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< ? php
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$drivers [ " pgsql " ] = " PostgreSQL " ;
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if ( isset ( $_GET [ " pgsql " ])) {
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$possible_drivers = array ( " PgSQL " , " PDO_PgSQL " );
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define ( " DRIVER " , " pgsql " );
if ( extension_loaded ( " pgsql " )) {
class Min_DB {
var $extension = " PgSQL " , $_link , $_result , $_string , $_database = true , $server_info , $affected_rows , $error ;
function _error ( $errno , $error ) {
if ( ini_bool ( " html_errors " )) {
$error = html_entity_decode ( strip_tags ( $error ));
}
$error = ereg_replace ( '^[^:]*: ' , '' , $error );
$this -> error = $error ;
}
function connect ( $server , $username , $password ) {
set_error_handler ( array ( $this , '_error' ));
$this -> _string = " host=' " . str_replace ( " : " , " ' port=' " , addcslashes ( $server , " ' \\ " )) . " ' user=' " . addcslashes ( $username , " ' \\ " ) . " ' password=' " . addcslashes ( $password , " ' \\ " ) . " ' " ;
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$this -> _link = @ pg_connect ( $this -> _string . ( DB != " " ? " dbname=' " . addcslashes ( DB , " ' \\ " ) . " ' " : " dbname='template1' " ), PGSQL_CONNECT_FORCE_NEW );
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if ( ! $this -> _link && DB != " " ) {
// try to connect directly with database for performance
$this -> _database = false ;
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$this -> _link = @ pg_connect ( " $this->_string dbname='template1' " , PGSQL_CONNECT_FORCE_NEW );
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}
restore_error_handler ();
if ( $this -> _link ) {
$version = pg_version ( $this -> _link );
$this -> server_info = $version [ " server " ];
pg_set_client_encoding ( $this -> _link , " UTF8 " );
}
return ( bool ) $this -> _link ;
}
function quote ( $string ) {
return " ' " . pg_escape_string ( $this -> _link , $string ) . " ' " ; //! bytea
}
function select_db ( $database ) {
if ( $database == DB ) {
return $this -> _database ;
}
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$return = @ pg_connect ( " $this->_string dbname=' " . addcslashes ( $database , " ' \\ " ) . " ' " , PGSQL_CONNECT_FORCE_NEW );
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if ( $return ) {
$this -> _link = $return ;
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}
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return $return ;
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}
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function close () {
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$this -> _link = @ pg_connect ( " $this->_string dbname='template1' " );
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}
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function query ( $query , $unbuffered = false ) {
$result = @ pg_query ( $this -> _link , $query );
if ( ! $result ) {
$this -> error = pg_last_error ( $this -> _link );
return false ;
} elseif ( ! pg_num_fields ( $result )) {
$this -> affected_rows = pg_affected_rows ( $result );
return true ;
}
return new Min_Result ( $result );
}
function multi_query ( $query ) {
return $this -> _result = $this -> query ( $query );
}
function store_result () {
return $this -> _result ;
}
function next_result () {
// PgSQL extension doesn't support multiple results
return false ;
}
function result ( $query , $field = 0 ) {
$result = $this -> query ( $query );
if ( ! $result ) {
return false ;
}
return pg_fetch_result ( $result -> _result , 0 , $field );
}
}
class Min_Result {
var $_result , $_offset = 0 , $num_rows ;
function Min_Result ( $result ) {
$this -> _result = $result ;
$this -> num_rows = pg_num_rows ( $result );
}
function fetch_assoc () {
return pg_fetch_assoc ( $this -> _result );
}
function fetch_row () {
return pg_fetch_row ( $this -> _result );
}
function fetch_field () {
$column = $this -> _offset ++ ;
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$return = new stdClass ;
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if ( function_exists ( 'pg_field_table' )) {
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$return -> orgtable = pg_field_table ( $this -> _result , $column );
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}
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$return -> name = pg_field_name ( $this -> _result , $column );
$return -> orgname = $return -> name ;
$return -> type = pg_field_type ( $this -> _result , $column );
$return -> charsetnr = ( $return -> type == " bytea " ? 63 : 0 ); // 63 - binary
return $return ;
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}
function __destruct () {
pg_free_result ( $this -> _result );
}
}
} elseif ( extension_loaded ( " pdo_pgsql " )) {
class Min_DB extends Min_PDO {
var $extension = " PDO_PgSQL " ;
function connect ( $server , $username , $password ) {
$string = " pgsql:host=' " . str_replace ( " : " , " ' port=' " , addcslashes ( $server , " ' \\ " )) . " ' options='-c client_encoding=utf8' " ;
$this -> dsn ( $string . ( DB != " " ? " dbname=' " . addcslashes ( DB , " ' \\ " ) . " ' " : " " ), $username , $password );
