Added basical functions
This commit is contained in:
Chouchen
parent
2fccf1207d
commit
0e49600951
227
XMLDB.php
227
XMLDB.php
@ -7,26 +7,72 @@ class XMLDB{
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// Primary key
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protected $_primaryKey;
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// Selected table
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protected $_table;
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// XPATH
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protected $_xpath;
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// Content of the XML DB File
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protected $_doc;
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public function __construct($file, $pk = "id"){
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/**
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* Constructor
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* @param $file string path to the file to read/create
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* @param $pk string name of the primary key
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* @param $createIfNotExist bool create the file if it doesn't exist
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*/
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public function __construct($file, $pk = "id", $createIfNotExist = false){
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ini_set("display_errors", "off");
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ini_set("log_errors", "on");
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ini_set('error_log', $_SERVER['DOCUMENT_ROOT'].'/test/XMLDB/XMLDB.log');
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$this->_primaryKey = $pk;
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$this->_file = $file;
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$this->_doc = new DOMDocument;
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if(@$this->_doc->load($this->_file))
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$this->_doc->preserveWhiteSpace = false;
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$this->_doc->formatOutput = true;
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if($this->_doc->load($this->_file)){
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$this->_xpath = new DOMXpath($this->_doc);
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else{
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$this->_file = $file;
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$this->_doc = null;
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$this->xpath = null;
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}
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else{
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if($createIfNotExist){
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$this->createDatabase($file);
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}else{
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$this->_file = null;
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$this->_doc = null;
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$this->xpath = null;
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}
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}
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}
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public function createDatabase($file){
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$this->_file = $file;
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$this->_doc = DOMDocument::loadXML('<?xml version="1.0" encoding="utf-8"?>
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<Database>
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</Database>');
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$this->_xpath = new DOMXpath($this->_doc);
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return $this->save();
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}
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public function createTable($name){
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if($name == '*' || $this->tableAlreadyExists($name))
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return false;
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else
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return $this->insertNode(array('name'=>'table', 'attributes'=>array('name'=>$name)));
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}
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/**
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* @return bool
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*/
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public function tableAlreadyExists($tableName){
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if($this->selectTable($tableName, 'count') >= 1)
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return true;
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return false;
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}
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public function selectTable($name, $format = 'node'){
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return $this->select($name, null, null, null, $format);
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}
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public function isLoaded(){
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@ -36,6 +82,10 @@ class XMLDB{
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return false;
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}
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public function count($from, $id = null, $attributes = null, $childs = null){
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return $this->select($from, $id, $attributes, $childs, 'count');
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}
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public function setPrimaryKey($pk){
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$this->_primaryKey = $pk;
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}
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@ -53,6 +103,8 @@ class XMLDB{
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*/
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public function save(){
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if($this->_doc != null && $this->_file != null){
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$this->_doc->preserveWhiteSpace = false;
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$this->_doc->formatOutput = true;
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$this->_doc->save($this->_file);
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return true;
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}else{
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@ -60,20 +112,60 @@ class XMLDB{
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}
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}
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// TODO checking $request
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public function requestToArray($request){
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foreach($request as $element){
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/*if($childName != null && $childValue != null)
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$element = $element->parentNode;*/
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$elementValue = $element->attributes->item(0)->value;
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$return[$elementValue]['attributes'] = array();
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$return[$elementValue]['childs'] = array();
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//Retrieving Attributes
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$attributes = $element->attributes;
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$length = $attributes->length;
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for ($i = 1; $i <= $length; $i++) {
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$return[$elementValue]['attributes'][$attributes->item($i)->name] = $attributes->item($i)->value;
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}
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// Retrivieving childs
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$nodes = $element->childNodes;
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$length = $nodes->length;
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for ($i = 1; $i <= $length; $i++) {
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$return[$elementValue]['childs'][$nodes->item($i)->nodeName] = $nodes->item($i)->nodeValue;
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}
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}
