Moved parts required only when installing/upgrading from driver_pgsql.php to driver_pgsql_install.php, loaded when required
git-svn-id: https://plugins.svn.wordpress.org/postgresql-for-wordpress/trunk@195579 b8457f37-d9ea-0310-8a92-e5e31aec5664
This commit is contained in:
hawk__
@@ -13,31 +13,10 @@
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* This was originally based on usleepless's original 'mysql2pgsql.php' file, many thanks to him
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*/
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// List of types translations (the key is the mysql one, the value is the text to use instead)
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$GLOBALS['pg4wp_ttr'] = array(
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'bigint(20)' => 'bigint',
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'bigint(10)' => 'int',
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'int(11)' => 'int',
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'tinytext' => 'text',
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'mediumtext' => 'text',
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'longtext' => 'text',
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'unsigned' => '',
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'gmt datetime NOT NULL default \'0000-00-00 00:00:00\'' => 'gmt timestamp NOT NULL DEFAULT timezone(\'gmt\'::text, now())',
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'default \'0000-00-00 00:00:00\'' => 'DEFAULT now()',
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'datetime' => 'timestamp',
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'DEFAULT CHARACTER SET utf8' => '',
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// WP 2.7.1 compatibility
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'int(4)' => 'smallint',
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// ZdMultiLang support hack
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'term_id varchar(5)' => 'term_id int',
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'BIGINT(20)' => 'int',
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'character set utf8' => '',
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'CHARACTER SET utf8' => '',
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'UNSIGNED' => '', // ZdMultilang 1.2.5
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);
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// Load up upgrade and install functions as required
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if( defined( 'WP_INSTALLING') && WP_INSTALLING)
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require_once( PG4WP_ROOT.'/driver_pgsql_install.php');
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// Initializing some variables
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$GLOBALS['pg4wp_result'] = 0;
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$GLOBALS['pg4wp_numrows'] = '10';
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@@ -275,152 +254,8 @@
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$logto = 'SHOWTABLES';
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$sql = 'SELECT tablename FROM pg_tables WHERE schemaname = \'public\';';
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}
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// SHOW INDEX emulation
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elseif( 0 === strpos( $sql, 'SHOW INDEX'))
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{
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$logto = 'SHOWINDEX';
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$pattern = '/SHOW INDEX FROM\s+(\w+)/';
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preg_match( $pattern, $sql, $matches);
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$table = $matches[1];
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$sql = 'SELECT bc.relname AS "Table",
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CASE WHEN i.indisunique THEN \'0\' ELSE \'1\' END AS "Non_unique",
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CASE WHEN i.indisprimary THEN \'PRIMARY\' WHEN bc.relname LIKE \'%usermeta\' AND ic.relname = \'umeta_key\' THEN \'meta_key\' ELSE ic.relname END AS "Key_name",
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a.attname AS "Column_name",
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NULL AS "Sub_part"
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FROM pg_class bc, pg_class ic, pg_index i, pg_attribute a
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WHERE bc.oid = i.indrelid
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AND ic.oid = i.indexrelid
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AND (i.indkey[0] = a.attnum OR i.indkey[1] = a.attnum OR i.indkey[2] = a.attnum OR i.indkey[3] = a.attnum OR i.indkey[4] = a.attnum OR i.indkey[5] = a.attnum OR i.indkey[6] = a.attnum OR i.indkey[7] = a.attnum)
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AND a.attrelid = bc.oid
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AND bc.relname = \''.$table.'\'
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ORDER BY a.attname;';
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}
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// Table alteration
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elseif( 0 === strpos( $sql, 'ALTER TABLE'))
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{
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$logto = 'ALTER';
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$pattern = '/ALTER TABLE\s+(\w+)\s+CHANGE COLUMN\s+([^\s]+)\s+([^\s]+)\s+([^ ]+)( unsigned|)\s+(NOT NULL|)\s*(default (.+)|)/';
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if( 1 === preg_match( $pattern, $sql, $matches))
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{
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$table = $matches[1];
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$col = $matches[2];
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$newname = $matches[3];
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$type = $matches[4];
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if( isset($GLOBALS['pg4wp_ttr'][$type]))
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$type = $GLOBALS['pg4wp_ttr'][$type];
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$unsigned = $matches[5];
