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-rw-r--r--app/models/concerns/atomic_internal_id.rb19
1 files changed, 19 insertions, 0 deletions
diff --git a/app/models/concerns/atomic_internal_id.rb b/app/models/concerns/atomic_internal_id.rb
new file mode 100644
index 00000000000..3cc9ce7f03f
--- /dev/null
+++ b/app/models/concerns/atomic_internal_id.rb
@@ -0,0 +1,19 @@
+module AtomicInternalId
+ extend ActiveSupport::Concern
+
+ included do
+ before_validation(on: :create) do
+ set_iid
+ end
+
+ validates :iid, presence: true, numericality: true
+ end
+
+ def set_iid
+ self.iid = InternalId.generate_next(self.project, :issues) if iid.blank?
+ end
+
+ def to_param
+ iid.to_s
+ end
+end