/
comparisons.go
741 lines (649 loc) · 16.8 KB
/
comparisons.go
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package checker
import (
"fmt"
"time"
)
// <=======================Comparison rule about string ===============>
type eqRuleString struct {
baseRule
equivalent string
}
func (r *eqRuleString) Prompt(prompt string) Rule {
r.prompt = prompt
return r
}
func (r eqRuleString) Check(param interface{}) (bool, string) {
exprValueStr, isValid, errMsg := fetchFieldStr(param, &r)
if !isValid {
return false, errMsg
}
if exprValueStr != r.equivalent {
return false,
fmt.Sprintf("[%s]:%s should be %s,actual is %s",
r.name, r.getCompleteFieldExpr(), r.equivalent, exprValueStr)
}
return true, ""
}
// EqStr is the validation function for validating if the field's value is equal to given string.
func EqStr(filedExpr string, equivalent string) *eqRuleString {
return &eqRuleString{
baseRule{
fieldExpr: filedExpr,
name: "EqStr",
},
equivalent,
}
}
type neRuleString struct {
baseRule
inequivalent string
}
func (r *neRuleString) Prompt(prompt string) Rule {
r.prompt = prompt
return r
}
func (r neRuleString) Check(param interface{}) (bool, string) {
exprValueStr, isValid, errMsg := fetchFieldStr(param, &r)
if !isValid {
return false, errMsg
}
if exprValueStr == r.inequivalent {
return false,
fmt.Sprintf("[%s]:%s should not be %s,actual is %s",
r.name, r.getCompleteFieldExpr(), r.inequivalent, exprValueStr)
}
return true, ""
}
// NeStr is the validation function for validating if the field's value is not equal to given string.
func NeStr(filedExpr string, inequivalent string) *neRuleString {
return &neRuleString{
baseRule{
fieldExpr: filedExpr,
name: "NeStr",
},
inequivalent,
}
}
// <=======================Comparison rule about int ===============>
type eqRuleInt struct {
baseRule
equivalent int
}
func (r *eqRuleInt) Prompt(prompt string) Rule {
r.prompt = prompt
return r
}
func (r eqRuleInt) Check(param interface{}) (bool, string) {
exprValueInt, isValid, errMsg := fetchFieldInt(param, &r)
if !isValid {
return false, errMsg
}
if exprValueInt != r.equivalent {
return false,
fmt.Sprintf("[%s]:%s should be %d,actual is %d",
r.name, r.getCompleteFieldExpr(), r.equivalent, exprValueInt)
}
return true, ""
}
// EqInt is the validation function for validating if the field's value is equal to given int.
func EqInt(filedExpr string, equivalent int) *eqRuleInt {
return &eqRuleInt{
baseRule{
fieldExpr: filedExpr,
name: "EqInt",
},
equivalent,
}
}
type neRuleInt struct {
baseRule
inequivalent int
}
func (r *neRuleInt) Prompt(prompt string) Rule {
r.prompt = prompt
return r
}
func (r neRuleInt) Check(param interface{}) (bool, string) {
exprValueInt, isValid, errMsg := fetchFieldInt(param, &r)
if !isValid {
return false, errMsg
}
if exprValueInt == r.inequivalent {
return false,
fmt.Sprintf("[%s]:%s should not be %d,actual is %d",
r.name, r.getCompleteFieldExpr(), r.inequivalent, exprValueInt)
}
return true, ""
}
// NeInt is the validation function for validating if the field's value is not equal to given int.
func NeInt(filedExpr string, inequivalent int) *neRuleInt {
return &neRuleInt{
baseRule{
fieldExpr: filedExpr,
name: "NeInt",
},
inequivalent,
}
}
type rangeRuleInt struct {
baseRule
ge int
le int
}
func (r *rangeRuleInt) Prompt(prompt string) Rule {
r.prompt = prompt
return r
}
func (r rangeRuleInt) Check(param interface{}) (bool, string) {
exprValueInt, isValid, errMsg := fetchFieldInt(param, &r)
if !isValid {
return false, errMsg
}
if exprValueInt > r.le || exprValueInt < r.ge {
return false,
fmt.Sprintf("[%s]:%s should be between %d and %d,actual is %d",
r.name, r.getCompleteFieldExpr(), r.ge, r.le, exprValueInt)
}
return true, ""
}
// RangeInt is the validation function for validating if the field's value is in given range.
