scala - Updating data in SORM seems possible (even though I was told it aimed at immutable data...) -

i told sorm aims @ immutable data. it's not written on website - @ least not in main parts looking at, bit surprized of rigidity of claim. aware recommend so. maybe missing something.

the examples tell use ".copy(propery = newvalue)" before calling db.save() on object. thats hint.

i interrested in happen if change data , update in database. strangely following worked fine:

case class agent( var name : string )  object db extends instance(   entities = set( entity[agent]() ),   url = "jdbc:h2:mem:hansi" )  class sormtest  extends funsuite {   test("update") {     // store values in db:     val agent = db.save( agent("test") )      agent.name = "hansi"     db.save(agent) } 

it produced update statement in database changed name property corresponding id.

is kind of crazy so? comments developers?

i told sorm aims @ immutable data. it's not written on website

it's stated plenty of times sorm follows functional programming idioms. implies operation on immutable data-structures only.

the examples tell use ".copy(propery = newvalue)" before calling db.save() on object.

that's you're wrong. examples tell use .copy(..) updated immutable value of object it's called on, calling before calling db.save() per se in following:

agent.copy(name = "new name") db.save(agent) 

will have absolutely no effect, because, once again, .copy() doesn't mutate object it's called on, instead returns updated copy of object. proper use following:

val updatedagent = agent.copy(name = "new name") db.save(updatedagent) 

or simply:

db.save( agent.copy(name = "new name") ) 

but fact above has sorm as has functional programming in scala in general. basic stuff how case classes supposed used. please favor , introduce basics of functional programming. wipe out questions on sorm you've had and, i'm sure, plenty of comming otherwise.

your example works , it's supposed to, doesn't change fact goes against basic idioms of functional programming , such unidiomatic use of sorm.