500 lines
12 KiB
PHP
500 lines
12 KiB
PHP
<?php
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$drivers["elastic"] = "Elasticsearch (beta)";
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if (isset($_GET["elastic"])) {
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define("DRIVER", "elastic");
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if (function_exists('json_decode') && ini_bool('allow_url_fopen')) {
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class Min_DB {
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var $extension = "JSON", $server_info, $errno, $error, $_url, $_db;
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/**
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* @param string $path
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* @param array|null $content
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* @param string $method
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* @return array|false
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*/
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function rootQuery($path, array $content = null, $method = 'GET') {
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@ini_set('track_errors', 1); // @ - may be disabled
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$file = @file_get_contents("$this->_url/" . ltrim($path, '/'), false, stream_context_create(array('http' => array(
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'method' => $method,
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'content' => $content !== null ? json_encode($content) : null,
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'header' => $content !== null ? 'Content-Type: application/json' : [],
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'ignore_errors' => 1,
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'follow_location' => 0,
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'max_redirects' => 0,
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))));
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if ($file === false) {
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$this->error = lang('Invalid server or credentials.');
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return false;
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}
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$return = json_decode($file, true);
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if ($return === null) {
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$this->error = lang('Invalid server or credentials.');
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return false;
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}
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if (!preg_match('~^HTTP/[0-9.]+ 2~i', $http_response_header[0])) {
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if (isset($return['error']['root_cause'][0]['type'])) {
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$this->error = $return['error']['root_cause'][0]['type'] . ": " . $return['error']['root_cause'][0]['reason'];
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} else {
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$this->error = lang('Invalid server or credentials.');
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}
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return false;
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}
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return $return;
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}
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/** Performs query relative to actual selected DB
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* @param string $path
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* @param array|null $content
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* @param string $method
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* @return array|false
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*/
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function query($path, array $content = null, $method = 'GET') {
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return $this->rootQuery(($this->_db != "" ? "$this->_db/" : "/") . ltrim($path, '/'), $content, $method);
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}
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/**
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* @param string $server
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* @param string $username
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* @param string $password
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* @return bool
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*/
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function connect($server, $username, $password) {
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$this->_url = build_http_url($server, $username, $password, "localhost", 9200);
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$return = $this->query('');
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if (!$return) {
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return false;
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}
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if (!isset($return['version']['number'])) {
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$this->error = lang('Invalid server or credentials.');
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return false;
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}
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$this->server_info = $return['version']['number'];
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return true;
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}
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function select_db($database) {
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$this->_db = $database;
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return true;
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}
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function quote($string) {
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return $string;
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}
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}
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class Min_Result {
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var $num_rows, $_rows;
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function __construct($rows) {
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$this->num_rows = count($rows);
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$this->_rows = $rows;
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reset($this->_rows);
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}
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function fetch_assoc() {
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$return = current($this->_rows);
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next($this->_rows);
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return $return;
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}
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function fetch_row() {
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return array_values($this->fetch_assoc());
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}
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}
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}
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class Min_Driver extends Min_SQL {
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function select($table, $select, $where, $group, $order = array(), $limit = 1, $page = 0, $print = false) {
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global $adminer;
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$data = array();
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$query = "$table/_search";
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if ($select != array("*")) {
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$data["fields"] = $select;
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}
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if ($order) {
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$sort = array();
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foreach ($order as $col) {
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$col = preg_replace('~ DESC$~', '', $col, 1, $count);
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$sort[] = ($count ? array($col => "desc") : $col);
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}
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$data["sort"] = $sort;
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}
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if ($limit) {
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$data["size"] = +$limit;
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if ($page) {
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$data["from"] = ($page * $limit);
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}
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}
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foreach ($where as $val) {
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list($col, $op, $val) = explode(" ", $val, 3);
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if ($col == "_id") {
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$data["query"]["ids"]["values"][] = $val;
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}
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elseif ($col . $val != "") {
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$term = array("term" => array(($col != "" ? $col : "_all") => $val));
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if ($op == "=") {
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$data["query"]["filtered"]["filter"]["and"][] = $term;
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} else {
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$data["query"]["filtered"]["query"]["bool"]["must"][] = $term;
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}
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}
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}
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if ($data["query"] && !$data["query"]["filtered"]["query"] && !$data["query"]["ids"]) {
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$data["query"]["filtered"]["query"] = array("match_all" => array());
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}
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$start = microtime(true);
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$search = $this->_conn->query($query, $data);
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if ($print) {
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echo $adminer->selectQuery("$query: " . json_encode($data), $start, !$search);
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}
