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<?php
/* $Id: sql.php,v 2.33 2004/09/24 15:41:50 nijel Exp $ */
// vim: expandtab sw=4 ts=4 sts=4:
error_reporting(E_ALL);
/**
* Set of functions used to build SQL dumps of tables
*/
/**
* Marker for comments, -- is needed for ANSI SQL.
*/
$comment_marker = '-- ';
/**
* Outputs comment
*
* @param string Text of comment
*
* @return bool Whether it suceeded
*/
function PMA_exportComment($text) {
return PMA_exportOutputHandler($GLOBALS['comment_marker'] . $text . $GLOBALS['crlf']);
}
/**
* Outputs export footer
*
* @return bool Whether it suceeded
*
* @access public
*/
function PMA_exportFooter() {
global $crlf;
$foot = '';
if (isset($GLOBALS['disable_fk'])) {
$foot .= $crlf . 'SET FOREIGN_KEY_CHECKS=1;' . $crlf;
}
if (isset($GLOBALS['use_transaction'])) {
$foot .= $crlf . 'COMMIT;' . $crlf;
}
return PMA_exportOutputHandler($foot);
}
/**
* Outputs export header
*
* @return bool Whether it suceeded
*
* @access public
*/
function PMA_exportHeader() {
global $crlf;
global $cfg;
$head = $GLOBALS['comment_marker'] . 'phpMyAdmin SQL Dump' . $crlf
. $GLOBALS['comment_marker'] . 'version ' . PMA_VERSION . $crlf
. $GLOBALS['comment_marker'] . 'http://www.phpmyadmin.net' . $crlf
. $GLOBALS['comment_marker'] . $crlf
. $GLOBALS['comment_marker'] . $GLOBALS['strHost'] . ': ' . $cfg['Server']['host'];
if (!empty($cfg['Server']['port'])) {
$head .= ':' . $cfg['Server']['port'];
}
$head .= $crlf
. $GLOBALS['comment_marker'] . $GLOBALS['strGenTime'] . ': ' . PMA_localisedDate() . $crlf
. $GLOBALS['comment_marker'] . $GLOBALS['strServerVersion'] . ': ' . substr(PMA_MYSQL_INT_VERSION, 0, 1) . '.' . (int) substr(PMA_MYSQL_INT_VERSION, 1, 2) . '.' . (int) substr(PMA_MYSQL_INT_VERSION, 3) . $crlf
. $GLOBALS['comment_marker'] . $GLOBALS['strPHPVersion'] . ': ' . phpversion() . $crlf;
if (isset($GLOBALS['header_comment']) && !empty($GLOBALS['header_comment'])) {
$lines = explode('\n', $GLOBALS['header_comment']);
$head .= $GLOBALS['comment_marker'] . $crlf
. $GLOBALS['comment_marker'] . implode($crlf . $GLOBALS['comment_marker'], $lines) . $crlf
. $GLOBALS['comment_marker'] . $crlf;
}
if (isset($GLOBALS['disable_fk'])) {
$head .= $crlf . 'SET FOREIGN_KEY_CHECKS=0;' . $crlf;
}
if (isset($GLOBALS['use_transaction'])) {
$head .= $crlf .'SET AUTOCOMMIT=0;' . $crlf
. 'START TRANSACTION;' . $crlf . $crlf;
}
return PMA_exportOutputHandler($head);
}
/**
* Outputs create database database
*
* @param string Database name
*
* @return bool Whether it suceeded
*
* @access public
*/
function PMA_exportDBCreate($db) {
global $crlf;
if (isset($GLOBALS['drop_database'])) {
if (!PMA_exportOutputHandler('DROP DATABASE ' . (isset($GLOBALS['use_backquotes']) ? PMA_backquote($db) : $db) . ';' . $crlf)) return FALSE;
}
$create_query = 'CREATE DATABASE ' . (isset($GLOBALS['use_backquotes']) ? PMA_backquote($db) : $db);
if (PMA_MYSQL_INT_VERSION >= 40101) {
$collation = PMA_getDbCollation($db);
if (strpos($collation, '_')) {
$create_query .= ' DEFAULT CHARACTER SET ' . substr($collation, 0, strpos($collation, '_')) . ' COLLATE ' . $collation;
} else {
$create_query .= ' DEFAULT CHARACTER SET ' . $collation;
}
}
$create_query .= ';' . $crlf;
if (!PMA_exportOutputHandler($create_query)) return FALSE;
return PMA_exportOutputHandler('USE ' . $db . ';' . $crlf);
}
/**
* Outputs database header
*
* @param string Database name
*
* @return bool Whether it suceeded
*
* @access public
