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chamilo-lms
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Put indexing procedure as a separate method

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skala
ywarnier 13 years ago
parent 37d1ef3802
commit 2523ba9062
1 changed files with 176 additions and 151 deletions
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  1. 325
      main/inc/lib/document.lib.php

325
main/inc/lib/document.lib.php
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@ -2188,162 +2188,15 @@ return 'application/octet-stream';
Display::display_confirmation_message(get_lang('UplUploadSucceeded').'<br />', false);
}
//@todo move this code somewhere else a.k.a Rework search module
if ((api_get_setting('search_enabled') == 'true') && $index_document && !empty($docid)) {
$table_document = Database::get_course_table(TABLE_DOCUMENT);
$result = Database::query("SELECT * FROM $table_document WHERE id = '$docid' LIMIT 1");
if (Database::num_rows($result) == 1) {
$row = Database::fetch_array($result);
$doc_path = api_get_path(SYS_COURSE_PATH).$course_dir.$row['path'];
//TODO: mime_content_type is deprecated, fileinfo php extension is enabled by default as of PHP 5.3.0
// now versions of PHP on Debian testing(5.2.6-5) and Ubuntu(5.2.6-2ubuntu) are lower, so wait for a while
$doc_mime = mime_content_type($doc_path);
//echo $doc_mime;
//TODO: more mime types
$allowed_mime_types = array('text/plain', 'application/pdf', 'application/postscript', 'application/msword', 'text/html', 'text/rtf', 'application/vnd.ms-powerpoint', 'application/vnd.ms-excel');
// mime_content_type does not detect correctly some formats that are going to be supported for index, so an extensions array is used by the moment
if (empty($doc_mime)) {
$allowed_extensions = array('ppt', 'pps', 'xls');
$extensions = preg_split("/[\/\\.]/", $doc_path) ;
$doc_ext = strtolower($extensions[count($extensions) - 1]);
if (in_array($doc_ext, $allowed_extensions)) {
switch ($doc_ext) {
case 'ppt':
case 'pps':
$doc_mime = 'application/vnd.ms-powerpoint';
break;
case 'xls':
$doc_mime = 'application/vnd.ms-excel';
break;
}
}
}
//@todo move this nightmare in a search controller or something like that!!! J.M
if (in_array($doc_mime, $allowed_mime_types) && isset($index_document) && $index_document) {
$file_title = $row['title'];
$file_content = self::get_text_content($doc_path, $doc_mime);
$courseid = api_get_course_id();
$lang = isset($_POST['language']) ? Database::escape_string($_POST['language']) : 'english';
require_once api_get_path(LIBRARY_PATH).'search/DokeosIndexer.class.php';
require_once api_get_path(LIBRARY_PATH).'search/IndexableChunk.class.php';
$ic_slide = new IndexableChunk();
$ic_slide->addValue('title', $file_title);
$ic_slide->addCourseId($courseid);
$ic_slide->addToolId(TOOL_DOCUMENT);
$xapian_data = array(
SE_COURSE_ID => $courseid,
SE_TOOL_ID => TOOL_DOCUMENT,
SE_DATA => array('doc_id' => $docid),
SE_USER => api_get_user_id(),
);
//var_dump($xapian_data); echo '<pre>';
$ic_slide->xapian_data = serialize($xapian_data);
$di = new DokeosIndexer();
$return = $di->connectDb(null, null, $lang);
$specific_fields = get_specific_field_list();
// process different depending on what to do if file exists
/**
* FIXME: Find a way to really verify if the file had been
* overwriten. Now all work is done at
* handle_uploaded_document() and it's difficult to verify it
*/
if (!empty($if_exists) && $if_exists == 'overwrite') {
// overwrite the file on search engine
// actually, it consists on delete terms from db, insert new ones, create a new search engine document, and remove the old one
// Get search_did
$tbl_se_ref = Database::get_main_table(TABLE_MAIN_SEARCH_ENGINE_REF);
$sql = 'SELECT * FROM %s WHERE course_code=\'%s\' AND tool_id=\'%s\' AND ref_id_high_level=%s LIMIT 1';
$sql = sprintf($sql, $tbl_se_ref, $courseid, TOOL_DOCUMENT, $docid);
$res = Database::query($sql);
if (Database::num_rows($res) > 0) {
$se_ref = Database::fetch_array($res);
$di->remove_document($se_ref['search_did']);
$all_specific_terms = '';
foreach ($specific_fields as $specific_field) {
delete_all_specific_field_value($courseid, $specific_field['id'], TOOL_DOCUMENT, $docid);
// Update search engine
$sterms = trim($_REQUEST[$specific_field['code']]);
$all_specific_terms .= ' '. $sterms;
$sterms = explode(',', $sterms);
foreach ($sterms as $sterm) {
$sterm = trim($sterm);
