diff options
Diffstat (limited to 'lib/sql/table.go')
| -rw-r--r-- | lib/sql/table.go | 55 |
1 files changed, 55 insertions, 0 deletions
diff --git a/lib/sql/table.go b/lib/sql/table.go new file mode 100644 index 00000000..3dbdb984 --- /dev/null +++ b/lib/sql/table.go @@ -0,0 +1,55 @@ +// Copyright 2020, Shulhan <m.shulhan@gmail.com>. All rights reserved. +// Use of this source code is governed by a BSD-style +// license that can be found in the LICENSE file. + +package sql + +import ( + "database/sql" + "fmt" + "strings" +) + +// +// Table represent a tuple or table in database. +// +// A table has Name, PrimaryKey, and list of Row. +// +type Table struct { + Name string // Table name, required. + PrimaryKey string // Primary key of table, optional. + Rows []Row // The row or data in the table, optional. +} + +// +// Insert all rows into table, one by one. +// +// On success, it will return list of ID, if table has primary key. +// +func (table *Table) Insert(tx *sql.Tx) (ids []int64, err error) { + for _, row := range table.Rows { + names, holders, values := row.ExtractSQLFields() + if len(names) == 0 { + continue + } + + //nolint: gosec + q := fmt.Sprintf("INSERT INTO %s (%s) VALUES (%s)", + table.Name, strings.Join(names, ","), + strings.Join(holders, ",")) + + res, err := tx.Exec(q, values...) + if err != nil { + return nil, err + } + + id, err := res.LastInsertId() + if err != nil { + continue + } + + ids = append(ids, id) + } + + return ids, nil +} |
