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tbl_relation.php
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<?php
/* $Id$ */
// vim: expandtab sw=4 ts=4 sts=4:
/**
* Gets some core libraries
*/
require_once('./libraries/grab_globals.lib.php');
require_once('./libraries/common.lib.php');
require_once('./tbl_properties_common.php');
$url_query .= '&goto=tbl_properties.php';
/**
* Gets tables informations
*/
require('./tbl_properties_table_info.php');
// Note: in tbl_properties_links.php we get and display the table comment.
// For InnoDB, this comment contains the REFER information but any update
// has not been done yet (will be done in tbl_relation.php later).
$avoid_show_comment = TRUE;
/**
* Displays top menu links
*/
require('./tbl_properties_links.php');
require_once('./libraries/relation.lib.php');
$options_array = array('CASCADE' => 'CASCADE', 'SET_NULL' => 'SET NULL', 'NO_ACTION' => 'NO ACTION', 'RESTRICT' => 'RESTRICT');
/**
* Generate dropdown choices
*
* @param string Message to display
* @param string Name of the <select> field
* @param array Choices for dropdown
* @return string The existing value (for selected)
*
* @access public
*/
function PMA_generate_dropdown($dropdown_question,$radio_name,$choices,$selected_value) {
global $font_smallest;
echo $dropdown_question . ' ';
//echo '<select name="' . $radio_name . '" style="font-size: ' . $font_smallest . '">' . "\n";
//echo '<option value="nix" style="font-size: ' . $font_smallest . '" >--</option>' . "\n";
echo '<select name="' . $radio_name . '">' . "\n";
echo '<option value="nix">--</option>' . "\n";
foreach ($choices AS $one_value => $one_label) {
echo '<option value="' . $one_value . '"';
if ($selected_value == $one_value) {
echo ' selected="selected" ';
}
//echo ' style="font-size: ' . $font_smallest . '">'
echo '>' . $one_label . '</option>' . "\n";
}
echo '</select>' . "\n";
echo "\n";
}
/**
* Gets the relation settings
*/
$cfgRelation = PMA_getRelationsParam();
/**
* Updates
*/
// ensure we are positionned to our current db (since the previous reading
// of relations makes pmadb the current one, maybe depending on the MySQL version)
PMA_DBI_select_db($db);
if ($cfgRelation['relwork']) {
$existrel = PMA_getForeigners($db, $table, '', 'internal');
}
if ($tbl_type=='INNODB') {
$existrel_innodb = PMA_getForeigners($db, $table, '', 'innodb');
}
if ($cfgRelation['displaywork']) {
$disp = PMA_getDisplayField($db, $table);
}
// updates for internal relations or innodb?
if (isset($submit_rel) && $submit_rel == 'true') {
// u p d a t e s f o r I n t e r n a l r e l a t i o n s
if ($cfgRelation['relwork']) {
foreach ($destination AS $master_field => $foreign_string) {
if ($foreign_string != 'nix') {
list($foreign_db, $foreign_table, $foreign_field) = explode('.', $foreign_string);
if (!isset($existrel[$master_field])) {
$upd_query = 'INSERT INTO ' . PMA_backquote($cfgRelation['relation'])
. '(master_db, master_table, master_field, foreign_db, foreign_table, foreign_field)'
. ' values('
. '\'' . PMA_sqlAddslashes($db) . '\', '
. '\'' . PMA_sqlAddslashes($table) . '\', '
. '\'' . PMA_sqlAddslashes($master_field) . '\', '
. '\'' . PMA_sqlAddslashes($foreign_db) . '\', '
. '\'' . PMA_sqlAddslashes($foreign_table) . '\','
. '\'' . PMA_sqlAddslashes($foreign_field) . '\')';
} else if ($existrel[$master_field]['foreign_db'] . '.' .$existrel[$master_field]['foreign_table'] . '.' . $existrel[$master_field]['foreign_field'] != $foreign_string) {
$upd_query = 'UPDATE ' . PMA_backquote($cfgRelation['relation']) . ' SET'
. ' foreign_db = \'' . PMA_sqlAddslashes($foreign_db) . '\', '
. ' foreign_table = \'' . PMA_sqlAddslashes($foreign_table) . '\', '
. ' foreign_field = \'' . PMA_sqlAddslashes($foreign_field) . '\' '
. ' WHERE master_db = \'' . PMA_sqlAddslashes($db) . '\''
. ' AND master_table = \'' . PMA_sqlAddslashes($table) . '\''
. ' AND master_field = \'' . PMA_sqlAddslashes($master_field) . '\'';
} // end if... else....