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if (!$search) {
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return false;
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}
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$return = array();
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foreach ($search['hits']['hits'] as $hit) {
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$row = array();
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if ($select == array("*")) {
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$row["_id"] = $hit["_id"];
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}
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$fields = $hit['_source'];
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if ($select != array("*")) {
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$fields = array();
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foreach ($select as $key) {
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$fields[$key] = $hit['fields'][$key];
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}
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}
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foreach ($fields as $key => $val) {
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if ($data["fields"]) {
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$val = $val[0];
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}
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$row[$key] = (is_array($val) ? json_encode($val) : $val); //! display JSON and others differently
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}
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$return[] = $row;
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}
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return new Min_Result($return);
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}
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function update($type, $record, $queryWhere, $limit = 0, $separator = "\n") {
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//! use $limit
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$parts = preg_split('~ *= *~', $queryWhere);
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if (count($parts) == 2) {
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$id = trim($parts[1]);
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$query = "$type/$id";
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return $this->_conn->query($query, $record, 'POST');
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}
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return false;
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}
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function insert($type, $record) {
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$id = ""; //! user should be able to inform _id
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$query = "$type/$id";
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$response = $this->_conn->query($query, $record, 'POST');
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$this->_conn->last_id = $response['_id'];
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return $response['created'];
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}
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function delete($type, $queryWhere, $limit = 0) {
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//! use $limit
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$ids = array();
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if (is_array($_GET["where"]) && $_GET["where"]["_id"]) {
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$ids[] = $_GET["where"]["_id"];
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}
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if (is_array($_POST['check'])) {
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foreach ($_POST['check'] as $check) {
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$parts = preg_split('~ *= *~', $check);
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if (count($parts) == 2) {
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$ids[] = trim($parts[1]);
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}
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}
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}
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$this->_conn->affected_rows = 0;
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foreach ($ids as $id) {
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$query = "{$type}/{$id}";
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$response = $this->_conn->query($query, '{}', 'DELETE');
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if (is_array($response) && $response['found'] == true) {
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$this->_conn->affected_rows++;
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}
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}
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return $this->_conn->affected_rows;
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}
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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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list($server, $username, $password) = $adminer->credentials();
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if ($password != "" && $connection->connect($server, $username, "")) {
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return lang('Database does not support password.');
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}
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if ($connection->connect($server, $username, $password)) {
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return $connection;
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}
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return $connection->error;
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}
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function support($feature) {
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return preg_match("~database|table|columns~", $feature);
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}
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function logged_user() {
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global $adminer;
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$credentials = $adminer->credentials();
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return $credentials[1];
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}
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function get_databases() {
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global $connection;
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$return = $connection->rootQuery('_aliases');
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if ($return) {
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$return = array_keys($return);
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sort($return, SORT_STRING);
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}
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return $return;
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}
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function collations() {
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return array();
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}
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function db_collation($db, $collations) {
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}
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function engines() {
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return array();
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}
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function count_tables($databases) {
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global $connection;
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$return = array();
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$result = $connection->query('_stats');
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if ($result && $result['indices']) {
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$indices = $result['indices'];
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foreach ($indices as $indice => $stats) {
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$indexing = $stats['total']['indexing'];
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$return[$indice] = $indexing['index_total'];
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}
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}
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return $return;
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}
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function tables_list() {
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global $connection;
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if (min_version(6)) {
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return array('_doc' => 'table');
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}
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$return = $connection->query('_mapping');
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if ($return) {
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$return = array_fill_keys(array_keys($return[$connection->_db]["mappings"]), 'table');
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}
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return $return;
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}
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function table_status($name = "", $fast = false) {
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global $connection;
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$search = $connection->query("_search", array(
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"size" => 0,
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"aggregations" => array(
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"count_by_type" => array(
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"terms" => array(
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"field" => "_type"
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)
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)
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)
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), "POST");
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$return = array();
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if ($search) {
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$tables = $search["aggregations"]["count_by_type"]["buckets"];
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foreach ($tables as $table) {
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$return[$table["key"]] = array(
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"Name" => $table["key"],
