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<?php
/*
** Copyright (C) 2001-2025 Zabbix SIA
**
** This program is free software: you can redistribute it and/or modify it under the terms of
** the GNU Affero General Public License as published by the Free Software Foundation, version 3.
**
** This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY;
** without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
** See the GNU Affero General Public License for more details.
**
** You should have received a copy of the GNU Affero General Public License along with this program.
** If not, see <https://www.gnu.org/licenses/>.
**/
/**
* Class containing methods for operations with graph items.
*/
class CGraphItem extends CApiService {
public const ACCESS_RULES = [
'get' => ['min_user_type' => USER_TYPE_ZABBIX_USER]
];
protected $tableName = 'graphs_items';
protected $tableAlias = 'gi';
protected $sortColumns = ['gitemid'];
/**
* Get GraphItems data
*
* @param array $options
* @return array|boolean
*/
public function get($options = []) {
$result = [];
$sqlParts = [
'select' => ['gitems' => 'gi.gitemid'],
'from' => ['graphs_items' => 'graphs_items gi'],
'where' => [],
'order' => [],
'limit' => null
];
$defOptions = [
'graphids' => null,
'itemids' => null,
'type' => null,
'editable' => false,
'nopermissions' => null,
// output
'selectGraphs' => null,
'output' => API_OUTPUT_EXTEND,
'countOutput' => false,
'preservekeys' => false,
'sortfield' => '',
'sortorder' => '',
'limit' => null
];
$options = zbx_array_merge($defOptions, $options);
// editable + PERMISSION CHECK
if (self::$userData['type'] != USER_TYPE_SUPER_ADMIN && !$options['nopermissions']) {
if (self::$userData['ugsetid'] == 0) {
return $options['countOutput'] ? '0' : [];
}
$sqlParts['from'][] = 'items i';
$sqlParts['from'][] = 'host_hgset hh';
$sqlParts['from'][] = 'permission p';
$sqlParts['where'][] = 'gi.itemid=i.itemid';
$sqlParts['where'][] = 'i.hostid=hh.hostid';
$sqlParts['where'][] = 'hh.hgsetid=p.hgsetid';
$sqlParts['where'][] = 'p.ugsetid='.self::$userData['ugsetid'];
if ($options['editable']) {
$sqlParts['where'][] = 'p.permission='.PERM_READ_WRITE;
}
$sqlParts['where'][] = 'NOT EXISTS ('.
'SELECT NULL'.
' FROM graphs_items gi1'.
' JOIN items i1 ON gi1.itemid=i1.itemid'.
' JOIN host_hgset hh1 ON i1.hostid=hh1.hostid'.
' LEFT JOIN permission p1 ON hh1.hgsetid=p1.hgsetid'.
' AND p1.ugsetid=p.ugsetid'.
' WHERE gi.graphid=gi1.graphid'.
' AND p1.permission IS NULL'.
')';
}
// graphids
if (!is_null($options['graphids'])) {
zbx_value2array($options['graphids']);
$sqlParts['from']['graphs'] = 'graphs g';
$sqlParts['where']['gig'] = 'gi.graphid=g.graphid';
$sqlParts['where'][] = dbConditionInt('g.graphid', $options['graphids']);
}
// itemids
if (!is_null($options['itemids'])) {
zbx_value2array($options['itemids']);
$sqlParts['where'][] = dbConditionInt('gi.itemid', $options['itemids']);
}
// type
if (!is_null($options['type'] )) {
$sqlParts['where'][] = 'gi.type='.zbx_dbstr($options['type']);
}
// limit
if (zbx_ctype_digit($options['limit']) && $options['limit']) {
$sqlParts['limit'] = $options['limit'];
}
$sqlParts = $this->applyQueryOutputOptions($this->tableName(), $this->tableAlias(), $options, $sqlParts);
$sqlParts = $this->applyQuerySortOptions($this->tableName(), $this->tableAlias(), $options, $sqlParts);
$dbRes = DBselect(self::createSelectQueryFromParts($sqlParts), $sqlParts['limit']);
while ($gitem = DBfetch($dbRes)) {
if ($options['countOutput']) {
$result = $gitem['rowscount'];
}
else {
$result[$gitem['gitemid']] = $gitem;
}
}
if ($options['countOutput']) {
return $result;
}
if ($result) {
$result = $this->addRelatedObjects($options, $result);
$result = $this->unsetExtraFields($result, ['graphid'], $options['output']);
}
// removing keys (hash -> array)
if (!$options['preservekeys']) {
$result = zbx_cleanHashes($result);
}
return $result;
}
protected function applyQueryOutputOptions($tableName, $tableAlias, array $options, array $sqlParts) {
$sqlParts = parent::applyQueryOutputOptions($tableName, $tableAlias, $options, $sqlParts);
if ($options['selectGraphs'] !== null) {
$sqlParts = $this->addQuerySelect('graphid', $sqlParts);
}
return $sqlParts;
}
protected function addRelatedObjects(array $options, array $result) {
$result = parent::addRelatedObjects($options, $result);
// adding graphs
if ($options['selectGraphs'] !== null && $options['selectGraphs'] != API_OUTPUT_COUNT) {
$relationMap = $this->createRelationMap($result, 'gitemid', 'graphid');
$graphs = API::Graph()->get([
'output' => $options['selectGraphs'],
'gitemids' => $relationMap->getRelatedIds(),
'preservekeys' => true
]);
$result = $relationMap->mapMany($result, $graphs, 'graphs');
}
return $result;
}
}
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