func RangeInt(filedExpr string, ge int, le int) *rangeRuleInt {
return &rangeRuleInt{
baseRule{
fieldExpr: filedExpr,
name: "RangeInt",
},
ge,
le,
}
}
// <=======================Comparison rule about uint ===============>
type eqRuleUint struct {
baseRule
equivalent uint
}
func (r *eqRuleUint) Prompt(prompt string) Rule {
r.prompt = prompt
return r
}
func (r eqRuleUint) Check(param interface{}) (bool, string) {
exprValueUint, isValid, errMsg := fetchFieldUint(param, &r)
if !isValid {
return false, errMsg
}
if exprValueUint != r.equivalent {
return false,
fmt.Sprintf("[%s]:%s should be %d,actual is %d",
r.name, r.getCompleteFieldExpr(), r.equivalent, exprValueUint)
}
return true, ""
}
// EqUint is the validation function for validating if the field's value is equal to given uint.
func EqUint(filedExpr string, equivalent uint) *eqRuleUint {
return &eqRuleUint{
baseRule{
fieldExpr: filedExpr,
name: "EqUint",
},
equivalent,
}
}
type neRuleUint struct {
baseRule
inequivalent uint
}
func (r *neRuleUint) Prompt(prompt string) Rule {
r.prompt = prompt
return r
}
func (r neRuleUint) Check(param interface{}) (bool, string) {
exprValueUint, isValid, errMsg := fetchFieldUint(param, &r)
if !isValid {
return false, errMsg
}
if exprValueUint == r.inequivalent {
return false,
fmt.Sprintf("[%s]:%s should not be %d,actual is %d",
r.name, r.getCompleteFieldExpr(), r.inequivalent, exprValueUint)
}
return true, ""
}
// NeUint is the validation function for validating if the field's value is not equal to given uint.
func NeUint(filedExpr string, inequivalent uint) *neRuleUint {
return &neRuleUint{
baseRule{
fieldExpr: filedExpr,
name: "NeUint",
},
inequivalent,
}
}
type rangeRuleUint struct {
baseRule
ge uint
le uint
}
func (r *rangeRuleUint) Prompt(prompt string) Rule {
r.prompt = prompt
return r
}
func (r rangeRuleUint) Check(param interface{}) (bool, string) {
exprValueUint, isValid, errMsg := fetchFieldUint(param, &r)
if !isValid {
return false, errMsg
}
if exprValueUint > r.le || exprValueUint < r.ge {
return false,
fmt.Sprintf("[%s]:%s should be betweeen %d and %d ,actual is %d",
r.name, r.getCompleteFieldExpr(), r.ge, r.le, exprValueUint)
}
return true, ""
}
// RangeUint is the validation function for validating if the field's value is in given range.
func RangeUint(filedExpr string, ge uint, le uint) *rangeRuleUint {
return &rangeRuleUint{
baseRule{
fieldExpr: filedExpr,
name: "RangeUint",
},
ge,
le,
}
}
// <=======================Comparison rule about float64 ===============>
type eqRuleFloat struct {
baseRule
equivalent float64
}
func (r *eqRuleFloat) Prompt(prompt string) Rule {
r.prompt = prompt
return r
}
func (r eqRuleFloat) Check(param interface{}) (bool, string) {
exprValueFloat, isValid, errMsg := fetchFieldFloat(param, &r)
if !isValid {
return false, errMsg
}
if exprValueFloat != r.equivalent {
return false,
fmt.Sprintf("[%s]:%s should be %f,actual is %f",
r.name, r.getCompleteFieldExpr(), r.equivalent, exprValueFloat)
}
return true, ""
}
// EqFloat is the validation function for validating if the field's value is equal to given float.
