go-blog/models/sql.go

51 lines
998 B
Go

package models
import (
"database/sql/driver"
"time"
)
//AdminCriteria specifies which type of users should be considered
type AdminCriteria int
const (
//OnlyAdmins conider only published
OnlyAdmins = iota
//NoAdmins conider no admins
NoAdmins
//AllUser conider all users
AllUser
)
// PublishedCriteria specifies which entries should be shown
type PublishedCriteria int
const (
// OnlyPublished conider only published
OnlyPublished = iota
// NotPublished conider only not published
NotPublished
// All conider both published and not published
All
)
//NullTime represents a time which may not valid if time is null
type NullTime struct {
Time time.Time
Valid bool
}
// Scan implements the Scanner interface.
func (nt *NullTime) Scan(value interface{}) error {
nt.Time, nt.Valid = value.(time.Time)
return nil
}
// Value implements the driver Valuer interface.
func (nt NullTime) Value() (driver.Value, error) {
if !nt.Valid {
return nil, nil
}
return nt.Time, nil
}