You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
366 lines
12 KiB
366 lines
12 KiB
<?php
|
|
// This file is part of Moodle - http://moodle.org/
|
|
//
|
|
// Moodle is free software: you can redistribute it and/or modify
|
|
// it under the terms of the GNU General Public License as published by
|
|
// the Free Software Foundation, either version 3 of the License, or
|
|
// (at your option) any later version.
|
|
//
|
|
// Moodle is distributed in the hope that it will be useful,
|
|
// but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
// GNU General Public License for more details.
|
|
//
|
|
// You should have received a copy of the GNU General Public License
|
|
// along with Moodle. If not, see <http://www.gnu.org/licenses/>.
|
|
|
|
/**
|
|
* Search area for mod_data activity entries.
|
|
*
|
|
* @package mod_data
|
|
* @copyright 2016 Devang Gaur
|
|
* @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
|
|
*/
|
|
|
|
namespace mod_data\search;
|
|
|
|
defined('MOODLE_INTERNAL') || die();
|
|
|
|
require_once($CFG->dirroot . '/mod/data/lib.php');
|
|
require_once($CFG->dirroot . '/lib/grouplib.php');
|
|
|
|
/**
|
|
* Search area for mod_data activity entries.
|
|
*
|
|
* @package mod_data
|
|
* @copyright 2016 Devang Gaur
|
|
* @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
|
|
*/
|
|
class entry extends \core_search\base_mod {
|
|
|
|
/**
|
|
* @var array Internal quick static cache.
|
|
*/
|
|
protected $entriesdata = array();
|
|
|
|
/**
|
|
* Returns recordset containing required data for indexing database entries.
|
|
*
|
|
* @param int $modifiedfrom timestamp
|
|
* @param \context|null $context Optional context to restrict scope of returned results
|
|
* @return moodle_recordset|null Recordset (or null if no results)
|
|
*/
|
|
public function get_document_recordset($modifiedfrom = 0, \context $context = null) {
|
|
global $DB;
|
|
|
|
list ($contextjoin, $contextparams) = $this->get_context_restriction_sql(
|
|
$context, 'data', 'd', SQL_PARAMS_NAMED);
|
|
if ($contextjoin === null) {
|
|
return null;
|
|
}
|
|
|
|
$sql = "SELECT dr.*, d.course
|
|
FROM {data_records} dr
|
|
JOIN {data} d ON d.id = dr.dataid
|
|
$contextjoin
|
|
WHERE dr.timemodified >= :timemodified";
|
|
return $DB->get_recordset_sql($sql,
|
|
array_merge($contextparams, ['timemodified' => $modifiedfrom]));
|
|
}
|
|
|
|
/**
|
|
* Returns the documents associated with this glossary entry id.
|
|
*
|
|
* @param stdClass $entry glossary entry.
|
|
* @param array $options
|
|
* @return \core_search\document
|
|
*/
|
|
public function get_document($entry, $options = array()) {
|
|
try {
|
|
$cm = $this->get_cm('data', $entry->dataid, $entry->course);
|
|
$context = \context_module::instance($cm->id);
|
|
} catch (\dml_missing_record_exception $ex) {
|
|
// Notify it as we run here as admin, we should see everything.
|
|
debugging('Error retrieving mod_data ' . $entry->id . ' document, not all required data is available: ' .
|
|
$ex->getMessage(), DEBUG_DEVELOPER);
|
|
return false;
|
|
} catch (\dml_exception $ex) {
|
|
// Notify it as we run here as admin, we should see everything.
|
|
debugging('Error retrieving mod_data' . $entry->id . ' document: ' . $ex->getMessage(), DEBUG_DEVELOPER);
|
|
return false;
|
|
}
|
|
|
|
// Prepare associative array with data from DB.
|
|
$doc = \core_search\document_factory::instance($entry->id, $this->componentname, $this->areaname);
|
|
$doc->set('contextid', $context->id);
|
|
$doc->set('courseid', $entry->course);
|
|
$doc->set('userid', $entry->userid);
|
|
if ($entry->groupid > 0) {
|
|
$doc->set('groupid', $entry->groupid);
|
|
}
|
|
$doc->set('owneruserid', \core_search\manager::NO_OWNER_ID);
|
|
$doc->set('modified', $entry->timemodified);
|
|
|
|
$indexfields = $this->get_fields_for_entries($entry);
|
|
|
|
if (count($indexfields) < 2) {
|
|
return false;
|
|
}
|
|
|
|
// All fields should be already returned as plain text by data_field_base::get_content_value.