//! connect without DB in case of an error
return true ;
}
function select_db ( $database ) {
return ( DB == $database );
}
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function close () {
}
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}
}
function idf_escape ( $idf ) {
return '"' . str_replace ( '"' , '""' , $idf ) . '"' ;
}
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function table ( $idf ) {
return idf_escape ( $idf );
}
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function connect () {
global $adminer ;
$connection = new Min_DB ;
$credentials = $adminer -> credentials ();
if ( $connection -> connect ( $credentials [ 0 ], $credentials [ 1 ], $credentials [ 2 ])) {
return $connection ;
}
return $connection -> error ;
}
function get_databases () {
return get_vals ( " SELECT datname FROM pg_database " );
}
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function limit ( $query , $where , $limit , $offset = 0 , $separator = " " ) {
return " $query $where " . ( isset ( $limit ) ? $separator . " LIMIT $limit " . ( $offset ? " OFFSET $offset " : " " ) : " " );
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}
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function limit1 ( $query , $where ) {
return " $query $where " ;
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}
function db_collation ( $db , $collations ) {
global $connection ;
return $connection -> result ( " SHOW LC_COLLATE " ); //! respect $db
}
function engines () {
return array ();
}
function logged_user () {
global $connection ;
return $connection -> result ( " SELECT user " );
}
function tables_list () {
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return get_key_vals ( " SELECT table_name, table_type FROM information_schema.tables WHERE table_schema = current_schema() ORDER BY table_name " );
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}
function count_tables ( $databases ) {
return array (); // would require reconnect
}
function table_status ( $name = " " ) {
$return = array ();
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foreach ( get_rows ( " SELECT relname AS \" Name \" , CASE relkind WHEN 'r' THEN '' ELSE 'view' END AS \" Engine \" , pg_relation_size(oid) AS \" Data_length \" , pg_total_relation_size(oid) - pg_relation_size(oid) AS \" Index_length \" , obj_description(oid, 'pg_class') AS \" Comment \"
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FROM pg_class
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WHERE relkind IN ( 'r' , 'v' )
AND relnamespace = ( SELECT oid FROM pg_namespace WHERE nspname = current_schema ()) "
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. ( $name != " " ? " AND relname = " . q ( $name ) : " " )
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) as $row ) { //! Index_length, Auto_increment
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$return [ $row [ " Name " ]] = $row ;
}
return ( $name != " " ? $return [ $name ] : $return );
}
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function is_view ( $table_status ) {
return $table_status [ " Engine " ] == " view " ;
}
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function fk_support ( $table_status ) {
return true ;
}
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function fields ( $table ) {
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$return = array ();
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foreach ( get_rows ( " SELECT a.attname AS field, format_type(a.atttypid, a.atttypmod) AS full_type, d.adsrc AS default, a.attnotnull, col_description(c.oid, a.attnum) AS comment
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FROM pg_class c
JOIN pg_namespace n ON c . relnamespace = n . oid
JOIN pg_attribute a ON c . oid = a . attrelid
LEFT JOIN pg_attrdef d ON c . oid = d . adrelid AND a . attnum = d . adnum
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WHERE c . relname = " . q( $table ) . "
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AND n . nspname = current_schema ()
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AND NOT a . attisdropped
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AND a . attnum > 0
ORDER BY a . attnum "
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) as $row ) {
//! collation, primary
ereg ( '(.*)(\\((.*)\\))?' , $row [ " full_type " ], $match );
list (, $row [ " type " ], , $row [ " length " ]) = $match ;
$row [ " full_type " ] = $row [ " type " ] . ( $row [ " length " ] ? " ( $row[length] ) " : " " );
$row [ " null " ] = ( $row [ " attnotnull " ] == " f " );
$row [ " auto_increment " ] = eregi ( " ^nextval \\ ( " , $row [ " default " ]);
$row [ " privileges " ] = array ( " insert " => 1 , " select " => 1 , " update " => 1 );
$return [ $row [ " field " ]] = $row ;
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}
return $return ;
}
function indexes ( $table , $connection2 = null ) {
global $connection ;
if ( ! is_object ( $connection2 )) {
$connection2 = $connection ;
}
$return = array ();
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$table_oid = $connection2 -> result ( " SELECT oid FROM pg_class WHERE relname = " . q ( $table ));
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$columns = get_key_vals ( " SELECT attnum, attname FROM pg_attribute WHERE attrelid = $table_oid AND attnum > 0 " , $connection2 );
