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|
<?php
namespace Icinga\Module\Director\Db;
use Icinga\Module\Director\Objects\IcingaObject;
use Icinga\Module\Director\Resolver\TemplateTree;
use InvalidArgumentException;
use RuntimeException;
use Zend_Db_Select as ZfSelect;
class IcingaObjectFilterHelper
{
const INHERIT_DIRECT = 'direct';
const INHERIT_INDIRECT = 'indirect';
const INHERIT_DIRECT_OR_INDIRECT = 'total';
/**
* @param IcingaObject|int|string $id
* @return int
*/
public static function wantId($id)
{
if (is_int($id)) {
return $id;
} elseif ($id instanceof IcingaObject) {
return (int) $id->get('id');
} elseif (is_string($id) && ctype_digit($id)) {
return (int) $id;
} else {
throw new InvalidArgumentException(sprintf(
'Numeric ID or IcingaObject expected, got %s',
// TODO: just type/class info?
var_export($id, 1)
));
}
}
/**
* @param ZfSelect $query
* @param IcingaObject|int|string $template
* @param string $tableAlias
* @param string $inheritanceType
* @return ZfSelect
*/
public static function filterByTemplate(
ZfSelect $query,
$template,
$tableAlias = 'o',
$inheritanceType = self::INHERIT_DIRECT
) {
$i = $tableAlias . 'i';
$o = $tableAlias;
$type = $template->getShortTableName();
$db = $template->getDb();
$id = static::wantId($template);
$sub = $db->select()->from(
array($i => "icinga_${type}_inheritance"),
array('e' => '(1)')
)->where("$i.${type}_id = $o.id");
if ($inheritanceType === self::INHERIT_DIRECT) {
$sub->where("$i.parent_${type}_id = ?", $id);
} elseif ($inheritanceType === self::INHERIT_INDIRECT
|| $inheritanceType === self::INHERIT_DIRECT_OR_INDIRECT
) {
$tree = new TemplateTree($type, $template->getConnection());
$ids = $tree->listDescendantIdsFor($template);
if ($inheritanceType === self::INHERIT_DIRECT_OR_INDIRECT) {
$ids[] = $template->getAutoincId();
}
if (empty($ids)) {
$sub->where('(1 = 0)');
} else {
$sub->where("$i.parent_${type}_id IN (?)", $ids);
}
} else {
throw new RuntimeException(sprintf(
'Unable to understand "%s" inheritance',
$inheritanceType
));
}
return $query->where('EXISTS ?', $sub);
}
public static function filterByHostgroups(
ZfSelect $query,
$type,
$groups,
$tableAlias = 'o'
) {
if (empty($groups)) {
// Asked for an empty set of groups? Give no result
$query->where('(1 = 0)');
} else {
$sub = $query->getAdapter()->select()->from(
array('go' => "icinga_${type}group_${type}"),
array('e' => '(1)')
)->join(
array('g' => "icinga_${type}group"),
"go.${type}group_id = g.id"
)->where("go.${type}_id = ${tableAlias}.id")
->where('g.object_name IN (?)', $groups);
$query->where('EXISTS ?', $sub);
}
}
public static function filterByResolvedHostgroups(
ZfSelect $query,
$type,
$groups,
$tableAlias = 'o'
) {
if (empty($groups)) {
// Asked for an empty set of groups? Give no result
$query->where('(1 = 0)');
} else {
$sub = $query->getAdapter()->select()->from(
array('go' => "icinga_${type}group_${type}_resolved"),
array('e' => '(1)')
)->join(
array('g' => "icinga_${type}group"),
"go.${type}group_id = g.id",
[]
)->where("go.${type}_id = ${tableAlias}.id")
->where('g.object_name IN (?)', $groups);
$query->where('EXISTS ?', $sub);
}
}
}
|
