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<?php
/**
* Bitrix Framework
* @package bitrix
* @subpackage learning
* @copyright 2001-2013 Bitrix
*/
/*
$arFields:
ID int(11) unsigned not null auto_increment,
ACTIVE char(1) not null default 'Y',
TITLE varchar(255) not null default ' ',
CODE varchar(50) NULL DEFAULT NULL,
SORT int(11) not null default '500',
ACTIVE_FROM datetime,
ACTIVE_TO datetime,
COURSE_LESSON_ID INT NOT NULL,
PRIMARY KEY(ID)
*/
class CLearningGroup
{
/**
* Creates new learning group
*
* @param array $arFields
*
* @return mixed (int) id of just created group OR (bool) false on error
*/
public static function add($arFields)
{
global $DB, $USER_FIELD_MANAGER, $APPLICATION;
if (is_set($arFields, "ACTIVE") && $arFields["ACTIVE"] != "Y")
$arFields["ACTIVE"] = "N";
if ( ! self::CheckFields($arFields) )
return false;
if ( ! $USER_FIELD_MANAGER->CheckFields("LEARNING_LGROUPS", 0, $arFields) )
return (false);
if (array_key_exists('ID', $arFields))
unset($arFields['ID']);
foreach(GetModuleEvents('learning', 'OnBeforeLearningGroupAdd', true) as $arEvent)
{
if (ExecuteModuleEventEx($arEvent, array(&$arFields)) === false)
{
IncludeModuleLangFile(__FILE__);
$errmsg = GetMessage("LEARNING_GROUP_ADD_UNKNOWN_ERROR");
$errno = 'LEARNING_GROUP_ADD_UNKNOWN_ERROR';
if ($ex = $APPLICATION->getException())
{
$errmsg = $ex->getString();
$errno = $ex->getId();
}
$e = new CAdminException(array('text' => $errmsg, 'id' => $errno));
$APPLICATION->ThrowException($e);
return false;
}
}
$id = $DB->Add("b_learn_groups", $arFields, array(), "learning");
if ($id)
$USER_FIELD_MANAGER->Update("LEARNING_LGROUPS", $id, $arFields);
if ($id > 0 && defined("BX_COMP_MANAGED_CACHE"))
{
global $CACHE_MANAGER;
$CACHE_MANAGER->ClearByTag('LEARNING_GROUP_' . (int) ($id / 100));
$CACHE_MANAGER->ClearByTag('LEARNING_GROUP');
}
foreach(GetModuleEvents('learning', 'OnAfterLearningGroupAdd', true) as $arEvent)
ExecuteModuleEventEx($arEvent, array($id, &$arFields));
return ($id);
}
/**
* Updates existing learning group
*
* @param int $id
* @param array $arFields
*
* @return bool false on error, or true - if no errors detected
*/
public static function update($id, $arFields)
{
global $DB, $USER_FIELD_MANAGER, $APPLICATION;
$id = (int) $id;
if ($id < 1)
return (false);
if (is_set($arFields, "ACTIVE") && $arFields["ACTIVE"] != "Y")
$arFields["ACTIVE"] = "N";
if ( ! self::CheckFields($arFields, $id) )
return false;
if ( ! $USER_FIELD_MANAGER->CheckFields("LEARNING_LGROUPS", $id, $arFields) )
return (false);
if (array_key_exists('ID', $arFields))
unset($arFields['ID']);
foreach(GetModuleEvents('learning', 'OnBeforeLearningGroupUpdate', true) as $arEvent)
{
if (ExecuteModuleEventEx($arEvent, array($id, &$arFields)) === false)
{
IncludeModuleLangFile(__FILE__);
$errmsg = GetMessage("LEARNING_GROUP_UPDATE_UNKNOWN_ERROR");
$errno = 'LEARNING_GROUP_UPDATE_UNKNOWN_ERROR';
if ($ex = $APPLICATION->getException())
{
$errmsg = $ex->getString();
$errno = $ex->getId();
}
$e = new CAdminException(array('text' => $errmsg, 'id' => $errno));
