git-svn-id: https://adminer.svn.sourceforge.net/svnroot/adminer/trunk@1471 7c3ca157-0c34-0410-bff1-cbf682f78f5c
455 lines
15 KiB
PHP
455 lines
15 KiB
PHP
<?php
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$possible_drivers[] = "PgSQL";
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$possible_drivers[] = "PDO_PgSQL";
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if (extension_loaded("pgsql") || extension_loaded("pdo_pgsql")) {
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$drivers["pgsql"] = "PostgreSQL";
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}
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if (isset($_GET["pgsql"])) {
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define("DRIVER", "pgsql");
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if (extension_loaded("pgsql")) {
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class Min_DB {
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var $extension = "PgSQL", $_link, $_result, $_string, $_database = true, $server_info, $affected_rows, $error;
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function _error($errno, $error) {
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if (ini_bool("html_errors")) {
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$error = html_entity_decode(strip_tags($error));
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}
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$error = ereg_replace('^[^:]*: ', '', $error);
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$this->error = $error;
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}
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function connect($server, $username, $password) {
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set_error_handler(array($this, '_error'));
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$this->_string = "host='" . str_replace(":", "' port='", addcslashes($server, "'\\")) . "' user='" . addcslashes($username, "'\\") . "' password='" . addcslashes($password, "'\\") . "'";
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$this->_link = @pg_connect($this->_string . (DB != "" ? " dbname='" . addcslashes(DB, "'\\") . "'" : ""), PGSQL_CONNECT_FORCE_NEW);
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if (!$this->_link && DB != "") {
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// try to connect directly with database for performance
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$this->_database = false;
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$this->_link = @pg_connect($this->_string, PGSQL_CONNECT_FORCE_NEW);
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}
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restore_error_handler();
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if ($this->_link) {
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$version = pg_version($this->_link);
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$this->server_info = $version["server"];
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pg_set_client_encoding($this->_link, "UTF8");
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}
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return (bool) $this->_link;
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}
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function quote($string) {
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return "'" . pg_escape_string($this->_link, $string) . "'"; //! bytea
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}
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function select_db($database) {
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if ($database == DB) {
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return $this->_database;
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}
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$link = @pg_connect($this->_connection . " dbname='" . addcslashes($database, "'\\") . "'", PGSQL_CONNECT_FORCE_NEW);
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if ($link) {
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$this->_link = $link;
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}
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return $link;
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}
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function query($query, $unbuffered = false) {
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$result = @pg_query($this->_link, $query);
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if (!$result) {
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$this->error = pg_last_error($this->_link);
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return false;
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} elseif (!pg_num_fields($result)) {
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$this->affected_rows = pg_affected_rows($result);
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return true;
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}
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return new Min_Result($result);
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}
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function multi_query($query) {
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return $this->_result = $this->query($query);
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}
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function store_result() {
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return $this->_result;
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}
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function next_result() {
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// PgSQL extension doesn't support multiple results
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return false;
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}
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function result($query, $field = 0) {
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$result = $this->query($query);
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if (!$result) {
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return false;
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}
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return pg_fetch_result($result->_result, 0, $field);
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}
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}
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class Min_Result {
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var $_result, $_offset = 0, $num_rows;
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function Min_Result($result) {
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$this->_result = $result;
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$this->num_rows = pg_num_rows($result);
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}
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function fetch_assoc() {
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return pg_fetch_assoc($this->_result);
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}
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function fetch_row() {
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return pg_fetch_row($this->_result);
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}
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function fetch_field() {
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$column = $this->_offset++;
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$row = new stdClass;
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if (function_exists('pg_field_table')) {
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$row->orgtable = pg_field_table($this->_result, $column);
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}
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$row->name = pg_field_name($this->_result, $column);
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$row->orgname = $row->name;
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$row->type = pg_field_type($this->_result, $column);
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$row->charsetnr = ($row->type == "bytea" ? 63 : 0); // 63 - binary
