Support for cascading deletes

cmelchior commented 9 years ago

It should be possible to delete linked objects as well using some defined policy.

Suggestion 1: Possible policies:

NEVER
IF_LAST_LINK
ALWAYS

Suggestion 2: Try to provide the same semantics as the GC, i.e. root objects and strong/weak references. Once an object no longer has any references it is deleted.

Cocoa issue: https://github.com/realm/realm-cocoa/issues/1186

kneth commented 9 years ago

Core issue: https://github.com/realm/realm-core/issues/746

olbogdan commented 9 years ago

Any progress in this issue? I have 3step hierarchy of linked objects, I have dozen of linked RealmList in last step of hierarchy. - that is wrappers of primitive objects that even do not have @primarykey - coz realm does not support list of primitives. It is tonne of biodegradable code for remove all linked objects.

o15a3d4l11s2 commented 8 years ago

+1

martygriffin commented 8 years ago

+1

draskosaric commented 8 years ago

+1

ghost commented 8 years ago

+1

ninjazoete commented 8 years ago

+1

cooler333 commented 8 years ago

+1

dltlr commented 8 years ago

+1

nullable-eth commented 8 years ago

+1

luhui commented 8 years ago

+1

betaSavvy commented 8 years ago

+1

bcamur commented 8 years ago

+1

alexburkhay commented 8 years ago

+1

meilers commented 8 years ago

+1

dongseok0 commented 8 years ago

Any updates?

bmunkholm commented 8 years ago

Really sorry to keep you all in the cold on this feature. It's likely going to be one of the first features that we will tackle after our current P1 backlog issues are handled. Thanks for hanging in there!

Farmertjes commented 8 years ago

+1

JulienDev commented 8 years ago

+1

fabiosassu commented 8 years ago

+1

AlokBansal8 commented 8 years ago

+1

narciero commented 8 years ago

+1

BartBM commented 8 years ago

+1

SilkSama commented 8 years ago

+1

martygriffin commented 8 years ago

+1

nguyenhuynhkhanh commented 8 years ago

+1

o15a3d4l11s2 commented 8 years ago

I also needed such a feature and achieved it quite easy, doing the following in iOS:

inside my RLMObject models I defined a method childrenToDelete, which return all children that should be cascade deleted as an array.
created a new method in RLMRealm named cascadeDelete
inside the cascadeDelete method I call recursively childrenToDelete and get their children and so on until no more children are defined; I keep all of them in an array - this array contains all the objects, that should be deleted when I delete my main object.