first commit

public/system/library/db/pgsql.php

@@ -0,0 +1,68 @@
+<?php
+namespace DB;
+final class PgSQL {
+	private $link;
+
+	public function __construct($hostname, $username, $password, $database, $port = '5432') {
+		if (!$this->link = pg_connect('hostname=' . $hostname . ' port=' . $port .  ' username=' . $username . ' password='	. $password . ' database=' . $database)) {
+			throw new \Exception('Error: Could not make a database link using ' . $username . '@' . $hostname);
+		}
+
+		if (!mysql_select_db($database, $this->link)) {
+			throw new \Exception('Error: Could not connect to database ' . $database);
+		}
+
+		pg_query($this->link, "SET CLIENT_ENCODING TO 'UTF8'");
+	}
+
+	public function query($sql) {
+		$resource = pg_query($this->link, $sql);
+
+		if ($resource) {
+			if (is_resource($resource)) {
+				$i = 0;
+
+				$data = array();
+
+				while ($result = pg_fetch_assoc($resource)) {
+					$data[$i] = $result;
+
+					$i++;
+				}
+
+				pg_free_result($resource);
+
+				$query = new \stdClass();
+				$query->row = isset($data[0]) ? $data[0] : array();
+				$query->rows = $data;
+				$query->num_rows = $i;
+
+				unset($data);
+
+				return $query;
+			} else {
+				return true;
+			}
+		} else {
+			throw new \Exception('Error: ' . pg_result_error($this->link) . '<br />' . $sql);
+		}
+	}
+
+	public function escape($value) {
+		return pg_escape_string($this->link, $value);
+	}
+
+	public function countAffected() {
+		return pg_affected_rows($this->link);
+	}
+
+	public function getLastId() {
+		$query = $this->query("SELECT LASTVAL() AS `id`");
+
+		return $query->row['id'];
+	}
+
+	public function __destruct() {
+		pg_close($this->link);
+	}
+}