Как сделать свою карточку редактирования компании

# pip install b24pysdk flask
from html import escape
from flask import Flask, request
from b24pysdk import BitrixWebhook, Client
from save_form import save_form

app = Flask(__name__)
ENTITY_TYPE_ID = 4

client = Client(BitrixWebhook(
    domain="your-domain.bitrix24.ru",
    webhook_token="USER_ID/TOKEN",  # только user_id/token, без https://
))


def input_field(params):
    """Строит input или набор input для множественного поля."""
    if params.get("MULTIPLE"):
        current = params.get("VALUE") if isinstance(params.get("VALUE"), list) else [params.get("VALUE") or ""]
        values = [*current, ""]
    else:
        values = [params.get("VALUE") or ""]

    html = ""
    for index, value in enumerate(values):
        html += '<input class="form-control"'
        if params.get("NAME"):
            html += f' name="{escape(params["NAME"])}{"[]" if params.get("MULTIPLE") else ""}"'
        if params.get("TYPE"):
            html += f' type="{escape(params["TYPE"])}"'
        if params.get("STEP"):
            html += f' step="{escape(params["STEP"])}"'
        if params.get("REQUIRED") and index == 0:
            html += " required"
        if params.get("DISABLE"):
            html += " disabled"
        if params.get("CHECKED"):
            html += " checked"
        html += f' value="{escape(str(value))}">'
    return html


def select_field(params, options):
    """Строит <select> по словарю «значение => подпись»."""
    if not options:
        return ""
    html = '<select class="form-control"'
    if params.get("NAME"):
        html += f' name="{params["NAME"]}{"[]" if params.get("MULTIPLE") else ""}"'
    if params.get("REQUIRED"):
        html += " required"
    if params.get("DISABLE"):
        html += " disabled"
    if params.get("MULTIPLE"):
        html += " multiple"
    html += ">"
    if not params.get("REQUIRED") and not params.get("MULTIPLE"):
        html += '<option value="">-- Не выбрано --</option>'
    value = params.get("VALUE")
    value = [str(v) for v in value] if isinstance(value, list) else [str(value or "")]
    for key, title in options.items():
        selected = " selected" if str(key) in value else ""
        html += f'<option value="{escape(str(key))}"{selected}>{escape(str(title))}</option>'
    return html + "</select>"


def multifields(values):
    """Строит строки fm и сохраняет id существующих значений."""
    rows = list(values) if isinstance(values, list) else []
    rows.extend({"id": "", "typeId": "PHONE", "valueType": "WORK", "value": ""} for _ in range(3))
    html = ""
    for index, row in enumerate(rows):
        options = "".join(
            f'<option value="{field_type}"{" selected" if row.get("typeId") == field_type else ""}>{field_type}</option>'
            for field_type in ("PHONE", "EMAIL", "WEB", "IM")
        )
        item_id = row.get("id") or ""
        delete = (
            f'<label><input type="checkbox" name="fm[{index}][delete]" value="Y"> Удалить</label>'
            if item_id else ""
        )
        html += f"""<div class="border rounded p-2 mb-2">
            <input type="hidden" name="fm[{index}][id]" value="{escape(str(item_id))}">
            <select class="form-control mb-1" name="fm[{index}][typeId]">{options}</select>
            <input class="form-control mb-1" name="fm[{index}][valueType]" value="{escape(row.get('valueType') or 'WORK')}" placeholder="WORK">
            <input class="form-control mb-1" name="fm[{index}][value]" value="{escape(row.get('value') or '')}" placeholder="Значение">
            {delete}
        </div>"""
    return html


PAGE = """
    <link rel="stylesheet" href="https://stackpath.bootstrapcdn.com/bootstrap/4.3.1/css/bootstrap.min.css" crossorigin="anonymous">
    <div class="container">
        <form id="auto_form" method="post">
            %(hidden_id)s
            <h2>Системные поля</h2>
            <div class="row">%(standard)s</div>
            <h2>Пользовательские поля</h2>
            <div class="row">%(custom)s</div>
            <div class="row"><div class="col-sm-10 mt-5">
                <input type="submit" class="btn btn-primary" value="Сохранить">
            </div></div>
        </form>
    </div>
    <script>
        document.getElementById('auto_form').addEventListener('submit', async (el) => {
            el.preventDefault();
            const body = new URLSearchParams(new FormData(el.currentTarget));
            const response = await fetch('/form', { method: 'POST', body });
            const json = await response.json();
            alert(json.message || json.error);
        });
    </script>
"""