$APPLICATION->ThrowException($e);
return false;
}
}
$USER_FIELD_MANAGER->Update('LEARNING_LGROUPS', $id, $arFields);
$strUpdate = $DB->PrepareUpdate("b_learn_groups", $arFields, "learning");
$strSql = "UPDATE b_learn_groups SET " . $strUpdate . " WHERE ID=" . $id;
$rc = $DB->queryBind($strSql, $arBinds = array(), $bIgnoreErrors = true);
if (defined("BX_COMP_MANAGED_CACHE"))
{
global $CACHE_MANAGER;
$CACHE_MANAGER->ClearByTag('LEARNING_GROUP_' . (int) ($id / 100));
$CACHE_MANAGER->ClearByTag('LEARNING_GROUP');
}
foreach(GetModuleEvents('learning', 'OnAfterLearningGroupUpdate', true) as $arEvent)
ExecuteModuleEventEx($arEvent, array($id, &$arFields));
return ($rc !== false);
}
/**
* Get list of existing learning groups
*
* @param array $arOrder
* @param array $arFilter
* @param array $arSelect
* @param array $arNavParams
*
* @return CDBResult
*/
public static function getList($arOrder, $arFilter, $arSelect = array(), $arNavParams = array())
{
global $DB, $USER, $USER_FIELD_MANAGER;
$obUserFieldsSql = new CUserTypeSQL();
$obUserFieldsSql->SetEntity("LEARNING_LGROUPS", "LG.ID");
$obUserFieldsSql->SetSelect($arSelect);
$obUserFieldsSql->SetFilter($arFilter);
$obUserFieldsSql->SetOrder($arOrder);
$arFields = array(
'ID' => 'LG.ID',
'TITLE' => 'LG.TITLE',
'ACTIVE' => 'LG.ACTIVE',
'CODE' => 'LG.CODE',
'SORT' => 'LG.SORT',
'ACTIVE_FROM' => $DB->DateToCharFunction('LG.ACTIVE_FROM', 'FULL'),
'ACTIVE_TO' => $DB->DateToCharFunction('LG.ACTIVE_TO', 'FULL'),
'COURSE_LESSON_ID' => 'LG.COURSE_LESSON_ID',
'COURSE_TITLE' => 'LL.NAME',
'MEMBER_ID' => 'LGM.USER_ID'
);
$arFieldsSort = $arFields;
$arFieldsSort["ACTIVE_FROM"] = "LG.ACTIVE_FROM";
$arFieldsSort["ACTIVE_TO"] = "LG.ACTIVE_TO";
if (count($arSelect) <= 0 || in_array("*", $arSelect))
$arSelect = array_diff(array_keys($arFields), array('MEMBER_ID'));
elseif (!in_array("ID", $arSelect))
$arSelect[] = "ID";
if (!is_array($arOrder))
$arOrder = array();
foreach ($arOrder as $by => $order)
{
$by = (string) $by;
$byUppercase = strtoupper($by);
$needle = null;
$order = strtolower($order);
if ($order != "asc")
$order = "desc";
if (array_key_exists($byUppercase, $arFieldsSort))
{
$arSqlOrder[] = ' ' . $arFieldsSort[$byUppercase] . ' ' . $order . ' ';
$needle = $byUppercase;
}
elseif ($s = $obUserFieldsSql->getOrder(strtolower($by)))
$arSqlOrder[] = ' ' . $s . ' ' . $order . ' ';
if (
($needle !== null)
&& ( ! in_array($needle, $arSelect, true) )
)
{
$arSelect[] = $needle;
}
}
if (
array_key_exists('MEMBER_ID', $arFilter)
&& ( ! in_array('MEMBER_ID', $arSelect, true) )
)
{
$arSelect[] = 'MEMBER_ID';
}
$arSqlSelect = array();
foreach ($arSelect as $field)
{
$field = strtoupper($field);
if (array_key_exists($field, $arFields))
$arSqlSelect[$field] = $arFields[$field] . ' AS ' . $field;
}
if (!sizeof($arSqlSelect))
$arSqlSelect = 'LG.ID AS ID';
$arSqlSearch = self::getFilter($arFilter);
$r = $obUserFieldsSql->GetFilter();
if (strlen($r) > 0)
$arSqlSearch[] = "(".$r.")";
$strSql = "
SELECT
".implode(",\n", $arSqlSelect)."
