}

			if db, ok := jt.Subquery.(interface{ getInstance() *DB }); ok {
				stmt := db.getInstance().Statement
				if len(j.Selects) == 0 {
					j.Selects = stmt.Selects
				}
				if len(j.Omits) == 0 {
					j.Omits = stmt.Omits
				}
			}

			expr := clause.NamedExpr{SQL: fmt.Sprintf("%s JOIN (?) AS ?", joinType), Vars: []interface{}{jt.Subquery, clause.Table{Name: j.Alias}}}

			if j.On != nil {

	DB.Save(&user)

	results := make([]*User, 0)

	if err := DB.Table("users").Omit("name").Where("users.name = ?", "joins_with_omit").Joins("left join pets on pets.user_id = users.id").Find(&results).Error; err != nil {
		return
	}

	if len(results) != 2 || results[0].Name != "" || results[1].Name != "" {
		t.Errorf("Should find all two pets with Join omit and should not find user's name, got %+v", results)
		return
	}
}

			columnName := matches[3]
			if star != "" {
				return table, star
			}
			return table, columnName
		}
		return "", ""
	}
}()

// SelectAndOmitColumns get select and omit columns, select -> true, omit -> false
func (stmt *Statement) SelectAndOmitColumns(requireCreate, requireUpdate bool) (map[string]bool, bool) {
	results := map[string]bool{}
	notRestricted := false

	if err := DB.Omit("Languages.*").Create(&user).Error; err == nil {
		t.Fatalf("should raise error when create users without languages reference")
	}

	if err := DB.Create(&user.Languages).Error; err != nil {
		t.Fatalf("no error should happen when create languages, but got %v", err)
	}

	if err := DB.Omit("Languages.*").Create(&user).Error; err != nil {

		tx = tx.Set("gorm:update_track_time", true)
	}

	if len(selects) > 0 {
		tx = tx.Select(selects)
	} else if restricted && len(omits) == 0 {
		tx = tx.Omit(clause.Associations)
	}

	if len(omits) > 0 {
		tx = tx.Omit(omits...)
	}

	return db.AddError(tx.Create(values).Error)
}

// check association values has been saved
// if values kind is Struct, check it has been saved

<plist version="1.0">
<dict>
	<key>rules</key>
	<dict>
		<key>.*</key>
		<true/>
		<key>Info.plist</key>
		<dict>
			<key>omit</key>
			<true/>
			<key>weight</key>
			<integer>10</integer>
		</dict>
		<key>ResourceRules.plist</key>
		<dict>
			<key>omit</key>
			<true/>
			<key>weight</key>
			<integer>100</integer>
		</dict>
	</dict>
</dict>
</plist>

 * certificate is signed by the certificate that follows, and the last certificate is a trusted CA
 * certificate.
 *
 * Use of the chain cleaner is necessary to omit unexpected certificates that aren't relevant to
 * the TLS handshake and to extract the trusted CA certificate for the benefit of certificate
 * pinning.
 */
abstract class CertificateChainCleaner {

	}

	return
}

// Omit specify fields that you want to ignore when creating, updating and querying
func (db *DB) Omit(columns ...string) (tx *DB) {
	tx = db.getInstance()

	if len(columns) == 1 && strings.ContainsRune(columns[0], ',') {
		tx.Statement.Omits = strings.FieldsFunc(columns[0], utils.IsValidDBNameChar)
	} else {
		tx.Statement.Omits = columns
	}
	return
}

		"Toys":      user2.Toys,
		"Company":   user2.Company,
		"Manager":   user2.Manager,
		"Team":      user2.Team,
		"Languages": user2.Languages,
		"Friends":   user2.Friends,
	}

	DB.Model(&result).Omit("name", "updated_at").Updates(updateValues)

	var result2 User

* `tax: float = 10.5` has a default of `10.5`.
* `tags: List[str] = []` has a default of an empty list: `[]`.

but you might want to omit them from the result if they were not actually stored.

For example, if you have models with many optional attributes in a NoSQL database, but you don't want to send very long JSON responses full of default values.