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< ? php
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$TABLE = $_GET [ " foreign " ];
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$name = $_GET [ " name " ];
$row = $_POST ;
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if ( $_POST && ! $error && ! $_POST [ " add " ] && ! $_POST [ " change " ] && ! $_POST [ " change-js " ]) {
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$message = ( $_POST [ " drop " ] ? lang ( 'Foreign key has been dropped.' ) : ( $name != " " ? lang ( 'Foreign key has been altered.' ) : lang ( 'Foreign key has been created.' )));
$location = ME . " table= " . urlencode ( $TABLE );
$row [ " source " ] = array_filter ( $row [ " source " ], 'strlen' );
ksort ( $row [ " source " ]); // enforce input order
$target = array ();
foreach ( $row [ " source " ] as $key => $val ) {
$target [ $key ] = $row [ " target " ][ $key ];
}
$row [ " target " ] = $target ;
if ( $jush == " sqlite " ) {
queries_redirect ( $location , $message , recreate_table ( $TABLE , $TABLE , array (), array (), array ( " $name " => ( $_POST [ " drop " ] ? " " : " " . format_foreign_key ( $row )))));
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} else {
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$alter = " ALTER TABLE " . table ( $TABLE );
$drop = " \n DROP " . ( $jush == " sql " ? " FOREIGN KEY " : " CONSTRAINT " ) . idf_escape ( $name );
if ( $_POST [ " drop " ]) {
query_redirect ( $alter . $drop , $location , $message );
} else {
query_redirect ( $alter . ( $name != " " ? " $drop , " : " " ) . " \n ADD " . format_foreign_key ( $row ), $location , $message );
$error = lang ( 'Source and target columns must have the same data type, there must be an index on the target columns and referenced data must exist.' ) . " <br> $error " ; //! no partitioning
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}
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}
}
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page_header ( lang ( 'Foreign key' ), $error , array ( " table " => $TABLE ), h ( $TABLE ));
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if ( $_POST ) {
ksort ( $row [ " source " ]);
if ( $_POST [ " add " ]) {
$row [ " source " ][] = " " ;
} elseif ( $_POST [ " change " ] || $_POST [ " change-js " ]) {
$row [ " target " ] = array ();
}
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} elseif ( $name != " " ) {
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$foreign_keys = foreign_keys ( $TABLE );
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$row = $foreign_keys [ $name ];
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$row [ " source " ][] = " " ;
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} else {
$row [ " table " ] = $TABLE ;
$row [ " source " ] = array ( " " );
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}
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$source = array_keys ( fields ( $TABLE )); //! no text and blob
$target = ( $TABLE === $row [ " table " ] ? $source : array_keys ( fields ( $row [ " table " ])));
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$referencable = array_keys ( array_filter ( table_status ( '' , true ), 'fk_support' ));
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?>
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< form action = " " method = " post " >
< p >
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< ? php if ( $row [ " db " ] == " " && $row [ " ns " ] == " " ) { ?>
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< ? php echo lang ( 'Target table' ); ?> :
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< ? php echo html_select ( " table " , $referencable , $row [ " table " ], " this.form['change-js'].value = '1'; this.form.submit(); " ); ?>
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< input type = " hidden " name = " change-js " value = " " >
< noscript >< p >< input type = " submit " name = " change " value = " <?php echo lang('Change'); ?> " ></ noscript >
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< table cellspacing = " 0 " >
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< thead >< tr >< th id = " label-source " >< ? php echo lang ( 'Source' ); ?> <th id="label-target"><?php echo lang('Target'); ?></thead>
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< ? php
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$j = 0 ;
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foreach ( $row [ " source " ] as $key => $val ) {
echo " <tr> " ;
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echo " <td> " . html_select ( " source[ " . ( + $key ) . " ] " , array ( - 1 => " " ) + $source , $val , ( $j == count ( $row [ " source " ]) - 1 ? " foreignAddRow(this); " : 1 ), " label-source " );
echo " <td> " . html_select ( " target[ " . ( + $key ) . " ] " , $target , $row [ " target " ][ $key ], 1 , " label-target " );
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$j ++ ;
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}
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?>
</ table >
< p >
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< ? php echo lang ( 'ON DELETE' ); ?> : <?php echo html_select("on_delete", array(-1 => "") + explode("|", $on_actions), $row["on_delete"]); ?>
< ? php echo lang ( 'ON UPDATE' ); ?> : <?php echo html_select("on_update", array(-1 => "") + explode("|", $on_actions), $row["on_update"]); ?>
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< ? php echo doc_link ( array (
'sql' => " innodb-foreign-key-constraints.html " ,
'pgsql' => " sql-createtable.html#SQL-CREATETABLE-REFERENCES " ,
'mssql' => " ms174979.aspx " ,
'oracle' => " clauses002.htm#sthref2903 " ,
)); ?>
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< p >
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< input type = " submit " value = " <?php echo lang('Save'); ?> " >
< noscript >< p >< input type = " submit " name = " add " value = " <?php echo lang('Add column'); ?> " ></ noscript >
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< ? php } ?>
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< ? php if ( $name != " " ) { ?> <input type="submit" name="drop" value="<?php echo lang('Drop'); ?>"<?php echo confirm(); ?>><?php } ?>
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< input type = " hidden " name = " token " value = " <?php echo $token ; ?> " >
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</ form >