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foreach ( get_rows ( " SELECT relname, indisunique, indisprimary, indkey FROM pg_index i, pg_class ci WHERE i.indrelid = $table_oid AND ci.oid = i.indexrelid " , $connection2 ) as $row ) {
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$return [ $row [ " relname " ]][ " type " ] = ( $row [ " indisprimary " ] == " t " ? " PRIMARY " : ( $row [ " indisunique " ] == " t " ? " UNIQUE " : " INDEX " ));
$return [ $row [ " relname " ]][ " columns " ] = array ();
foreach ( explode ( " " , $row [ " indkey " ]) as $indkey ) {
$return [ $row [ " relname " ]][ " columns " ][] = $columns [ $indkey ];
}
$return [ $row [ " relname " ]][ " lengths " ] = array ();
}
return $return ;
}
function foreign_keys ( $table ) {
$return = array ();
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foreach ( get_rows ( " SELECT tc.constraint_name, kcu.column_name, rc.update_rule AS on_update, rc.delete_rule AS on_delete, ccu.table_name AS table, ccu.column_name AS ref
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FROM information_schema . table_constraints tc
LEFT JOIN information_schema . key_column_usage kcu USING ( constraint_catalog , constraint_schema , constraint_name )
LEFT JOIN information_schema . referential_constraints rc USING ( constraint_catalog , constraint_schema , constraint_name )
LEFT JOIN information_schema . constraint_column_usage ccu ON rc . unique_constraint_catalog = ccu . constraint_catalog AND rc . unique_constraint_schema = ccu . constraint_schema AND rc . unique_constraint_name = ccu . constraint_name
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WHERE tc . constraint_type = 'FOREIGN KEY' AND tc . table_name = " . q( $table ) //! there can be more unique_constraint_name
) as $row ) {
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$foreign_key = & $return [ $row [ " constraint_name " ]];
if ( ! $foreign_key ) {
$foreign_key = $row ;
}
$foreign_key [ " source " ][] = $row [ " column_name " ];
$foreign_key [ " target " ][] = $row [ " ref " ];
}
return $return ;
}
function view ( $name ) {
global $connection ;
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return array ( " select " => $connection -> result ( " SELECT pg_get_viewdef( " . q ( $name ) . " ) " ));
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}
function collations () {
//! supported in CREATE DATABASE
return array ();
}
function information_schema ( $db ) {
return ( $db == " information_schema " );
}
function error () {
global $connection ;
$return = h ( $connection -> error );
if ( preg_match ( '~^(.*\\n)?([^\\n]*)\\n( *)\\^(\\n.*)?$~s' , $return , $match )) {
$return = $match [ 1 ] . preg_replace ( '~((?:[^&]|&[^;]*;){' . strlen ( $match [ 3 ]) . '})(.*)~' , '\\1<b>\\2</b>' , $match [ 2 ]) . $match [ 4 ];
}
return nl_br ( $return );
}
function exact_value ( $val ) {
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return q ( $val );
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}
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function create_database ( $db , $collation ) {
return queries ( " CREATE DATABASE " . idf_escape ( $db ) . ( $collation ? " ENCODING " . idf_escape ( $collation ) : " " ));
}
function drop_databases ( $databases ) {
global $connection ;
$connection -> close ();
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return apply_queries ( " DROP DATABASE " , $databases , 'idf_escape' );
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}
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function rename_database ( $name , $collation ) {
//! current database cannot be renamed
return queries ( " ALTER DATABASE " . idf_escape ( DB ) . " RENAME TO " . idf_escape ( $name ));
}
function auto_increment () {
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return " " ;
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}
function alter_table ( $table , $name , $fields , $foreign , $comment , $engine , $collation , $auto_increment , $partitioning ) {
$alter = array ();
$queries = array ();
foreach ( $fields as $field ) {
$column = idf_escape ( $field [ 0 ]);
$val = $field [ 1 ];
if ( ! $val ) {
$alter [] = " DROP $column " ;
} else {
$val5 = $val [ 5 ];
unset ( $val [ 5 ]);
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if ( isset ( $val [ 6 ]) && $field [ 0 ] == " " ) { // auto_increment
$val [ 1 ] = ( $val [ 1 ] == " bigint " ? " big " : " " ) . " serial " ;
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}
if ( $field [ 0 ] == " " ) {
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$alter [] = ( $table != " " ? " ADD " : " " ) . implode ( $val );
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} else {
if ( $column != $val [ 0 ]) {
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$queries [] = " ALTER TABLE " . table ( $table ) . " RENAME $column TO $val[0] " ;
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}
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$alter [] = " ALTER $column TYPE $val[1] " ;
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if ( ! $val [ 6 ]) {
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$alter [] = " ALTER $column " . ( $val [ 3 ] ? " SET $val[3] " : " DROP DEFAULT " ); //! quoting