func EqFloat(filedExpr string, equivalent float64) *eqRuleFloat {
return &eqRuleFloat{
baseRule{
fieldExpr: filedExpr,
name: "EqFloat",
},
equivalent,
}
}
type neRuleFloat struct {
baseRule
inequivalent float64
}
func (r *neRuleFloat) Prompt(prompt string) Rule {
r.prompt = prompt
return r
}
func (r neRuleFloat) Check(param interface{}) (bool, string) {
exprValueFloat, isValid, errMsg := fetchFieldFloat(param, &r)
if !isValid {
return false, errMsg
}
if exprValueFloat == r.inequivalent {
return false,
fmt.Sprintf("[%s]:%s should not be %f,actual is %f",
r.name, r.getCompleteFieldExpr(), r.inequivalent, exprValueFloat)
}
return true, ""
}
// NeFloat is the validation function for validating if the field's value is not equal to given float.
func NeFloat(filedExpr string, inequivalent float64) *neRuleFloat {
return &neRuleFloat{
baseRule{
fieldExpr: filedExpr,
name: "NeFloat",
},
inequivalent,
}
}
type rangeRuleFloat struct {
baseRule
le float64
ge float64
}
func (r *rangeRuleFloat) Prompt(prompt string) Rule {
r.prompt = prompt
return r
}
func (r rangeRuleFloat) Check(param interface{}) (bool, string) {
exprValueFloat, isValid, errMsg := fetchFieldFloat(param, &r)
if !isValid {
return false, errMsg
}
if exprValueFloat < r.ge || exprValueFloat > r.le {
return false,
fmt.Sprintf("[%s]:%s should be between %f and %f,actual is %f",
r.name, r.getCompleteFieldExpr(), r.le, r.ge, exprValueFloat)
}
return true, ""
}
// RangeFloat is the validation function for validating if the field's value is in given range.
func RangeFloat(filedExpr string, ge float64, le float64) *rangeRuleFloat {
return &rangeRuleFloat{
baseRule{
fieldExpr: filedExpr,
name: "RangeFloat",
},
le,
ge,
}
}
// <=======================Comparison rule about time.Time ===============>
type eqRuleTime struct {
baseRule
equivalent time.Time
}
func (r *eqRuleTime) Prompt(prompt string) Rule {
r.prompt = prompt
return r
}
func (r eqRuleTime) Check(param interface{}) (bool, string) {
tsVal, isValid, errMsg := fetchFieldTime(param, &r)
if !isValid {
return false, errMsg
}
if !tsVal.Equal(r.equivalent) {
return false,
fmt.Sprintf("[%s]:%s should be %v,actual is %v",
r.name, r.getCompleteFieldExpr(), r.equivalent, tsVal)
}
return true, ""
}
// EqTime is the validation function for validating if the field's value is equal to given timestamp.
func EqTime(filedExpr string, equivalent time.Time) *eqRuleTime {
return &eqRuleTime{
baseRule{
fieldExpr: filedExpr,
name: "EqTime",
},
equivalent,
}
}
type neRuleTime struct {
baseRule
inequivalent time.Time
}
func (r *neRuleTime) Prompt(prompt string) Rule {
r.prompt = prompt
return r
}
func (r neRuleTime) Check(param interface{}) (bool, string) {
tsVal, isValid, errMsg := fetchFieldTime(param, &r)
if !isValid {
return false, errMsg
}
if tsVal.Equal(r.inequivalent) {
return false,
fmt.Sprintf("[%s]:%s should not be %v,actual is %v",
r.name, r.getCompleteFieldExpr(), r.inequivalent, tsVal)
}
return true, ""
}
// NeTime is the validation function for validating if the field's value is not equal to given timestamp.