} else if (isset($existrel[$master_field])) {
$upd_query = 'DELETE FROM ' . PMA_backquote($cfgRelation['relation'])
. ' WHERE master_db = \'' . PMA_sqlAddslashes($db) . '\''
. ' AND master_table = \'' . PMA_sqlAddslashes($table) . '\''
. ' AND master_field = \'' . PMA_sqlAddslashes($master_field) . '\'';
} // end if... else....
if (isset($upd_query)) {
$upd_rs = PMA_query_as_cu($upd_query);
unset($upd_query);
}
} // end while
} // end if (updates for internal relations)
// u p d a t e s f o r I n n o D B
// ( for now, one index name only; we keep the definitions if the
// foreign db is not the same)
if (isset($destination_innodb)) {
foreach ($destination_innodb AS $master_field => $foreign_string) {
if ($foreign_string != 'nix') {
list($foreign_db, $foreign_table, $foreign_field) = explode('.', $foreign_string);
if (!isset($existrel_innodb[$master_field])) {
// no key defined for this field
// The next few lines are repeated below, so they
// could be put in an include file
// Note: I tried to enclose the db and table name with
// backquotes but MySQL 4.0.16 did not like the syntax
// (for example: `base2`.`table1` )
$upd_query = 'ALTER TABLE ' . PMA_backquote($table)
. ' ADD FOREIGN KEY ('
. PMA_backquote(PMA_sqlAddslashes($master_field)) . ')'
. ' REFERENCES '
. PMA_backquote(PMA_sqlAddslashes($foreign_db) . '.'
. PMA_sqlAddslashes($foreign_table)) . '('
. PMA_backquote(PMA_sqlAddslashes($foreign_field)) . ')';
if (${$master_field . '_on_delete'} != 'nix') {
$upd_query .= ' ON DELETE ' . $options_array[${$master_field . '_on_delete'}];
}
if (${$master_field . '_on_update'} != 'nix') {
$upd_query .= ' ON UPDATE ' . $options_array[${$master_field . '_on_update'}];
}
// end repeated code
} else if (($existrel_innodb[$master_field]['foreign_db'] . '.' .$existrel_innodb[$master_field]['foreign_table'] . '.' . $existrel_innodb[$master_field]['foreign_field'] != $foreign_string)
|| ( ${$master_field . '_on_delete'} != (!empty($existrel_innodb[$master_field]['on_delete']) ? $existrel_innodb[$master_field]['on_delete'] : ''))
|| ( ${$master_field . '_on_update'} != (!empty($existrel_innodb[$master_field]['on_update']) ? $existrel_innodb[$master_field]['on_update'] : ''))
) {
// another foreign key is already defined for this field
// or
// an option has been changed for ON DELETE or ON UPDATE
// remove existing key
if (PMA_MYSQL_INT_VERSION >= 40013) {
$upd_query = 'ALTER TABLE ' . PMA_backquote($table)
. ' DROP FOREIGN KEY '
. PMA_backquote($existrel_innodb[$master_field]['constraint']);
// I tried to send both in one query but it failed
$upd_rs = PMA_DBI_query($upd_query);
}
// add another
$upd_query = 'ALTER TABLE ' . PMA_backquote($table)
. ' ADD FOREIGN KEY ('
. PMA_backquote(PMA_sqlAddslashes($master_field)) . ')'
. ' REFERENCES '
. PMA_backquote(PMA_sqlAddslashes($foreign_db) . '.'