*/
function PMA_exportDBHeader($db) {
global $crlf;
$head = $GLOBALS['comment_marker'] . $crlf
. $GLOBALS['comment_marker'] . $GLOBALS['strDatabase'] . ': ' . (isset($GLOBALS['use_backquotes']) ? PMA_backquote($db) : '\'' . $db . '\''). $crlf
. $GLOBALS['comment_marker'] . $crlf;
return PMA_exportOutputHandler($head);
}
/**
* Outputs database footer
*
* @param string Database name
*
* @return bool Whether it suceeded
*
* @access public
*/
function PMA_exportDBFooter($db) {
if (isset($GLOBALS['sql_constraints'])) return PMA_exportOutputHandler($GLOBALS['sql_constraints']);
return TRUE;
}
/**
* Returns $table's CREATE definition
*
* @param string the database name
* @param string the table name
* @param string the end of line sequence
* @param string the url to go back in case of error
* @param boolean whether to include creation/update/check dates
*
* @return string resulting schema
*
* @global boolean whether to add 'drop' statements or not
* @global boolean whether to use backquotes to allow the use of special
* characters in database, table and fields names or not
*
* @access public
*/
function PMA_getTableDef($db, $table, $crlf, $error_url, $show_dates = false)
{
global $drop;
global $use_backquotes;
global $cfgRelation;
global $sql_constraints;
$schema_create = '';
$auto_increment = '';
$new_crlf = $crlf;
$result = PMA_DBI_query('SHOW TABLE STATUS FROM ' . PMA_backquote($db) . ' LIKE \'' . PMA_sqlAddslashes($table) . '\'');
if ($result != FALSE) {
if (PMA_DBI_num_rows($result) > 0) {
$tmpres = PMA_DBI_fetch_assoc($result);
if (isset($GLOBALS['auto_increment']) && !empty($tmpres['Auto_increment'])) {
$auto_increment .= ' AUTO_INCREMENT=' . $tmpres['Auto_increment'] . ' ';
}
if ($show_dates && isset($tmpres['Create_time']) && !empty($tmpres['Create_time'])) {
$schema_create .= $GLOBALS['comment_marker'] . $GLOBALS['strStatCreateTime'] . ': ' . PMA_localisedDate(strtotime($tmpres['Create_time'])) . $crlf;
$new_crlf = $GLOBALS['comment_marker'] . $crlf . $crlf;
}
if ($show_dates && isset($tmpres['Update_time']) && !empty($tmpres['Update_time'])) {
$schema_create .= $GLOBALS['comment_marker'] . $GLOBALS['strStatUpdateTime'] . ': ' . PMA_localisedDate(strtotime($tmpres['Update_time'])) . $crlf;
$new_crlf = $GLOBALS['comment_marker'] . $crlf . $crlf;
}
if ($show_dates && isset($tmpres['Check_time']) && !empty($tmpres['Check_time'])) {
$schema_create .= $GLOBALS['comment_marker'] . $GLOBALS['strStatCheckTime'] . ': ' . PMA_localisedDate(strtotime($tmpres['Check_time'])) . $crlf;
$new_crlf = $GLOBALS['comment_marker'] . $crlf . $crlf;
}
}
PMA_DBI_free_result($result);
}
$schema_create .= $new_crlf;
if (!empty($drop)) {
$schema_create .= 'DROP TABLE IF EXISTS ' . PMA_backquote($table, $use_backquotes) . ';' . $crlf;
}
// Steve Alberty's patch for complete table dump,
// Whether to quote table and fields names or not
if ($use_backquotes) {
PMA_DBI_query('SET SQL_QUOTE_SHOW_CREATE = 1');
} else {
PMA_DBI_query('SET SQL_QUOTE_SHOW_CREATE = 0');
}
$result = PMA_DBI_query('SHOW CREATE TABLE ' . PMA_backquote($db) . '.' . PMA_backquote($table), NULL, PMA_DBI_QUERY_UNBUFFERED);
if ($result != FALSE && ($row = PMA_DBI_fetch_row($result))) {
$create_query = $row[1];
unset($row);
// Should we use IF NOT EXISTS?
if (isset($GLOBALS['if_not_exists'])) {
$create_query = preg_replace('/^CREATE TABLE/', 'CREATE TABLE IF NOT EXISTS', $create_query);
}
// are there any constraints to cut out?