@app.route("/")
def form_page():
    item_id = int(request.args.get("ID", 0) or 0)

    ar_result = {}
    field_response = client.crm.item.fields(
        entity_type_id=ENTITY_TYPE_ID,
        use_original_uf_names=True,
    ).response
    ar_result["FIELDS"] = field_response.result["fields"]
    ar_result["FIELD_VALUES_CURRENCY"] = client.crm.currency.list().response.result

    if item_id > 0:
        item_response = client.crm.item.get(
            entity_type_id=ENTITY_TYPE_ID,
            bitrix_id=item_id,
            use_original_uf_names=True,
        ).response
        ar_result["ITEM"] = item_response.result["item"]

    item = ar_result.get("ITEM", {})
    s_result = ""
    s_result_custom = ""
    for key, field in ar_result["FIELDS"].items():
        if key == "contacts":
            continue
        value = item.get(key) or ""
        params = {"NAME": f"form[{key}]", "REQUIRED": field.get("isRequired"),
                  "DISABLE": field.get("isReadOnly"), "MULTIPLE": field.get("isMultiple"), "VALUE": value}
        ret = ""
        field_type = field.get("type")
        if field_type == "crm_status":
            rows = ar_result.get("FIELD_VALUES_" + key) or client.crm.status.list(
                filter={"ENTITY_ID": field["statusType"]}).response.result
            ret = select_field(params, {r["STATUS_ID"]: r["NAME"] for r in rows})
        elif field_type == "crm_currency":
            options = {c["CURRENCY"]: c["FULL_NAME"] for c in ar_result["FIELD_VALUES_CURRENCY"]}
            ret = select_field(params, options)
        elif field_type == "enumeration":
            options = {
                it.get("ID", it.get("id")): it.get("VALUE", it.get("value"))
                for it in field.get("items", [])
            }
            ret = select_field(params, options)
        elif field_type == "crm_multifield":
            ret = multifields(value)
        elif field_type == "crm_lead":
            ret = input_field({**params, "TYPE": "text"})
            if value:
                lead_response = client.crm.item.get(entity_type_id=1, bitrix_id=int(value)).response
                ret += f" ({escape(lead_response.result['item']['title'])})"
        elif field_type == "crm_contact":
            ret = input_field({**params, "TYPE": "number"})
            ids = [int(contact_id) for contact_id in (value if isinstance(value, list) else [value]) if contact_id]
            if ids:
                contact_response = client.crm.item.list(
                    entity_type_id=3,
                    filter={"@id": ids},
                    select=["id", "name", "lastName"],
                ).response
                contacts = contact_response.result["items"]
                if contacts:
                    names = [" ".join(filter(None, [contact.get("name"), contact.get("lastName")])) for contact in contacts]
                    ret += f" ({escape(', '.join(names))})"
        elif field_type == "file":
            ret = "Тип file в примере не поддерживается"
        elif field_type == "date":
            if value:
                value = str(value)[:10]
            ret = input_field({**params, "VALUE": value, "TYPE": "date"})
        elif field_type == "datetime":
            if value:
                value = str(value)[:19]
            ret = input_field({**params, "VALUE": value, "TYPE": "datetime-local"})
        elif field_type == "char":
            ret = input_field({**params, "REQUIRED": False, "VALUE": "Y", "CHECKED": value == "Y", "TYPE": "checkbox"})
        elif field_type == "boolean":
            ret = input_field({**params, "REQUIRED": False, "VALUE": "Y", "CHECKED": value == "Y", "TYPE": "checkbox"})
        elif field_type == "double":
            ret = input_field({**params, "TYPE": "number", "STEP": "any"})
        elif field_type == "integer":
            ret = input_field({**params, "TYPE": "number"})
        elif field_type == "user":
            ret = input_field({**params, "TYPE": "number"})
            if value:
                users = client.user.get(filter={"ID": value}).response.result
                if users:
                    names = [" ".join(filter(None, [user.get("NAME"), user.get("LAST_NAME")])) for user in users]
                    ret += f" ({escape(', '.join(names))})"
        elif field_type == "money":
            money, _, currency = str(value).partition("|")
            ret = input_field({**params, "VALUE": money, "TYPE": "number", "STEP": "any"})
            options = {c["CURRENCY"]: c["FULL_NAME"] for c in ar_result["FIELD_VALUES_CURRENCY"]}
            ret += select_field({"NAME": f"form[{key}_CURRENCY]", "REQUIRED": field.get("isRequired"),
                                 "DISABLE": field.get("isReadOnly"), "MULTIPLE": field.get("isMultiple"),
                                 "VALUE": currency}, options)
        elif field_type == "resourcebooking":
            ret = "Тип resourcebooking в примере не поддерживается"
        else:
            ret = input_field({**params, "TYPE": "text"})

