jybase/go-xweb/xweb/validation

validation

validation is a form validation for a data validation and error collecting using Go.

Installation and tests

Install:

go get github.com/go-xweb/xweb/validation

Test:

go test github.com/go-xweb/xweb/validation

Example

Direct Use:

import (
    "github.com/go-xweb/xweb/validation"
    "log"
)

type User struct {
    Name string
    Age int
}

func main() {
    u := User{"man", 40}
    valid := validation.Validation{}
    valid.Required(u.Name, "name")
    valid.MaxSize(u.Name, 15, "nameMax")
    valid.Range(u.Age, 0, 140, "age")
    if valid.HasErrors() {
        // validation does not pass
        // print invalid message
        for _, err := range valid.Errors {
            log.Println(err.Key, err.Message)
        }
    }
    // or use like this
    if v := valid.Max(u.Age, 140); !v.Ok {
        log.Println(v.Error.Key, v.Error.Message)
    }
}

Struct Tag Use:

import (
    "github.com/go-xweb/xweb/validation"
)

// validation function follow with "valid" tag
// functions divide with ";"
// parameters in parentheses "()" and divide with ","
// Match function's pattern string must in "//"
type User struct {
    Id   int
    Name string `valid:"Required;Match(/^(test)?\\w*@;com$/)"`
    Age  int    `valid:"Required;Range(1, 140)"`
}
type Profile struct {
    Id   int
    Email string `valid:"Required;Match(/^\\w+@coscms\\.com$/)"`
    Addr  string `valid:"Required"`
}
type NotValid struct {
    A string
    B string
}
type Group struct {
    Id   int
    User
    *Profile
    NotValid `valid:"-"` //valid标签设为“-”，意味着跳过此项不查询其成员
}

func main() {
    valid := Validation{}
    u := User{Name: "test", Age: 40}
    b, err := valid.Valid(u) //检查所有字段
    //b, err := valid.Valid(u, "Name", "Age") //检查指定字段：Name和Age
    if err != nil {
        // handle error
    }
    if !b {
        // validation does not pass
        // blabla...
    }

    valid.Clear()

    u := Group{
        User:           User{Name: "test", Age: 40},
        Profile:        &Profile{Email:"test@coscms.com",Addr:"address"},
        NotValid:       NotValid{},
    }
    b, err := valid.Valid(u) //检查所有字段
    //b, err := valid.Valid(u, "User.Name", "Profile.Email") //检查指定字段
    if err != nil {
        // handle error
    }
    if !b {
        // validation does not pass
        // blabla...
    }
}

Struct Tag Functions:

-
Required
Min(min int)
Max(max int)
Range(min, max int)
MinSize(min int)
MaxSize(max int)
Length(length int)
Alpha
Numeric
AlphaNumeric
Match(pattern string)
AlphaDash
Email
IP
Base64
Mobile
Tel
Phone
ZipCode

LICENSE

BSD License http://creativecommons.org/licenses/BSD/