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107 lines
2.4 KiB
107 lines
2.4 KiB
<?php
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/* For licensing terms, see /license.txt */
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// some constants to avoid serialize string keys on serialized data array
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define('SE_COURSE_ID', 0);
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define('SE_TOOL_ID', 1);
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define('SE_DATA', 2);
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define('SE_USER', 3);
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// in some cases we need top differenciate xapian documents of the same tool
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define('SE_DOCTYPE_EXERCISE_EXERCISE', 0);
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define('SE_DOCTYPE_EXERCISE_QUESTION', 1);
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// xapian prefixes
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define('XAPIAN_PREFIX_COURSEID','C');
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define('XAPIAN_PREFIX_TOOLID', 'O');
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abstract class _IndexableChunk
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{
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/* struct (array)
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* {
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* string title; <- nombre de archivo/elemento
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* string content; <- texto a indexar
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* string ids; <- los flags a guardar "cidReq:lp_id:path"
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* }
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*/
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public $data;
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/**
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* array (
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* 'SE_COURSE_ID' => string <- course id from course table on main db
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* 'SE_TOOL_ID' => string <- tool id from mainapi lib constants
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* 'SE_DATA' => mixed <- extra information, depends on SE_TOOL_ID
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* 'SE_USER' => id <- user id from user table in main db
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* )
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*/
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public $xapian_data;
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/**
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* array(
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* name => string
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* flag => char
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* )
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*/
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public $terms;
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/**
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* Add a value to the indexed item
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* @param string Key
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* @param string Value
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* @return void
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*/
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function addValue($key, $value) {
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$this->data[$key] = $value;
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}
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/**
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* Add a term (like xapian definition)
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* @param string Term
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* @param string Flag (one character)
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*/
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public function addTerm($term, $flag) {
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global $charset;
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if (strlen($flag) == 1) {
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$this->terms[] = array('name' => api_convert_encoding(stripslashes($term),'UTF-8',$charset), 'flag' => $flag);
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}
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}
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/**
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* Class constructor. Just generates an empty 'data' array attribute
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*/
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function __construct() {
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$this->data = array();
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}
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/**
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* Class desctructor. Unsets attributes.
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*/
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function __destruct() {
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unset($this->data);
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unset($this->terms);
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}
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}
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/**
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* Extension of the _IndexableChunk class to make IndexableChunk extensible.
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*/
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class IndexableChunk extends _IndexableChunk
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{
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/**
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* Let add course id term
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*/
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public function addCourseId($course_id) {
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$this->addTerm($course_id, XAPIAN_PREFIX_COURSEID);
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}
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/**
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* Let add tool id term
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*/
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public function addToolId($tool_id) {
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$this->addTerm($tool_id, XAPIAN_PREFIX_TOOLID);
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}
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}
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?>
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