oppi.li
an ORM-free SQL experience
introduce insert statement
Signed-off-by: oppiliappan <me@oppi.li>
+106
+106
query.go
+106
query.go
···
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}
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return sql, args
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}
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+
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+
type insert struct {
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into string
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or InsertOr
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values map[string]any
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}
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+
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type InsertOr int
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+
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const (
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None InsertOr = iota
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Abort
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Fail
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Ignore
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Replace
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Rollback
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)
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func (i InsertOr) String() string {
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switch i {
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case Abort:
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return "ABORT"
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case Fail:
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return "FAIL"
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case Ignore:
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return "IGNORE"
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case Replace:
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return "REPLACE"
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case Rollback:
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return "ROLLBACK"
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default:
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return ""
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}
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}
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func Insert() insert {
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return insert{
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values: make(map[string]any),
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}
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}
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type InsertOpt func(s *insert)
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func (s insert) Into(table string) insert {
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s.into = table
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return s
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}
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func (s insert) Or(option InsertOr) insert {
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s.or = option
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return s
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}
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func (s insert) Value(column string, arg any) insert {
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s.values[column] = arg
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return s
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}
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func (s insert) Build() (string, []any, error) {
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var sql strings.Builder
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var args []any
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sql.WriteString("INSERT ")
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if s.or != None {
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sql.WriteString("OR ")
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sql.WriteString(s.or.String())
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}
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if s.into == "" {
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return "", nil, fmt.Errorf("INTO clause is required")
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}
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sql.WriteString(" INTO ")
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sql.WriteString(s.into)
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if len(s.values) == 0 {
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return "", nil, fmt.Errorf("no values supplied")
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}
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sql.WriteString(" (")
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first := true
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for col, val := range s.values {
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if !first {
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sql.WriteString(",")
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first = !first
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}
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sql.WriteString(col)
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args = append(args, val)
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}
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sql.WriteString(") VALUES (")
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sql.WriteString(strings.TrimSuffix(strings.Repeat("?,", len(s.values)), ","))
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sql.WriteString(")")
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return sql.String(), args, nil
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}
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func (s insert) MustBuild() (string, []any) {
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sql, args, err := s.Build()
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if err != nil {
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panic(err)
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}
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return sql, args
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}