package clause

type Update struct {
	Modifier string
	Table    Table
}

// Name update clause name
func (update Update) Name() string {
	return "UPDATE"
}

// Build build update clause
func (update Update) Build(builder Builder) {
	if update.Modifier != "" {
		builder.WriteString(update.Modifier)
		builder.WriteByte(' ')
	}

	if update.Table.Name == "" {
		builder.WriteQuoted(currentTable)
	} else {

				if set := ConvertToAssignments(db.Statement); len(set) != 0 {
					defer delete(db.Statement.Clauses, "SET")
					db.Statement.AddClause(set)
				} else {
					return
				}
			}

			db.Statement.Build(db.Statement.BuildClauses...)
		}

		checkMissingWhereConditions(db)

		if !db.DryRun && db.Error == nil {
			if ok, mode := hasReturning(db, supportReturning); ok {