        label = escape(str(field.get("formLabel") or field.get("title") or key))
        block = f'<div class="col-4 mt-3">{label}: </div><div class="col-6 mt-3">{ret}</div>'
        if key.startswith("UF_"):
            s_result_custom += block
        else:
            s_result += block

    # Скрытое поле id добавляем только для формы редактирования
    hidden_id = ""
    if item.get("id"):
        hidden_id = f'<input type="hidden" name="form[id]" value="{escape(str(item["id"]))}">'
    return PAGE % {"hidden_id": hidden_id, "standard": s_result, "custom": s_result_custom}


app.add_url_rule("/form", view_func=save_form, methods=["POST"])


if __name__ == "__main__":
    app.run(port=5000)

<?php
    // composer require bitrix24/b24phpsdk:"^3.0"
    require_once 'vendor/autoload.php';

    use Bitrix24\SDK\Services\ServiceBuilderFactory;
    use Symfony\Component\EventDispatcher\EventDispatcher;
    use Psr\Log\NullLogger;

    $sb = (new ServiceBuilderFactory(new EventDispatcher(), new NullLogger()))
        ->initFromWebhook('https://your-domain.bitrix24.ru/rest/USER_ID/TOKEN/');
    $crm = $sb->getCRMScope();

    const ENTITY_TYPE_ID = 4;
    $ID = (int)($_REQUEST['ID'] ?? 0);

    class CPrintForm
    {
        public static function escape($value): string
        {
            return htmlspecialchars((string)$value, ENT_QUOTES | ENT_SUBSTITUTE, 'UTF-8');
        }

        public static function input($arParams)
        {
            $sResult = '';
            $current = !empty($arParams['MULTIPLE'])
                ? (is_array($arParams['VALUE']) ? $arParams['VALUE'] : [$arParams['VALUE'] ?? ''])
                : [$arParams['VALUE'] ?? ''];
            if (!empty($arParams['MULTIPLE']))
            {
                $current[] = '';
            }

            foreach ($current as $index => $value)
            {
                $sResult .= '<input class="form-control"';
                if (!empty($arParams['NAME']))
                {
                    $sResult .= ' name="' . self::escape($arParams['NAME']) . (!empty($arParams['MULTIPLE']) ? '[]' : '') . '"';
                }
                if (!empty($arParams['TYPE']))
                {
                    $sResult .= ' type="' . self::escape($arParams['TYPE']) . '"';
                }
                if (!empty($arParams['STEP']))
                {
                    $sResult .= ' step="' . self::escape($arParams['STEP']) . '"';
                }
                if (!empty($arParams['REQUIRED']) && $index === 0)
                {
                    $sResult .= ' required';
                }
                if (!empty($arParams['DISABLE']))
                {
                    $sResult .= ' disabled';
                }
                if (!empty($arParams['CHECKED']))
                {
                    $sResult .= ' checked';
                }
                $sResult .= ' value="' . self::escape($value) . '">';
            }

            return $sResult;
        }

        public static function select($arParams, $arList)
        {
            if (empty($arList) || !is_array($arList))
            {
                return '';
            }

            $sResult = '<select class="form-control"';
            $sResult .= ' name="' . self::escape($arParams['NAME']) . (!empty($arParams['MULTIPLE']) ? '[]' : '') . '"';
            $sResult .= !empty($arParams['REQUIRED']) ? ' required' : '';
            $sResult .= !empty($arParams['DISABLE']) ? ' disabled' : '';
            $sResult .= !empty($arParams['MULTIPLE']) ? ' multiple' : '';
            $sResult .= '>';
            if (empty($arParams['REQUIRED']) && empty($arParams['MULTIPLE']))
            {
                $sResult .= '<option value="">-- Не выбрано --</option>';
            }
            $values = array_map('strval', (array)($arParams['VALUE'] ?? []));
            foreach ($arList as $k => $v)
            {
                $selected = in_array((string)$k, $values, true) ? ' selected' : '';
                $sResult .= '<option value="' . self::escape($k) . '"' . $selected . '>' . self::escape($v) . '</option>';
            }
            $sResult .= '</select>';

