CAllCrmContact::CompareFields

static function CompareFields(array $arFieldsOrig, array $arFieldsModif, array $arOptions = null)
{
	if(!is_array($arOptions))
	{
		$arOptions = array();
	}

	$arMsg = Array();

	if (
		isset($arFieldsOrig['HONORIFIC'], $arFieldsModif['HONORIFIC'])
		&&
		$arFieldsOrig['HONORIFIC'] !== $arFieldsModif['HONORIFIC']
	)
		{
		$honorifics = CCrmStatus::GetStatusList('HONORIFIC');
		$arMsg[] = [
				'ENTITY_FIELD' => 'HONORIFIC',
				'EVENT_NAME' => GetMessage('CRM_FIELD_COMPARE_HONORIFIC'),
			'EVENT_TEXT_1' => htmlspecialcharsbx(CrmCompareFieldsList($honorifics, $arFieldsOrig['HONORIFIC'])),
			'EVENT_TEXT_2' => htmlspecialcharsbx(CrmCompareFieldsList($honorifics, $arFieldsModif['HONORIFIC']))
		];
	}

	if (isset($arFieldsOrig['NAME']) && isset($arFieldsModif['NAME'])
		&& $arFieldsOrig['NAME'] != $arFieldsModif['NAME'])
		$arMsg[] = Array(
			'ENTITY_FIELD' => 'NAME',
			'EVENT_NAME' => GetMessage('CRM_FIELD_COMPARE_NAME'),
			'EVENT_TEXT_1' => !empty($arFieldsOrig['NAME'])? $arFieldsOrig['NAME']: GetMessage('CRM_FIELD_COMPARE_EMPTY'),
			'EVENT_TEXT_2' => !empty($arFieldsModif['NAME'])? $arFieldsModif['NAME']: GetMessage('CRM_FIELD_COMPARE_EMPTY'),
		);

	if (isset($arFieldsOrig['LAST_NAME']) && isset($arFieldsModif['LAST_NAME'])
		&& $arFieldsOrig['LAST_NAME'] != $arFieldsModif['LAST_NAME'])
		$arMsg[] = Array(
			'ENTITY_FIELD' => 'LAST_NAME',
			'EVENT_NAME' => GetMessage('CRM_FIELD_COMPARE_LAST_NAME'),
			'EVENT_TEXT_1' => !empty($arFieldsOrig['LAST_NAME'])? $arFieldsOrig['LAST_NAME']: GetMessage('CRM_FIELD_COMPARE_EMPTY'),
			'EVENT_TEXT_2' => !empty($arFieldsModif['LAST_NAME'])? $arFieldsModif['LAST_NAME']: GetMessage('CRM_FIELD_COMPARE_EMPTY'),
		);

	if (isset($arFieldsOrig['SECOND_NAME']) && isset($arFieldsModif['SECOND_NAME'])
		&& $arFieldsOrig['SECOND_NAME'] != $arFieldsModif['SECOND_NAME'])
		$arMsg[] = Array(
			'ENTITY_FIELD' => 'SECOND_NAME',
			'EVENT_NAME' => GetMessage('CRM_FIELD_COMPARE_SECOND_NAME'),
			'EVENT_TEXT_1' => !empty($arFieldsOrig['SECOND_NAME'])? $arFieldsOrig['SECOND_NAME']: GetMessage('CRM_FIELD_COMPARE_EMPTY'),
			'EVENT_TEXT_2' => !empty($arFieldsModif['SECOND_NAME'])? $arFieldsModif['SECOND_NAME']: GetMessage('CRM_FIELD_COMPARE_EMPTY'),
		);

	if (isset($arFieldsOrig['FM']) && isset($arFieldsModif['FM']))
		$arMsg = array_merge($arMsg, CCrmFieldMulti::CompareFields($arFieldsOrig['FM'], $arFieldsModif['FM']));

	if (isset($arFieldsOrig['POST']) && isset($arFieldsModif['POST'])
		&& $arFieldsOrig['POST'] != $arFieldsModif['POST'])
		$arMsg[] = Array(
			'ENTITY_FIELD' => 'POST',
			'EVENT_NAME' => GetMessage('CRM_FIELD_COMPARE_POST'),
			'EVENT_TEXT_1' => !empty($arFieldsOrig['POST'])? $arFieldsOrig['POST']: GetMessage('CRM_FIELD_COMPARE_EMPTY'),
			'EVENT_TEXT_2' => !empty($arFieldsModif['POST'])? $arFieldsModif['POST']: GetMessage('CRM_FIELD_COMPARE_EMPTY'),
		);

	$addressOptions = array();
	if(isset($arOptions['ADDRESS_FIELDS']))
	{
		$addressOptions['FIELDS'] = $arOptions['ADDRESS_FIELDS'];
	}

