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Wim Van LaerandGitHub
9b064d8b74
# Which Problems Are Solved - Typos - Punctuation - Markdown table formatting - ... (A bunch of issues my editor gave) # How the Problems Are Solved # Additional Changes # Additional Context
137 lines
3.2 KiB
Go
137 lines
3.2 KiB
Go
package eventstore
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import (
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"context"
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"encoding/json"
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"strconv"
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"strings"
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"time"
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"github.com/shopspring/decimal"
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"github.com/zitadel/logging"
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"github.com/zitadel/zitadel/internal/api/authz"
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"github.com/zitadel/zitadel/internal/api/service"
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)
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var (
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_ Event = (*BaseEvent)(nil)
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)
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// BaseEvent represents the minimum metadata of an event
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type BaseEvent struct {
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ID string
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EventType EventType `json:"-"`
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Agg *Aggregate `json:"-"`
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Seq uint64
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Pos decimal.Decimal
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Creation time.Time
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previousAggregateSequence uint64
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previousAggregateTypeSequence uint64
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//User who created the event
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User string `json:"-"`
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//Service which created the event
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Service string `json:"-"`
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Data []byte `json:"-"`
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}
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// Position implements Event.
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func (e *BaseEvent) Position() decimal.Decimal {
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return e.Pos
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}
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// EditorService implements Command
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func (e *BaseEvent) EditorService() string {
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return e.Service
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}
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// EditorUser implements Command
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func (e *BaseEvent) EditorUser() string {
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return e.User
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}
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// Creator implements action
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func (e *BaseEvent) Creator() string {
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return e.EditorUser()
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}
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// Type implements action
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func (e *BaseEvent) Type() EventType {
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return e.EventType
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}
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// Sequence is an increasing number unique for the event
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func (e *BaseEvent) Sequence() uint64 {
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return e.Seq
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}
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// CreationDate is the time, the event is inserted into the eventstore
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func (e *BaseEvent) CreationDate() time.Time {
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return e.Creation
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}
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// CreatedAt implements Event
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func (e *BaseEvent) CreatedAt() time.Time {
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return e.CreationDate()
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}
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// Aggregate implements action
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func (e *BaseEvent) Aggregate() *Aggregate {
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return e.Agg
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}
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// DataAsBytes returns the payload of the event. It represents the changed fields by the event
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func (e *BaseEvent) DataAsBytes() []byte {
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return e.Data
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}
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// Revision implements action
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func (e *BaseEvent) Revision() uint16 {
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revision, err := strconv.ParseUint(strings.TrimPrefix(string(e.Agg.Version), "v"), 10, 16)
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logging.OnError(err).Debug("failed to parse event revision")
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return uint16(revision)
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}
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// Unmarshal implements Event
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func (e *BaseEvent) Unmarshal(ptr any) error {
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if len(e.Data) == 0 {
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return nil
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}
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return json.Unmarshal(e.Data, ptr)
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}
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const defaultService = "zitadel"
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// BaseEventFromRepo maps a stored event to a BaseEvent
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func BaseEventFromRepo(event Event) *BaseEvent {
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return &BaseEvent{
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Agg: event.Aggregate(),
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EventType: event.Type(),
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Creation: event.CreatedAt(),
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Seq: event.Sequence(),
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Service: defaultService,
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User: event.Creator(),
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Data: event.DataAsBytes(),
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Pos: event.Position(),
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}
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}
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// NewBaseEventForPush is the constructor for events which will be pushed into the eventstore.
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// The resource owner of the aggregate is only used if it's the first event of this aggregate type.
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// Afterward, the resource owner of the first previous events is taken.
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func NewBaseEventForPush(ctx context.Context, aggregate *Aggregate, typ EventType) *BaseEvent {
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return &BaseEvent{
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Agg: aggregate,
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User: authz.GetCtxData(ctx).UserID,
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Service: service.FromContext(ctx),
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EventType: typ,
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}
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}
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func (*BaseEvent) Fields() []*FieldOperation {
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return nil
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}
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