if (!empty($sterm)) {
$ic_slide->addTerm($sterm, $specific_field['code']);
// updated the last param here from $value to $sterm without being sure - see commit15464
add_specific_field_value($specific_field['id'], $courseid, TOOL_DOCUMENT, $docid, $sterm);
}
}
}
// Add terms also to content to make terms findable by probabilistic search
$file_content = $all_specific_terms .' '. $file_content;
$ic_slide->addValue('content', $file_content);
$di->addChunk($ic_slide);
// Index and return a new search engine document id
$did = $di->index();
//var_dump($did);
if ($did) {
// update the search_did on db
$tbl_se_ref = Database::get_main_table(TABLE_MAIN_SEARCH_ENGINE_REF);
$sql = 'UPDATE %s SET search_did=%d WHERE id=%d LIMIT 1';
$sql = sprintf($sql, $tbl_se_ref, (int)$did, (int)$se_ref['id']);
Database::query($sql);
}
}
} else {
// Add all terms
$all_specific_terms = '';
foreach ($specific_fields as $specific_field) {
if (isset($_REQUEST[$specific_field['code']])) {
$sterms = trim($_REQUEST[$specific_field['code']]);
$all_specific_terms .= ' '. $sterms;
if (!empty($sterms)) {
$sterms = explode(',', $sterms);
foreach ($sterms as $sterm) {
$ic_slide->addTerm(trim($sterm), $specific_field['code']);
add_specific_field_value($specific_field['id'], $courseid, TOOL_DOCUMENT, $docid, $sterm);
}
}
}
}
// Add terms also to content to make terms findable by probabilistic search
$file_content = $all_specific_terms .' '. $file_content;
$ic_slide->addValue('content', $file_content);
$di->addChunk($ic_slide);
// Index and return search engine document id
$did = $di->index();
if ($did) {
// Save it to db
$tbl_se_ref = Database::get_main_table(TABLE_MAIN_SEARCH_ENGINE_REF);
$sql = 'INSERT INTO %s (id, course_code, tool_id, ref_id_high_level, search_did)
VALUES (NULL , \'%s\', \'%s\', %s, %s)';
$sql = sprintf($sql, $tbl_se_ref, $courseid, TOOL_DOCUMENT, $docid, $did);
Database::query($sql);
}
}
}
}
} // end of document indexation loop
/*// Check for missing images in html files
$missing_files = check_for_missing_files($base_work_dir.$new_path);
if ($missing_files && $show_output) {
// Show a form to upload the missing files
Display::display_normal_message(build_missing_files_form($missing_files, $path, $files['file']['name']), false);
}*/
if ($index_document) {
$idx_doc = self::index_document($docid,$course_info['code'],null,api_get_user_id(),Database::escape_string($_POST['language']),$if_exists);
}
if (!empty($docid) && is_numeric($docid)) {
$document_data = self::get_document_data_by_id($docid, $course_info['code']);
return $document_data;
@ -2901,5 +2754,177 @@ return 'application/octet-stream';
return false;
}
}
/**
* Index a given document
* @param int Document ID inside its corresponding course
* @param string Course code
* @param int Session ID (not used yet)
* @param string Language of document's content (defaults to course language)
* @param string What to do if the file already exists (default or overwrite)
* @return void
*/
public function index_document($docid, $course_code, $session_id=0, $lang='english', $if_exists = '') {
if (api_get_setting('search_enabled') !== 'true') {
return false;
}
if (empty($docid) or $docid != intval($docid)) {
return false;
}
if (empty($session_id)) {
$session_id = api_get_session_id();
}
$course_info = api_get_course_info($course_code);
$course_dir = $course_info['path'].'/document';
$sys_course_path = api_get_path(SYS_COURSE_PATH);
$base_work_dir = $sys_course_path.$course_dir;
$table_document = Database::get_course_table(TABLE_DOCUMENT);
$result = Database::query("SELECT path, title FROM $table_document WHERE id = '$docid' LIMIT 1");
if (Database::num_rows($result) == 1) {
$row = Database::fetch_array($result);
$doc_path = api_get_path(SYS_COURSE_PATH).$course_dir.$row['path'];
//TODO: mime_content_type is deprecated, fileinfo php extension is enabled by default as of PHP 5.3.0
// now versions of PHP on Debian testing(5.2.6-5) and Ubuntu(5.2.6-2ubuntu) are lower, so wait for a while
$doc_mime = mime_content_type($doc_path);
//echo $doc_mime;
$allowed_mime_types = self::file_get_mime_type(true);
// mime_content_type does not detect correctly some formats that are going to be supported for index, so an extensions array is used for the moment
if (empty($doc_mime)) {
$allowed_extensions = array('doc', 'docx', 'ppt', 'pptx', 'pps', 'ppsx', 'xls', 'xlsx');
$extensions = preg_split("/[\/\\.]/", $doc_path) ;