	$arMsg = array_merge(
		$arMsg,
		ContactAddress::prepareChangeEvents(
			$arFieldsOrig,
			$arFieldsModif,
			ContactAddress::Primary,
			$addressOptions
		)
	);

	if (isset($arFieldsOrig['COMMENTS']) && isset($arFieldsModif['COMMENTS'])
		&& $arFieldsOrig['COMMENTS'] != $arFieldsModif['COMMENTS'])
		$arMsg[] = Array(
			'ENTITY_FIELD' => 'COMMENTS',
			'EVENT_NAME' => GetMessage('CRM_FIELD_COMPARE_COMMENTS'),
			'EVENT_TEXT_1' => !empty($arFieldsOrig['COMMENTS'])? TextHelper::convertBbCodeToHtml($arFieldsOrig['COMMENTS']): GetMessage('CRM_FIELD_COMPARE_EMPTY'),
			'EVENT_TEXT_2' => !empty($arFieldsModif['COMMENTS'])? TextHelper::convertBbCodeToHtml($arFieldsModif['COMMENTS']): GetMessage('CRM_FIELD_COMPARE_EMPTY'),
		);

	if(isset($arOptions['COMPANIES']) && is_array($arOptions['COMPANIES']))
	{
		$addedCompanyIDs = isset($arOptions['COMPANIES']['ADDED']) && is_array($arOptions['COMPANIES']['ADDED'])
			? $arOptions['COMPANIES']['ADDED'] : array();

		$removedCompanyIDs = isset($arOptions['COMPANIES']['REMOVED']) && is_array($arOptions['COMPANIES']['REMOVED'])
			? $arOptions['COMPANIES']['REMOVED'] : array();

		if(!empty($addedCompanyIDs) || !empty($removedCompanyIDs))
		{
			//region Preparation of company titles
			$dbResult = CCrmCompany::GetListEx(
				array(),
				array(
					'CHECK_PERMISSIONS' => 'N',
					'@ID' => array_merge($addedCompanyIDs, $removedCompanyIDs)
				),
				false,
				false,
				array('ID', 'TITLE')
			);

			$companyTitles = array();
			while ($ary = $dbResult->Fetch())
			{
				$companyTitles[$ary['ID']] = $ary['TITLE'];
			}
			//endregion
			if(count($addedCompanyIDs) <= 1 && count($removedCompanyIDs) <= 1)
			{
				//region Single binding mode
				$arMsg[] = Array(
					'ENTITY_FIELD' => 'COMPANY_ID',
					'EVENT_NAME' => GetMessage('CRM_FIELD_COMPARE_COMPANY_ID'),
					'EVENT_TEXT_1' => CrmCompareFieldsList(
						$companyTitles,
						isset($removedCompanyIDs[0]) ? $removedCompanyIDs[0] : 0
					),
					'EVENT_TEXT_2' => CrmCompareFieldsList(
						$companyTitles,
						isset($addedCompanyIDs[0]) ? $addedCompanyIDs[0] : 0
					)
				);
				//endregion
			}
			else
			{
				//region Multiple binding mode
				//region Add companies event
				$texts = array();
				foreach($addedCompanyIDs as $companyID)
				{
					if(isset($companyTitles[$companyID]))
					{
						$texts[] = $companyTitles[$companyID];
					}
				}

				$arMsg[] = Array(
					'ENTITY_FIELD' => 'COMPANY_ID',
					'EVENT_NAME' => GetMessage('CRM_FIELD_COMPARE_COMPANIES_ADDED'),
					'EVENT_TEXT_1' => implode(', ', $texts),
				);
				//endregion
				//region Remove companies event
				$texts = array();
				foreach($removedCompanyIDs as $companyID)
				{
					if(isset($companyTitles[$companyID]))
					{
						$texts[] = $companyTitles[$companyID];
					}
				}

				$arMsg[] = Array(
					'ENTITY_FIELD' => 'COMPANY_ID',
					'EVENT_NAME' => GetMessage('CRM_FIELD_COMPARE_COMPANIES_REMOVED'),
					'EVENT_TEXT_1' => implode(', ', $texts),
				);
				//endregion
				//endregion
			}
		}
	}

	if (isset($arFieldsOrig['SOURCE_ID']) && isset($arFieldsModif['SOURCE_ID'])
		&& $arFieldsOrig['SOURCE_ID'] != $arFieldsModif['SOURCE_ID'])
	{
		$arStatus = CCrmStatus::GetStatusList('SOURCE');
		$arMsg[] = Array(
			'ENTITY_FIELD' => 'SOURCE_ID',
			'EVENT_NAME' => GetMessage('CRM_FIELD_COMPARE_SOURCE_ID'),
			'EVENT_TEXT_1' => htmlspecialcharsbx(CrmCompareFieldsList($arStatus, $arFieldsOrig['SOURCE_ID'])),
			'EVENT_TEXT_2' => htmlspecialcharsbx(CrmCompareFieldsList($arStatus, $arFieldsModif['SOURCE_ID']))
		);
	}