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return $return;
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}
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/**
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* Shortcuts for select
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*/
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public function selectFromAttribute($table, $attributes, $format = 'array'){
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return $this->select($table, null, $attributes, null, $format);
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}
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public function selectFromChilds($table, $childs, $format = 'array'){
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return $this->select($table, null, null, $childs, $format);
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}
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public function selectFromPK($table, $pk, $format = "array"){
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return $this->select($table, $pk, null, null, $format);
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}
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/**
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* Allows you to get an array of the node you're looking for based on a "where" search thanks to child or attribute value
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* @param $from string Name of the node you're looking for
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* @param $from string Name of the table
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* @param $id string value of the primary key
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* @param $childs array name/value of the child node
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* @param $attributes array name/value of the attribute
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* @return array
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*/
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// TODO other format
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public function selectNode($from, $id = null, $attributes = null, $childs = null, $format = 'array'){
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public function select($from, $id = null, $attributes = null, $childs = null, $format = 'array'){
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if (!$from) {
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throw new Exception('uhoh, no "where" statement?');
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throw new Exception('uhoh, no table selected');
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}
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if($id != null){
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if($id != null && count($id) == 1){
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$attribute .= '[@' . $this->_primaryKey . ' = "' . $id . '"]';
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}
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if($attributes != null){
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@ -82,49 +174,65 @@ class XMLDB{
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}
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if($childs != null){
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foreach($childs as $childName=>$childValue)
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$child .= '/' . $childName . '[.="' . $childValue . '"]';
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$child .= '[' . $childName . '="' . $childValue . '"]';
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/*$child .= '/' . $childName . '[.="' . $childValue . '"]';
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if(count($childs)>1){
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$child = str_replace('/', '', $child);
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$child = '/'.$child;
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}*/
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}
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$request = $this->_xpath->query('//'.$from.$attribute.$child);
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$requestLength = $request->length;
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if($format == "array"){
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//$return = array('length'=>$requestLength, 'request'=>'//'.$from.$attribute.$child);
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foreach($request as $element){
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if($childName != null && $childValue != null)
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$element = $element->parentNode;
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$elementValue = $element->attributes->item(0)->value;
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$return[$elementValue]['attributes'] = array();
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$return[$elementValue]['childs'] = array();
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if($from == '*')
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$request = $this->_xpath->query('//item'.$attribute.$child);
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else
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$request = $this->_xpath->query('//table[@name = "'.$from.'"]/item'.$attribute.$child);
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//Retrieving Attributes
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$attributes = $element->attributes;
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$length = $attributes->length;
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for ($i = 1; $i <= $length; $i++) {
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$return[$elementValue]['attributes'][$attributes->item($i)->name] = $attributes->item($i)->value;
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}
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// Retrivieving childs
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$nodes = $element->childNodes;
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$length = $nodes->length;
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for ($i = 1; $i <= $length; $i++) {
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$return[$elementValue]['childs'][$nodes->item($i)->nodeName] = $nodes->item($i)->nodeValue;
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}
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}
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}else if($format == "node"){
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$return = $request;
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switch($format){
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case "node":
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$return = $request;
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break;
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case "count":
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$return = $request->length;
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break;
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case "array":
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default:
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$return = $this->requestToArray($request);
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}
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return $return;
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}
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/**
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* Same as above, but user can build his own xpath
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*/
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public function select_xpath($from, $xpath, $format = 'array'){
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if (!$from || !$xpath) {
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throw new Exception('uhoh, no table selected');
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}
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$request = $this->_xpath->query('//table[@name = "'.$from.'"]/'.$xpath);
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switch($format){
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case "node":
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$return = $request;
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break;
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case "count":
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$return = $request->length;
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break;
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case "array":
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default:
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$return = $this->requestToArray($request);
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}
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return $return;
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}
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/**
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* Allows you to insert a node into your DB thanks to an array
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* @param $node array
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* @param $where string in which node you want to put it. By default, the root of the xml file
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* @param $node array with 'name' 'attributes' and 'childs'
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* @param $table string in which node you want to put it. By default, the root of the xml file
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* @param $position string 'before' or 'after'
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* @return bool
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*/
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// TODO other $where and $position
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public function insertNode($node, $where = null, $position = null){
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public function insertNode($node, $table = null, $position = null){
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if(!is_array($node) || !isset($node['name']))
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return false;
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@ -143,22 +251,31 @@ class XMLDB{
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}
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// Inserting the node into the DB
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if($where == null){
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// case : creation of a new table
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if($table == null){
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$this->_doc->firstChild->appendChild($element);
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}else{
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// case : insertion into the end of table
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//TODO checking if PK already exists
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$request = $this->_xpath->query('//table[@name = "'.$table.'"]');
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if($request->length != 1){
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return false;
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}
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$request->item(0)->appendChild($element);
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}
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return $this->save();
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}
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/**
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*
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* @param $node string
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* @param $table string
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* @param $oldAttribute string name of the attribute you want to change
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* @param $newAttribute array name/value of the attribute you want to add
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* @param $forceInsert bool
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* @return bool
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*/
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public function updateNodeAttribute($node, $oldAttribute, $newAttribute, $forceInsert = false){
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$request = $this->selectNode($node, null, array($oldAttribute[0]=>$oldAttribute[1]), null, 'node');
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public function updateNodeAttribute($table, $oldAttribute, $newAttribute, $forceInsert = false){
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$request = $this->select($table, null, array($oldAttribute[0]=>$oldAttribute[1]), null, 'node');
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if($request->length == 1){
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if(!$forceInsert){
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$request->item(0)->setAttribute($oldAttribute[0],$newAttribute[1]);
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@ -173,12 +290,12 @@ class XMLDB{
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/**
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*
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* @param $node string
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* @param $table string
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* @param $value string new value of the node
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* @return bool
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*/
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public function updateNodeValue($node, $attribute = null, $child = null, $value){
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$request = $this->selectNode($node, null, array($attribute[0]=>$attribute[1]), null, 'node');
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public function updateNodeValue($table, $attribute = null, $child = null, $value){
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$request = $this->select($table, null, array($attribute[0]=>$attribute[1]), null, 'node');
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//$request = $this->_xpath->query('//'.$node.'[@' . $attribute[0] . ' = "' . $attribute[1] . '"]');
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if($request->length == 1){
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$request = $request->item(0);
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@ -192,22 +309,22 @@ class XMLDB{
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}
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public function deleteNode($node, $id = null, $attributes = null){
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public function deleteNode($table, $id = null, $attributes = null){
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if($id != null && $attributes != null)
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return false;
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if($id != null)
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$request = $this->selectNode($node, $id, null, null, 'node')->item(0);
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$request = $this->select($table, $id, null, null, 'node')->item(0);
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if($attributes != null)
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$request = $this->selectNode($node, null, array($attribute[0]=>$attribute[1]), null, 'node')->item(0);
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$request = $this->select($table, null, array($attribute[0]=>$attribute[1]), null, 'node')->item(0);
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$request->parentNode->removeChild($request);
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return $this->save();
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}
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public function moveNode($node, $from, $to){
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}
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}
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@ -1,59 +1,88 @@
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<?
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require_once 'XMLDB.php';
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echo 'Creating new DB (should be "ok" creating a new file "test")<br/>';
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if($xmldbtest1 = new XMLDB('test.xml', 'id', true))
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echo "ok";
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else
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echo "ko";
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echo '<br/>Creating new table (should be "ok" adding table1 in test)<br/>';
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if($xmldbtest1->createTable('table1'))
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echo "ok";
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else
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echo "ko";
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echo '<br/>loading an inexistant DB (error)<br/>';
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$xmldbtest = new XMLDB('text.xml');
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if(!$xmldbtest->isLoaded()){