            return $sResult;
        }

        public static function multifields($values): string
        {
            $rows = is_array($values) ? $values : [];
            for ($i = 0; $i < 3; $i++)
            {
                $rows[] = ['id' => '', 'typeId' => 'PHONE', 'valueType' => 'WORK', 'value' => ''];
            }

            $result = '';
            foreach ($rows as $index => $row)
            {
                $options = '';
                foreach (['PHONE', 'EMAIL', 'WEB', 'IM'] as $type)
                {
                    $selected = ($row['typeId'] ?? '') === $type ? ' selected' : '';
                    $options .= '<option value="' . $type . '"' . $selected . '>' . $type . '</option>';
                }
                $id = $row['id'] ?? '';
                $result .= '<div class="border rounded p-2 mb-2">';
                $result .= '<input type="hidden" name="fm[' . $index . '][id]" value="' . self::escape($id) . '">';
                $result .= '<select class="form-control mb-1" name="fm[' . $index . '][typeId]">' . $options . '</select>';
                $result .= '<input class="form-control mb-1" name="fm[' . $index . '][valueType]" value="' . self::escape($row['valueType'] ?? 'WORK') . '" placeholder="WORK">';
                $result .= '<input class="form-control mb-1" name="fm[' . $index . '][value]" value="' . self::escape($row['value'] ?? '') . '" placeholder="Значение">';
                if ($id)
                {
                    $result .= '<label><input type="checkbox" name="fm[' . $index . '][delete]" value="Y"> Удалить</label>';
                }
                $result .= '</div>';
            }

            return $result;
        }
    }

    function callCore($sb, string $method, array $params): array
    {
        return $sb->core
            ->call($method, $params)
            ->getResponseData()
            ->getResult();
    }

    $arResult = [];
    $fieldResult = callCore($sb, 'crm.item.fields', [
        'entityTypeId' => ENTITY_TYPE_ID,
        'useOriginalUfNames' => 'Y',
    ]);
    $arResult['FIELDS'] = $fieldResult['fields'];

    $arResult['FIELD_VALUES_CURRENCY'] = [];
    foreach ($crm->currency()->list([])->getCurrencies() as $currency)
    {
        // CURRENCY в B24PhpSDK — объект Money\Currency, строковый код берем через getCode()
        $arResult['FIELD_VALUES_CURRENCY'][$currency->CURRENCY->getCode()] = $currency->FULL_NAME;
    }

    if ($ID > 0)
    {
        $itemResult = callCore($sb, 'crm.item.get', [
            'entityTypeId' => ENTITY_TYPE_ID,
            'id' => $ID,
            'useOriginalUfNames' => 'Y',
        ]);
        $arResult['ITEM'] = $itemResult['item'];
    }

    $sResult = '';
    $sResultCustom = '';
if (is_array($arResult['FIELDS'])):
    foreach ($arResult['FIELDS'] as $key => $arField)
    {
        if ($key === 'contacts')
        {
            continue;
        }
        $value = '';
        $return = '';
        if (!empty($arResult['ITEM'][$key]))
        {
            $value = $arResult['ITEM'][$key];
        }
        $arList = (isset($arResult['FIELD_VALUES_' . $key])) ? $arResult['FIELD_VALUES_' . $key] : [];
        switch ($arField['type'])
        {
            case 'crm_status':
                if (empty($arList))
                {
                    foreach ($crm->status()->list([], ['ENTITY_ID' => $arField['statusType']], [])->getStatuses() as $status)
                    {
                        $arList[$status->STATUS_ID] = $status->NAME;
                    }
                }

