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(-)a/installer/data/mysql/atomicupdate/bug_13535_alert_constraint.perl (+16 lines)
Line 0 Link Here
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$DBversion = 'XXX'; # will be replaced by the RM
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if( CheckVersion( $DBversion ) ) {
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    unless ( foreign_key_exists( 'alert', 'alert_ibfk_1' ) ) {
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        $dbh->do(q|
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            DELETE a FROM alert a
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            LEFT JOIN borrowers b ON a.borrowernumber=b.borrowernumber
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            WHERE b.borrowernumber IS NULL
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        |);
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        $dbh->do(
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            qq{
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            ALTER TABLE alert ADD CONSTRAINT alert_ibfk_1 FOREIGN KEY (borrowernumber) REFERENCES borrowers (borrowernumber) ON UPDATE CASCADE ON DELETE CASCADE
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              }
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        );
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    }
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    NewVersion( $DBversion, 13535, "Add FK constraint on borrowernumber to alert table");
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}
(-)a/installer/data/mysql/kohastructure.sql (-2 / +2 lines)
Lines 2841-2847 CREATE TABLE `alert` ( Link Here
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  `externalid` varchar(20) NOT NULL default '',
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  `externalid` varchar(20) NOT NULL default '',
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  PRIMARY KEY  (`alertid`),
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  PRIMARY KEY  (`alertid`),
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  KEY `borrowernumber` (`borrowernumber`),
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  KEY `borrowernumber` (`borrowernumber`),
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  KEY `type` (`type`,`externalid`)
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  KEY `type` (`type`,`externalid`),
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  CONSTRAINT alert_ibfk_1 FOREIGN KEY (borrowernumber) REFERENCES borrowers (borrowernumber) ON UPDATE CASCADE ON DELETE CASCADE
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) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_unicode_ci;
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) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_unicode_ci;
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