grails - Searching the Owned Members of a Many-to-Many Relationship -

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पुस्तक और लेखक डोमेन वर्गों के साथ निम्नानुसार है: 

  class Book {static belongsTo = Author Static hasMany = [लेखक: लेखक] स्ट्रिंग शीर्षक} वर्ग {लेखक: static hasMany = [किताबें: पुस्तक] स्ट्रिंग का नाम}

मैं एक लेखक द्वारा किताब कैसे खोजूँगा जिसकी शीर्षक " Grails "?

मैंने इसे करने की कोशिश की लेकिन यह काम नहीं करती (विधि का कोई हस्ताक्षर: org.hibernate.collection.PersistentSet.findByTitle () arguemnt प्रकारों के लिए लागू है: (java.lang.String) मान : [Grails]। 

  लेखक लेखक = लेखक। गेट (1) def किताब = लेखक। किताबें। फिंडबाइटटेल ("Grails")
< P>

आप उदाहरण के रूप में निम्न प्रकार से खोज सकते हैं। 

 लेखक लेखक = लेखक .get (1) def b = Book.find (नई किताब (शीर्षक: 'गाइल्स', लेखक: लेखक))

क्वेरीज़ कैसे करें पर जानकारी के लिए देखें।


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