".$obUserFieldsSql->GetSelect();
$strFrom = "
FROM
b_learn_groups LG
";
if (in_array('COURSE_TITLE', $arSelect, true))
$strFrom .= "LEFT OUTER JOIN b_learn_lesson LL ON LL.ID = LG.COURSE_LESSON_ID \n" ;
if (in_array('MEMBER_ID', $arSelect, true))
$strFrom .= "LEFT JOIN b_learn_groups_member LGM ON LGM.LEARNING_GROUP_ID = LG.ID \n" ;
$strFrom .= $obUserFieldsSql->GetJoin("LG.ID") . " "
. (sizeof($arSqlSearch) ? " WHERE " . implode(" AND ", $arSqlSearch) : "") . " ";
$strSql .= $strFrom;
$strSqlOrder = "";
DelDuplicateSort($arSqlOrder);
for ($i = 0, $arSqlOrderCnt = count($arSqlOrder); $i < $arSqlOrderCnt; $i++)
{
if ($i == 0)
$strSqlOrder = " ORDER BY ";
else
$strSqlOrder .= ",";
$strSqlOrder .= $arSqlOrder[$i];
}
$strSql .= $strSqlOrder;
if (count($arNavParams))
{
if (isset($arNavParams['nTopCount']))
{
$strSql = $DB->TopSql($strSql, (int) $arNavParams['nTopCount']);
$res = $DB->Query($strSql, $bIgnoreErrors = false, "File: " . __FILE__ . "<br>Line: " . __LINE__);
$res->SetUserFields($USER_FIELD_MANAGER->GetUserFields("LEARNING_LGROUPS"));
}
else
{
$res_cnt = $DB->Query("SELECT COUNT(LG.ID) as C " . $strFrom);
$res_cnt = $res_cnt->Fetch();
$res = new CDBResult();
$res->SetUserFields($USER_FIELD_MANAGER->GetUserFields("LEARNING_LGROUPS"));
$rc = $res->NavQuery($strSql, $res_cnt["C"], $arNavParams, $bIgnoreErrors = false, "File: " . __FILE__ . "<br>Line: " . __LINE__);
}
}
else
{
$res = $DB->Query($strSql, $bIgnoreErrors = false, "File: " . __FILE__ . "<br>Line: " . __LINE__);
$res->SetUserFields($USER_FIELD_MANAGER->GetUserFields("LEARNING_LGROUPS"));
}
return $res;
}
/**
* Removes existing learning group
*
* @param int $groupId
*
* @return bool false on error, or true - if no errors detected
*/
public static function delete($groupId)
{
global $DB, $APPLICATION, $USER_FIELD_MANAGER;
foreach(GetModuleEvents('learning', 'OnBeforeLearningGroupDelete', true) as $arEvent)
{
if (ExecuteModuleEventEx($arEvent, array($groupId)) === false)
{
IncludeModuleLangFile(__FILE__);
$errmsg = GetMessage("LEARNING_GROUP_DELETE_UNKNOWN_ERROR");
$errno = 'LEARNING_GROUP_DELETE_UNKNOWN_ERROR';
if ($ex = $APPLICATION->getException())
{
$errmsg = $ex->getString();
$errno = $ex->getId();
}
$e = new CAdminException(array('text' => $errmsg, 'id' => $errno));
$APPLICATION->ThrowException($e);
return false;
}
}
$rc = $DB->Query(
"DELETE FROM b_learn_groups WHERE ID = " . (int) $groupId,
$bIgnoreErrors = true
);
if (defined("BX_COMP_MANAGED_CACHE"))
{
global $CACHE_MANAGER;
$CACHE_MANAGER->ClearByTag('LEARNING_GROUP_' . (int) ($groupId / 100));
$CACHE_MANAGER->ClearByTag('LEARNING_GROUP');
}
$USER_FIELD_MANAGER->delete('LEARNING_LGROUPS', $groupId);
CEventLog::add(array(
'AUDIT_TYPE_ID' => 'LEARNING_REMOVE_ITEM',
'MODULE_ID' => 'learning',
'ITEM_ID' => 'LG #' . $groupId,
'DESCRIPTION' => 'learning group removed'
));
