GPMONGODB-3: Exception when saving list of embedded objects #529
Description
Original Reporter: jcyboski
Environment: OSX 10.6.6 Java: 1.6.0_22 Groovy: 1.7.6 Grails: 1.3.6 Plugins: tomcat-1.3.6, mongodb-1.0-M4 (no hibernate plugin)
Version: Not Specified
Migrated From: http://jira.grails.org/browse/GPMONGODB-3
Trying to save a list of embedded objects (non-basic types). Using a single embedded document works fine.
Summary: Domain classes Person, and Address. A person can have a list of addresses.
When using an Array such as Address[] otherAddresses I receive NPE:
{code}
java.lang.NullPointerException
at org.grails.datastore.gorm.GormInstanceApi.save(GormInstanceApi.groovy:139)
at org.grails.datastore.gorm.GormInstanceApi$save$0.callCurrent(Unknown Source)
at org.grails.datastore.gorm.GormInstanceApi$save$0.callCurrent(Unknown Source)
at org.grails.datastore.gorm.GormInstanceApi.save(GormInstanceApi.groovy:87)
at org.grails.datastore.gorm.GormEnhancer$1.call(GormEnhancer.groovy:93)
at emb.PersonController$_closure1.doCall(PersonController.groovy:26)
at emb.PersonController$_closure1.doCall(PersonController.groovy)
at java.lang.Thread.run(Thread.java:680)
{code}
When using an List such as List
{code}
java.lang.IllegalArgumentException: can't serialize class emb.Address
at org.bson.BSONEncoder._putObjectField(BSONEncoder.java:205)
at org.bson.BSONEncoder.putIterable(BSONEncoder.java:230)
at org.bson.BSONEncoder._putObjectField(BSONEncoder.java:179)
at org.bson.BSONEncoder.putObject(BSONEncoder.java:121)
at org.bson.BSONEncoder.putObject(BSONEncoder.java:67)
at com.mongodb.DBApiLayer$MyCollection.insert(DBApiLayer.java:215)
at com.mongodb.DBApiLayer$MyCollection.insert(DBApiLayer.java:180)
at java.lang.Thread.run(Thread.java:680)
{code}
Below are the entire Domain classes and a Controller I used for testing.
Address.groovy:
{code}
package emb
class Address {
String address1
String city
String state
static constraints = {
}
}
{code}
Person.groovy
{code}
package emb
class Person {
Long id
String firstName
String lastName
Integer age
Address homeAddress
Address workAddress
List
otherAddresses// Address[] otherAddresses
static embedded = ['homeAddress', 'workAddress', 'otherAddresses']
static constraints = {
homeAddress(nullable: true, blank: true)
workAddress(nullable: true, blank: true)
otherAddresses(nullable: true)
}
}
{code}
PersonController.groovy
{code}
package emb
class PersonController {
def index = {
Person person = new Person(firstName: "Homer", lastName: "Simpson", age: 33)
person.homeAddress = new Address(address1:" one main st.",
city: "springfield", state: "MA")
person.workAddress = new Address(address1:"one way blvd.",
city: "new york", state: "NY")
Address addr1 = new Address(address1:"2222 6th ave.",
city: "new york", state: "NY")
Address addr2 = new Address(address1:"5555 6th ave.",
city: "new york", state: "NY")
person.otherAddresses = [addr1, addr2]
if(person.validate() && !person.hasErrors()){
person.save()
[message: "Saved"]
}else{
[message: "Error", errors: [person.errors]]
}
}
}
{code}