. PMA_sqlAddslashes($foreign_table)) . '('
. PMA_backquote(PMA_sqlAddslashes($foreign_field)) . ')';
if (${$master_field . '_on_delete'} != 'nix') {
$upd_query .= ' ON DELETE ' . $options_array[${$master_field . '_on_delete'}];
}
if (${$master_field . '_on_update'} != 'nix') {
$upd_query .= ' ON UPDATE ' . $options_array[${$master_field . '_on_update'}];
}
} // end if... else....
} else if (isset($existrel_innodb[$master_field])) {
if (PMA_MYSQL_INT_VERSION >= 40013) {
$upd_query = 'ALTER TABLE ' . PMA_backquote($table)
. ' DROP FOREIGN KEY '
. PMA_backquote($existrel_innodb[$master_field]['constraint']);
}
} // end if... else....
if (isset($upd_query)) {
$upd_rs = PMA_DBI_try_query($upd_query);
$tmp_error = PMA_DBI_getError();
if (substr($tmp_error, 1, 4) == '1216') {
PMA_mysqlDie($tmp_error, $upd_query, FALSE, '', FALSE);
echo PMA_showMySQLDocu('manual_Table_types', 'InnoDB_foreign_key_constraints') . "\n";
}
if (substr($tmp_error, 1, 4) == '1005') {
echo '<p class="warning">' . $strNoIndex . ' (' . $master_field .')</p>' . PMA_showMySQLDocu('manual_Table_types', 'InnoDB_foreign_key_constraints') . "\n";
}
unset($upd_query);
unset($tmp_error);
}
} // end while
} // end if isset($destination_innodb)
} // end if (updates for internal relations or InnoDB)
// U p d a t e s f o r d i s p l a y f i e l d
if ($cfgRelation['displaywork']
&& isset($submit_show) && $submit_show == 'true') {
if ($disp) {
if ($display_field != '') {
$upd_query = 'UPDATE ' . PMA_backquote($cfgRelation['table_info'])
. ' SET display_field = \'' . PMA_sqlAddslashes($display_field) . '\''
. ' WHERE db_name = \'' . PMA_sqlAddslashes($db) . '\''
. ' AND table_name = \'' . PMA_sqlAddslashes($table) . '\'';
} else {
$upd_query = 'DELETE FROM ' . PMA_backquote($cfgRelation['table_info'])
. ' WHERE db_name = \'' . PMA_sqlAddslashes($db) . '\''
. ' AND table_name = \'' . PMA_sqlAddslashes($table) . '\'';
}
} elseif ($display_field != '') {
$upd_query = 'INSERT INTO ' . PMA_backquote($cfgRelation['table_info'])
. '(db_name, table_name, display_field) '
. ' VALUES('
. '\'' . PMA_sqlAddslashes($db) . '\','
. '\'' . PMA_sqlAddslashes($table) . '\','
. '\'' . PMA_sqlAddslashes($display_field) . '\')';
}
if (isset($upd_query)) {
$upd_rs = PMA_query_as_cu($upd_query);
}
} // end if
// If we did an update, refresh our data
if (isset($submit_rel) && $submit_rel == 'true') {
if ($cfgRelation['relwork']) {
$existrel = PMA_getForeigners($db, $table, '', 'internal');
}
if ($tbl_type=='INNODB') {
$existrel_innodb = PMA_getForeigners($db, $table, '', 'innodb');
}
}
if ($cfgRelation['displaywork']) {
$disp = PMA_getDisplayField($db, $table);
}
/**
* Dialog
*/
if ($cfgRelation['relwork'] || $tbl_type=='INNODB') {
// To choose relations we first need all tables names in current db
// and if PMA version permits and the main table is innodb,
// we use SHOW TABLE STATUS because we need to find other InnoDB tables
if ($tbl_type=='INNODB') {
$tab_query = 'SHOW TABLE STATUS FROM ' . PMA_backquote($db);
// [0] of the row is the name
// [1] is the type
} else {
