2007-04-16 11:58:25 +00:00
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<?php
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2008-04-09 01:10:56 +00:00
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require_once "compat.inc.php";
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2008-04-01 10:11:36 +00:00
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$ADODB_CACHE_DIR=sys_get_temp_dir();
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2007-04-16 11:58:25 +00:00
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require_once "lib/adodb/adodb.inc.php";
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2009-01-04 14:34:27 +00:00
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require_once "lib/adodb/adodb-exceptions.inc.php";
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2007-04-16 11:58:25 +00:00
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2007-12-06 11:01:18 +00:00
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/* Querylet {{{
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* A fragment of a query, used to build large search queries
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*/
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class Querylet {
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2007-04-16 11:58:25 +00:00
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var $sql;
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var $variables;
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2009-01-04 19:18:37 +00:00
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2008-02-06 17:24:08 +00:00
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public function Querylet($sql, $variables=array()) {
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2007-04-16 11:58:25 +00:00
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$this->sql = $sql;
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$this->variables = $variables;
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}
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public function append($querylet) {
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2008-02-06 17:24:08 +00:00
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assert(!is_null($querylet));
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2007-04-16 11:58:25 +00:00
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$this->sql .= $querylet->sql;
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$this->variables = array_merge($this->variables, $querylet->variables);
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}
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public function append_sql($sql) {
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$this->sql .= $sql;
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}
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public function add_variable($var) {
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$this->variables[] = $var;
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}
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2008-05-19 15:59:58 +00:00
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}
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class TagQuerylet {
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var $tag;
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var $positive;
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public function TagQuerylet($tag, $positive) {
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$this->tag = $tag;
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$this->positive = $positive;
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}
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}
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class ImgQuerylet {
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var $qlet;
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var $positive;
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public function ImgQuerylet($qlet, $positive) {
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$this->qlet = $qlet;
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$this->positive = $positive;
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}
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}
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// }}}
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2008-05-18 02:14:51 +00:00
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// {{{ dbengines
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class DBEngine {
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var $name = null;
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var $auto_increment = null;
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var $create_table_extras = "";
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}
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class MySQL extends DBEngine {
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var $name = "mysql";
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var $auto_increment = "INTEGER PRIMARY KEY auto_increment";
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var $create_table_extras = "TYPE=INNODB DEFAULT CHARSET='utf8'";
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2008-08-11 20:27:24 +00:00
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function init($db) {
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$db->Execute("SET NAMES utf8;");
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}
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2008-05-18 02:14:51 +00:00
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}
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class PostgreSQL extends DBEngine {
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var $name = "pgsql";
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var $auto_increment = "SERIAL PRIMARY KEY";
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2008-08-11 20:27:24 +00:00
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function init($db) {
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}
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2008-05-18 02:14:51 +00:00
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}
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//}}}
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2007-04-16 11:58:25 +00:00
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2007-12-06 11:01:18 +00:00
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/*
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2009-01-03 20:32:57 +00:00
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* A class for controlled database access
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2007-12-06 11:01:18 +00:00
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*/
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2007-04-16 11:58:25 +00:00
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class Database {
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var $db;
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var $extensions;
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2008-04-30 11:26:12 +00:00
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var $cache_hits = 0, $cache_misses = 0;
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2008-05-18 02:14:51 +00:00
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var $engine = null;
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2007-04-16 11:58:25 +00:00
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2007-12-11 18:37:11 +00:00
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/*
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* Create a new database object using connection info
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* stored in config.php in the root shimmie folder
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*/
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2007-04-16 11:58:25 +00:00
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public function Database() {
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if(is_readable("config.php")) {
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require_once "config.php";
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2008-05-18 02:14:51 +00:00
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$this->engine = new MySQL();
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2007-07-28 14:15:03 +00:00
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$this->db = @NewADOConnection($database_dsn);
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2008-04-30 11:26:12 +00:00
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$this->use_memcache = isset($memcache);
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2007-07-28 14:15:03 +00:00
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if($this->db) {
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$this->db->SetFetchMode(ADODB_FETCH_ASSOC);
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2008-08-11 20:27:24 +00:00
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$this->engine->init($this->db);
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2007-07-28 14:15:03 +00:00
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}
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else {
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$version = VERSION;
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print "
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<html>
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<head>
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<title>Internal error - Shimmie-$version</title>
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</head>
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<body>
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Internal error: Could not connect to database
