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MAX(CHAR_LENGTH(cal_description)) returns NULL, if there are no rows --> casting to int

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This commit is contained in:
Ralf Becker 2012-08-13 13:13:57 +00:00
parent e64013f413
commit 1d519c4834
1 changed files with 2 additions and 1 deletions
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3
calendar/setup/tables_update.inc.php
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@ -2134,7 +2134,8 @@ function calendar_upgrade1_9_005()
{ {
// only alter description to varchar(16384), if it does NOT contain longer input and it can be stored as varchar // only alter description to varchar(16384), if it does NOT contain longer input and it can be stored as varchar
$max_description_length = $GLOBALS['egw']->db->query('SELECT MAX(CHAR_LENGTH(cal_description)) FROM egw_cal')->fetchColumn(); $max_description_length = $GLOBALS['egw']->db->query('SELECT MAX(CHAR_LENGTH(cal_description)) FROM egw_cal')->fetchColumn();
if (is_numeric($max_description_length) && $max_description_length <= 16384 && $GLOBALS['egw_setup']->oProc->max_varchar_length >= 16384) // returns NULL, if there are no rows!
if ((int)$max_description_length <= 16384 && $GLOBALS['egw_setup']->oProc->max_varchar_length >= 16384)
{ {
$GLOBALS['egw_setup']->oProc->AlterColumn('egw_cal','cal_description',array( $GLOBALS['egw_setup']->oProc->AlterColumn('egw_cal','cal_description',array(
'type' => 'varchar', 'type' => 'varchar',