3 // Upgrade YOURLS and DB schema
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4 function yourls_upgrade( $step, $oldver, $newver, $oldsql, $newsql ) {
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5 // As of now, there's no other upgrading possibility.
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6 // In the future this function may contain tests to upgrade
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7 // from any release to the latest
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8 yourls_upgrade_to_14( $step );
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12 // Upgrade DB Schema from 1.3-RC1 or prior to 1.4
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13 function yourls_upgrade_to_14( $step ) {
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17 // create table log & table options
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18 // update table url structure
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20 yourls_create_tables_for_14(); // no value returned, assuming it went OK
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21 yourls_alter_url_table_to_14(); // no value returned, assuming it went OK
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22 $clean = yourls_clean_htaccess_for_14(); // returns bool
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23 $create = yourls_create_htaccess(); // returns bool
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24 $result = ( $clean && $create );
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26 echo "<p>Manually check your <tt>.htaccess</tt> file. Please refer to <a href='http://yourls.org/htaccess'>http://yourls.org/htaccess</a>.";
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27 yourls_redirect_javascript( YOURLS_SITE."/admin/upgrade.php?step=2&oldver=1.3&newver=1.4&oldsql=100&newsql=200", $result );
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31 // convert each link in table url
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32 yourls_update_table_to_14();
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36 // update table url structure part 2: recreate indexes
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37 yourls_alter_url_table_to_14_part_two();
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38 // update version & db_version & next_id in the option table
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39 // attempt to drop YOURLS_DB_TABLE_NEXTDEC
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40 yourls_update_options_to_14();
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46 // Update options to reflect new version
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47 function yourls_update_options_to_14() {
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48 yourls_update_option( 'version', YOURLS_VERSION );
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49 yourls_update_option( 'db_version', YOURLS_DB_VERSION );
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51 if( defined('YOURLS_DB_TABLE_NEXTDEC') ) {
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53 $table = YOURLS_DB_TABLE_NEXTDEC;
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54 $next_id = $ydb->get_var("SELECT `next_id` FROM `$table`");
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55 yourls_update_option( 'next_id', $next_id );
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56 @$ydb->query( "DROP TABLE `$table`" );
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58 yourls_update_option( 'next_id', 1 ); // In case someone mistakenly deleted the next_id constant or table too early
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62 // Create new tables for YOURLS 1.4: options & log
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63 function yourls_create_tables_for_14() {
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68 $queries[YOURLS_DB_TABLE_OPTIONS] =
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69 'CREATE TABLE IF NOT EXISTS `'.YOURLS_DB_TABLE_OPTIONS.'` ('.
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70 '`option_id` int(11) unsigned NOT NULL auto_increment,'.
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71 '`option_name` varchar(64) NOT NULL default "",'.
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72 '`option_value` longtext NOT NULL,'.
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73 'PRIMARY KEY (`option_id`,`option_name`),'.
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74 'KEY `option_name` (`option_name`)'.
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77 $queries[YOURLS_DB_TABLE_LOG] =
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78 'CREATE TABLE IF NOT EXISTS `'.YOURLS_DB_TABLE_LOG.'` ('.
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79 '`click_id` int(11) NOT NULL auto_increment,'.
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80 '`click_time` datetime NOT NULL,'.
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81 '`shorturl` varchar(200) NOT NULL,'.
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82 '`referrer` varchar(200) NOT NULL,'.
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83 '`user_agent` varchar(255) NOT NULL,'.
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84 '`ip_address` varchar(41) NOT NULL,'.
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85 '`country_code` char(2) NOT NULL,'.
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86 'PRIMARY KEY (`click_id`),'.
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87 'KEY `shorturl` (`shorturl`)'.
