appwrite/app/init/database/formats.php

<?php

use Utopia\Database\Validator\Datetime as DatetimeValidator;
use Utopia\Database\Validator\Structure;
use Utopia\Emails\Validator\Email;
use Utopia\Query\Schema\ColumnType;
use Utopia\Validator\IP;
use Utopia\Validator\Range;
use Utopia\Validator\URL;
use Utopia\Validator\WhiteList;

Structure::addFormat(APP_DATABASE_ATTRIBUTE_EMAIL, function () {
    return new Email();
}, ColumnType::String);

Structure::addFormat(APP_DATABASE_ATTRIBUTE_DATETIME, function () {
    return new DatetimeValidator();
}, ColumnType::Datetime);

Structure::addFormat(APP_DATABASE_ATTRIBUTE_ENUM, function ($attribute) {
    $elements = $attribute['formatOptions']['elements'] ?? [];
    return new WhiteList($elements, true);
}, ColumnType::String);

Structure::addFormat(APP_DATABASE_ATTRIBUTE_IP, function () {
    return new IP();
}, ColumnType::String);

Structure::addFormat(APP_DATABASE_ATTRIBUTE_URL, function () {
    return new URL();
}, ColumnType::String);

Structure::addFormat(APP_DATABASE_ATTRIBUTE_INT_RANGE, function ($attribute) {
    $min = $attribute['formatOptions']['min'] ?? -INF;
    $max = $attribute['formatOptions']['max'] ?? INF;
    return new Range($min, $max, Range::TYPE_INTEGER);
}, ColumnType::Integer);

Structure::addFormat(APP_DATABASE_ATTRIBUTE_FLOAT_RANGE, function ($attribute) {
    $min = $attribute['formatOptions']['min'] ?? -INF;
    $max = $attribute['formatOptions']['max'] ?? INF;
    return new Range($min, $max, Range::TYPE_FLOAT);
}, ColumnType::Double);