$tab_query = 'SHOW TABLES FROM ' . PMA_backquote($db);
}
// [0] of the row is the name
$tab_rs = PMA_DBI_query($tab_query, NULL, PMA_DBI_QUERY_STORE);
$selectboxall['nix'] = '--';
$selectboxall_innodb['nix'] = '--';
while ($curr_table = @PMA_DBI_fetch_row($tab_rs)) {
if (($curr_table[0] != $table) && ($curr_table[0] != $cfg['Server']['relation'])) {
PMA_DBI_select_db($db);
// need to use PMA_DBI_QUERY_STORE with PMA_DBI_num_rows() in mysqli
$fi_rs = PMA_DBI_query('SHOW KEYS FROM ' . PMA_backquote($curr_table[0]) . ';', NULL, PMA_DBI_QUERY_STORE);
if ($fi_rs && PMA_DBI_num_rows($fi_rs) > 0) {
$seen_a_primary = FALSE;
while ($curr_field = PMA_DBI_fetch_assoc($fi_rs)) {
if (isset($curr_field['Key_name']) && $curr_field['Key_name'] == 'PRIMARY') {
$seen_a_primary = TRUE;
$field_full = $db . '.' .$curr_field['Table'] . '.' . $curr_field['Column_name'];
$field_v = $curr_field['Table'] . '->' . $curr_field['Column_name'];
$selectboxall[$field_full] = $field_v;
// there could be more than one segment of the primary
// so do not break
// Please watch here, tbl_type is INNODB but the
// resulting value of SHOW KEYS is InnoDB
if ($tbl_type=='INNODB' && isset($curr_table[1]) && $curr_table[1]=='InnoDB') {
$selectboxall_innodb[$field_full] = $field_v;
}
} else if (isset($curr_field['Non_unique']) && $curr_field['Non_unique'] == 0 && $seen_a_primary==FALSE) {
// if we can't find a primary key we take any unique one
// (in fact, we show all segments of unique keys
// and all unique keys)
$field_full = $db . '.' . $curr_field['Table'] . '.' . $curr_field['Column_name'];
$field_v = $curr_field['Table'] . '->' . $curr_field['Column_name'];
$selectboxall[$field_full] = $field_v;
if ($tbl_type=='INNODB' && isset($curr_table[1]) && $curr_table[1]=='InnoDB') {
$selectboxall_innodb[$field_full] = $field_v;
}
// for InnoDB, any index is allowed
} else if ($tbl_type=='INNODB' && isset($curr_table[1]) && $curr_table[1]=='InnoDB') {
$field_full = $db . '.' . $curr_field['Table'] . '.' . $curr_field['Column_name'];
$field_v = $curr_field['Table'] . '->' . $curr_field['Column_name'];
$selectboxall_innodb[$field_full] = $field_v;
} // end if
} // end while over keys
} // end if (PMA_DBI_num_rows)
PMA_DBI_free_result($fi_rs);
unset($fi_rs);
// Mike Beck - 24.07.02: i've been asked to add all keys of the
// current table (see bug report #574851)
}
else if ($curr_table[0] == $table) {
PMA_DBI_select_db($db);
// need to use PMA_DBI_QUERY_STORE with PMA_DBI_num_rows() in mysqli
$fi_rs = PMA_DBI_query('SHOW KEYS FROM ' . PMA_backquote($curr_table[0]) . ';', NULL, PMA_DBI_QUERY_STORE);
if ($fi_rs && PMA_DBI_num_rows($fi_rs) > 0) {
while ($curr_field = PMA_DBI_fetch_assoc($fi_rs)) {
$field_full = $db . '.' . $curr_field['Table'] . '.' . $curr_field['Column_name'];
$field_v = $curr_field['Table'] . '->' . $curr_field['Column_name'];
$selectboxall[$field_full] = $field_v;
if ($tbl_type=='INNODB' && isset($curr_table[1]) && $curr_table[1]=='InnoDB') {
$selectboxall_innodb[$field_full] = $field_v;
}
} // end while
} // end if (PMA_DBI_num_rows)
PMA_DBI_free_result($fi_rs);
unset($fi_rs);