if (preg_match('@CONSTRAINT|FOREIGN[\s]+KEY@', $create_query)) {
// split the query into lines, so we can easilly handle it
if (strpos(",\r\n ", $create_query) === FALSE) {
$sql_lines = preg_split('@\r|\n@', $create_query);
} else {
$sql_lines = preg_split('@\r\n@', $create_query);
}
$sql_count = count($sql_lines);
// lets find first line with constraints
for ($i = 0; $i < $sql_count; $i++) {
if (preg_match('@CONSTRAINT|FOREIGN[\s]+KEY@', $sql_lines[$i])) break;
}
// remove , from the end of create statement
$sql_lines[$i - 1] = preg_replace('@,$@', '', $sql_lines[$i - 1]);
// prepare variable for constraints
if (!isset($sql_constraints)) {
if (isset($GLOBALS['no_constraints_comments'])) {
$sql_constraints = '';
} else {
$sql_constraints = $crlf . $GLOBALS['comment_marker'] .
$crlf . $GLOBALS['comment_marker'] . $GLOBALS['strConstraintsForDumped'] .
$crlf . $GLOBALS['comment_marker'] . $crlf;
}
}
// comments for current table
if (!isset($GLOBALS['no_constraints_comments'])) {
$sql_constraints .= $crlf . $GLOBALS['comment_marker'] .
$crlf . $GLOBALS['comment_marker'] . $GLOBALS['strConstraintsForTable'] . ' ' . PMA_backquote($table) .
$crlf . $GLOBALS['comment_marker'] . $crlf;
}
// let's do the work
$sql_constraints .= 'ALTER TABLE ' . PMA_backquote($table) . $crlf;
$first = TRUE;
for($j = $i; $j < $sql_count; $j++) {
if (preg_match('@CONSTRAINT|FOREIGN[\s]+KEY@', $sql_lines[$j])) {
if (!$first) {
$sql_constraints .= $crlf;
}
if (strpos($sql_lines[$j], 'CONSTRAINT') === FALSE) {
$sql_constraints .= preg_replace('/(FOREIGN[\s]+KEY)/', 'ADD \1', $sql_lines[$j]);
} else {
$sql_constraints .= preg_replace('/(CONSTRAINT)/', 'ADD \1', $sql_lines[$j]);
}
$first = FALSE;
} else {
break;
}
}
$sql_constraints .= ';' . $crlf;
$create_query = implode($crlf, array_slice($sql_lines, 0, $i)) . $crlf . implode($crlf, array_slice($sql_lines, $j, $sql_count - 1));
unset($sql_lines);
}
$schema_create .= $create_query;
}
$schema_create .= $auto_increment;
PMA_DBI_free_result($result);
return $schema_create;
} // end of the 'PMA_getTableDef()' function
/**
* Returns $table's comments, relations etc.
*
* @param string the database name
* @param string the table name
* @param string the end of line sequence
* @param boolean whether to include relation comments
* @param boolean whether to include column comments
* @param boolean whether to include mime comments
*
* @return string resulting comments
*
* @access public
*/
function PMA_getTableComments($db, $table, $crlf, $do_relation = false, $do_comments = false, $do_mime = false)
{
global $cfgRelation;
global $use_backquotes;
global $sql_constraints;
$schema_create = '';
if ($do_comments && $cfgRelation['commwork']) {
if (!($comments_map = PMA_getComments($db, $table))) unset($comments_map);
}
// Check if we can use Relations (Mike Beck)
if ($do_relation && !empty($cfgRelation['relation'])) {
// Find which tables are related with the current one and write it in
// an array
$res_rel = PMA_getForeigners($db, $table);
if ($res_rel && count($res_rel) > 0) {
$have_rel = TRUE;
} else {
$have_rel = FALSE;
}
}
else {
$have_rel = FALSE;
} // end if
if ($do_mime && $cfgRelation['mimework']) {
if (!($mime_map = PMA_getMIME($db, $table, true))) unset($mime_map);
}
if (isset($comments_map) && count($comments_map) > 0) {
$schema_create .= $crlf . $GLOBALS['comment_marker'] . $crlf
. $GLOBALS['comment_marker'] . $GLOBALS['strCommentsForTable']. ' ' . PMA_backquote($table, $use_backquotes) . ':' . $crlf;
foreach ($comments_map AS $comment_field => $comment) {
$schema_create .= $GLOBALS['comment_marker'] . ' ' . PMA_backquote($comment_field, $use_backquotes) . $crlf
. $GLOBALS['comment_marker'] . ' ' . PMA_backquote($comment, $use_backquotes) . $crlf;
}
$schema_create .= $GLOBALS['comment_marker'] . $crlf;
}
if (isset($mime_map) && count($mime_map) > 0) {
$schema_create .= $crlf . $GLOBALS['comment_marker'] . $crlf
. $GLOBALS['comment_marker'] . $GLOBALS['strMIMETypesForTable']. ' ' . PMA_backquote($table, $use_backquotes) . ':' . $crlf;
@reset($mime_map);
foreach ($mime_map AS $mime_field => $mime) {
$schema_create .= $GLOBALS['comment_marker'] . ' ' . PMA_backquote($mime_field, $use_backquotes) . $crlf
. $GLOBALS['comment_marker'] . ' ' . PMA_backquote($mime['mimetype'], $use_backquotes) . $crlf;