                $return = CPrintForm::select(
                    [
                        'NAME' => 'form[' . $key . ']',
                        'REQUIRED' => $arField['isRequired'],
                        'DISABLE' => $arField['isReadOnly'],
                        'MULTIPLE' => $arField['isMultiple'],
                        'VALUE' => $value
                    ],
                    $arList
                );
                break;
            case 'crm_currency':
                $return = CPrintForm::select(
                    [
                        'NAME' => 'form[' . $key . ']',
                        'REQUIRED' => $arField['isRequired'],
                        'DISABLE' => $arField['isReadOnly'],
                        'MULTIPLE' => $arField['isMultiple'],
                        'VALUE' => $value
                    ],
                    $arResult['FIELD_VALUES_CURRENCY']
                );
                break;
            case 'enumeration':
                foreach ($arField['items'] as $aItem)
                {
                    $itemId = $aItem['ID'] ?? $aItem['id'];
                    $arList[$itemId] = $aItem['VALUE'] ?? $aItem['value'];
                }

                $return = CPrintForm::select(
                    [
                        'NAME' => 'form[' . $key . ']',
                        'REQUIRED' => $arField['isRequired'],
                        'DISABLE' => $arField['isReadOnly'],
                        'MULTIPLE' => $arField['isMultiple'],
                        'VALUE' => $value
                    ],
                    $arList
                );
                break;
            case 'crm_multifield':
                $return = CPrintForm::multifields($value);
                break;
            case 'crm_lead':
                $return = CPrintForm::input(
                    [
                        'NAME' => 'form[' . $key . ']',
                        'REQUIRED' => $arField['isRequired'],
                        'DISABLE' => $arField['isReadOnly'],
                        'MULTIPLE' => $arField['isMultiple'],
                        'VALUE' => $value,
                        'TYPE' => 'text',
                    ]
                );

                if (!empty($value))
                {
                    $lead = $crm->item()->get(1, (int)$value)->item();
                    $return .= ' (' . CPrintForm::escape($lead->title) . ')';
                }
                break;
            case 'crm_contact':
                $arContact = [];
                $arContactIds = array_values(array_filter(array_map('intval', (array)$value)));
                if (!empty($arContactIds))
                {
                    foreach ($crm->item()->list(3, [], ['@id' => $arContactIds], ['id', 'name', 'lastName'], 0)->getItems() as $contact)
                    {
                        $arContact[] = trim(implode(' ', [$contact->name, $contact->lastName]));
                    }
                }
                $return = CPrintForm::input(
                    [
                        'NAME' => 'form[' . $key . ']',
                        'REQUIRED' => $arField['isRequired'],
                        'DISABLE' => $arField['isReadOnly'],
                        'MULTIPLE' => $arField['isMultiple'],
                        'VALUE' => $value,
                        'TYPE' => 'number',
                    ]
                );
                if (!empty($arContact))
                {
                    $return .= ' (' . CPrintForm::escape(implode(', ', $arContact)) . ')';
                }
                break;
            case 'file':
                $return = 'Тип file в примере не поддерживается';
                break;
            case 'date':
                if (!empty($value))
                {
                    $value = date('Y-m-d', strtotime($value));
                }
                $return = CPrintForm::input(
                    [
                        'NAME' => 'form[' . $key . ']',
                        'REQUIRED' => $arField['isRequired'],
                        'DISABLE' => $arField['isReadOnly'],
                        'MULTIPLE' => $arField['isMultiple'],
                        'VALUE' => $value,
                        'TYPE' => 'date',
                    ]
                );
                break;
            case 'datetime':
                if (!empty($value))
                {
                    $value = date('Y-m-d\TH:i:s', strtotime($value));
                }
                $return = CPrintForm::input(
                    [
                        'NAME' => 'form[' . $key . ']',
                        'REQUIRED' => $arField['isRequired'],
                        'DISABLE' => $arField['isReadOnly'],
                        'MULTIPLE' => $arField['isMultiple'],
                        'VALUE' => $value,
                        'TYPE' => 'datetime-local',
                    ]
                );
                break;
            case 'char':
                $return = CPrintForm::input(
                    [
                        'NAME' => 'form[' . $key . ']',
                        'REQUIRED' => false,
                        'DISABLE' => $arField['isReadOnly'],
                        'MULTIPLE' => $arField['isMultiple'],
                        'VALUE' => 'Y',
                        'CHECKED' => ($value == 'Y') ? true : false,
                        'TYPE' => 'checkbox',
                    ]
                );
                break;