}
} // end while over tables
} // end if
// Now find out the columns of our $table
// need to use PMA_DBI_QUERY_STORE with PMA_DBI_num_rows() in mysqli
$col_rs = PMA_DBI_try_query('SHOW COLUMNS FROM ' . PMA_backquote($table) . ';', NULL, PMA_DBI_QUERY_STORE);
if ($col_rs && PMA_DBI_num_rows($col_rs) > 0) {
while ($row = PMA_DBI_fetch_assoc($col_rs)) {
$save_row[] = $row;
}
$saved_row_cnt = count($save_row);
echo $tbl_type=='INNODB' ? '' : '<table border="0" cellpadding="0" cellspacing="0">' . "\n"
. ' <tr><td valign="top">' . "\n\n";
?>
<form method="post" action="tbl_relation.php">
<?php echo PMA_generate_common_hidden_inputs($db, $table); ?>
<input type="hidden" name="submit_rel" value="true" />
<table cellpadding="2" cellspacing="1">
<tr>
<th colspan="<?php echo $tbl_type=='INNODB' ? '4' : '2'; ?>" align="center" class="tblHeaders"><b><?php echo $strLinksTo; ?></b></th>
</tr>
<tr>
<th></th>
<?php
if ($cfgRelation['relwork']) {
echo ' <th><b>' .$strInternalRelations;
if ($tbl_type=='INNODB') {
echo ' ' . PMA_showHint($strInternalNotNecessary);
}
echo '</b></th>';
}
if ($tbl_type=='INNODB') {
echo '<th colspan="2">InnoDB';
if (PMA_MYSQL_INT_VERSION < 40013) {
echo ' (**)';
}
echo '</th>';
}
?>
</tr>
<?php
for ($i = 0; $i < $saved_row_cnt; $i++) {
$myfield = $save_row[$i]['Field'];
echo "\n";
?>
<tr>
<td align="center" bgcolor="<?php echo ($i % 2) ? $GLOBALS['cfg']['BgcolorOne'] : $GLOBALS['cfg']['BgcolorTwo']; ?>"><b><?php echo $save_row[$i]['Field']; ?></b></td>
<?php
if ($cfgRelation['relwork']) {
?>
<td bgcolor="<?php echo ($i % 2) ? $GLOBALS['cfg']['BgcolorOne'] : $GLOBALS['cfg']['BgcolorTwo']; ?>">
<select name="destination[<?php echo htmlspecialchars($save_row[$i]['Field']); ?>]">
<?php
echo "\n";
// PMA internal relations
if (isset($existrel[$myfield])) {
$foreign_field = $existrel[$myfield]['foreign_db'] . '.'
. $existrel[$myfield]['foreign_table'] . '.'
. $existrel[$myfield]['foreign_field'];
} else {
$foreign_field = FALSE;
}
$seen_key = FALSE;
foreach ($selectboxall AS $key => $value) {
echo ' '
. '<option value="' . htmlspecialchars($key) . '"';
if ($foreign_field && $key == $foreign_field) {
echo ' selected="selected"';
$seen_key = TRUE;
}
echo '>' . $value . '</option>'. "\n";
} // end while
// if the link defined in relationtable points to a foreign field
// that is not a key in the foreign table, we show the link
// (will not be shown with an arrow)
if ($foreign_field && !$seen_key) {
echo ' '
. '<option value="' . htmlspecialchars($foreign_field) . '"';
echo ' selected="selected"';
echo '>' . $foreign_field . '</option>'. "\n";
}
?>
</select>
</td>
<?php
} // end if (internal relations)
if ($tbl_type=='INNODB') {
if (!empty($save_row[$i]['Key'])) {
?>
<td bgcolor="<?php echo ($i % 2) ? $GLOBALS['cfg']['BgcolorOne'] : $GLOBALS['cfg']['BgcolorTwo']; ?>">
<select name="destination_innodb[<?php echo htmlspecialchars($save_row[$i]['Field']); ?>]">
<?php
if (isset($existrel_innodb[$myfield])) {
$foreign_field = $existrel_innodb[$myfield]['foreign_db'] . '.'
. $existrel_innodb[$myfield]['foreign_table'] . '.'
