jet/sqlbuilder/expression_table.go
2019-06-08 16:34:15 +02:00

44 lines
837 B
Go

package sqlbuilder
import "errors"
type ExpressionTable interface {
ReadableTable
Alias() string
}
type expressionTableImpl struct {
readableTableInterfaceImpl
expression Expression
alias string
}
func newExpressionTable(expression Expression, alias string) ExpressionTable {
expTable := &expressionTableImpl{expression: expression, alias: alias}
expTable.readableTableInterfaceImpl.parent = expTable
return expTable
}
func (e *expressionTableImpl) Alias() string {
return e.alias
}
func (e *expressionTableImpl) serialize(statement statementType, out *queryData, options ...serializeOption) error {
if e == nil {
return errors.New("Expression table is nil. ")
}
err := e.expression.serialize(statement, out)
if err != nil {
return err
}
out.writeString("AS")
out.writeString(e.alias)
return nil
}