            case 'boolean':
                $return = CPrintForm::input(
                    [
                        'NAME' => 'form[' . $key . ']',
                        'REQUIRED' => false,
                        'DISABLE' => $arField['isReadOnly'],
                        'MULTIPLE' => $arField['isMultiple'],
                        'VALUE' => 'Y',
                        'CHECKED' => ($value == 'Y') ? true : false,
                        'TYPE' => 'checkbox',
                    ]
                );
                break;
            case 'double':
                $return = CPrintForm::input(
                    [
                        'NAME' => 'form[' . $key . ']',
                        'REQUIRED' => $arField['isRequired'],
                        'DISABLE' => $arField['isReadOnly'],
                        'MULTIPLE' => $arField['isMultiple'],
                        'VALUE' => $value,
                        'TYPE' => 'number',
                        'STEP' => 'any',
                    ]
                );
                break;
            case 'user':
                $arUserNames = [];
                if (!empty($value))
                {
                    foreach ($sb->getUserScope()->user()->get([], ['ID' => $value], true)->getUsers() as $user)
                    {
                        $arUserNames[] = implode(' ', [$user->NAME, $user->LAST_NAME]);
                    }
                }
                $return = CPrintForm::input(
                    [
                        'NAME' => 'form[' . $key . ']',
                        'REQUIRED' => $arField['isRequired'],
                        'DISABLE' => $arField['isReadOnly'],
                        'MULTIPLE' => $arField['isMultiple'],
                        'VALUE' => $value,
                        'TYPE' => 'number'
                    ]
                );
                if (!empty($arUserNames))
                {
                    $return .= ' (' . CPrintForm::escape(implode(', ', $arUserNames)) . ')';
                }

                break;
            case 'url':
                $return = CPrintForm::input(
                    [
                        'NAME' => 'form[' . $key . ']',
                        'REQUIRED' => $arField['isRequired'],
                        'DISABLE' => $arField['isReadOnly'],
                        'MULTIPLE' => $arField['isMultiple'],
                        'VALUE' => $value,
                        'TYPE' => 'text',
                    ]
                );
                break;
            case 'integer':
                $return = CPrintForm::input(
                    [
                        'NAME' => 'form[' . $key . ']',
                        'REQUIRED' => $arField['isRequired'],
                        'DISABLE' => $arField['isReadOnly'],
                        'MULTIPLE' => $arField['isMultiple'],
                        'VALUE' => $value,
                        'TYPE' => 'number',
                    ]
                );
                break;
            case 'money':
                [$money, $currency] = array_pad(explode('|', (string)$value, 2), 2, '');
                $return = CPrintForm::input(
                    [
                        'NAME' => 'form[' . $key . ']',
                        'REQUIRED' => $arField['isRequired'],
                        'DISABLE' => $arField['isReadOnly'],
                        'MULTIPLE' => $arField['isMultiple'],
                        'VALUE' => $money,
                        'TYPE' => 'number',
                        'STEP' => 'any',
                    ]
                );
                $return .= CPrintForm::select(
                    [
                        'NAME' => 'form[' . $key . '_CURRENCY]',
                        'REQUIRED' => $arField['isRequired'],
                        'DISABLE' => $arField['isReadOnly'],
                        'MULTIPLE' => $arField['isMultiple'],
                        'VALUE' => $currency
                    ],
                    $arResult['FIELD_VALUES_CURRENCY']
                );
                break;
            case 'address':
                $return = CPrintForm::input(
                    [
                        'NAME' => 'form[' . $key . ']',
                        'REQUIRED' => $arField['isRequired'],
                        'DISABLE' => $arField['isReadOnly'],
                        'MULTIPLE' => $arField['isMultiple'],
                        'VALUE' => $value,
                        'TYPE' => 'text',
                    ]
                );
                break;
            case 'resourcebooking':
                $return = 'Тип resourcebooking в примере не поддерживается';
                break;
            default:
                $return = CPrintForm::input(
                    [
                        'NAME' => 'form[' . $key . ']',
                        'REQUIRED' => $arField['isRequired'],
                        'DISABLE' => $arField['isReadOnly'],
                        'MULTIPLE' => $arField['isMultiple'],
                        'VALUE' => $value,
                        'TYPE' => 'text',
                    ]
                );
                break;
        }

        $label = CPrintForm::escape($arField['formLabel'] ?? $arField['title'] ?? $key);
        $block = '<div class="col-4 mt-3">' . $label . ': </div><div class="col-6 mt-3">' . $return . '</div>';
        if (strpos($key, 'UF_') === 0)
        {
            $sResultCustom .= $block;
        }
        else
        {
            $sResult .= $block;
        }
    }

