golib/v3/infra/om/querys.go

package om

import (
	"strings"
)

type Condition struct {
	FieldName string
	Value     any
	Opt       string
}

func NewCondition(fieldName string, value any, args ...string) Condition {
	opt := Equ
	if len(args) > 0 {
		opt, _ = GetValidOpt(args[0], Equ)
	}
	return Condition{FieldName: fieldName, Value: value, Opt: opt}
}

const (
	Equ   = "="
	Like  = "LIKE"
	Start = "START"
	End   = "END"
	Le    = "<"
	Ge    = ">"
	UnEqu = "<>"
)

const (
	AND = "AND"
	OR  = "OR"
)

const (
	ASC  = "ASC"
	DESC = "DESC"
)

func GetValidOpt(s string, ps ...string) (string, bool) {
	ts := strings.ToUpper(strings.TrimSpace(s))
	switch ts {
	case Equ, Like, Start, End, Le, Ge, OR, UnEqu:
		return ts, true
	}
	if len(ps) > 0 {
		return ps[0], false
	}
	return "", false
}