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Allow params "limit" and "page" in REST-API

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PR #25, code author Dennis Lassiter, many thanks !
Was commited to develop first but decided to retrofit this on support/2.5 (N°1449)
(cherry picked from commit fd55bdf9a8)
(cherry picked from commit 49e31ddb3d)
This commit is contained in:
Pierre Goiffon
2019-02-27 09:42:57 +01:00
parent afb99c0f4b
commit e2c8237beb
2 changed files with 28 additions and 3 deletions
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20
core/restservices.class.inc.php
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@@ -436,8 +436,10 @@ class CoreServices implements iRestServiceProvider
$key = RestUtils::GetMandatoryParam($aParams, 'key');
$aShowFields = RestUtils::GetFieldList($sClass, $aParams, 'output_fields');
$bExtendedOutput = (RestUtils::GetOptionalParam($aParams, 'output_fields', '*') == '*+');
$iLimit = (int)RestUtils::GetOptionalParam($aParams, 'limit', 0);
$iPage = (int)RestUtils::GetOptionalParam($aParams, 'page', 1);
$oObjectSet = RestUtils::GetObjectSetFromKey($sClass, $key);
$oObjectSet = RestUtils::GetObjectSetFromKey($sClass, $key, $iLimit, self::getOffsetFromLimitAndPage($iLimit, $iPage));
$sTargetClass = $oObjectSet->GetFilter()->GetClass();
if (UserRights::IsActionAllowed($sTargetClass, UR_ACTION_READ) != UR_ALLOWED_YES)
@@ -450,6 +452,11 @@ class CoreServices implements iRestServiceProvider
$oResult->code = RestResult::UNAUTHORIZED;
$oResult->message = "The current user does not have enough permissions for exporting data of class $sTargetClass";
}
elseif ($iPage < 1)
{
$oResult->code = RestResult::INVALID_PAGE;
$oResult->message = "The request page number is not valid. It must be an integer greater than 0";
}
else
{
while ($oObject = $oObjectSet->Fetch())
@@ -774,4 +781,15 @@ class CoreServices implements iRestServiceProvider
$oResult->message = $sRes;
}
}
/**
* @param int $iLimit
* @param int $iPage
*
* @return int Offset for a given page number
*/
protected static function getOffsetFromLimitAndPage($iLimit, $iPage)
{
return $iLimit * max(0, $iPage - 1);
}
}