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< ? php
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if ( $_POST && ! $error && ! $_POST [ " add " ] && ! $_POST [ " change " ] && ! $_POST [ " change-js " ]) {
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if ( $_POST [ " drop " ]) {
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query_redirect ( " ALTER TABLE " . idf_escape ( $_GET [ " foreign " ]) . " \n DROP FOREIGN KEY " . idf_escape ( $_GET [ " name " ]), $SELF . " table= " . urlencode ( $_GET [ " foreign " ]), lang ( 'Foreign key has been dropped.' ));
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} else {
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$source = array_filter ( $_POST [ " source " ], 'strlen' );
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ksort ( $source ); // enforce input order
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$target = array ();
foreach ( $source as $key => $val ) {
$target [ $key ] = $_POST [ " target " ][ $key ];
}
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query_redirect ( " ALTER TABLE " . idf_escape ( $_GET [ " foreign " ])
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. ( strlen ( $_GET [ " name " ]) ? " \n DROP FOREIGN KEY " . idf_escape ( $_GET [ " name " ]) . " , " : " " )
. " \n ADD FOREIGN KEY ( " . implode ( " , " , array_map ( 'idf_escape' , $source )) . " ) REFERENCES " . idf_escape ( $_POST [ " table " ]) . " ( " . implode ( " , " , array_map ( 'idf_escape' , $target )) . " ) "
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. ( in_array ( $_POST [ " on_delete " ], $on_actions ) ? " ON DELETE $_POST[on_delete] " : " " )
. ( in_array ( $_POST [ " on_update " ], $on_actions ) ? " ON UPDATE $_POST[on_update] " : " " )
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, $SELF . " table= " . urlencode ( $_GET [ " foreign " ]), ( strlen ( $_GET [ " name " ]) ? lang ( 'Foreign key has been altered.' ) : lang ( 'Foreign key has been created.' )));
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$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 exists.' ) . " <br> $error " ;
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}
}
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page_header ( lang ( 'Foreign key' ), $error , array ( " table " => $_GET [ " foreign " ]), $_GET [ " foreign " ]);
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if ( $_POST ) {
$row = $_POST ;
ksort ( $row [ " source " ]);
if ( $_POST [ " add " ]) {
$row [ " source " ][] = " " ;
} elseif ( $_POST [ " change " ] || $_POST [ " change-js " ]) {
$row [ " target " ] = array ();
}
} elseif ( strlen ( $_GET [ " name " ])) {
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$foreign_keys = foreign_keys ( $_GET [ " foreign " ]);
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$row = $foreign_keys [ $_GET [ " name " ]];
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$row [ " source " ][] = " " ;
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} else {
$row = array ( " table " => $_GET [ " foreign " ], " source " => array ( " " ));
}
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$source = get_vals ( " SHOW COLUMNS FROM " . idf_escape ( $_GET [ " foreign " ])); //! no text and blob
$target = ( $_GET [ " foreign " ] === $row [ " table " ] ? $source : get_vals ( " SHOW COLUMNS FROM " . idf_escape ( $row [ " table " ])));
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?>
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< form action = " " method = " post " >
< p >
< ? php echo lang ( 'Target table' ); ?> :
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< select name = " table " onchange = " this.form['change-js'].value = '1'; this.form.submit(); " >< ? php echo optionlist ( array_keys ( table_status_referencable ()), $row [ " table " ]); ?> </select>
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< input type = " hidden " name = " change-js " value = " " >
< noscript >< p >< input type = " submit " name = " change " value = " <?php echo lang('Change'); ?> " ></ noscript >
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< table cellspacing = " 0 " >
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< thead >< tr >< th >< ? php echo lang ( 'Source' ); ?> <th><?php echo lang('Target'); ?></thead>
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< ? php
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$j = 0 ;
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foreach ( $row [ " source " ] as $key => $val ) {
echo " <tr> " ;
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echo " <td><select name='source[ " . intval ( $key ) . " ]' " . ( $j == count ( $row [ " source " ]) - 1 ? " onchange='foreign_add_row(this);' " : " " ) . " ><option> " . optionlist ( $source , $val ) . " </select> " ;
echo " <td><select name='target[ " . intval ( $key ) . " ]'> " . optionlist ( $target , $row [ " target " ][ $key ]) . " </select> " ;
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$j ++ ;
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}
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?>
</ table >
< p >
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< ? php echo lang ( 'ON DELETE' ); ?> : <select name="on_delete"><option><?php echo optionlist($on_actions, $row["on_delete"]); ?></select>
< ? php echo lang ( 'ON UPDATE' ); ?> : <select name="on_update"><option><?php echo optionlist($on_actions, $row["on_update"]); ?></select>
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< p >
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< input type = " hidden " name = " token " value = " <?php echo $token ; ?> " >
< input type = " submit " value = " <?php echo lang('Save'); ?> " >
< ? php if ( strlen ( $_GET [ " name " ])) { ?> <input type="submit" name="drop" value="<?php echo lang('Drop'); ?>"<?php echo $confirm; ?>><?php } ?>
< noscript >< p >< input type = " submit " name = " add " value = " <?php echo lang('Add column'); ?> " ></ noscript >
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</ form >