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detailed_expression.go
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/
detailed_expression.go
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package gosql
// expression with detail
type detailedExpression struct {
// expression
expression expression
// detail
detail string
// is detail first order
rightAlign bool
}
// SetRightAlign set detail first
func (d *detailedExpression) SetRightAlign(isRight bool) *detailedExpression {
d.rightAlign = isRight
return d
}
// Expression get expression
func (d *detailedExpression) Expression() *expression {
return &d.expression
}
// SetDetail set detail
func (d *detailedExpression) SetDetail(detail string) *detailedExpression {
d.detail = detail
return d
}
// GetDetail get detail
func (d *detailedExpression) GetDetail() string {
return d.detail
}
// ResetDetail reset detail
func (d *detailedExpression) ResetDetail() *detailedExpression {
d.detail = ""
return d
}
// IsEmpty check if empty
func (d *detailedExpression) IsEmpty() bool {
return d == nil || (d.detail == "" && d.expression.Len() == 0)
}
// String render detailed expression
func (d *detailedExpression) String() string {
if d.IsEmpty() || d.expression.Len() == 0 {
return ""
}
detail := d.detail
if d.rightAlign {
if d.detail != "" {
detail = detail + " "
}
return detail + "(" + d.expression.String(", ") + ")"
}
if d.detail != "" {
detail = " " + detail
}
return "(" + d.expression.String(", ") + ")" + detail
}
// NewDetailedExpression init detailed expression
func NewDetailedExpression() *detailedExpression {
return &detailedExpression{}
}