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# Which Problems Are Solved Milestones used existing events from a number of aggregates. OIDC session is one of them. We noticed in load-tests that the reduction of the oidc_session.added event into the milestone projection is a costly business with payload based conditionals. A milestone is reached once, but even then we remain subscribed to the OIDC events. This requires the projections.current_states to be updated continuously. # How the Problems Are Solved The milestone creation is refactored to use dedicated events instead. The command side decides when a milestone is reached and creates the reached event once for each milestone when required. # Additional Changes In order to prevent reached milestones being created twice, a migration script is provided. When the old `projections.milestones` table exist, the state is read from there and `v2` milestone aggregate events are created, with the original reached and pushed dates. # Additional Context - Closes https://github.com/zitadel/zitadel/issues/8800
59 lines
1.6 KiB
Go
59 lines
1.6 KiB
Go
package command
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import (
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"github.com/zitadel/zitadel/internal/eventstore"
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"github.com/zitadel/zitadel/internal/repository/milestone"
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)
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type MilestonesReachedWriteModel struct {
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eventstore.WriteModel
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MilestonesReached
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}
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func NewMilestonesReachedWriteModel(instanceID string) *MilestonesReachedWriteModel {
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return &MilestonesReachedWriteModel{
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WriteModel: eventstore.WriteModel{
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AggregateID: instanceID,
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InstanceID: instanceID,
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},
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MilestonesReached: MilestonesReached{
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InstanceID: instanceID,
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},
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}
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}
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func (m *MilestonesReachedWriteModel) Query() *eventstore.SearchQueryBuilder {
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return eventstore.NewSearchQueryBuilder(eventstore.ColumnsEvent).
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AddQuery().
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AggregateTypes(milestone.AggregateType).
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AggregateIDs(m.AggregateID).
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EventTypes(milestone.ReachedEventType, milestone.PushedEventType).
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Builder()
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}
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func (m *MilestonesReachedWriteModel) Reduce() error {
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for _, event := range m.Events {
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if e, ok := event.(*milestone.ReachedEvent); ok {
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m.reduceReachedEvent(e)
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}
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}
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return m.WriteModel.Reduce()
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}
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func (m *MilestonesReachedWriteModel) reduceReachedEvent(e *milestone.ReachedEvent) {
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switch e.MilestoneType {
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case milestone.InstanceCreated:
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m.InstanceCreated = true
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case milestone.AuthenticationSucceededOnInstance:
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m.AuthenticationSucceededOnInstance = true
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case milestone.ProjectCreated:
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m.ProjectCreated = true
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case milestone.ApplicationCreated:
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m.ApplicationCreated = true
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case milestone.AuthenticationSucceededOnApplication:
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m.AuthenticationSucceededOnApplication = true
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case milestone.InstanceDeleted:
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m.InstanceDeleted = true
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}
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}
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