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echo 'can\'t load test.xml<br/>';
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$xmldbtest = new XMLDB('config.xml');
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echo '<br/><br/>can\'t load test.xml<br/>';
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$xmldbtest = new XMLDB('database.xml');
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if($xmldbtest->isLoaded()){
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// Testing selectNode($from, $attributeName = null, $attributeValue = null, $childName = null, $childValue = null)
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echo 'Testing empty selectNode <br/>';
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// Testing select($from, $attributeName = null, $attributeValue = null, $childName = null, $childValue = null)
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echo 'Testing empty select (exception)<br/>';
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try {
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$xmldbtest->selectNode();
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$xmldbtest->select();
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}
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catch(Exception $e){
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echo $e->getMessage().'<br/><br/>';
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}
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echo 'Testing selectNode <br/>';
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$result = $xmldbtest->selectNode('item');
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echo count($result).' results <br/><br/>';
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echo '<br/>Creating new table name "*" (should be "ko" table already exist)<br/>';
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if($xmldbtest->createTable('*'))
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echo "ok";
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else
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echo "ko";
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echo 'Testing selectNode id=weather with pk<br/>';
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$result = $xmldbtest->selectNode('item', 'weather');
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echo count($result).' results <br/><br/>';
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echo 'Testing selectNode id=weather<br/>';
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$result = $xmldbtest->selectNode('item', null, array('id'=>'weather'));
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echo count($result).' results <br/><br/>';
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echo 'Testing selectNode visibility = true<br/>';
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$result = $xmldbtest->selectNode('item', null,null,array('visibility'=>'true'));
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echo count($result).' results <br/><br/>';
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echo 'Testing selectNode visibility = true and x = 32<br/>';
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$result = $xmldbtest->selectNode('item', null ,null,array('visibility'=>'true', 'x'=>'32'));
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echo count($result).' results <br/><br/>';
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echo '<br/>Testing insertNode at XML root<br/>';
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if($xmldbtest->insertNode(array('name'=>'item', 'attributes'=>array('id'=>'test'), 'childs'=>array('visibility'=>'true', 'x'=>'33'))))
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echo '<br/>Creating new table (should be "ko" table already exist)<br/>';
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if($xmldbtest->createTable('table1'))
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echo "ok";
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else
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echo "ko";
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echo '<br/>Testing insertNode at XML root (should insert an item named "test" into table1)<br/>';
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if($xmldbtest->insertNode(array('name'=>'item', 'attributes'=>array('id'=>'test'), 'childs'=>array('visibility'=>'true', 'x'=>'33')), 'table1'))
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echo "ok<br/><br/>";
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else
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echo "ko<br/><br/>";
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echo '<br/>Testing updatingNodeAttribute with no insert <br/>';
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if($xmldbtest->updateNodeAttribute('item', array('id', 'links'), array('id', 'zelda')))
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echo 'Testing select (should give 8 results - 7 from the file + 1 we created earlier)<br/>';
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$result = $xmldbtest->select('table1');
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echo count($result).' results <br/><br/>';
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echo 'Testing select id=weather with pk (should find 1 result)<br/>';
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$result = $xmldbtest->selectFromPK('table1', 'weather');
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echo count($result).' results <br/><br/>';
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echo 'Testing select id=weather (should find 1 result)<br/>';
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$result = $xmldbtest->select('table1', null, array('id'=>'weather'));
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echo count($result).' results <br/><br/>';
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echo 'Testing select visibility = true (should throw 6 results - 5 from the base file + 1 we created)<br/>';
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$result = $xmldbtest->select('table1', null,null,array('visibility'=>'true'));
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echo count($result).' results<br/><br/>';
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echo 'Testing select visibility = true on all tables (should find 8 results - 7 from the base file + 1 we created)<br/>';
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$result = $xmldbtest->select('*', null,null,array('visibility'=>'true'));
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echo count($result).' results <br/><br/>';
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echo 'Testing select visibility = true and x = 32 (experimental - should find 1)<br/>';
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$result = $xmldbtest->selectFromChilds('table1',array('visibility'=>'true', 'x'=>'32'));
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echo count($result).' results<br/><br/>';
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echo '<br/>Testing updatingNodeAttribute with no insert (should be ok and change the item "links" into "zelda" haha)<br/>';
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if($xmldbtest->updateNodeAttribute('table1', array('id', 'links'), array('id', 'zelda')))
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echo "ok<br/><br/>";
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else
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echo "ko<br/><br/>";
|
||||
|
||||
echo '<br/>Testing updateNodeValue via attribute<br/>';
|
||||
if($xmldbtest->updateNodeValue('item', array('id', 'notes'), null, 'booga!'))
|
||||
echo '<br/>Testing updateNodeValue via attribute (should be ok - inserting "booga!" into the item named "notes")<br/>';
|
||||
if($xmldbtest->updateNodeValue('table1', array('id', 'notes'), null, 'booga!'))
|
||||
echo "ok<br/><br/>";
|
||||
else
|
||||
echo "ko<br/><br/>";
|
||||
|
||||
echo '<br/>Testing deleteNode via pk<br/>';
|
||||
if($xmldbtest->deleteNode('item', 'test', null))
|
||||
echo '<br/>Testing deleteNode via pk (should be ok - deleting the item clock into table1)<br/>';
|
||||
if($xmldbtest->deleteNode('table1', 'clock', null))
|
||||
echo "ok<br/><br/>";
|
||||
else
|
||||
echo "ko<br/><br/>";
|
||||
|
||||
@ -1,5 +1,6 @@
|
||||
<?xml version="1.0" encoding="utf-8"?>
|
||||
<Config>
|
||||
<Database>
|
||||
<table name="table1">
|
||||
<item id="clock">
|
||||
<visibility>false</visibility>
|
||||
<x>950</x>
|
||||
@ -30,6 +31,8 @@
|
||||
<x>32</x>
|
||||
<y>-2</y>
|
||||
</item>
|
||||
</table>
|
||||
<table name="table2">
|
||||
<item id="clockAdvanced">
|
||||
<visibility>false</visibility>
|
||||
<x>80</x>
|
||||
@ -60,4 +63,5 @@
|
||||
<item id="gmap">
|
||||
<visibility>true</visibility>
|
||||
</item>
|
||||
</Config>
|
||||
</table>
|
||||
</Database>
|
||||
Loading…
Reference in New Issue
Block a user