	if (isset($arFieldsOrig['SOURCE_DESCRIPTION']) && isset($arFieldsModif['SOURCE_DESCRIPTION'])
		&& $arFieldsOrig['SOURCE_DESCRIPTION'] != $arFieldsModif['SOURCE_DESCRIPTION'])
		$arMsg[] = Array(
			'ENTITY_FIELD' => 'SOURCE_DESCRIPTION',
			'EVENT_NAME' => GetMessage('CRM_FIELD_COMPARE_SOURCE_DESCRIPTION'),
			'EVENT_TEXT_1' => !empty($arFieldsOrig['SOURCE_DESCRIPTION'])? $arFieldsOrig['SOURCE_DESCRIPTION']: GetMessage('CRM_FIELD_COMPARE_EMPTY'),
			'EVENT_TEXT_2' => !empty($arFieldsModif['SOURCE_DESCRIPTION'])? $arFieldsModif['SOURCE_DESCRIPTION']: GetMessage('CRM_FIELD_COMPARE_EMPTY'),
		);

	if (isset($arFieldsOrig['TYPE_ID']) && isset($arFieldsModif['TYPE_ID'])
		&& $arFieldsOrig['TYPE_ID'] != $arFieldsModif['TYPE_ID'])
	{
		$arStatus = CCrmStatus::GetStatusList('CONTACT_TYPE');
		$arMsg[] = Array(
			'ENTITY_FIELD' => 'TYPE_ID',
			'EVENT_NAME' => GetMessage('CRM_FIELD_COMPARE_TYPE_ID'),
			'EVENT_TEXT_1' => htmlspecialcharsbx(CrmCompareFieldsList($arStatus, $arFieldsOrig['TYPE_ID'])),
			'EVENT_TEXT_2' => htmlspecialcharsbx(CrmCompareFieldsList($arStatus, $arFieldsModif['TYPE_ID']))
		);
	}

	if (isset($arFieldsOrig['ASSIGNED_BY_ID']) && isset($arFieldsModif['ASSIGNED_BY_ID'])
		&& (int)$arFieldsOrig['ASSIGNED_BY_ID'] != (int)$arFieldsModif['ASSIGNED_BY_ID'])
	{
		$arUser = Array();
		$dbUsers = CUser::GetList(
			'last_name', 'asc',
			array('ID' => implode('|', array(intval($arFieldsOrig['ASSIGNED_BY_ID']), intval($arFieldsModif['ASSIGNED_BY_ID'])))),
			array('FIELDS' => array('ID', 'NAME', 'SECOND_NAME', 'LAST_NAME', 'LOGIN', 'TITLE', 'EMAIL'))
		);
		while ($arRes = $dbUsers->Fetch())
			$arUser[$arRes['ID']] = CUser::FormatName(CSite::GetNameFormat(false), $arRes);

		$arMsg[] = Array(
			'ENTITY_FIELD' => 'ASSIGNED_BY_ID',
			'EVENT_NAME' => GetMessage('CRM_FIELD_COMPARE_ASSIGNED_BY_ID'),
			'EVENT_TEXT_1' => CrmCompareFieldsList($arUser, $arFieldsOrig['ASSIGNED_BY_ID']),
			'EVENT_TEXT_2' => CrmCompareFieldsList($arUser, $arFieldsModif['ASSIGNED_BY_ID'])
		);
	}

	if (isset($arFieldsModif['BIRTHDATE']))
	{
		$origBirthdate = isset($arFieldsOrig['BIRTHDATE']) ? $arFieldsOrig['BIRTHDATE'] : '';
		$modifBirthdate = isset($arFieldsModif['BIRTHDATE']) ? $arFieldsModif['BIRTHDATE'] : '';
		if($origBirthdate !== $modifBirthdate)
		{
			$arMsg[] = Array(
				'ENTITY_FIELD' => 'BIRTHDATE',
				'EVENT_NAME' => GetMessage('CRM_FIELD_COMPARE_BIRTHDATE'),
				'EVENT_TEXT_1' => $origBirthdate !== '' ? $origBirthdate : GetMessage('CRM_FIELD_COMPARE_EMPTY'),
				'EVENT_TEXT_2' => $modifBirthdate !== '' ? $modifBirthdate : GetMessage('CRM_FIELD_COMPARE_EMPTY')
			);
		}
	}

	return $arMsg;
}