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"Engine" => "table",
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"Rows" => $table["doc_count"],
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);
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if ($name != "" && $name == $table["key"]) {
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return $return[$name];
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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 error() {
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global $connection;
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return h($connection->error);
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}
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function information_schema() {
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}
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function is_view($table_status) {
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}
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function indexes($table, $connection2 = null) {
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return array(
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array("type" => "PRIMARY", "columns" => array("_id")),
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);
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}
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function fields($table) {
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global $connection;
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$mappings = array();
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if (min_version(6)) {
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$result = $connection->query("_mapping");
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if ($result) {
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$mappings = $result[$connection->_db]['mappings']['properties'];
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}
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} else {
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$result = $connection->query("$table/_mapping");
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if ($result) {
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$mappings = $result[$table]['properties'];
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if (!$mappings) {
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$mappings = $result[$connection->_db]['mappings'][$table]['properties'];
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}
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}
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}
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$return = array();
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if ($mappings) {
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foreach ($mappings as $name => $field) {
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$return[$name] = array(
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"field" => $name,
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"full_type" => $field["type"],
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"type" => $field["type"],
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"privileges" => array("insert" => 1, "select" => 1, "update" => 1),
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);
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if ($field["properties"]) { // only leaf fields can be edited
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unset($return[$name]["privileges"]["insert"]);
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unset($return[$name]["privileges"]["update"]);
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}
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}
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}
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return $return;
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}
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function foreign_keys($table) {
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return array();
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}
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function table($idf) {
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return $idf;
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}
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function idf_escape($idf) {
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return $idf;
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}
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function convert_field($field) {
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}
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function unconvert_field($field, $return) {
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return $return;
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}
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function fk_support($table_status) {
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}
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function found_rows($table_status, $where) {
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return null;
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}
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/** Create index
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* @param string
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* @return mixed
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*/
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function create_database($db) {
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global $connection;
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return $connection->rootQuery(urlencode($db), null, 'PUT');
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}
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/** Remove index
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* @param array
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* @return mixed
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*/
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function drop_databases($databases) {
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global $connection;
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return $connection->rootQuery(urlencode(implode(',', $databases)), array(), 'DELETE');
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}
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/** Alter type
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* @param array
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* @return mixed
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*/
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function alter_table($table, $name, $fields, $foreign, $comment, $engine, $collation, $auto_increment, $partitioning) {
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global $connection;
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$properties = array();
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foreach ($fields as $f) {
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$field_name = trim($f[1][0]);
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$field_type = trim($f[1][1] ? $f[1][1] : "text");
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$properties[$field_name] = array(
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'type' => $field_type
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);
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}
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if (!empty($properties)) {
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$properties = array('properties' => $properties);
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}
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return $connection->query("_mapping/{$name}", $properties, 'PUT');
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}
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/** Drop types
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* @param array
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* @return bool
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*/
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function drop_tables($tables) {
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global $connection;
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$return = true;
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foreach ($tables as $table) { //! convert to bulk api
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$return = $return && $connection->query(urlencode($table), array(), 'DELETE');
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}
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return $return;
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}
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function last_id() {
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global $connection;
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return $connection->last_id;
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}
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function driver_config() {
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$types = array();
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$structured_types = array();
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foreach (array(
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lang('Numbers') => array("long" => 3, "integer" => 5, "short" => 8, "byte" => 10, "double" => 20, "float" => 66, "half_float" => 12, "scaled_float" => 21),
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lang('Date and time') => array("date" => 10),
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lang('Strings') => array("string" => 65535, "text" => 65535),
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lang('Binary') => array("binary" => 255),
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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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return array(
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'possible_drivers' => array("json + allow_url_fopen"),
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'jush' => "elastic",
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'operators' => array("=", "query"),
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'functions' => array(),
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'grouping' => array(),
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'edit_functions' => array(array("json")),
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'types' => $types,
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'structured_types' => $structured_types,
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);
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}
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}
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