forgejo/vendor/github.com/go-xorm/builder/builder_update.go

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2016-11-03 22:16:01 +00:00
package builder
import (
"errors"
"fmt"
)
func (b *Builder) updateWriteTo(w Writer) error {
if len(b.tableName) <= 0 {
return errors.New("no table indicated")
}
if len(b.updates) <= 0 {
return errors.New("no column to be update")
}
if _, err := fmt.Fprintf(w, "UPDATE %s SET ", b.tableName); err != nil {
return err
}
for i, s := range b.updates {
if err := s.opWriteTo(",", w); err != nil {
return err
}
if i != len(b.updates)-1 {
if _, err := fmt.Fprint(w, ","); err != nil {
return err
}
}
}
if _, err := fmt.Fprint(w, " WHERE "); err != nil {
return err
}
return b.cond.WriteTo(w)
}