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$alter [] = " ALTER $column " . ( $val [ 2 ] == " NULL " ? " DROP NOT " : " SET " ) . $val [ 2 ];
}
}
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if ( $field [ 0 ] != " " || $val5 != " " ) {
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$queries [] = " COMMENT ON COLUMN " . table ( $table ) . " . $val[0] IS " . ( $val5 != " " ? substr ( $val5 , 9 ) : " '' " );
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}
}
}
$alter = array_merge ( $alter , $foreign );
if ( $table == " " ) {
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array_unshift ( $queries , " CREATE TABLE " . table ( $name ) . " ( \n " . implode ( " , \n " , $alter ) . " \n ) " );
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} elseif ( $alter ) {
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array_unshift ( $queries , " ALTER TABLE " . table ( $table ) . " \n " . implode ( " , \n " , $alter ));
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}
if ( $table != " " && $table != $name ) {
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$queries [] = " ALTER TABLE " . table ( $table ) . " RENAME TO " . table ( $name );
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}
if ( $table != " " || $comment != " " ) {
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$queries [] = " COMMENT ON TABLE " . table ( $name ) . " IS " . q ( $comment );
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}
if ( $auto_increment != " " ) {
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//! $queries[] = "SELECT setval(pg_get_serial_sequence(" . q($name) . ", ), $auto_increment)";
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}
foreach ( $queries as $query ) {
if ( ! queries ( $query )) {
return false ;
}
}
return true ;
}
function alter_indexes ( $table , $alter ) {
$create = array ();
$drop = array ();
foreach ( $alter as $val ) {
if ( $val [ 0 ] != " INDEX " ) {
$create [] = ( $val [ 2 ] ? " \n DROP CONSTRAINT " : " \n ADD $val[0] " . ( $val [ 0 ] == " PRIMARY " ? " KEY " : " " )) . $val [ 1 ];
} elseif ( $val [ 2 ]) {
$drop [] = $val [ 1 ];
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} elseif ( ! queries ( " CREATE INDEX " . idf_escape ( uniqid ( $table . " _ " )) . " ON " . table ( $table ) . " $val[1] " )) {
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return false ;
}
}
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return (( ! $create || queries ( " ALTER TABLE " . table ( $table ) . implode ( " , " , $create )))
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&& ( ! $drop || queries ( " DROP INDEX " . implode ( " , " , $drop )))
);
}
function truncate_tables ( $tables ) {
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return queries ( " TRUNCATE " . implode ( " , " , array_map ( 'table' , $tables )));
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return true ;
}
function drop_views ( $views ) {
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return queries ( " DROP VIEW " . implode ( " , " , array_map ( 'table' , $views )));
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}
function drop_tables ( $tables ) {
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return queries ( " DROP TABLE " . implode ( " , " , array_map ( 'table' , $tables )));
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}
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function move_tables ( $tables , $views , $target ) {
foreach ( $tables as $table ) {
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if ( ! queries ( " ALTER TABLE " . table ( $table ) . " SET SCHEMA " . idf_escape ( $target ))) {
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return false ;
}
}
foreach ( $views as $table ) {
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if ( ! queries ( " ALTER VIEW " . table ( $table ) . " SET SCHEMA " . idf_escape ( $target ))) {
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return false ;
}
}
return true ;
}
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function trigger ( $name ) {
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$rows = get_rows ( 'SELECT trigger_name AS "Trigger", condition_timing AS "Timing", event_manipulation AS "Event", \'FOR EACH \' || action_orientation AS "Type", action_statement AS "Statement" FROM information_schema.triggers WHERE event_object_table = ' . q ( $_GET [ " trigger " ]) . ' AND trigger_name = ' . q ( $name ));
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return reset ( $rows );
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}
function triggers ( $table ) {
$return = array ();
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foreach ( get_rows ( " SELECT * FROM information_schema.triggers WHERE event_object_table = " . q ( $table )) as $row ) {
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$return [ $row [ " trigger_name " ]] = array ( $row [ " condition_timing " ], $row [ " event_manipulation " ]);
}
return $return ;
}
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function trigger_options () {
return array (
" Timing " => array ( " BEFORE " , " AFTER " ),
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" Type " => array ( " FOR EACH ROW " , " FOR EACH STATEMENT " ),