}
$schema_create .= $GLOBALS['comment_marker'] . $crlf;
}
if ($have_rel) {
$schema_create .= $crlf . $GLOBALS['comment_marker'] . $crlf
. $GLOBALS['comment_marker'] . $GLOBALS['strRelationsForTable']. ' ' . PMA_backquote($table, $use_backquotes) . ':' . $crlf;
foreach ($res_rel AS $rel_field => $rel) {
$schema_create .= $GLOBALS['comment_marker'] . ' ' . PMA_backquote($rel_field, $use_backquotes) . $crlf
. $GLOBALS['comment_marker'] . ' ' . PMA_backquote($rel['foreign_table'], $use_backquotes)
. ' -> ' . PMA_backquote($rel['foreign_field'], $use_backquotes) . $crlf;
}
$schema_create .= $GLOBALS['comment_marker'] . $crlf;
}
return $schema_create;
} // end of the 'PMA_getTableComments()' function
/**
* Outputs table's structure
*
* @param string the database name
* @param string the table name
* @param string the end of line sequence
* @param string the url to go back in case of error
* @param boolean whether to include relation comments
* @param boolean whether to include column comments
* @param boolean whether to include mime comments
*
* @return bool Whether it suceeded
*
* @access public
*/
function PMA_exportStructure($db, $table, $crlf, $error_url, $relation = FALSE, $comments = FALSE, $mime = FALSE, $dates = FALSE) {
$formatted_table_name = (isset($GLOBALS['use_backquotes']))
? PMA_backquote($table)
: '\'' . $table . '\'';
$dump = $crlf
. $GLOBALS['comment_marker'] . '--------------------------------------------------------' . $crlf
. $crlf . $GLOBALS['comment_marker'] . $crlf
. $GLOBALS['comment_marker'] . $GLOBALS['strTableStructure'] . ' ' . $formatted_table_name . $crlf
. $GLOBALS['comment_marker'] . $crlf
. PMA_getTableDef($db, $table, $crlf, $error_url, $dates) . ';' . $crlf
. PMA_getTableComments($db, $table, $crlf, $relation, $comments, $mime);
return PMA_exportOutputHandler($dump);
}
/**
* Dispatches between the versions of 'getTableContent' to use depending
* on the php version
*
* @param string the database name
* @param string the table name
* @param string the end of line sequence
* @param string the url to go back in case of error
* @param string SQL query for obtaining data
*
* @return bool Whether it suceeded
*
* @global boolean whether to use backquotes to allow the use of special
* characters in database, table and fields names or not
* @global integer the number of records
* @global integer the current record position
*
* @access public
*
* @see PMA_getTableContentFast(), PMA_getTableContentOld()
*
* @author staybyte
*/
function PMA_exportData($db, $table, $crlf, $error_url, $sql_query)
{
global $use_backquotes;
global $rows_cnt;
global $current_row;
$formatted_table_name = (isset($GLOBALS['use_backquotes']))
? PMA_backquote($table)
: '\'' . $table . '\'';
$head = $crlf
. $GLOBALS['comment_marker'] . $crlf
. $GLOBALS['comment_marker'] . $GLOBALS['strDumpingData'] . ' ' . $formatted_table_name . $crlf
. $GLOBALS['comment_marker'] . $crlf .$crlf;
if (!PMA_exportOutputHandler($head)) return FALSE;
$buffer = '';
// analyze the query to get the true column names, not the aliases
// (this fixes an undefined index, also if Complete inserts
// are used, we did not get the true column name in case of aliases)
$analyzed_sql = PMA_SQP_analyze(PMA_SQP_parse($sql_query));
$result = PMA_DBI_query($sql_query, NULL, PMA_DBI_QUERY_UNBUFFERED);
if ($result != FALSE) {
$fields_cnt = PMA_DBI_num_fields($result);
// Get field information
$fields_meta = PMA_DBI_get_fields_meta($result);
$field_flags = array();
for ($j = 0; $j < $fields_cnt; $j++) {
$field_flags[$j] = PMA_DBI_field_flags($result, $j);
}
for ($j = 0; $j < $fields_cnt; $j++) {
if (isset($analyzed_sql[0]['select_expr'][$j]['column'])) {
$field_set[$j] = PMA_backquote($analyzed_sql[0]['select_expr'][$j]['column'], $use_backquotes);
} else {
$field_set[$j] = PMA_backquote($fields_meta[$j]->name, $use_backquotes);
}
}
if (isset($GLOBALS['sql_type']) && $GLOBALS['sql_type'] == 'update') {
// update
$schema_insert = 'UPDATE ';
if (isset($GLOBALS['sql_ignore']))
$schema_insert .= 'IGNORE ';
$schema_insert .= PMA_backquote($table, $use_backquotes) . ' SET ';
} else {
// insert or replace
if (isset($GLOBALS['sql_type']) && $GLOBALS['sql_type'] == 'replace') {
$sql_command = 'REPLACE';
} else {
$sql_command = 'INSERT';
}
// delayed inserts?
