gitee.com/go-genie/sqlx@v1.0.3/scanner/scan.go (about) 1 package scanner 2 3 import ( 4 "context" 5 "database/sql" 6 7 "github.com/pkg/errors" 8 ) 9 10 var RecordNotFound = errors.New("record is not found") 11 12 func Scan(ctx context.Context, rows *sql.Rows, v interface{}) error { 13 if rows == nil { 14 return nil 15 } 16 defer rows.Close() 17 18 si, err := ScanIteratorFor(v) 19 if err != nil { 20 return err 21 } 22 23 for rows.Next() { 24 item := si.New() 25 26 if scanErr := scanTo(context.Background(), rows, item); scanErr != nil { 27 return scanErr 28 } 29 30 if err := si.Next(item); err != nil { 31 return err 32 } 33 } 34 35 if mustHasRecord, ok := si.(interface{ MustHasRecord() bool }); ok { 36 if !mustHasRecord.MustHasRecord() { 37 return RecordNotFound 38 } 39 } 40 41 if err := rows.Err(); err != nil { 42 return err 43 } 44 45 // Make sure the query can be processed to completion with no errors. 46 if err := rows.Close(); err != nil { 47 return err 48 } 49 50 return nil 51 }