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fix: handle multiple statements for a single event in projections (#2313)

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* fix: handle multiple statements for a single event in projections

* export func type

* fix test

* Update internal/eventstore/handler/crdb/statement.go

Co-authored-by: Silvan <silvan.reusser@gmail.com>

* Update internal/eventstore/handler/crdb/statement.go

Co-authored-by: Silvan <silvan.reusser@gmail.com>

* change to pointers

* add error test case

Co-authored-by: Silvan <silvan.reusser@gmail.com>
This commit is contained in:
Livio Amstutz
2021-09-08 13:54:31 +02:00
committed by GitHub
parent ec6a3a1847
commit 1ac1492fd3
11 changed files with 546 additions and 301 deletions
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14
internal/eventstore/handler/crdb/handler_stmt.go
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@@ -116,7 +116,7 @@ func (h *StatementHandler) SearchQuery() (*eventstore.SearchQueryBuilder, uint64
}
//Update implements handler.Update
func (h *StatementHandler) Update(ctx context.Context, stmts []handler.Statement, reduce handler.Reduce) (unexecutedStmts []handler.Statement, err error) {
func (h *StatementHandler) Update(ctx context.Context, stmts []*handler.Statement, reduce handler.Reduce) (unexecutedStmts []*handler.Statement, err error) {
tx, err := h.client.BeginTx(ctx, nil)
if err != nil {
return stmts, errors.ThrowInternal(err, "CRDB-e89Gq", "begin failed")
@@ -158,7 +158,7 @@ func (h *StatementHandler) Update(ctx context.Context, stmts []handler.Statement
return stmts, handler.ErrSomeStmtsFailed
}
unexecutedStmts = make([]handler.Statement, len(stmts)-(lastSuccessfulIdx+1))
unexecutedStmts = make([]*handler.Statement, len(stmts)-(lastSuccessfulIdx+1))
copy(unexecutedStmts, stmts[lastSuccessfulIdx+1:])
stmts = nil
@@ -174,7 +174,7 @@ func (h *StatementHandler) fetchPreviousStmts(
stmtSeq uint64,
sequences currentSequences,
reduce handler.Reduce,
) (previousStmts []handler.Statement, err error) {
) (previousStmts []*handler.Statement, err error) {
query := eventstore.NewSearchQueryBuilder(eventstore.ColumnsEvent)
queriesAdded := false
@@ -202,18 +202,18 @@ func (h *StatementHandler) fetchPreviousStmts(
}
for _, event := range events {
stmts, err := reduce(event)
stmt, err := reduce(event)
if err != nil {
return nil, err
}
previousStmts = append(previousStmts, stmts...)
previousStmts = append(previousStmts, stmt)
}
return previousStmts, nil
}
func (h *StatementHandler) executeStmts(
tx *sql.Tx,
stmts []handler.Statement,
stmts []*handler.Statement,
sequences currentSequences,
) int {
@@ -244,7 +244,7 @@ func (h *StatementHandler) executeStmts(
//executeStmt handles sql statements
//an error is returned if the statement could not be inserted properly
func (h *StatementHandler) executeStmt(tx *sql.Tx, stmt handler.Statement) error {
func (h *StatementHandler) executeStmt(tx *sql.Tx, stmt *handler.Statement) error {
if stmt.IsNoop() {
return nil
}