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);
}
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function begin () {
return queries ( " BEGIN " );
}
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function insert_into ( $table , $set ) {
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return queries ( " INSERT INTO " . table ( $table ) . ( $set ? " ( " . implode ( " , " , array_keys ( $set )) . " ) \n VALUES ( " . implode ( " , " , $set ) . " ) " : " DEFAULT VALUES " ));
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}
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function insert_update ( $table , $set , $primary ) {
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global $connection ;
$update = array ();
$where = array ();
foreach ( $set as $key => $val ) {
$update [] = " $key = $val " ;
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if ( isset ( $primary [ idf_unescape ( $key )])) {
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$where [] = " $key = $val " ;
}
}
return ( $where && queries ( " UPDATE " . table ( $table ) . " SET " . implode ( " , " , $update ) . " WHERE " . implode ( " AND " , $where )) && $connection -> affected_rows )
|| queries ( " INSERT INTO " . table ( $table ) . " ( " . implode ( " , " , array_keys ( $set )) . " ) VALUES ( " . implode ( " , " , $set ) . " ) " )
;
}
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function last_id () {
return 0 ; // there can be several sequences
}
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function explain ( $connection , $query ) {
return $connection -> query ( " EXPLAIN $query " );
}
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function types () {
return get_vals ( " SELECT typname
FROM pg_type
WHERE typnamespace = ( SELECT oid FROM pg_namespace WHERE nspname = current_schema ())
AND typtype IN ( 'b' , 'd' , 'e' )
AND typelem = 0 "
);
}
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function schemas () {
return get_vals ( " SELECT nspname FROM pg_namespace " );
}
function get_schema () {
global $connection ;
return $connection -> result ( " SELECT current_schema() " );
}
function set_schema ( $schema ) {
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global $connection , $types , $structured_types ;
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$return = $connection -> query ( " SET search_path TO " . idf_escape ( $schema ));
foreach ( types () as $type ) { //! get types from current_schemas('t')
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if ( ! isset ( $types [ $type ])) {
$types [ $type ] = 0 ;
$structured_types [ lang ( 'User types' )][] = $type ;
}
}
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return $return ;
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}
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function use_sql ( $database ) {
return " \ connect " . idf_escape ( $database );
}
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function show_variables () {
return get_key_vals ( " SHOW ALL " );
}
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function show_status () {
}
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function support ( $feature ) {
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return ereg ( '^(comment|view|scheme|sequence|trigger|type|variables|drop_col)$' , $feature ); //! routine|
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}
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$jush = " pgsql " ;
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$types = array ();
$structured_types = array ();
foreach ( array ( //! arrays
lang ( 'Numbers' ) => array ( " smallint " => 5 , " integer " => 10 , " bigint " => 19 , " boolean " => 1 , " numeric " => 0 , " real " => 7 , " double precision " => 16 , " money " => 20 ),
lang ( 'Date and time' ) => array ( " date " => 13 , " time " => 17 , " timestamp " => 20 , " interval " => 0 ),
lang ( 'Strings' ) => array ( " character " => 0 , " character varying " => 0 , " text " => 0 , " tsquery " => 0 , " tsvector " => 0 , " uuid " => 0 , " xml " => 0 ),
lang ( 'Binary' ) => array ( " bit " => 0 , " bit varying " => 0 , " bytea " => 0 ),
lang ( 'Network' ) => array ( " cidr " => 43 , " inet " => 43 , " macaddr " => 17 , " txid_snapshot " => 0 ),
lang ( 'Geometry' ) => array ( " box " => 0 , " circle " => 0 , " line " => 0 , " lseg " => 0 , " path " => 0 , " point " => 0 , " polygon " => 0 ),
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) as $key => $val ) { //! can be retrieved from pg_type
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$types += $val ;
$structured_types [ $key ] = array_keys ( $val );
}
$unsigned = array ();
$operators = array ( " = " , " < " , " > " , " <= " , " >= " , " != " , " ~ " , " !~ " , " LIKE " , " LIKE %% " , " IN " , " IS NULL " , " NOT LIKE " , " NOT IN " , " IS NOT NULL " );
$functions = array ( " char_length " , " lower " , " round " , " to_hex " , " to_timestamp " , " upper " );
$grouping = array ( " avg " , " count " , " count distinct " , " max " , " min " , " sum " );
$edit_functions = array (
array (
" char " => " md5 " ,
" date|time " => " now " ,
), array (
" int|numeric|real|money " => " +/- " ,
" date|time " => " + interval/- interval " , //! escape
" char|text " => " || " ,
)
);
}