Question

i use grails-1.3.2 and gorm-hbase-0.2.4 plugin.

Sometimes i need to change tables structure(add new tables or columns).
I have created Car table:

class Car{
    static belongsTo = [user:User]

    String color
    String model
    //.....

    static constraints = {
    }
}

but when i want to create car object:

def create = {
        Car car = new Car()
        car.properties = params
        car.save(flush: true)        
 }

I got the following exception:

ERROR gorm.SavePersistentMethod  - APP_CAR
org.apache.hadoop.hbase.TableNotFoundException: APP_CAR

After i run application with create-drop, everithing starts work good..
but i can not after every changes delete all data,
i thought plugin have to do all updates

so, i am looking some way after changind tables structure continue to run application without drop tables..

If anybody know solution please help.

Answer 1

Grails will NOT do automatic updates to your tables, what if it drops a column in production automatically? Maybe that is not what you wanted.

There is a database migration plugin to do this and here is an excellent link that explains it. Note that you need to use grails prod instead of using the ones directly in the link, otherwise it will run in development mode only. The link does not show prod in its commands.

The official links are here and the spring source blog about this is here.