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return $row;
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}
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function __destruct() {
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pg_free_result($this->_result);
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}
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}
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} elseif (extension_loaded("pdo_pgsql")) {
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class Min_DB extends Min_PDO {
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var $extension = "PDO_PgSQL";
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function connect($server, $username, $password) {
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$string = "pgsql:host='" . str_replace(":", "' port='", addcslashes($server, "'\\")) . "' options='-c client_encoding=utf8'";
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$this->dsn($string . (DB != "" ? " dbname='" . addcslashes(DB, "'\\") . "'" : ""), $username, $password);
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//! connect without DB in case of an error
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return true;
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}
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function select_db($database) {
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return (DB == $database);
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}
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}
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}
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function idf_escape($idf) {
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return '"' . str_replace('"', '""', $idf) . '"';
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}
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function connect() {
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global $adminer;
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$connection = new Min_DB;
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$credentials = $adminer->credentials();
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if ($connection->connect($credentials[0], $credentials[1], $credentials[2])) {
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return $connection;
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}
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return $connection->error;
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}
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function get_databases() {
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return get_vals("SELECT datname FROM pg_database");
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}
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function limit($query, $limit, $offset = 0) {
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return " $query" . (isset($limit) ? "\nLIMIT $limit" . ($offset ? " OFFSET $offset" : "") : "");
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}
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function limit1($query) {
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return " $query";
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}
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function db_collation($db, $collations) {
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global $connection;
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return $connection->result("SHOW LC_COLLATE"); //! respect $db
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}
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function engines() {
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return array();
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}
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function logged_user() {
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global $connection;
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return $connection->result("SELECT user");
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}
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function tables_list() {
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global $connection;
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return get_key_vals("SELECT table_name, table_type FROM information_schema.tables WHERE table_schema = current_schema() ORDER BY table_name");
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}
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function count_tables($databases) {
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return array(); // would require reconnect
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}
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function table_status($name = "") {
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global $connection;
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$return = array();
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$result = $connection->query("SELECT relname AS \"Name\", CASE relkind WHEN 'r' THEN '' ELSE 'view' END AS \"Engine\", pg_relation_size(oid) AS \"Data_length\", pg_catalog.obj_description(oid, 'pg_class') AS \"Comment\"
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FROM pg_catalog.pg_class
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WHERE relkind IN ('r','v')
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AND relnamespace = (SELECT oid FROM pg_namespace WHERE nspname = current_schema())"
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. ($name != "" ? " AND relname = " . $connection->quote($name) : "")
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); //! Index_length, Auto_increment
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while ($row = $result->fetch_assoc()) {
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$return[$row["Name"]] = $row;
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}
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return ($name != "" ? $return[$name] : $return);
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}
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function fk_support($table_status) {
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return true;
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}
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function fields($table) {
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global $connection;
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$return = array();
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$table_oid = $connection->result("SELECT oid FROM pg_class WHERE relname = " . $connection->quote($table));
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$result = $connection->query("SELECT *, col_description($table_oid, ordinal_position) AS comment FROM information_schema.columns WHERE table_name = " . $connection->quote($table) . " ORDER BY ordinal_position");
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if ($result) {
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while ($row = $result->fetch_assoc()) {
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$length = $row["character_maximum_length"];
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$return[$row["column_name"]] = array(
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"field" => $row["column_name"],
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"full_type" => $row["data_type"] . ($length ? "($length)" : ""),
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"type" => $row["data_type"],
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"length" => $length,
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"default" => $row["column_default"],
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"null" => ($row["is_nullable"] == "YES"),
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"auto_increment" => eregi("^nextval\\(", $row["column_default"]),
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"on_update" => "", //!
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"collation" => $row["collation_name"],
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"privileges" => array("insert" => 1, "select" => 1, "update" => 1), //! is_updatable
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"primary" => false, //!
