gorm

I tried to change the standard 'id' in grails: calls Book { String id String title static mapping { id generator:'assigned' } } unfortunately, I soon noticed that this breaks my bootstrap. Instead of new Book (id:'some ISBN', title:'great book').save(flush:true, failOnError:true) I had to use def b = new Book(title:'great book') b.id = 'some ISBN' b.save(flush:true, failOnError:true) otherwise I get an 'ids for this class must be manually assigned before calling save()' error. but that's ok so far. I then encountered the same problem in the save action of my bookController. But this time, the

In grails, How would one find all the children in a one-to-many relationship e.g., class Employee { static hasMany = [ subordinates: Employee ] static belongsTo = [ manager: Employee ] } Using a single manager, how would one get the subordinates of all subordinates (like traversing a object graph)? The recursive closure works if you don't want to modify the domain. Otherwise you could add a transient property to the Employee domain class like allSubordinates in this example: class Employee { String name static hasMany = [ subordinates: Employee ] static belongsTo = [ manager: Employee ] static

I'm using Grails, and I have a domain model with multiple hasMany attributes to the same domain class, which looks like this: static hasMany = [ posts : Post, likes : Post, dislikes : Post ] The problem that I'm running into is that when I add something to the posts list, it also somehow makes it into the likes and dislikes lists. At least, that's how it looks when I iterate through each of those lists. I think that the issue is that I also have the following relationship in my Post domain: static belongsTo = [ contributer : Contributer ] What is the best way of going about configuring these

I'm currently wondering how it is possible to use the Groovy ORM Layer from Grails standalone outside of the Grails Framework. There is a Documentation Entry for doing so, but the ZIP file only links to an empty page . I downloaded Grails 1.2-M3 but I couldn't find anything in the docs either. Does anybody know what the current state is and how to accomplish this? AFAIK it is possible to use GORM standalone since Grails 1.1. This allows you to use GORM as your ORM without using the full Grails framework However, I don't think it's possible to use GORM outside of Spring (which is the foundation

Part I In a Grails app, I understand that you enable the 2nd level cache per domain class by adding static mapping { cache true } By default the 2nd level cache is only used when get() is called, but it can also be used for criteria queries and dynamic finders by adding cache true to the query. However, I'm still not sure I understand how the query cache works. My best guess is that: there are separate query caches for each domain class, e.g. one for Book and another for Author before a query like Author.findByName('bob', [cache: true]) is executed, a cache key is computed, which is based on