, आवश्यक: true  
 
 अगर यह सक्रिय रिकॉर्ड एन्यूम है , नीचे की कोशिश करें: 
 
 यह एक बहुवचन  participant_types  जैसा में उल्लिखित है। 
 
  = f.select: participant_type, Meeting.participant_types, आवश्यक: सच

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