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"comment" => $row["comment"],
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);
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}
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}
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return $return;
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}
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function indexes($table, $connection2 = null) {
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global $connection;
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if (!is_object($connection2)) {
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$connection2 = $connection;
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}
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$return = array();
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$table_oid = $connection2->result("SELECT oid FROM pg_class WHERE relname = " . $connection2->quote($table));
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$columns = get_key_vals("SELECT attnum, attname FROM pg_attribute WHERE attrelid = $table_oid AND attnum > 0", $connection2);
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$result = $connection2->query("SELECT relname, indisunique, indisprimary, indkey FROM pg_index i, pg_class ci WHERE i.indrelid = $table_oid AND ci.oid = i.indexrelid");
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while ($row = $result->fetch_assoc()) {
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$return[$row["relname"]]["type"] = ($row["indisprimary"] == "t" ? "PRIMARY" : ($row["indisunique"] == "t" ? "UNIQUE" : "INDEX"));
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$return[$row["relname"]]["columns"] = array();
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foreach (explode(" ", $row["indkey"]) as $indkey) {
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$return[$row["relname"]]["columns"][] = $columns[$indkey];
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}
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$return[$row["relname"]]["lengths"] = array();
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}
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return $return;
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}
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function foreign_keys($table) {
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global $connection;
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$return = array();
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$result = $connection->query("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
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LEFT JOIN information_schema.key_column_usage kcu USING (constraint_catalog, constraint_schema, constraint_name)
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LEFT JOIN information_schema.referential_constraints rc USING (constraint_catalog, constraint_schema, constraint_name)
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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 = " . $connection->quote($table)); //! there can be more unique_constraint_name
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while ($row = $result->fetch_assoc()) {
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$foreign_key = &$return[$row["constraint_name"]];
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if (!$foreign_key) {
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$foreign_key = $row;
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}
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$foreign_key["source"][] = $row["column_name"];
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$foreign_key["target"][] = $row["ref"];
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}
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return $return;
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}
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function view($name) {
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global $connection;
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return array("select" => $connection->result("SELECT pg_get_viewdef(" . $connection->quote($name) . ")"));
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}
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function collations() {
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//! supported in CREATE DATABASE
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return array();
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}
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function information_schema($db) {
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return ($db == "information_schema");
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}
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function error() {
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global $connection;
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$return = h($connection->error);
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if (preg_match('~^(.*\\n)?([^\\n]*)\\n( *)\\^(\\n.*)?$~s', $return, $match)) {
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$return = $match[1] . preg_replace('~((?:[^&]|&[^;]*;){' . strlen($match[3]) . '})(.*)~', '\\1<b>\\2</b>', $match[2]) . $match[4];
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}
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return nl_br($return);
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}
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function exact_value($val) {
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global $connection;
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return $connection->quote($val);
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}
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function rename_database($name, $collation) {
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//! current database cannot be renamed
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return queries("ALTER DATABASE " . idf_escape(DB) . " RENAME TO " . idf_escape($name));
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}
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function auto_increment() {
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return true;
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}
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function alter_table($table, $name, $fields, $foreign, $comment, $engine, $collation, $auto_increment, $partitioning) {
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global $connection;
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$alter = array();
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$queries = array();
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foreach ($fields as $field) {
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$column = idf_escape($field[0]);
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$val = $field[1];
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if (!$val) {
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$alter[] = "DROP $column";
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} else {
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$val5 = $val[5];
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unset($val[5]);
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if ($val[6]) { // auto_increment
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$val = array($val[0], ($val[1] == "bigint" ? "big" : "") . "serial");
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}
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if ($field[0] == "") {
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$alter[] = ($table != "" ? "ADD " : " ") . implode("", $val);
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} else {
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if ($column != $val[0]) {
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$queries[] = "ALTER TABLE " . idf_escape($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") . $val[2];
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}
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}
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if ($table != "" || $val5 != "") {
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$queries[] = "COMMENT ON COLUMN " . idf_escape($table) . ".$val[0] IS " . substr($val5, 9);
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}
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}
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}
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$alter = array_merge($alter, $foreign);
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if ($table == "") {