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$notnull = $matches[6];
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$default = $matches[7];
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$defval = $matches[8];
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if( isset($GLOBALS['pg4wp_ttr'][$defval]))
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$defval = $GLOBALS['pg4wp_ttr'][$defval];
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$newq = "ALTER TABLE $table ALTER COLUMN $col TYPE $type";
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if( !empty($notnull))
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$newq .= ", ALTER COLUMN $col SET NOT NULL";
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if( !empty($default))
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$newq .= ", ALTER COLUMN $col SET DEFAULT $defval";
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if( $col != $newname)
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$newq .= ";ALTER TABLE $table RENAME COLUMN $col TO $newcol;";
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$sql = $newq;
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}
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$pattern = '/ALTER TABLE\s+(\w+)\s+ADD (UNIQUE |)KEY\s+([^\s]+)\s+\(([^\)]+)\)/';
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if( 1 === preg_match( $pattern, $sql, $matches))
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{
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$table = $matches[1];
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$unique = $matches[2];
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$index = $matches[3];
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$columns = $matches[4];
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// Workaround for index name duplicate
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$index = $table.'_'.$index;
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$sql = "CREATE {$unique}INDEX $index ON $table ($columns)";
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}
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$pattern = '/ALTER TABLE\s+(\w+)\s+DROP INDEX\s+([^\s]+)/';
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if( 1 === preg_match( $pattern, $sql, $matches))
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{
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$table = $matches[1];
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$index = $matches[2];
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$sql = "DROP INDEX ${table}_${index}";
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}
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$pattern = '/ALTER TABLE\s+(\w+)\s+DROP PRIMARY KEY/';
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if( 1 === preg_match( $pattern, $sql, $matches))
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{
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$table = $matches[1];
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$sql = "ALTER TABLE ${table} DROP CONSTRAINT ${table}_pkey";
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}
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}
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// Table description
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elseif( 0 === strpos( $sql, 'DESCRIBE'))
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{
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$logto = 'DESCRIBE';
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preg_match( '/DESCRIBE\s+(\w+)/', $sql, $matches);
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$table_name = $matches[1];
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$sql = "SELECT pg_attribute.attname AS \"Field\",
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CASE pg_type.typname
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WHEN 'int2' THEN 'int(4)'
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WHEN 'int4' THEN 'int(11)'
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WHEN 'int8' THEN 'bigint(20) unsigned'
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WHEN 'varchar' THEN 'varchar(' || pg_attribute.atttypmod-4 || ')'
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WHEN 'timestamp' THEN 'datetime'
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WHEN 'text' THEN 'longtext'
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ELSE pg_type.typname
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END AS \"Type\",
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CASE WHEN pg_attribute.attnotnull THEN ''
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ELSE 'YES'
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END AS \"Null\",
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CASE pg_type.typname
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WHEN 'varchar' THEN substring(pg_attrdef.adsrc FROM '^\'(.*)\'.*$')
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WHEN 'timestamp' THEN CASE WHEN pg_attrdef.adsrc LIKE '%now()%' THEN '0000-00-00 00:00:00' ELSE pg_attrdef.adsrc END
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ELSE pg_attrdef.adsrc
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END AS \"Default\"
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FROM pg_class
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INNER JOIN pg_attribute
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ON (pg_class.oid=pg_attribute.attrelid)
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INNER JOIN pg_type
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ON (pg_attribute.atttypid=pg_type.oid)
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LEFT JOIN pg_attrdef
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ON (pg_class.oid=pg_attrdef.adrelid AND pg_attribute.attnum=pg_attrdef.adnum)
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WHERE pg_class.relname='$table_name' AND pg_attribute.attnum>=1 AND NOT pg_attribute.attisdropped;";
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} // DESCRIBE
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// Fix table creations
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elseif( 0 === strpos($sql, 'CREATE TABLE'))
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{
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$logto = 'CREATE';