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90 foreach( $queries as $query ) {
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91 $ydb->query( $query ); // There's no result to be returned to check if table was created (except making another query to check table existence, which we'll avoid)
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94 echo "<p>New tables created. Please wait...</p>";
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98 // Alter table structure, part 1 (change schema, drop index)
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99 function yourls_alter_url_table_to_14() {
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101 $table = YOURLS_DB_TABLE_URL;
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104 $results = array();
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105 $alters[] = "ALTER TABLE `$table` DROP PRIMARY KEY";
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106 $alters[] = "ALTER TABLE `$table` CHANGE `id` `keyword` VARCHAR( 200 ) NOT NULL";
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107 $alters[] = "ALTER TABLE `$table` CHANGE `url` `url` TEXT NOT NULL";
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109 foreach ( $alters as $query ) {
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110 $ydb->query( $query );
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113 echo "<p>Structure of existing tables updated. Please wait...</p>";
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116 // Alter table structure, part 2 (recreate indexes after the table is up to date)
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117 function yourls_alter_url_table_to_14_part_two() {
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119 $table = YOURLS_DB_TABLE_URL;
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122 $alters[] = "ALTER TABLE `$table` ADD PRIMARY KEY ( `keyword` )";
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123 $alters[] = "ALTER TABLE `$table` ADD INDEX ( `ip` )";
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124 $alters[] = "ALTER TABLE `$table` ADD INDEX ( `timestamp` )";
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126 foreach ( $alters as $query ) {
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127 $ydb->query( $query );
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130 echo "<p>New table index created</p>";
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133 // Convert each link from 1.3 (id) to 1.4 (keyword) structure
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134 function yourls_update_table_to_14() {
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136 $table = YOURLS_DB_TABLE_URL;
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138 // Modify each link to reflect new structure
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140 $from = isset($_GET['from']) ? intval( $_GET['from'] ) : 0 ;
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141 $total = yourls_get_db_stats();
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142 $total = $total['total_links'];
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144 $sql = "SELECT `keyword`,`url` FROM `$table` WHERE 1=1 ORDER BY `url` ASC LIMIT $from, $chunk ;";
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146 $rows = $ydb->get_results($sql);
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150 foreach( $rows as $row ) {
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151 $keyword = $row->keyword;
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153 $newkeyword = yourls_int2string( $keyword );
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154 $ydb->query("UPDATE `$table` SET `keyword` = '$newkeyword' WHERE `url` = '$url';");
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155 if( $ydb->result === true ) {
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158 echo "<p>Huho... Could not update rown with url='$url', from keyword '$keyword' to keyword '$newkeyword'</p>"; // Find what went wrong :/
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163 // All done for this chunk of queries, did it all go as expected?
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165 if( $count != $queries ) {
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167 $num = $count - $queries;
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168 echo "<p>$num error(s) occured while updating the URL table :(</p>";
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171 if ( $count == $chunk ) {
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172 // there are probably other rows to convert
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173 $from = $from + $chunk;
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174 $remain = $total - $from;
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175 echo "<p>Converted $chunk database rows ($remain remaining). Continuing... Please do not close this window until it's finished!</p>";
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176 yourls_redirect_javascript( YOURLS_SITE."/admin/upgrade.php?step=2&oldver=1.3&newver=1.4&oldsql=100&newsql=200&from=$from", $success );
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179 echo '<p>All rows converted! Please wait...</p>';
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180 yourls_redirect_javascript( YOURLS_SITE."/admin/upgrade.php?step=3&oldver=1.3&newver=1.4&oldsql=100&newsql=200", $success );
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185 // Clean .htaccess as it existed before 1.4. Returns boolean
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186 function yourls_clean_htaccess_for_14() {
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187 $filename = dirname(dirname(__FILE__)).'/.htaccess';
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190 if( is_writeable( $filename ) ) {
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191 $contents = implode( '', file( $filename ) );
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192 // remove "ShortURL" block
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193 $contents = preg_replace( '/# BEGIN ShortURL.*# END ShortURL/s', '', $contents );
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194 // comment out deprecated RewriteRule
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195 $find = 'RewriteRule .* - [E=REMOTE_USER:%{HTTP:Authorization},L]';
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196 $replace = "# You can safely remove this 5 lines block -- it's no longer used in YOURLS\n".
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198 $contents = str_replace( $find, $replace, $contents );
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200 // Write cleaned file
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201 $f = fopen( $filename, 'w' );
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202 fwrite( $f, $contents );
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209 echo "<p>Old .htaccess file cleaned up</p>";
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211 echo "<p>Could not update <tt>.htaccess</tt>.</p>";
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