foreach(GetModuleEvents('learning', 'OnAfterLearningGroupDelete', true) as $arEvent)
ExecuteModuleEventEx($arEvent, array($groupId));
return ($rc !== false);
}
private static function CheckFields($arFields, $id = false)
{
global $DB;
$arMsg = array();
if ( (is_set($arFields, "TITLE") || $id === false) && strlen(trim($arFields["TITLE"])) <= 0)
$arMsg[] = array("id"=>"TITLE", "text"=> GetMessage("LEARNING_BAD_NAME"));
if (is_set($arFields, "ACTIVE_FROM") && strlen($arFields["ACTIVE_FROM"])>0 && (!$DB->IsDate($arFields["ACTIVE_FROM"], false, LANG, "FULL")))
$arMsg[] = array("id"=>"ACTIVE_FROM", "text"=> GetMessage("LEARNING_BAD_ACTIVE_FROM"));
if (is_set($arFields, "ACTIVE_TO") && strlen($arFields["ACTIVE_TO"])>0 && (!$DB->IsDate($arFields["ACTIVE_TO"], false, LANG, "FULL")))
$arMsg[] = array("id"=>"ACTIVE_TO", "text"=> GetMessage("LEARNING_BAD_ACTIVE_TO"));
if ($id === false)
{
if (!array_key_exists('COURSE_LESSON_ID', $arFields) || intval($arFields["COURSE_LESSON_ID"]) < 1)
{
$arMsg[] = array("id"=>"COURSE_LESSON_ID", "text"=> GetMessage("LEARNING_BAD_COURSE_ID"));
}
}
if(!empty($arMsg))
{
$e = new CAdminException($arMsg);
$GLOBALS["APPLICATION"]->ThrowException($e);
return false;
}
return true;
}
private static function getFilter($arFilter)
{
global $DB;
if (!is_array($arFilter))
$arFilter = Array();
$arSqlSearch = Array();
foreach ($arFilter as $key => $val)
{
$res = CLearnHelper::MkOperationFilter($key);
$key = $res["FIELD"];
$cOperationType = $res["OPERATION"];
$key = strtoupper($key);
switch ($key)
{
case 'ID':
case 'SORT':
case 'COURSE_LESSON_ID':
$arSqlSearch[] = CLearnHelper::FilterCreate('LG.' . $key, $val, 'number', $bFullJoin, $cOperationType);
break;
case 'ACTIVE':
$arSqlSearch[] = CLearnHelper::FilterCreate('LG.' . $key, $val, 'string_equal', $bFullJoin, $cOperationType);
break;
case 'ACTIVE_FROM':
case 'ACTIVE_TO':
if ($val !== null)
$arSqlSearch[] = CLearnHelper::FilterCreate('LG.' . $key, $val, 'date', $bFullJoin, $cOperationType);
break;
case "ACTIVE_DATE":
if(strlen($val) > 0)
{
$arSqlSearch[] = ($cOperationType == "N" ? " NOT" : "")
. "((LG.ACTIVE_TO >= " . $DB->GetNowFunction()
." OR LG.ACTIVE_TO IS NULL) AND (LG.ACTIVE_FROM <= " . $DB->GetNowFunction()
. " OR LG.ACTIVE_FROM IS NULL))";
}
break;
case 'TITLE':
case 'CODE':
$arSqlSearch[] = CLearnHelper::FilterCreate("LG." . $key, $val, "string", $bFullJoin, $cOperationType);
break;
case 'COURSE_TITLE':
$arSqlSearch[] = CLearnHelper::FilterCreate("LL.NAME", $val, "string", $bFullJoin, $cOperationType);
break;
case 'MEMBER_ID':
$arSqlSearch[] = CLearnHelper::FilterCreate('LGM.USER_ID', intval($val), 'number', $bFullJoin, $cOperationType);
break;
default:
if (substr($key, 0, 3) !== 'UF_')
{
throw new LearnException(
'Unknown field: ' . $key,
LearnException::EXC_ERR_ALL_PARAMS
);
}
break;
}
}
return array_filter($arSqlSearch);
}
}
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