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$pattern = '/CREATE TABLE (\w+)/';
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preg_match($pattern, $sql, $matches);
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$table = $matches[1];
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// Remove trailing spaces
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$sql = trim( $sql).';';
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// Translate types and some other replacements
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$sql = str_replace(
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array_keys($GLOBALS['pg4wp_ttr']), array_values($GLOBALS['pg4wp_ttr']), $sql);
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// Fix auto_increment by adding a sequence
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$pattern = '/int[ ]+NOT NULL auto_increment/';
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preg_match($pattern, $sql, $matches);
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if($matches)
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{
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$seq = $table . '_seq';
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$sql = str_replace( 'NOT NULL auto_increment', "NOT NULL DEFAULT nextval('$seq'::text)", $sql);
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$sql .= "\nCREATE SEQUENCE $seq;";
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}
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// Support for INDEX creation
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$pattern = '/,\s+(UNIQUE |)KEY\s+([^\s]+)\s+\(([^\)]+)\)/';
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if( preg_match_all( $pattern, $sql, $matches, PREG_SET_ORDER))
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foreach( $matches as $match)
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{
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$unique = $match[1];
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$index = $match[2];
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$columns = $match[3];
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// Workaround for index name duplicate
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$index = $table.'_'.$index;
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$sql .= "\nCREATE {$unique}INDEX $index ON $table ($columns);";
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}
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// Now remove handled indexes
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$sql = preg_replace( $pattern, '', $sql);
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}// CREATE TABLE
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elseif( defined('WP_INSTALLING') && WP_INSTALLING)
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$sql = pg4wp_installing( $sql, $logto);
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// Field names with CAPITALS need special handling
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if( false !== strpos($sql, 'ID'))
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189
pg4wp/driver_pgsql_install.php
Normal file
189
pg4wp/driver_pgsql_install.php
Normal file
@@ -0,0 +1,189 @@
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<?php
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/**
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* @package PostgreSQL_For_Wordpress
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* @version $Id$
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* @author Hawk__, www.hawkix.net
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*/
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/**
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* This file registers functions used only when installing or upgrading WordPress
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*/
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// List of types translations (the key is the mysql one, the value is the text to use instead)
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$GLOBALS['pg4wp_ttr'] = array(
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'bigint(20)' => 'bigint',
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'bigint(10)' => 'int',
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'int(11)' => 'int',
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'tinytext' => 'text',
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'mediumtext' => 'text',
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'longtext' => 'text',
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'unsigned' => '',
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'gmt datetime NOT NULL default \'0000-00-00 00:00:00\'' => 'gmt timestamp NOT NULL DEFAULT timezone(\'gmt\'::text, now())',
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'default \'0000-00-00 00:00:00\'' => 'DEFAULT now()',
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'datetime' => 'timestamp',
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'DEFAULT CHARACTER SET utf8' => '',
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// WP 2.7.1 compatibility
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'int(4)' => 'smallint',
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// ZdMultiLang support hack
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'term_id varchar(5)' => 'term_id int',
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'BIGINT(20)' => 'int',
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'character set utf8' => '',
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'CHARACTER SET utf8' => '',
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'UNSIGNED' => '', // ZdMultilang 1.2.5
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);
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function pg4wp_installing( $sql, &$logto)
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{
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global $table_prefix;
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// SHOW INDEX emulation
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if( 0 === strpos( $sql, 'SHOW INDEX'))
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{
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$logto = 'SHOWINDEX';