?>
    <link rel="stylesheet" href="https://stackpath.bootstrapcdn.com/bootstrap/4.3.1/css/bootstrap.min.css" crossorigin="anonymous">
    <script>
        document.addEventListener('DOMContentLoaded', () => {
            document.getElementById('auto_form').addEventListener('submit', async (event) => {
                event.preventDefault();
                const body = new URLSearchParams(new FormData(event.currentTarget));
                const response = await fetch('auto_form.php', { method: 'POST', body });
                const json = await response.json();
                alert(json.message || json.error);
            });
        });
    </script>
    <div class="container">
        <form id="auto_form" action="" method="post">
            <?php if (!empty($arResult['ITEM']['id'])): ?>
                <input type="hidden" name="form[id]" value="<?= CPrintForm::escape($arResult['ITEM']['id']) ?>">
            <?php endif; ?>
            <h2>Системные поля</h2>
            <div class="row">
                <?= $sResult ?>
            </div>
            <h2>Пользовательские поля</h2>
            <div class="row">
                <?= $sResultCustom ?>
            </div>
            <div class="row">
                <div class="col-sm-10 mt-5">
                    <input type="submit" class="btn btn-primary" value="Сохранить">
                </div>
            </div>
        </form>
    </div>
<?php endif; ?>

# pip install b24pysdk flask
import re
from flask import request, jsonify
from b24pysdk import BitrixWebhook, Client

ENTITY_TYPE_ID = 4
FORM_KEY = re.compile(r"^form\[([^]]+)](\[\])?$")
FM_KEY = re.compile(r"^fm\[(\d+)]\[(id|typeId|valueType|value|delete)]$")

client = Client(BitrixWebhook(
    domain="your-domain.bitrix24.ru",
    webhook_token="USER_ID/TOKEN",  # только user_id/token, без https://
))


def parse_form():
    result = {}
    for full_key in request.form:
        match = FORM_KEY.match(full_key)
        if not match:
            continue
        values = request.form.getlist(full_key)
        result[match.group(1)] = values if match.group(2) else values[-1]
    return result


def parse_multifield_rows():
    rows = {}
    for full_key in request.form:
        match = FM_KEY.match(full_key)
        if match:
            rows.setdefault(int(match.group(1)), {})[match.group(2)] = request.form[full_key]
    return rows


def build_multifields(rows):
    result = {}
    new_index = 0
    for row in rows.values():
        item_id = int(row.get("id") or 0)
        value = str(row.get("value") or "")
        should_delete = row.get("delete") == "Y" or value == ""
        if not item_id and should_delete:
            continue

        key = str(item_id) if item_id else f"n{new_index}"
        if not item_id:
            new_index += 1
        result[key] = {
            "typeId": str(row.get("typeId") or "PHONE"),
            "valueType": str(row.get("valueType") or "WORK"),
            "value": "" if should_delete else value,
        }
    return result


def save_form():
    try:
        submitted = parse_form()
        field_response = client.crm.item.fields(
            entity_type_id=ENTITY_TYPE_ID,
            use_original_uf_names=True,
        ).response

        fields = {}
        for key, prop in field_response.result["fields"].items():
            if key == "contacts" or prop.get("isReadOnly") or prop.get("type") in ("file", "resourcebooking"):
                continue
            if prop.get("type") in ("boolean", "char"):
                fields[key] = "Y" if key in submitted else "N"
                continue
            if prop.get("type") == "crm_multifield":
                fields[key] = build_multifields(parse_multifield_rows())
                continue
            if key not in submitted:
                fields[key] = [] if prop.get("isMultiple") else ""
                continue

            value = submitted[key]
            if prop.get("type") == "money":
                value = f"{value or ''}|{submitted.get(f'{key}_CURRENCY', '')}"
            elif prop.get("type") == "crm_contact":
                values = value if isinstance(value, list) else [value]
                value = [int(item_id) for item_id in values if str(item_id).isdigit() and int(item_id) > 0]
            elif prop.get("isMultiple"):
                value = [item for item in (value if isinstance(value, list) else [value]) if item != ""]
            fields[key] = value

        item_id = int(submitted.get("id") or 0)
        if item_id > 0:
            response = client.crm.item.update(
                entity_type_id=ENTITY_TYPE_ID,
                bitrix_id=item_id,
                fields=fields,
                use_original_uf_names=True,
            ).response
        else:
            response = client.crm.item.add(
                entity_type_id=ENTITY_TYPE_ID,
                fields=fields,
                use_original_uf_names=True,
            ).response

        return jsonify(message=f"Компания сохранена, ID: {response.result['item']['id']}")
    except Exception as error:
        return jsonify(error=str(error)), 400