. $existrel_innodb[$myfield]['foreign_field'];
} else {
$foreign_field = FALSE;
}
$found_foreign_field = FALSE;
foreach ($selectboxall_innodb AS $key => $value) {
echo ' '
. '<option value="' . htmlspecialchars($key) . '"';
if ($foreign_field && $key == $foreign_field) {
echo ' selected="selected"';
$found_foreign_field = TRUE;
}
echo '>' . $value . '</option>'. "\n";
} // end while
// we did not find the foreign field in the tables of current db,
// must be defined in another db so show it to avoid erasing it
if (!$found_foreign_field && $foreign_field) {
echo ' '
. '<option value="' . htmlspecialchars($foreign_field) . '"';
echo ' selected="selected"';
echo '>' . $foreign_field . '</option>'. "\n";
}
?>
</select>
</td>
<td bgcolor="<?php echo ($i % 2) ? $GLOBALS['cfg']['BgcolorOne'] : $GLOBALS['cfg']['BgcolorTwo']; ?>">
<?php
PMA_generate_dropdown('ON DELETE',
htmlspecialchars($save_row[$i]['Field']) . '_on_delete',
$options_array,
(isset($existrel_innodb[$myfield]['on_delete']) ? $existrel_innodb[$myfield]['on_delete']: '') );
echo ' ';
PMA_generate_dropdown('ON UPDATE',
htmlspecialchars($save_row[$i]['Field']) . '_on_update',
$options_array,
(isset($existrel_innodb[$myfield]['on_update']) ? $existrel_innodb[$myfield]['on_update']: '') );
} else {
echo '<td>' . PMA_showHint($strNoIndex) . '</td>';
} // end if (a key exists)
} // end if (InnoDB)
?>
</td>
</tr>
<?php
} // end for
echo "\n";
?>
<tr>
<td colspan="<?php echo $tbl_type=='INNODB' ? '4' : '2'; ?>" align="center" class="tblFooters">
<input type="submit" value="<?php echo ' ' . $strGo . ' '; ?>" />
</td>
</tr>
</table>
<?php
if ($tbl_type=='INNODB') {
if (PMA_MYSQL_INT_VERSION < 40013) {
echo '** ' . sprintf($strUpgrade, 'MySQL', '4.0.13') . '<br />';
}
}
?>
</form>
<?php
echo $tbl_type=='INNODB' ? '' : "\n\n" . ' </td>' . "\n";
if ($cfgRelation['displaywork']) {
echo $tbl_type=='INNODB' ? '' : ' <td> </td>' . "\n"
. ' <td valign="top" align="center">' . "\n\n";
// Get "display_field" infos
$disp = PMA_getDisplayField($db, $table);
echo "\n";
?>
<form method="post" action="tbl_relation.php">
<?php echo PMA_generate_common_hidden_inputs($db, $table); ?>
<input type="hidden" name="submit_show" value="true" />
<p><b><?php echo $strChangeDisplay . ': '; ?></b><br />
<select name="display_field" onchange="this.form.submit();" style="vertical-align: middle">
<option value="">---</option>
<?php
echo "\n";
foreach ($save_row AS $row) {
echo ' <option value="' . htmlspecialchars($row['Field']) . '"';
if (isset($disp) && $row['Field'] == $disp) {
echo ' selected="selected"';
}
echo '>' . htmlspecialchars($row['Field']) . '</option>'. "\n";
} // end while
?>
</select>
<script type="text/javascript" language="javascript">
<!--
// Fake js to allow the use of the <noscript> tag
//-->
</script>
<noscript>
<input type="submit" value="<?php echo $strGo; ?>" style="vertical-align: middle" />
</noscript>
</p>
</form>
<?php
echo $tbl_type=='INNODB' ? '' : "\n\n" . ' </td>' . "\n";
} // end if (displayworks)
// comments handling removed from this page; now only available on
// the field properties page
echo $tbl_type=='INNODB' ? '' : "\n\n" . ' </td></tr>' . "\n"
. '</table>' . "\n\n";
} // end if (we have columns in this table)
/**
* Displays the footer
*/
require_once('./footer.inc.php');
?>