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$pattern = '/SHOW INDEX FROM\s+(\w+)/';
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preg_match( $pattern, $sql, $matches);
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$table = $matches[1];
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$sql = 'SELECT bc.relname AS "Table",
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CASE WHEN i.indisunique THEN \'0\' ELSE \'1\' END AS "Non_unique",
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CASE WHEN i.indisprimary THEN \'PRIMARY\' WHEN bc.relname LIKE \'%usermeta\' AND ic.relname = \'umeta_key\' THEN \'meta_key\' ELSE ic.relname END AS "Key_name",
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a.attname AS "Column_name",
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NULL AS "Sub_part"
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FROM pg_class bc, pg_class ic, pg_index i, pg_attribute a
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WHERE bc.oid = i.indrelid
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AND ic.oid = i.indexrelid
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AND (i.indkey[0] = a.attnum OR i.indkey[1] = a.attnum OR i.indkey[2] = a.attnum OR i.indkey[3] = a.attnum OR i.indkey[4] = a.attnum OR i.indkey[5] = a.attnum OR i.indkey[6] = a.attnum OR i.indkey[7] = a.attnum)
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AND a.attrelid = bc.oid
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AND bc.relname = \''.$table.'\'
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ORDER BY a.attname;';
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}
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// Table alteration
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elseif( 0 === strpos( $sql, 'ALTER TABLE'))
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{
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$logto = 'ALTER';
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$pattern = '/ALTER TABLE\s+(\w+)\s+CHANGE COLUMN\s+([^\s]+)\s+([^\s]+)\s+([^ ]+)( unsigned|)\s+(NOT NULL|)\s*(default (.+)|)/';
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if( 1 === preg_match( $pattern, $sql, $matches))
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{
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$table = $matches[1];
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$col = $matches[2];
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$newname = $matches[3];
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$type = $matches[4];
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if( isset($GLOBALS['pg4wp_ttr'][$type]))
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$type = $GLOBALS['pg4wp_ttr'][$type];
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$unsigned = $matches[5];
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$notnull = $matches[6];
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$default = $matches[7];
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$defval = $matches[8];
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if( isset($GLOBALS['pg4wp_ttr'][$defval]))
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$defval = $GLOBALS['pg4wp_ttr'][$defval];
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$newq = "ALTER TABLE $table ALTER COLUMN $col TYPE $type";
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if( !empty($notnull))
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$newq .= ", ALTER COLUMN $col SET NOT NULL";
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if( !empty($default))
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$newq .= ", ALTER COLUMN $col SET DEFAULT $defval";
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if( $col != $newname)
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$newq .= ";ALTER TABLE $table RENAME COLUMN $col TO $newcol;";
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$sql = $newq;
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}
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$pattern = '/ALTER TABLE\s+(\w+)\s+ADD (UNIQUE |)KEY\s+([^\s]+)\s+\(([^\)]+)\)/';
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if( 1 === preg_match( $pattern, $sql, $matches))
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{
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$table = $matches[1];
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$unique = $matches[2];
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$index = $matches[3];
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$columns = $matches[4];
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// Workaround for index name duplicate
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$index = $table.'_'.$index;
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$sql = "CREATE {$unique}INDEX $index ON $table ($columns)";
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}
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$pattern = '/ALTER TABLE\s+(\w+)\s+DROP INDEX\s+([^\s]+)/';
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if( 1 === preg_match( $pattern, $sql, $matches))
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{
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$table = $matches[1];
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$index = $matches[2];
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$sql = "DROP INDEX ${table}_${index}";
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}
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$pattern = '/ALTER TABLE\s+(\w+)\s+DROP PRIMARY KEY/';
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if( 1 === preg_match( $pattern, $sql, $matches))
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{
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$table = $matches[1];
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$sql = "ALTER TABLE ${table} DROP CONSTRAINT ${table}_pkey";
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}
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}
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// Table description
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elseif( 0 === strpos( $sql, 'DESCRIBE'))
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{
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$logto = 'DESCRIBE';
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preg_match( '/DESCRIBE\s+(\w+)/', $sql, $matches);
