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datastore_multi.go
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/
datastore_multi.go
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package dalgo2datastore
import (
"cloud.google.com/go/datastore"
"fmt"
"github.com/dal-go/dalgo/dal"
)
func datastoreKeysAndValues(records []dal.Record) (keys []*datastore.Key, values []any, err error) {
count := len(records)
keys = make([]*datastore.Key, count)
values = make([]any, count)
for i := range records {
record := records[i]
recordKey := record.Key()
if keys[i], _, err = getDatastoreKey(recordKey); err != nil {
return
}
record.SetError(nil)
data := record.Data()
if recordData, ok := data.(dal.DataWrapper); ok {
data = recordData.Data()
}
values[i] = data
}
return
}
type operation string
const (
operationGet operation = "get"
operationSet operation = "set"
)
func handleMultiError(err datastore.MultiError, records []dal.Record, op operation) datastore.MultiError {
if len(err) == 0 {
return nil
}
if len(err) == len(records) {
for i, e := range err {
record := records[i]
if e == datastore.ErrNoSuchEntity {
record.SetError(fmt.Errorf("%w: %v", dal.ErrRecordNotFound, e))
} else if e != nil {
record.SetError(e)
} else {
record.SetError(dal.NoError)
}
}
if op == operationGet {
err = nil
}
}
return err
}