|
|
$doc->set('title', $indexfields[0]);
|
|
$doc->set('content', $indexfields[1]);
|
|
|
|
if (isset($indexfields[2])) {
|
|
$doc->set('description1', $indexfields[2]);
|
|
}
|
|
|
|
if (isset($indexfields[3])) {
|
|
$doc->set('description2', $indexfields[3]);
|
|
}
|
|
|
|
return $doc;
|
|
}
|
|
|
|
/**
|
|
* Whether the user can access the document or not.
|
|
*
|
|
* @throws \dml_missing_record_exception
|
|
* @throws \dml_exception
|
|
* @param int $id Glossary entry id
|
|
* @return bool
|
|
*/
|
|
public function check_access($id) {
|
|
global $DB, $USER;
|
|
|
|
if (isguestuser()) {
|
|
return \core_search\manager::ACCESS_DENIED;
|
|
}
|
|
|
|
$now = time();
|
|
|
|
$sql = "SELECT dr.*, d.*
|
|
FROM {data_records} dr
|
|
JOIN {data} d ON d.id = dr.dataid
|
|
WHERE dr.id = ?";
|
|
|
|
$entry = $DB->get_record_sql($sql, array( $id ), IGNORE_MISSING);
|
|
|
|
if (!$entry) {
|
|
return \core_search\manager::ACCESS_DELETED;
|
|
}
|
|
|
|
if (($entry->timeviewfrom && $now < $entry->timeviewfrom) || ($entry->timeviewto && $now > $entry->timeviewto)) {
|
|
return \core_search\manager::ACCESS_DENIED;
|
|
}
|
|
|
|
$cm = $this->get_cm('data', $entry->dataid, $entry->course);
|
|
$context = \context_module::instance($cm->id);
|
|
|
|
$canmanageentries = has_capability('mod/data:manageentries', $context);
|
|
|
|
if (!has_capability('mod/data:viewentry', $context)) {
|
|
return \core_search\manager::ACCESS_DENIED;
|
|
}
|
|
|
|
$numberofentriesindb = $DB->count_records('data_records', array('dataid' => $entry->dataid));
|
|
$requiredentriestoview = $entry->requiredentriestoview;
|
|
|
|
if ($requiredentriestoview && ($requiredentriestoview > $numberofentriesindb) &&
|
|
($USER->id != $entry->userid) && !$canmanageentries) {
|
|
return \core_search\manager::ACCESS_DENIED;
|
|
}
|
|
|
|
if ($entry->approval && !$entry->approved && ($entry->userid != $USER->id) && !$canmanageentries) {
|
|
return \core_search\manager::ACCESS_DENIED;
|
|
}
|
|
|
|
$currentgroup = groups_get_activity_group($cm, true);
|
|
$groupmode = groups_get_activity_groupmode($cm);
|
|
|
|
if (($groupmode == 1) && ($entry->groupid != $currentgroup) && !$canmanageentries) {
|
|
return \core_search\manager::ACCESS_DENIED;
|
|
}
|
|
|
|
return \core_search\manager::ACCESS_GRANTED;
|
|
}
|
|
|
|
/**
|
|
* Link to database entry.
|
|
*
|
|
* @param \core_search\document $doc
|
|
* @return \moodle_url
|
|
*/
|
|
public function get_doc_url(\core_search\document $doc) {
|
|
$entry = $this->get_entry($doc->get('itemid'));
|
|
return new \moodle_url('/mod/data/view.php', array( 'd' => $entry->dataid, 'rid' => $entry->id ));
|
|
}
|
|
|
|
/**
|
|
* Link to the database activity.
|
|
*
|
|
* @param \core_search\document $doc
|
|
* @return \moodle_url
|
|
*/
|
|
public function get_context_url(\core_search\document $doc) {
|
|
$entry = $this->get_entry($doc->get('itemid'));
|
|
return new \moodle_url('/mod/data/view.php', array('d' => $entry->dataid));
|
|
}
|
|
|
|
/**
|
|
* Returns true if this area uses file indexing.
|
|
*
|
|
* @return bool
|
|
*/
|
|
public function uses_file_indexing() {
|
|
return true;
|
|
}
|
|
|
|
/**
|
|
* Add the database entries attachments.
|
|
*
|
|
* @param \core_search\document $doc
|
|
* @return void
|
|
*/
|
|
public function attach_files($doc) {
|
|
global $DB;
|
|
|
|
$entryid = $doc->get('itemid');
|
|
|
|
try {
|
|
$entry = $this->get_entry($entryid);
|
|
} catch (\dml_missing_record_exception $e) {
|
|
debugging('Could not get record to attach files to '.$doc->get('id'), DEBUG_DEVELOPER);
|
|
return;
|
|
}
|
|
|
|
$cm = $this->get_cm('data', $entry->dataid, $doc->get('courseid'));
|
|
$context = \context_module::instance($cm->id);
|
|
|
|
// Get the files and attach them.
