constraint.StringValidISODate

Constraint: StringValidISODate

Description

Check that a string value is a valid ISO8601 Date format (excluding time)

Note: By default, this constraint is non-strict - if the value being checked is not a string, this constraint does not fail (unless the Strict field is set)

V8n Tag Abbreviation

strisod

Fields

Field	Type	Description
Message	string	the violation message to be used if the constraint fails. If empty, the default message is used
Stop	bool	when set to true, Stop prevents further validation checks on the property if this constraint fails
Strict	bool	when set to true, fails if the value being checked is not a correct type

Examples

Programmatic example...

package main

import (
    "fmt"

    "github.com/marrow16/valix"
)

func main() {
    validator := &valix.Validator{
        UseNumber: true,
        Properties: valix.Properties{
            "foo": {
                Type: valix.JsonString,
                Constraints: valix.Constraints{
                    &valix.StringValidISODate{},
                },
            },
        },
    }

    ok, violations, _ := validator.ValidateString(`{"foo": "not a valid date"}`)
    fmt.Printf("Passed? %v\n", ok)
    for i, v := range violations {
        fmt.Printf("Violation[%d] Message: %s, Property: %s, Path: %s\n", i+1, v.Message, v.Property, v.Path)
    }

    ok, violations, _ = validator.ValidateString(`{"foo": "2022-02-35"}`)
    fmt.Printf("Passed? %v\n", ok)
    for i, v := range violations {
        fmt.Printf("Violation[%d] Message: %s, Property: %s, Path: %s\n", i+1, v.Message, v.Property, v.Path)
    }

    ok, violations, _ = validator.ValidateString(`{"foo": "2022-02-28"}`)
    fmt.Printf("Passed? %v\n", ok)
    for i, v := range violations {
        fmt.Printf("Violation[%d] Message: %s, Property: %s, Path: %s\n", i+1, v.Message, v.Property, v.Path)
    }
}

try on go-playground

Struct v8n tag example...

package main

import (
    "fmt"

    "github.com/marrow16/valix"
)

type MyStruct struct {
    Foo string `json:"foo" v8n:"&strisod"`
}

var validator = valix.MustCompileValidatorFor(MyStruct{})

func main() {
    my := &MyStruct{}

    ok, violations, _ := validator.ValidateStringInto(`{"foo": "not a valid date"}`, my)
    fmt.Printf("Passed? %v\n", ok)
    for i, v := range violations {
        fmt.Printf("Violation[%d] Message: %s, Property: %s, Path: %s\n", i+1, v.Message, v.Property, v.Path)
    }

    ok, violations, _ = validator.ValidateStringInto(`{"foo": "2022-02-35"}`, my)
    fmt.Printf("Passed? %v\n", ok)
    for i, v := range violations {
        fmt.Printf("Violation[%d] Message: %s, Property: %s, Path: %s\n", i+1, v.Message, v.Property, v.Path)
    }

    ok, violations, _ = validator.ValidateStringInto(`{"foo": "2022-02-28"}`, my)
    fmt.Printf("Passed? %v\n", ok)
    for i, v := range violations {
        fmt.Printf("Violation[%d] Message: %s, Property: %s, Path: %s\n", i+1, v.Message, v.Property, v.Path)
    }
}

try on go-playground