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$table_name = $matches[1];
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$sql = "SELECT pg_attribute.attname AS \"Field\",
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CASE pg_type.typname
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WHEN 'int2' THEN 'int(4)'
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WHEN 'int4' THEN 'int(11)'
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WHEN 'int8' THEN 'bigint(20) unsigned'
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WHEN 'varchar' THEN 'varchar(' || pg_attribute.atttypmod-4 || ')'
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WHEN 'timestamp' THEN 'datetime'
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WHEN 'text' THEN 'longtext'
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ELSE pg_type.typname
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END AS \"Type\",
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CASE WHEN pg_attribute.attnotnull THEN ''
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ELSE 'YES'
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END AS \"Null\",
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CASE pg_type.typname
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WHEN 'varchar' THEN substring(pg_attrdef.adsrc FROM '^\'(.*)\'.*$')
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WHEN 'timestamp' THEN CASE WHEN pg_attrdef.adsrc LIKE '%now()%' THEN '0000-00-00 00:00:00' ELSE pg_attrdef.adsrc END
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ELSE pg_attrdef.adsrc
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END AS \"Default\"
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FROM pg_class
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INNER JOIN pg_attribute
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ON (pg_class.oid=pg_attribute.attrelid)
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INNER JOIN pg_type
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ON (pg_attribute.atttypid=pg_type.oid)
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LEFT JOIN pg_attrdef
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ON (pg_class.oid=pg_attrdef.adrelid AND pg_attribute.attnum=pg_attrdef.adnum)
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WHERE pg_class.relname='$table_name' AND pg_attribute.attnum>=1 AND NOT pg_attribute.attisdropped;";
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} // DESCRIBE
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// Fix table creations
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elseif( 0 === strpos($sql, 'CREATE TABLE'))
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{
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$logto = 'CREATE';
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$pattern = '/CREATE TABLE (\w+)/';
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preg_match($pattern, $sql, $matches);
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$table = $matches[1];
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// Remove trailing spaces
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$sql = trim( $sql).';';
|
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|
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// Translate types and some other replacements
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$sql = str_replace(
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array_keys($GLOBALS['pg4wp_ttr']), array_values($GLOBALS['pg4wp_ttr']), $sql);
|
||||
|
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// Fix auto_increment by adding a sequence
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$pattern = '/int[ ]+NOT NULL auto_increment/';
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preg_match($pattern, $sql, $matches);
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if($matches)
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{
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$seq = $table . '_seq';
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$sql = str_replace( 'NOT NULL auto_increment', "NOT NULL DEFAULT nextval('$seq'::text)", $sql);
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$sql .= "\nCREATE SEQUENCE $seq;";
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}
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// Support for INDEX creation
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$pattern = '/,\s+(UNIQUE |)KEY\s+([^\s]+)\s+\(([^\)]+)\)/';
|
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if( preg_match_all( $pattern, $sql, $matches, PREG_SET_ORDER))
|
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foreach( $matches as $match)
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{
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$unique = $match[1];
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$index = $match[2];
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$columns = $match[3];
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// Workaround for index name duplicate
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$index = $table.'_'.$index;
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$sql .= "\nCREATE {$unique}INDEX $index ON $table ($columns);";
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}
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// Now remove handled indexes
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$sql = preg_replace( $pattern, '', $sql);
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}// CREATE TABLE
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return $sql;
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}
|
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@@ -50,6 +50,8 @@ There is no screenshot for this plugin
|
||||
|
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== Changelog ==
|
||||
|
||||
* Moved parts required only when installing/upgrading from driver_pgsql.php to a separate file
|
||||
The file is loaded only when needed so that memory footprint should be a bit smaller
|
||||
* Added UNIX_TIMESTAMP support
|
||||
* Added DAYOFMONTH support (Thanks to Pete Deffendol for noticing the problem)
|
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* Upgrading from WP 2.8.6 to WP 2.9.1 works with a minor error
|
||||
|
||||
Reference in New Issue
Block a user