|
|
$fs = get_file_storage();
|
|
$files = $fs->get_area_files($context->id, 'mod_data', 'content', $entryid, 'filename', false);
|
|
foreach ($files as $file) {
|
|
$doc->add_stored_file($file);
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Get database entry data
|
|
*
|
|
* @throws \dml_exception
|
|
* @param int $entryid
|
|
* @return stdClass
|
|
*/
|
|
protected function get_entry($entryid) {
|
|
global $DB;
|
|
|
|
if (empty($this->entriesdata[$entryid])) {
|
|
$this->entriesdata[$entryid] = $DB->get_record('data_records', array( 'id' => $entryid ), '*', MUST_EXIST);
|
|
}
|
|
|
|
return $this->entriesdata[$entryid];
|
|
}
|
|
|
|
/**
|
|
* get_fields_for_entries
|
|
*
|
|
* @param StdClass $entry
|
|
* @return array
|
|
*/
|
|
protected function get_fields_for_entries($entry) {
|
|
global $DB;
|
|
|
|
$indexfields = array();
|
|
$validfieldtypes = array('text', 'textarea', 'menu', 'radiobutton', 'checkbox', 'multimenu', 'url');
|
|
|
|
$sql = "SELECT dc.*, df.name AS fldname,
|
|
df.type AS fieldtype, df.required
|
|
FROM {data_content} dc, {data_fields} df
|
|
WHERE dc.fieldid = df.id
|
|
AND dc.recordid = :recordid";
|
|
|
|
$contents = $DB->get_records_sql($sql, array('recordid' => $entry->id));
|
|
$filteredcontents = array();
|
|
|
|
$template = $DB->get_record_sql('SELECT addtemplate FROM {data} WHERE id = ?', array($entry->dataid));
|
|
$template = $template->addtemplate;
|
|
|
|
// Filtering out the data_content records having invalid fieldtypes.
|
|
foreach ($contents as $content) {
|
|
if (in_array($content->fieldtype, $validfieldtypes)) {
|
|
$filteredcontents[] = $content;
|
|
}
|
|
}
|
|
|
|
foreach ($filteredcontents as $content) {
|
|
$classname = $this->get_field_class_name($content->fieldtype);
|
|
$content->priority = $classname::get_priority();
|
|
$content->addtemplateposition = strpos($template, '[['.$content->fldname.']]');
|
|
}
|
|
|
|
$orderqueue = new \SPLPriorityQueue();
|
|
|
|
// Filtering out contents which belong to fields that aren't present in the addtemplate of the database activity instance.
|
|
foreach ($filteredcontents as $content) {
|
|
|
|
if ($content->addtemplateposition >= 0) {
|
|
$orderqueue->insert($content, $content->addtemplateposition);
|
|
}
|
|
}
|
|
|
|
$filteredcontents = array();
|
|
|
|
while ($orderqueue->valid()) {
|
|
$filteredcontents[] = $orderqueue->extract();
|
|
}
|
|
|
|
// SPLPriorityQueue sorts according to descending order of the priority (here, addtemplateposition).
|
|
$filteredcontents = array_reverse($filteredcontents);
|
|
|
|
// Using a CUSTOM SPLPriorityQueure instance to sort out the filtered contents according to these rules :
|
|
// 1. Priorities in $fieldtypepriorities
|
|
// 2. Compulsory fieldtypes are to be given the top priority.
|
|
$contentqueue = new sortedcontentqueue($filteredcontents);
|
|
|
|
foreach ($filteredcontents as $key => $content) {
|
|
$contentqueue->insert($content, $key);
|
|
}
|
|
|
|
while ($contentqueue->valid()) {
|
|
|
|
$content = $contentqueue->extract();
|
|
$classname = $this->get_field_class_name($content->fieldtype);
|
|
$indexfields[] = $classname::get_content_value($content);
|
|
}
|
|
|
|
// Limited to 4 fields as a document only has 4 content fields.
|
|
if (count($indexfields) > 4) {
|
|
$indexfields[3] = implode(' ', array_slice($indexfields, 3));
|
|
}
|
|
return $indexfields;
|
|
}
|
|
|
|
/**
|
|
* Returns the class name for that field type and includes it.
|
|
*
|
|
* @param string $fieldtype
|
|
* @return string
|
|
*/
|
|
protected function get_field_class_name($fieldtype) {
|
|
global $CFG;
|
|
|
|
$fieldtype = trim($fieldtype);
|
|
require_once($CFG->dirroot . '/mod/data/field/' . $fieldtype . '/field.class.php');
|
|
return 'data_field_' . $fieldtype;
|
|
}
|
|
|
|
/**
|
|
* Confirms that data entries support group restrictions.
|
|
*
|
|
* @return bool True
|
|
*/
|
|
public function supports_group_restriction() {
|
|
return true;
|
|
}
|
|
}
|
|
|