Grails; how to refer to a domain property in native sql query - sql

Question

I have a domain class UserProfile which has one to one relationship with another domain class User.The Structure of the domain is provided.
сlass UserProfile {
String fio
String position
String phone
String email
static belongsTo = [user: User]
static constraints = {
// some constraints
}
static mapping = {
//some mapping; user property is not mapped
}
I need to write a native sql query in Grails for UserProfile domain and I don't know how to refer to user property(static belongsTo = [user: User]). I have tried USER_ID but it is not working.
I can't name the column directly using mapping section; I just need to find out how user column in UserProfile domain is named in database and how it can be called in native sql query.

Answer 1

Very Simple if i got your question ,Grails gorm convention for storing fileds in data base is:
Like
user_profile for UserProfile -Domain
and all fileds are speparedted by underscores and most of the time gorm adds _id after a foreign key reference /or a GORM relationship like above One to One and one to Many
[belongsTo=[user]] .
Inside SQL Table
mysql describe user_profile ;
----------------------------------------------------------------
User_Profile
----------------------------------------------------------------
id
version
foo varchar(50)
postion
email
user_instance_id int
-------------------------------------------------------------------
NATIVE SQL QUERY WILL BE :
'select up.user_instance_id from user_profile as up '
the Get all the userInstance objects by querying the user table
'select * from user where user.id = 'the id you get it from the above query'
I hope you have some idea on this please ,if i didnt get it let me know.

Answer 2

I believe if you define user inside UserProfile, then you can access it and will automatically be mapped? It works in my previous projects, I hope it will work with this.
сlass UserProfile {
String fio
String position
String phone
String email
static belongsTo = [user: User]
User userInstance;
static constraints = {
// some constraints
}
Then you can use it
UserProfile.executeQuery("select up.userInstance from UserProfile up")