constraint.DatetimePast

Constraint: DatetimePast

Description

Check that a datetime/date (represented as string or time.Time) is in the past

V8n Tag Abbreviation

dtpast

Fields

Field	Type	Description
ExcTime	bool	when set to true, excludes the time when comparing. Note: This also excludes the effect of any timezone offsets specified in either of the compared values
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

Examples

Programmatic example...

package main

import (
    "fmt"
    "time"

    "github.com/marrow16/valix"
)

func main() {
    validator := &valix.Validator{
        Properties: valix.Properties{
            "foo": {
                Type: valix.JsonDatetime,
                Constraints: valix.Constraints{
                    &valix.DatetimePast{
                        ExcTime: true,
                    },
                },
            },
        },
    }
    obj := "{\"foo\": \"" + time.Now().Format(time.RFC3339) + "\"}"

    ok, violations, _ := validator.ValidateString(obj)
    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)
    }

    obj = "{\"foo\": \"" + time.Now().Add(0-(time.Hour*24)).Format(time.RFC3339) + "\"}"

    ok, violations, _ = validator.ValidateString(obj)
    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"
    "time"

    "github.com/marrow16/valix"
)

type MyStruct struct {
    Foo *time.Time `json:"foo" v8n:"&dtpast{ExcTime: true}"`
}

var validator = valix.MustCompileValidatorFor(MyStruct{}, nil)

func main() {
    obj := "{\"foo\": \"" + time.Now().Format(time.RFC3339) + "\"}"
    ok, violations, _ := validator.ValidateString(obj)
    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)
    }

    obj = "{\"foo\": \"" + time.Now().Add(0-(time.Hour*24)).Format(time.RFC3339) + "\"}"
    ok, violations, _ = validator.ValidateString(obj)
    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