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array_unshift($queries, "CREATE TABLE " . idf_escape($name) . " (\n" . implode(",\n", $alter) . "\n)");
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} elseif ($alter) {
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array_unshift($queries, "ALTER TABLE " . idf_escape($table) . "\n" . implode(",\n", $alter));
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}
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if ($table != "" && $table != $name) {
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$queries[] = "ALTER TABLE " . idf_escape($table) . " RENAME TO " . idf_escape($name);
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}
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if ($table != "" || $comment != "") {
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$queries[] = "COMMENT ON TABLE " . idf_escape($name) . " IS " . $connection->quote($comment);
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}
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if ($auto_increment != "") {
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//! $queries[] = "SELECT setval(pg_get_serial_sequence(" . $connection->quote($name) . ", ), $auto_increment)";
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}
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foreach ($queries as $query) {
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if (!queries($query)) {
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return false;
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}
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}
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return true;
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}
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function alter_indexes($table, $alter) {
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$create = array();
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$drop = array();
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foreach ($alter as $val) {
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if ($val[0] != "INDEX") {
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$create[] = ($val[2] ? "\nDROP CONSTRAINT " : "\nADD $val[0] " . ($val[0] == "PRIMARY" ? "KEY " : "")) . $val[1];
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} elseif ($val[2]) {
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$drop[] = $val[1];
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} elseif (!queries("CREATE INDEX " . idf_escape(uniqid($table . "_")) . " ON " . idf_escape($table) . " $val[1]")) {
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return false;
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}
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}
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return ((!$create || queries("ALTER TABLE " . idf_escape($table) . implode(",", $create)))
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&& (!$drop || queries("DROP INDEX " . implode(", ", $drop)))
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);
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}
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function truncate_tables($tables) {
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return queries("TRUNCATE " . implode(", ", array_map('idf_escape', $tables)));
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return true;
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}
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function drop_views($views) {
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return queries("DROP VIEW " . implode(", ", array_map('idf_escape', $views)));
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}
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function drop_tables($tables) {
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return queries("DROP TABLE " . implode(", ", array_map('idf_escape', $tables)));
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}
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function trigger($name) {
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global $connection;
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$result = $connection->query('SELECT trigger_name AS "Trigger", condition_timing AS "Timing", event_manipulation AS "Event", action_statement AS "Statement" FROM information_schema.triggers WHERE event_object_table = ' . $connection->quote($_GET["trigger"]) . ' AND trigger_name = ' . $connection->quote($name));
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return $result->fetch_assoc();
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}
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function triggers($table) {
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global $connection;
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$return = array();
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$result = $connection->query("SELECT * FROM information_schema.triggers WHERE event_object_table = " . $connection->quote($table));
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while ($row = $result->fetch_assoc()) {
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$return[$row["trigger_name"]] = array($row["condition_timing"], $row["event_manipulation"]);
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}
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return $return;
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}
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function explain($connection, $query) {
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return $connection->query("EXPLAIN $query");
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}
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function use_sql($database) {
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return "\connect " . idf_escape($database);
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}
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function support($feature) {
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return ereg('^(comment|view|routine|trigger)$', $feature);
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}
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$driver = "pgsql";
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$types = array();
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$structured_types = array();
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foreach (array( //! arrays
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lang('Numbers') => array("smallint" => 5, "integer" => 10, "bigint" => 19, "boolean" => 1, "numeric" => 0, "real" => 7, "double precision" => 16, "money" => 20),
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lang('Date and time') => array("date" => 13, "time" => 17, "timestamp" => 20, "interval" => 0),
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lang('Strings') => array("character" => 0, "character varying" => 0, "text" => 0, "tsquery" => 0, "tsvector" => 0, "uuid" => 0, "xml" => 0),
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lang('Binary') => array("bit" => 0, "bit varying" => 0, "bytea" => 0),
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lang('Network') => array("cidr" => 43, "inet" => 43, "macaddr" => 17, "txid_snapshot" => 0),
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lang('Geometry') => array("box" => 0, "circle" => 0, "line" => 0, "lseg" => 0, "path" => 0, "point" => 0, "polygon" => 0),
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) as $key => $val) {
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$types += $val;
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$structured_types[$key] = array_keys($val);
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}
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$unsigned = array();
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$operators = array("=", "<", ">", "<=", ">=", "!=", "~", "!~", "LIKE", "LIKE %%", "IN", "IS NULL", "NOT LIKE", "NOT IN", "IS NOT NULL");
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$functions = array("char_length", "lower", "round", "to_hex", "to_timestamp", "upper");
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$grouping = array("avg", "count", "count distinct", "max", "min", "sum");
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$edit_functions = array(
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array(
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"char" => "md5",
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"date|time" => "now",
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), array(
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"int|numeric|real|money" => "+/-",
|
|
"date|time" => "+ interval/- interval", //! escape
|
|
"char|text" => "||",
|
|
)
|
|
);
|
|
}
|