fix: missing the relations for the main model while using on other model.

[thienhung1989]

Fix the missing relations of the main model while containing the child model trying mapping to parent.

• Do only one thing
• Non breaking API changes
• Tested

What did this pull request do?

AdminUser -> TwoFaTokens -> AdminUser
AdminUser -> TwoFaDevices -> AdminUser
AdminUser -> LoginHistory -> AdminUser
AdminUser -> Roles -> Permissions

		uQ := s.app.Query.AdminUser
		uR, err = uQ.
			Preload(
				uQ.PermissionsJoin,
				uQ.Roles.Permissions,  // This fix allow calling like this.
			).
			Where(uQ.Email.Eq(email)).
			First()

User Case Description

There is missing the relations AdminUser -> Roles -> Permissions. Because, The relation: TwoFaTokens/TwoFaDevices/LoginHistory calling to AdminUser and set relations of AdminUser -> Role with is empty relations.

I'm tried with the design:

// BaseUser struct
// Define common fields for both Seeker, Giver and AdminUser
type BaseUser struct {
	ID                 uint64     `gorm:"primaryKey" json:"id"`
	Email              string     `gorm:"uniqueIndex" json:"email"`
	Password           string     `json:"-"`
	FirstName          string     `json:"firstName"`
	LastName           string     `json:"lastName"`
	PasswordResetToken *string    `json:"-"`
	ResetTokenExpire   *time.Time `json:"-"`
}

type AdminUser struct {
	BaseUser
	TwoFaTokens  *[]AdminUserTwoFaToken   `json:"-" gorm:"constraint:OnDelete:CASCADE;"`
	TwoFaDevices *[]AdminUserTwoFaDevice  `json:"-" gorm:"constraint:OnDelete:CASCADE;"`
	LoginHistory *[]AdminUserLoginHistory `json:"-" gorm:"constraint:OnDelete:CASCADE;"`

	Permissions     *[]AdminPermission     `json:"-" gorm:"many2many:AdminUserPermission;constraint:OnDelete:CASCADE;"`
	Roles           *[]AdminRole           `json:"-" gorm:"many2many:AdminUserRole;constraint:OnDelete:CASCADE;"`
}


type AdminRole struct {
	ID              uint64                 `json:"id" gorm:"primaryKey;autoIncrement"`
	Name            string                 `json:"name"`
	Permissions     *[]AdminPermission     `json:"permissions" gorm:"many2many:AdminRolePermission;constraint:OnDelete:CASCADE;"`
}

type AdminPermission struct {
	Key string `gorm:"primarykey"`
}

type AdminUserLoginHistory struct {
	ID         uint64  `json:"id" gorm:"primaryKey"`
	DeviceName *string `json:"deviceName"`
	DeviceIp   *string `json:"deviceIp"`
	Status     int8    `json:"status"`
	AdminUserID uint64     `json:"adminUserId" gorm:"index"`
	AdminUser   *AdminUser `json:"-" gorm:"foreignKey:AdminUserID;constraint:OnDelete:CASCADE"`
}

type AdminUserSocialAccount struct {
	ID           uint64     `json:"id" gorm:"primaryKey"`
	Provider     string     `json:"provider"`
	ProviderID   string     `json:"providerId"`
	AccessToken  *string    `json:"accessToken"`
	RefreshToken *string    `json:"refreshToken"`
	AdminUserID uint64     `json:"adminUserId" gorm:"index"`
	AdminUser   *AdminUser `json:"-" gorm:"foreignKey:AdminUserID;constraint:OnDelete:CASCADE"`
}

type AdminUserTwoFaToken struct {
	ID          uint64  `json:"id" gorm:"primaryKey"`
	OtpType     uint    `json:"otpType"`
	Secret      string  `json:"-"`
	Extra       *string `json:"extra"`
	BackupCodes *string `json:"-"`
	AdminUserID uint64     `json:"adminUserId" gorm:"index"`
	AdminUser   *AdminUser `json:"-" gorm:"foreignKey:AdminUserID;constraint:OnDelete:CASCADE"`
}

type AdminUserTwoFaDevice struct {
	ID          uint64 `json:"id" gorm:"primaryKey"`
	DeviceName  string `json:"deviceName"`
	DeviceToken string `json:"-"`
	AdminUserID uint64     `json:"adminUserId" gorm:"index"`
	AdminUser   *AdminUser `json:"-" gorm:"foreignKey:AdminUserID;constraint:OnDelete:CASCADE"`
}