func NeTime(filedExpr string, inequivalent time.Time) *neRuleTime {
return &neRuleTime{
baseRule{
fieldExpr: filedExpr,
name: "NeTime",
},
inequivalent,
}
}
type eqRuleTimeStr struct {
baseRule
layout string
equivalent time.Time
}
func (r *eqRuleTimeStr) Prompt(prompt string) Rule {
r.prompt = prompt
return r
}
func (r eqRuleTimeStr) Check(param interface{}) (bool, string) {
exprValueStr, isValid, errMsg := fetchFieldStr(param, &r)
if !isValid {
return false, errMsg
}
exprValTime, err := time.Parse(r.layout, exprValueStr)
if err != nil {
return false,
fmt.Sprintf("[%s]:%s should be format %s,actual is %s",
r.name, r.getCompleteFieldExpr(), r.layout, exprValueStr)
}
if !exprValTime.Equal(r.equivalent) {
return false,
fmt.Sprintf("[%s]:%s should be %v,actual is %v",
r.name, r.getCompleteFieldExpr(), r.equivalent.Format(r.layout), exprValueStr)
}
return true, ""
}
// EqTimeStr is the validation function for validating if the field's value string and is equal to given timestamp.
func EqTimeStr(filedExpr string, layout string, equivalent time.Time) *eqRuleTimeStr {
return &eqRuleTimeStr{
baseRule{
fieldExpr: filedExpr,
name: "EqTimeStr",
},
layout,
equivalent,
}
}
type neRuleTimeStr struct {
baseRule
layout string
inequivalent time.Time
}
func (r *neRuleTimeStr) Prompt(prompt string) Rule {
r.prompt = prompt
return r
}
func (r neRuleTimeStr) Check(param interface{}) (bool, string) {
exprValueStr, isValid, errMsg := fetchFieldStr(param, &r)
if !isValid {
return false, errMsg
}
exprValTime, err := time.Parse(r.layout, exprValueStr)
if err != nil {
return false,
fmt.Sprintf("[%s]:%s should be format %s,actual is %s",
r.name, r.getCompleteFieldExpr(), r.layout, exprValueStr)
}
if exprValTime.Equal(r.inequivalent) {
return false,
fmt.Sprintf("[%s]:%s should not be %v,actual is %v",
r.name, r.getCompleteFieldExpr(), r.inequivalent.Format(r.layout), exprValueStr)
}
return true, ""
}
// NeTimeStr is the validation function for validating if the field's value string and is not equal to given timestamp.
func NeTimeStr(filedExpr string, layout string, inequivalent time.Time) *neRuleTimeStr {
return &neRuleTimeStr{
baseRule{
fieldExpr: filedExpr,
name: "NeTimeStr",
},
layout,
inequivalent,
}
}
type rangeRuleTime struct {
baseRule
le time.Time
ge time.Time
}
func (r *rangeRuleTime) Prompt(prompt string) Rule {
r.prompt = prompt
return r
}
func (r rangeRuleTime) Check(param interface{}) (bool, string) {
tsVal, isValid, errMsg := fetchFieldTime(param, &r)
if !isValid {
return false, errMsg
}
if tsVal.Before(r.ge) || tsVal.After(r.le) {
return false,
fmt.Sprintf("[%s]:%s should be between %v and %v,actual is %v",
r.name, r.getCompleteFieldExpr(), r.le, r.ge, tsVal)
}
return true, ""
}
// RangeTime is the validation function for validating if the field's value is in given range.
