dateparse_tag

README

dateparse_tag

dateparse time by struct tag

intro&简介

WithTagName() // 自定义你想要使用的tag名称，默认为dateFormat
WithDefaultTagValue() // 定义这个tag的默认值，默认为 default
WithDefaultFormat() // 定义时间格式化样式，默认为 2006-01-02 15:04:05
WithEmptyValue() // 定义一个空值返回，当指定结构体的指定字段为空值时，返回你想要的空值，默认为 ""

install&安装

    go get github.com/cowardmrx/dateparse_tag

use&使用

type User struct {
    Name     string `json:"name"`
    BirthDay string `json:"birth_day" format_date:"default"`
}

func TestNewDateParseTag(t *testing.T) {
    u := new(User)
    
    u.Name = "张三"
    u.BirthDay = time.Now().String()
    
    t.Logf("user : %v", u)
    
    dp := NewDateParseTag(WithTagName("format_date"))
    
    dp.Parse(u, u)
    
    t.Logf("user new %v", u)
}

// old user : &{张三 2022-01-12 14:10:17.1867047 +0800 CST m=+0.003444301}
// new user  &{张三 2022-01-12 14:10:17}

Documentation

Index

• Constants
• type DateParseTag
  • func NewDateParseTag(opts ...Options) DateParseTag
• type Options
  • func WithDefaultFormat(defaultFormatLayout string) Options
  • func WithDefaultTagValue(tagVal string) Options
  • func WithEmptyValue(emptyValue string) Options
  • func WithTagName(tagName string) Options

Constants

const (
	DefaultFormatLayout = "2006-01-02 15:04:05"
	DefaultTagName      = "dateFormat"
	DefaultTagValue     = "default"
)

Types

type DateParseTag

type DateParseTag interface {
	Parse(in, out interface{})
}

func NewDateParseTag

func NewDateParseTag(opts ...Options) DateParseTag

type Options

type Options func(dp *dateParseTag)

func WithDefaultFormat

func WithDefaultFormat(defaultFormatLayout string) Options

func WithDefaultTagValue

func WithDefaultTagValue(tagVal string) Options

func WithEmptyValue

func WithEmptyValue(emptyValue string) Options

func WithTagName

func WithTagName(tagName string) Options