How To Solve Grails Error Repeated column in mapping for entity? on Existing Postgresql Database

问题

Hi i have this following Domain in Grails

class Customer {
    static mapping = {
         table 'customer'
         // version is set to false, because this isn't available by default for legacy databases
         version false
         id column:'customerid' //generator:'identity', 
    }
    Long customerid
    Long customergroupid
    String username
    String password
    String name
    String street
    String city
    String province
    String postcode
    String country
    Date dateregistered
    String balance
    Long parentid
    String parentrebate
    String metapath
    Long metalevel
    Integer smsreplystatus
    Integer status
    String reversalurl

    static constraints = {
        customerid(insert:false,update:false)
        customergroupid(max: 9999999999L)
        username(size: 1..20, blank: false)
        password(size: 1..32, blank: false)
        name(size: 1..20, blank: false)
        street(size: 0..50)
        city(size: 0..20)
        province(size: 0..20)
        postcode(size: 0..5)
        country(size: 0..20)
        dateregistered(nullable: true)
        balance()
        parentid(max: 9999999999L)
        parentrebate()
        metapath(size: 1..255, blank: false)
        metalevel(max: 9999999999L)
        smsreplystatus(max: 99999)
        status(max: 99999)
        reversalurl(size: 0..50)
    }
    String toString() {
        return "${customerid}" 
    }
}

i have current database with existing data, and has mapping to GORM with GRAG but i'm getting this error

Caused by: org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'transactionManager': Cannot resolve reference to bean 'sessionFactory' while setting bean property 'sessionFactory'; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'sessionFactory': Invocation of init method failed; nested exception is org.hibernate.MappingException: Repeated column in mapping for entity: postgresql.Customer column: customerid (should be mapped with insert="false" update="false")
    ... 23 more
Caused by: org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'sessionFactory': Invocation of init method failed; nested exception is org.hibernate.MappingException: Repeated column in mapping for entity: postgresql.Customer column: customerid (should be mapped with insert="false" update="false")

回答1:

Had same problem, remove "Long customerid"

This may not be a workable solution but at least the app compiles and creates the table.

Have not investigated at all as I just managed to get this working -- perhaps when setting a custom identity column, the property definition is implied (thus the "repeated column..." error)

来源：https://stackoverflow.com/questions/4457727/how-to-solve-grails-error-repeated-column-in-mapping-for-entity-on-existing-pos