field.php

См. документацию.

<?php
namespace Bitrix\Landing;
 
abstract class Field
{
    protected $id;

    protected $code;

    protected $value;

    protected $title;

    protected $default;

    protected $help;

    protected $htmlHelp;

    protected $searchable = false;

    protected $fetchModificator = null;

    public function __construct($code, array $params = array())
    {
        $this->code = mb_strtoupper($code);
        $this->value = null;
        $this->id = isset($params['id']) ? $params['id'] : '';
        $this->title = isset($params['title']) ? $params['title'] : '';
        $this->default = isset($params['default']) ? $params['default'] : null;
        $this->help = isset($params['help']) ? $params['help'] : '';
        $this->htmlHelp = isset($params['htmlHelp']) ? $params['htmlHelp'] : false;
        $this->searchable = isset($params['searchable']) && $params['searchable'] === true;
        $this->fetchModificator = isset($params['fetch_data_modification']) ? $params['fetch_data_modification'] : null;
    }

    public function isEmptyValue()
    {
        return $this->value === null;
    }

    public function setValue($value)
    {
        $this->value = $value;
    }

    public function getValue()
    {
        if (is_callable($this->fetchModificator))
        {
            return call_user_func_array(
                $this->fetchModificator,
                [$this->value]
            );
        }
        return $this->value;
    }

    public function getHelpValue()
    {
        return $this->help;
    }

    public function isHtmlHelp()
    {
        return $this->htmlHelp === true;
    }

    public function isSearchable()
    {
        return $this->searchable;
    }

    public function setCode($code)
    {
        $this->code = mb_strtoupper($code);
    }

    public function getCode()
    {
        return $this->code;
    }

    public function getLabel()
    {
        return $this->title;
    }

    public function getType()
    {
        $class = explode('\\', get_called_class());
        return mb_strtolower(array_pop($class));
    }

    public function __toString()
    {
        return $this->value ? (string)$this->value : (string)$this->default;
    }

    abstract public function viewForm(array $params = array());
}