<?php
    // composer require bitrix24/b24phpsdk:"^3.0"
    require_once 'vendor/autoload.php';

    use Bitrix24\SDK\Services\ServiceBuilderFactory;
    use Symfony\Component\EventDispatcher\EventDispatcher;
    use Psr\Log\NullLogger;

    $sb = (new ServiceBuilderFactory(new EventDispatcher(), new NullLogger()))
        ->initFromWebhook('https://your-domain.bitrix24.ru/rest/USER_ID/TOKEN/');

    const ENTITY_TYPE_ID = 4;
    header('Content-Type: application/json; charset=utf-8');

        function callCore($sb, string $method, array $params): array
        {
            return $sb->core
                ->call($method, $params)
                ->getResponseData()
                ->getResult();
        }

        function buildMultifields(array $rows): array
        {
            $result = [];
            $newIndex = 0;
            foreach ($rows as $row)
            {
                $id = (int)($row['id'] ?? 0);
                $value = (string)($row['value'] ?? '');
                $shouldDelete = ($row['delete'] ?? '') === 'Y' || $value === '';
                if ($id <= 0 && $shouldDelete)
                {
                    continue;
                }

                $key = $id > 0 ? (string)$id : 'n' . $newIndex++;
                $result[$key] = [
                    'typeId' => (string)($row['typeId'] ?? 'PHONE'),
                    'valueType' => (string)($row['valueType'] ?? 'WORK'),
                    'value' => $shouldDelete ? '' : $value,
                ];
            }

            return $result;
        }

        try
        {
            $submitted = is_array($_POST['form'] ?? null) ? $_POST['form'] : [];
            $fieldResult = callCore($sb, 'crm.item.fields', [
                'entityTypeId' => ENTITY_TYPE_ID,
                'useOriginalUfNames' => 'Y',
            ]);

            $fields = [];
            foreach ($fieldResult['fields'] as $key => $prop)
            {
                if ($key === 'contacts' || !empty($prop['isReadOnly']) || in_array($prop['type'], ['file', 'resourcebooking'], true))
                {
                    continue;
                }
                if (in_array($prop['type'], ['boolean', 'char'], true))
                {
                    $fields[$key] = array_key_exists($key, $submitted) ? 'Y' : 'N';
                    continue;
                }
                if ($prop['type'] === 'crm_multifield')
                {
                    $fields[$key] = buildMultifields(is_array($_POST['fm'] ?? null) ? $_POST['fm'] : []);
                    continue;
                }
                if (!array_key_exists($key, $submitted))
                {
                    $fields[$key] = !empty($prop['isMultiple']) ? [] : '';
                    continue;
                }

                $value = $submitted[$key];
                if ($prop['type'] === 'money')
                {
                    $value = (string)$value . '|' . (string)($submitted[$key . '_CURRENCY'] ?? '');
                }
                elseif ($prop['type'] === 'crm_contact')
                {
                    $value = array_values(array_filter(array_map('intval', (array)$value)));
                }
                elseif (!empty($prop['isMultiple']))
                {
                    $value = array_values(array_filter((array)$value, static fn($item) => $item !== ''));
                }
                $fields[$key] = $value;
            }

            $id = (int)($submitted['id'] ?? 0);
            $method = $id > 0 ? 'crm.item.update' : 'crm.item.add';
            $params = [
                'entityTypeId' => ENTITY_TYPE_ID,
                'fields' => $fields,
                'useOriginalUfNames' => 'Y',
            ];
            if ($id > 0)
            {
                $params['id'] = $id;
            }

            $result = callCore($sb, $method, $params);
            echo json_encode(
                ['message' => 'Компания сохранена, ID: ' . $result['item']['id']],
                JSON_UNESCAPED_UNICODE | JSON_THROW_ON_ERROR
            );
        }
        catch (Throwable $error)
        {
            http_response_code(400);
            echo json_encode(['error' => $error->getMessage()], JSON_UNESCAPED_UNICODE);
        }