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</body>
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</html>
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";
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exit;
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}
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2008-04-30 11:26:12 +00:00
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if($this->use_memcache) {
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$this->memcache = new Memcache;
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$this->memcache->pconnect('localhost', 11211) or ($this->use_memcache = false);
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}
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2007-04-16 11:58:25 +00:00
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}
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else {
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header("Location: install.php");
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exit;
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}
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}
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2008-04-30 11:26:12 +00:00
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// memcache {{{
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public function cache_get($key) {
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2008-07-25 17:42:24 +00:00
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assert(!is_null($key));
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2008-04-30 11:26:12 +00:00
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if($this->use_memcache) {
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$val = $this->memcache->get($key);
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if($val) {
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$this->cache_hits++;
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return $val;
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}
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else {
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$this->cache_misses++;
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}
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}
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return false;
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}
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public function cache_set($key, $val, $time=0) {
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2008-07-25 17:42:24 +00:00
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assert(!is_null($key));
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2008-04-30 11:26:12 +00:00
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if($this->use_memcache) {
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$this->memcache->set($key, $val, false, $time);
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}
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}
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public function cache_delete($key) {
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2008-07-25 17:42:24 +00:00
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assert(!is_null($key));
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2008-04-30 11:26:12 +00:00
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if($this->use_memcache) {
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$this->memcache->delete($key);
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}
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}
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// }}}
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2009-01-04 16:15:00 +00:00
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// safety wrapping {{{
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2007-05-23 23:26:11 +00:00
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public function execute($query, $args=array()) {
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2007-10-21 17:13:57 +00:00
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$result = $this->db->Execute($query, $args);
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if($result === False) {
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print "SQL Error: " . $this->db->ErrorMsg();
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print "<br>Query: $query";
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print "<br>Args: "; print_r($args);
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exit;
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}
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return $result;
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2007-08-08 05:47:23 +00:00
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}
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2008-01-05 00:22:19 +00:00
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public function get_all($query, $args=array()) {
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$result = $this->db->GetAll($query, $args);
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if($result === False) {
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print "SQL Error: " . $this->db->ErrorMsg();
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print "<br>Query: $query";
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print "<br>Args: "; print_r($args);
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exit;
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}
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return $result;
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}
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2009-01-04 16:15:00 +00:00
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2008-08-23 12:05:24 +00:00
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public function get_row($query, $args=array()) {
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$result = $this->db->GetRow($query, $args);
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if($result === False) {
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print "SQL Error: " . $this->db->ErrorMsg();
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print "<br>Query: $query";
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print "<br>Args: "; print_r($args);
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exit;
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}
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if(count($result) == 0) {
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return null;
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}
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else {
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return $result;
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}
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}
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2008-01-27 15:30:44 +00:00
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public function upgrade_schema($filename) {
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2008-05-18 02:14:51 +00:00
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$this->install_schema($filename);
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}
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2009-01-04 19:18:37 +00:00
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2008-05-18 02:14:51 +00:00
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public function install_schema($filename) {
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2008-01-27 15:30:44 +00:00
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//print "<br>upgrading $filename";
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2008-01-05 00:22:19 +00:00
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2007-08-08 05:47:23 +00:00
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global $config;
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2008-01-27 15:30:44 +00:00
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if($config->get_bool("in_upgrade")) return;
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$config->set_bool("in_upgrade", true);
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2009-01-04 19:18:37 +00:00
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2008-01-27 15:30:44 +00:00
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require_once "lib/adodb/adodb-xmlschema03.inc.php";
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$schema = new adoSchema($this->db);
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$sql = $schema->ParseSchema($filename);
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//echo "<pre>"; var_dump($sql); echo "</pre>";
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$result = $schema->ExecuteSchema();
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2007-08-08 05:47:23 +00:00
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2008-01-27 15:30:44 +00:00
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if(!$result) {
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die("Error creating tables from XML schema ($filename)");
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2007-05-17 03:48:34 +00:00
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}
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2008-01-27 15:30:44 +00:00
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$config->set_bool("in_upgrade", false);
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2007-05-17 03:48:34 +00:00
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}
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2007-04-16 11:58:25 +00:00
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// }}}
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}
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?>
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