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bug #2868328 [relations] Adding foreign key when table name contains a dot

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This commit is contained in:
Marc Delisle
2009-10-17 12:58:05 +00:00
parent 58f05fbebd
commit e9a1687a75
3 changed files with 62 additions and 28 deletions
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69
tbl_relation.php
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@@ -5,7 +5,7 @@
*
* includes phpMyAdmin relations and InnoDB relations
*
* @todo fix name handling: currently names with dots (.) are not properly handled
* @todo fix name handling: currently names with dots (.) are not properly handled for internal relations (but foreign keys relations are correct)
* @todo foreign key constraints require both fields being of equal type and size
* @todo check foreign fields to be from same type and size, all other makes no sense
* @todo add an link to create an index required for constraints, or an option to do automatically
@@ -73,6 +73,36 @@ function PMA_generate_dropdown($dropdown_question, $select_name, $choices, $sele
echo '</select>' . "\n";
}
/**
* Split a string on backquote pairs
*
* @param string original string
* @return array containing the elements (and their surrounding backquotes)
*
* @access public
*/
function PMA_backquote_split($text)
{
$elements = array();
$final_pos = strlen($text) - 1;
$pos = 0;
while ($pos <= $final_pos) {
$first_backquote = strpos($text, '`', $pos);
$second_backquote = strpos($text, '`', $first_backquote + 1);
// after the second one, there might be another one which means
// this is an escaped backquote
if ($second_backquote < $final_pos && '`' == $text[$second_backquote + 1]) {
$second_backquote = strpos($text, '`', $second_backquote + 2);
}
if (false === $first_backquote || false === $second_backquote) {
break;
}
$elements[] = substr($text, $first_backquote, $second_backquote - $first_backquote + 1);
$pos = $second_backquote + 1;
}
return($elements);
}
/**
* Gets the relation settings
*/
@@ -157,9 +187,7 @@ if (isset($_REQUEST['destination_foreign'])) {
$master_field = $me_fields_name[$master_field_md5];
if (! empty($foreign_string)) {
$foreign_string = trim($foreign_string, '`');
list($foreign_db, $foreign_table, $foreign_field) =
explode('.', $foreign_string);
list($foreign_db, $foreign_table, $foreign_field) = PMA_backquote_split($foreign_string);
if (!isset($existrel_foreign[$master_field])) {
// no key defined for this field
@@ -173,9 +201,9 @@ if (isset($_REQUEST['destination_foreign'])) {
. ' ADD FOREIGN KEY ('
. PMA_backquote($master_field) . ')'
. ' REFERENCES '
. PMA_backquote($foreign_db) . '.'
. PMA_backquote($foreign_table) . '('
. PMA_backquote($foreign_field) . ')';
. $foreign_db . '.'
. $foreign_table . '('
. $foreign_field . ')';
if (! empty($_REQUEST['on_delete'][$master_field_md5])) {
$sql_query .= ' ON DELETE ' . $options_array[$_REQUEST['on_delete'][$master_field_md5]];
@@ -187,9 +215,11 @@ if (isset($_REQUEST['destination_foreign'])) {
$display_query .= $sql_query . "\n";
// end repeated code
} elseif (($existrel_foreign[$master_field]['foreign_db'] . '.' .$existrel_foreign[$master_field]['foreign_table'] . '.' . $existrel_foreign[$master_field]['foreign_field'] != $foreign_string)
|| ($_REQUEST['on_delete'][$master_field_md5] != (!empty($existrel_foreign[$master_field]['on_delete']) ? $existrel_foreign[$master_field]['on_delete'] : ''))
|| ($_REQUEST['on_update'][$master_field_md5] != (!empty($existrel_foreign[$master_field]['on_update']) ? $existrel_foreign[$master_field]['on_update'] : ''))
} elseif (PMA_backquote($existrel_foreign[$master_field]['foreign_db']) != $foreign_db
|| PMA_backquote($existrel_foreign[$master_field]['foreign_table']) != $foreign_table
|| PMA_backquote($existrel_foreign[$master_field]['foreign_field']) != $foreign_field
|| ($_REQUEST['on_delete'][$master_field_md5] != (!empty($existrel_foreign[$master_field]['on_delete']) ? $existrel_foreign[$master_field]['on_delete'] : ''))
|| ($_REQUEST['on_update'][$master_field_md5] != (!empty($existrel_foreign[$master_field]['on_update']) ? $existrel_foreign[$master_field]['on_update'] : ''))
) {
// another foreign key is already defined for this field
// or
@@ -209,9 +239,9 @@ if (isset($_REQUEST['destination_foreign'])) {
. ' ADD FOREIGN KEY ('
. PMA_backquote($master_field) . ')'
. ' REFERENCES '
. PMA_backquote($foreign_db) . '.'
. PMA_backquote($foreign_table) . '('
. PMA_backquote($foreign_field) . ')';
. $foreign_db . '.'
. $foreign_table . '('
. $foreign_field . ')';
if (! empty($_REQUEST['on_delete'][$master_field_md5])) {
$sql_query .= ' ON DELETE '
@@ -340,7 +370,7 @@ if ($cfgRelation['relwork'] || PMA_foreignkey_supported($tbl_type)) {
$current_table = new PMA_Table($curr_table[0], $db);
// explicitely ask for non-quoted list of indexed columns
$selectboxall = array_merge($selectboxall, $current_table->getUniqueColumns(false));
$selectboxall = array_merge($selectboxall, $current_table->getUniqueColumns($backquoted = false));
// if foreign keys are supported, collect all keys from other
// tables of the same engine
@@ -348,7 +378,8 @@ if ($cfgRelation['relwork'] || PMA_foreignkey_supported($tbl_type)) {
&& isset($curr_table[1])
&& strtoupper($curr_table[1]) == $tbl_type) {
// explicitely ask for non-quoted list of indexed columns
$selectboxall_foreign = array_merge($selectboxall_foreign, $current_table->getIndexedColumns(false));
// need to obtain backquoted values to support dots inside values
$selectboxall_foreign = array_merge($selectboxall_foreign, $current_table->getIndexedColumns($backquoted = true));
}
} // end while over tables
} // end if
@@ -443,9 +474,11 @@ if ($col_rs && PMA_DBI_num_rows($col_rs) > 0) {
<select name="destination_foreign[<?php echo $myfield_md5; ?>]">
<?php
if (isset($existrel_foreign[$myfield])) {
$foreign_field = $existrel_foreign[$myfield]['foreign_db'] . '.'
. $existrel_foreign[$myfield]['foreign_table'] . '.'
. $existrel_foreign[$myfield]['foreign_field'];
// need to backquote to support a dot character inside
// an element
$foreign_field = PMA_backquote($existrel_foreign[$myfield]['foreign_db']) . '.'
. PMA_backquote($existrel_foreign[$myfield]['foreign_table']) . '.'
. PMA_backquote($existrel_foreign[$myfield]['foreign_field']);
} else {
$foreign_field = FALSE;
}