func RangeTime(filedExpr string, ge time.Time, le time.Time) *rangeRuleTime {
return &rangeRuleTime{
baseRule{
fieldExpr: filedExpr,
name: "RangeTime",
},
le,
ge,
}
}
type rangeRuleTimeStr struct {
baseRule
layout string
le time.Time
ge time.Time
}
func (r *rangeRuleTimeStr) Prompt(prompt string) Rule {
r.prompt = prompt
return r
}
func (r rangeRuleTimeStr) Check(param interface{}) (bool, string) {
exprValueStr, isValid, errMsg := fetchFieldStr(param, &r)
if !isValid {
return false, errMsg
}
exprValTime, err := time.Parse(r.layout, exprValueStr)
if err != nil {
return false,
fmt.Sprintf("[%s]:%s should be format %s,actual is %s",
r.name, r.getCompleteFieldExpr(), r.layout, exprValueStr)
}
if exprValTime.Before(r.ge) || exprValTime.After(r.le) {
return false,
fmt.Sprintf("[%s]:%s should be between %v and %v,actual is %v",
r.name, r.getCompleteFieldExpr(), r.le.Format(r.layout), r.ge.Format(r.layout), exprValueStr)
}
return true, ""
}
// RangeTimeStr is the validation function for validating if the field's value is in given range.
func RangeTimeStr(filedExpr string, layout string, ge time.Time, le time.Time) *rangeRuleTimeStr {
return &rangeRuleTimeStr{
baseRule{
fieldExpr: filedExpr,
name: "RangeTimeStr",
},
layout,
le,
ge,
}
}
// <=======================Comparison rule about Comparable ===============>
type eqRuleComp struct {
baseRule
equivalent Comparable
}
func (r *eqRuleComp) Prompt(prompt string) Rule {
r.prompt = prompt
return r
}
func (r eqRuleComp) Check(param interface{}) (bool, string) {
exprValueComp, isValid, errMsg := fetchFieldComparable(param, &r)
if !isValid {
return false, errMsg
}
if !exprValueComp.EqualTo(r.equivalent) {
return false,
fmt.Sprintf("[%s]:%s should be %v,actual is %v",
r.name, r.getCompleteFieldExpr(), r.equivalent, exprValueComp)
}
return true, ""
}
// EqComp checks if the field is Comparable
// and is equal to given Comparable variable
func EqComp(filedExpr string, equivalent Comparable) *eqRuleComp {
return &eqRuleComp{
baseRule{
fieldExpr: filedExpr,
name: "EqComp",
},
equivalent,
}
}
type neRuleComp struct {
baseRule
inequivalent Comparable
}
func (r *neRuleComp) Prompt(prompt string) Rule {
r.prompt = prompt
return r
}
func (r neRuleComp) Check(param interface{}) (bool, string) {
exprValueComp, isValid, errMsg := fetchFieldComparable(param, &r)
if !isValid {
return false, errMsg
}
if exprValueComp.EqualTo(r.inequivalent) {
return false,
fmt.Sprintf("[%s]:%s should not be equal to %v,actual is %v",
r.name, r.getCompleteFieldExpr(), r.inequivalent, exprValueComp)
}
return true, ""
}
// NeComp checks if the field is Comparable
// and is not equal to given Comparable variable
func NeComp(filedExpr string, inequivalent Comparable) *neRuleComp {
return &neRuleComp{
baseRule{
fieldExpr: filedExpr,
name: "NeComp",
},
inequivalent,
}
}
type rangeRuleComp struct {
baseRule
le Comparable
ge Comparable
}
func (r *rangeRuleComp) Prompt(prompt string) Rule {
r.prompt = prompt
return r
}
func (r rangeRuleComp) Check(param interface{}) (bool, string) {
exprValueComp, isValid, errMsg := fetchFieldComparable(param, &r)
if !isValid {
return false, errMsg
}
if exprValueComp.LessThan(r.ge) || !exprValueComp.LessThan(r.le) {
return false, fmt.Sprintf("[%s]:%s should be between %v and %v,actual is %v",
r.name, r.getCompleteFieldExpr(), r.ge, r.le, exprValueComp)
}
return true, ""
}
// RangeComp checks if the value
// is between [ge,le]
func RangeComp(filedExpr string, ge Comparable, le Comparable) *rangeRuleComp {
return &rangeRuleComp{
baseRule{
fieldExpr: filedExpr,
name: "RangeComp",
},
le,
ge,
}
}