/
utils.go
201 lines (179 loc) · 5.18 KB
/
utils.go
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package utils
import (
"fmt"
"reflect"
"strings"
"time"
"cloud.google.com/go/spanner"
)
func GetTableName(model interface{}) string {
results := reflect.Indirect(reflect.ValueOf(model))
if reflect.TypeOf(model).Kind() == reflect.String {
return model.(string)
}
if kind := results.Kind(); kind == reflect.Slice {
resultType := results.Type().Elem()
if resultType.Kind() == reflect.Ptr {
resultType = resultType.Elem()
elem := reflect.New(resultType).Interface()
return reflect.TypeOf(elem).Elem().Name()
} else {
return resultType.Name()
}
}
if reflect.TypeOf(model).Kind() == reflect.Ptr {
modelType := reflect.TypeOf(model)
modelValue := reflect.New(modelType.Elem()).Interface()
return reflect.TypeOf(modelValue).Elem().Name()
}
return results.Type().Name()
}
func GetDeleteColumnName(model interface{}) string {
results := reflect.Indirect(reflect.ValueOf(model))
if kind := results.Kind(); kind == reflect.Slice {
resultType := results.Type().Elem()
if resultType.Kind() == reflect.Ptr {
resultType = resultType.Elem()
elem := reflect.New(resultType).Interface()
e := reflect.Indirect(reflect.ValueOf(elem))
for i := 0; i < e.NumField(); i++ {
tag, varName, _, _ := ReflectValues(e, i)
if tag.Get(SSORM_TAG_KEY) == SSORM_TAG_DELETE_TIME {
return varName
}
}
}
return ""
}
if reflect.TypeOf(model).Kind() == reflect.Ptr {
modelType := reflect.TypeOf(model)
modelValue := reflect.New(modelType.Elem()).Interface()
e := reflect.Indirect(reflect.ValueOf(modelValue))
for i := 0; i < e.NumField(); i++ {
tag, varName, _, _ := ReflectValues(e, i)
if tag.Get(SSORM_TAG_KEY) == SSORM_TAG_DELETE_TIME {
return varName
}
}
}
if reflect.TypeOf(model).Kind() == reflect.Struct {
e := reflect.Indirect(reflect.ValueOf(model))
for i := 0; i < e.NumField(); i++ {
tag, varName, _, _ := ReflectValues(e, i)
if tag.Get(SSORM_TAG_KEY) == SSORM_TAG_DELETE_TIME {
return varName
}
}
}
return ""
}
func ArrayContains(arr []string, str string) bool {
for _, v := range arr {
if v == str {
return true
}
}
return false
}
func ReflectValues(reflectValue reflect.Value, i int) (reflect.StructTag, string, interface{}, reflect.Type) {
value := reflect.TypeOf(reflectValue.Interface())
tag := value.Field(i).Tag
varName := tag.Get(SPANER_KEY)
if varName == "" {
varName = reflectValue.Type().Field(i).Name
}
varType := reflectValue.Type().Field(i).Type
varValue := reflectValue.Field(i).Interface()
return tag, varName, varValue, varType
}
func GetTimestampStr(value interface{}) string {
timestampStr := "NULL"
switch v := value.(type) {
case time.Time:
if !v.IsZero() {
timestampStr = fmt.Sprintf("TIMESTAMP_MILLIS(%d)", v.UnixNano()/int64(time.Millisecond))
}
case spanner.NullTime:
if !v.IsNull() {
timestampStr = fmt.Sprintf("TIMESTAMP_MILLIS(%d)", v.Time.UnixNano()/int64(time.Millisecond))
}
}
return timestampStr
}
func IsTime(value interface{}) bool {
switch value.(type) {
case time.Time:
return true
case spanner.NullTime:
return true
}
return false
}
func IsNullable(value interface{}) bool {
switch value.(type) {
case spanner.NullInt64, spanner.NullFloat64, spanner.NullString, spanner.NullDate, spanner.NullTime, spanner.NullRow,
*spanner.NullInt64, *spanner.NullFloat64, *spanner.NullString, *spanner.NullDate, *spanner.NullTime, *spanner.NullRow:
return true
}
return false
}
func IsValid(value interface{}) bool {
if value == nil {
return false
}
switch value.(type) {
case spanner.NullInt64:
return value.(spanner.NullInt64).Valid
case *spanner.NullInt64:
return value.(*spanner.NullInt64).Valid
case spanner.NullFloat64:
return value.(spanner.NullFloat64).Valid
case *spanner.NullFloat64:
return value.(*spanner.NullFloat64).Valid
case spanner.NullString:
return value.(spanner.NullString).Valid
case *spanner.NullString:
return value.(*spanner.NullString).Valid
case spanner.NullDate:
return value.(spanner.NullDate).Valid
case *spanner.NullDate:
return value.(*spanner.NullDate).Valid
case spanner.NullTime:
return value.(spanner.NullTime).Valid
case *spanner.NullTime:
return value.(*spanner.NullTime).Valid
case spanner.NullRow:
return value.(spanner.NullRow).Valid
case *spanner.NullRow:
return value.(*spanner.NullRow).Valid
}
return false
}
func GetArrayStr(value interface{}, valType reflect.Type) string {
var res string
var stringVal []string
var valFormat string
switch valType.String() {
case "[]string", "[]*string", "[]spanner.NullString", "[]*spanner.NullString", "[]civil.Date", "[]*civil.Date", "[]spanner.NullDate", "[]*spanner.NullDate":
valFormat = `"%v"`
default:
valFormat = "%v"
}
val := reflect.ValueOf(value)
for i := 0; i < val.Len(); i++ {
stringVal = append(stringVal, fmt.Sprintf(valFormat, reflect.Indirect(val.Index(i)).Interface()))
}
elms := strings.Join(stringVal, ",")
res = fmt.Sprintf("[%v]", elms)
return res
}
func IsTypeString(valType reflect.Type) bool {
if valType.Kind() == reflect.String {
return true
}
switch valType.String() {
case "spanner.NullString", "*spanner.NullString", "civil.Date", "spanner.NullDate", "*civil.Date", "*spanner.NullDate":
return true
}
return false
}