$doc_ext = strtolower($extensions[count($extensions) - 1]);
if (in_array($doc_ext, $allowed_extensions)) {
switch ($doc_ext) {
case 'ppt':
case 'pps':
$doc_mime = 'application/vnd.ms-powerpoint';
break;
case 'xls':
$doc_mime = 'application/vnd.ms-excel';
break;
}
}
}
//@todo move this nightmare in a search controller or something like that!!! J.M
if (in_array($doc_mime, $allowed_mime_types)) {
$file_title = $row['title'];
$file_content = self::get_text_content($doc_path, $doc_mime);
$course_code = Database::escape_string($course_code);
require_once api_get_path(LIBRARY_PATH).'search/DokeosIndexer.class.php';
require_once api_get_path(LIBRARY_PATH).'search/IndexableChunk.class.php';
$ic_slide = new IndexableChunk();
$ic_slide->addValue('title', $file_title);
$ic_slide->addCourseId($course_code);
$ic_slide->addToolId(TOOL_DOCUMENT);
$xapian_data = array(
SE_COURSE_ID => $course_code,
SE_TOOL_ID => TOOL_DOCUMENT,
SE_DATA => array('doc_id' => $docid),
SE_USER => api_get_user_id(),
);
//var_dump($xapian_data); echo '<pre>';
$ic_slide->xapian_data = serialize($xapian_data);
$di = new DokeosIndexer();
$return = $di->connectDb(null, null, $lang);
$specific_fields = get_specific_field_list();
// process different depending on what to do if file exists
/**
* FIXME: Find a way to really verify if the file had been
* overwriten. Now all work is done at
* handle_uploaded_document() and it's difficult to verify it
*/
if (!empty($if_exists) && $if_exists == 'overwrite') {
// Overwrite the file on search engine
// Actually, it consists on a delete of terms from db,
// insert new ones, create a new search engine document,
// and remove the old one
// Get search_did
$tbl_se_ref = Database::get_main_table(TABLE_MAIN_SEARCH_ENGINE_REF);
$sql = 'SELECT * FROM %s WHERE course_code=\'%s\' AND tool_id=\'%s\' AND ref_id_high_level=%s LIMIT 1';
$sql = sprintf($sql, $tbl_se_ref, $course_code, TOOL_DOCUMENT, $docid);
$res = Database::query($sql);
if (Database::num_rows($res) > 0) {
$se_ref = Database::fetch_array($res);
$di->remove_document($se_ref['search_did']);
$all_specific_terms = '';
foreach ($specific_fields as $specific_field) {
delete_all_specific_field_value($course_code, $specific_field['id'], TOOL_DOCUMENT, $docid);
// Update search engine
$sterms = trim($_REQUEST[$specific_field['code']]);
$all_specific_terms .= ' '. $sterms;
$sterms = explode(',', $sterms);
foreach ($sterms as $sterm) {
$sterm = trim($sterm);
if (!empty($sterm)) {
$ic_slide->addTerm($sterm, $specific_field['code']);
// updated the last param here from $value to $sterm without being sure - see commit15464
add_specific_field_value($specific_field['id'], $course_code, TOOL_DOCUMENT, $docid, $sterm);
}
}
}
// Add terms also to content to make terms findable by probabilistic search
$file_content = $all_specific_terms .' '. $file_content;
$ic_slide->addValue('content', $file_content);
$di->addChunk($ic_slide);
// Index and return a new search engine document id
$did = $di->index();
//var_dump($did);
if ($did) {
// update the search_did on db
$tbl_se_ref = Database::get_main_table(TABLE_MAIN_SEARCH_ENGINE_REF);
$sql = 'UPDATE %s SET search_did=%d WHERE id=%d LIMIT 1';
$sql = sprintf($sql, $tbl_se_ref, (int)$did, (int)$se_ref['id']);
Database::query($sql);
}
}
} else {
// Add all terms
$all_specific_terms = '';
foreach ($specific_fields as $specific_field) {
if (isset($_REQUEST[$specific_field['code']])) {
$sterms = trim($_REQUEST[$specific_field['code']]);
$all_specific_terms .= ' '. $sterms;
if (!empty($sterms)) {
$sterms = explode(',', $sterms);
foreach ($sterms as $sterm) {
$ic_slide->addTerm(trim($sterm), $specific_field['code']);
add_specific_field_value($specific_field['id'], $course_code, TOOL_DOCUMENT, $docid, $sterm);
}
}
}
}
// Add terms also to content to make terms findable by probabilistic search
$file_content = $all_specific_terms .' '. $file_content;
$ic_slide->addValue('content', $file_content);
$di->addChunk($ic_slide);
// Index and return search engine document id
$did = $di->index();
if ($did) {
// Save it to db
$tbl_se_ref = Database::get_main_table(TABLE_MAIN_SEARCH_ENGINE_REF);
$sql = 'INSERT INTO %s (id, course_code, tool_id, ref_id_high_level, search_did)
VALUES (NULL , \'%s\', \'%s\', %s, %s)';
$sql = sprintf($sql, $tbl_se_ref, $course_code, TOOL_DOCUMENT, $docid, $did);
Database::query($sql);
}
}
}
}
}
}
//end class DocumentManager
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