if (isset($GLOBALS['delayed'])) {
$insert_delayed = ' DELAYED';
} else {
$insert_delayed = '';
}
// insert ignore?
if (isset($GLOBALS['sql_type']) && $GLOBALS['sql_type'] == 'insert' && isset($GLOBALS['sql_ignore'])) {
$insert_delayed .= ' IGNORE';
}
// scheme for inserting fields
if (isset($GLOBALS['showcolumns'])) {
$fields = implode(', ', $field_set);
$schema_insert = $sql_command . $insert_delayed .' INTO ' . PMA_backquote($table, $use_backquotes)
. ' (' . $fields . ') VALUES (';
} else {
$schema_insert = $sql_command . $insert_delayed .' INTO ' . PMA_backquote($table, $use_backquotes)
. ' VALUES (';
}
}
$search = array("\x00", "\x0a", "\x0d", "\x1a"); //\x08\\x09, not required
$replace = array('\0', '\n', '\r', '\Z');
$current_row = 0;
$separator = isset($GLOBALS['extended_ins']) ? ',' : ';';
while ($row = PMA_DBI_fetch_row($result)) {
$current_row++;
for ($j = 0; $j < $fields_cnt; $j++) {
// NULL
if (!isset($row[$j]) || is_null($row[$j])) {
$values[] = 'NULL';
// a number
// timestamp is numeric on some MySQL 4.1
} elseif ($fields_meta[$j]->numeric && $fields_meta[$j]->type != 'timestamp') {
$values[] = $row[$j];
// a binary field
// Note: with mysqli, under MySQL 4.1.3, we get the flag
// "binary" for a datetime (I don't know why)
} else if (stristr($field_flags[$j], 'BINARY') && isset($GLOBALS['hexforbinary']) && $fields_meta[$j]->type != 'datetime') {
// empty blobs need to be different, but '0' is also empty :-(
if (empty($row[$j]) && $row[$j] != '0') {
$values[] = '\'\'';
} else {
$values[] = '0x' . bin2hex($row[$j]);
}
// something else -> treat as a string
} else {
$values[] = '\'' . str_replace($search, $replace, PMA_sqlAddslashes($row[$j])) . '\'';
} // end if
} // end for
// should we make update?
if (isset($GLOBALS['sql_type']) && $GLOBALS['sql_type'] == 'update') {
$insert_line = $schema_insert;
for ($i = 0; $i < $fields_cnt; $i++) {
if ($i > 0) {
$insert_line .= ', ';
}
$insert_line .= $field_set[$i] . ' = ' . $values[$i];
}
$insert_line .= ' WHERE ' . PMA_getUvaCondition($result, $fields_cnt, $fields_meta, $row);
} else {
// Extended inserts case
if (isset($GLOBALS['extended_ins'])) {
if ($current_row == 1) {
$insert_line = $schema_insert . implode(', ', $values) . ')';
} else {
$insert_line = '(' . implode(', ', $values) . ')';
}
}
// Other inserts case
else {
$insert_line = $schema_insert . implode(', ', $values) . ')';
}
}
unset($values);
if (!PMA_exportOutputHandler(($current_row == 1 ? '' : $separator . $crlf) . $insert_line)) return FALSE;
} // end while
if ($current_row > 0) {
if (!PMA_exportOutputHandler(';' . $crlf)) return FALSE;
}
} // end if ($result != FALSE)
PMA_DBI_free_result($result);
return TRUE;
} // end of the 'PMA_exportData()' function
?>
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