Question

I’m new to MongoDb and I have following question:

class Venue {   

String name 
List<String> tags

    static mapWith = "mongo"

static mapping = {
    tags index:true     
}


new Venue(name: 'Test1', tags:['abc', 'def']).save()
new Venue(name: 'Test2', tags:['abc', 'ghi']).save()

Now I wanna query for Venues with a particular tag.

def venues = Venue.getByTag(['def']);

Unfortunately the query does not work. Is there a better approach?

Now I know how to get the venues with a particular tag:
def venues = Venue.withCriteria {
eq ‘tags’, ‘def’
}

How can I discover if the index will be used?

Answer 1

Dynamic finders start with “find”, not “get”.

So you whould write something like :

def venues = Venue.findAllByTag("def");