addRelation method
Implementation
void addRelation(ModelRelation rel) {
_check(C.model_relation(
_cModel, rel.id.id, rel.id.uid, rel.targetId.id, rel.targetId.uid));
}
void addRelation(ModelRelation rel) {
_check(C.model_relation(
_cModel, rel.id.id, rel.id.uid, rel.targetId.id, rel.targetId.uid));
}