Grails lazy fetch in bidirectional one-to-many

Question

i've confused by lazy initialized collections in a bidirectional one-to-many relation,

i've two domains Module and Rule, there is a bidirectional otm between them

Class Module{
..
static hasMany = [providedRules : Rule]
..
}

Class Rule{
..
static belongsTo = [module : Module]
..
}

a simple method for testing:

def module = Module.get(id)
module.providedRules.each{
println it.description // i expected a query to Rule table for each iteration
}

i would expect a query for each access to "description" property, but i didn't see any queries for iterations.

have you any ideas ?

thanks

Answer 1

Add logging like this and see what happens in logs:

datasource {
...
logSql = true
...
}

See also fetching in docs Update: Checked in grails. Remove belongsTo from Rule and it works like you want. Lokks like if bidirectional mapping, it loads not a proxy but full object.