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MDL-31675 File browsing support for the Database module

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AMOS BEGIN
 CPY [fields,mod_data],[areacontent,mod_data]
AMOS END
This commit is contained in:
David Mudrak 2012-05-09 01:56:39 +02:00
parent 7978d5dc31
commit 386b67d100
3 changed files with 179 additions and 49 deletions
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1
mod/data/lang/en/data.php
View File

@ -32,6 +32,7 @@ $string['advancedsearch'] = 'Advanced search';
$string['alttext'] = 'Alternative text';
$string['approve'] = 'Approve';
$string['approved'] = 'Approved';
$string['areacontent'] = 'Fields';
$string['ascending'] = 'Ascending';
$string['asearchtemplate'] = 'Advanced search template';
$string['atmaxentry'] = 'You have entered the maximum number of entries allowed!';

111
mod/data/lib.php
View File

@ -2865,6 +2865,10 @@ function data_get_exportdata($dataid, $fields, $selectedfields, $currentgroup=0)
return $exportdata;
}
////////////////////////////////////////////////////////////////////////////////
// File API //
////////////////////////////////////////////////////////////////////////////////
/**
* Lists all browsable file areas
*
@ -2876,8 +2880,7 @@ function data_get_exportdata($dataid, $fields, $selectedfields, $currentgroup=0)
* @return array
*/
function data_get_file_areas($course, $cm, $context) {
$areas = array();
return $areas;
return array('content' => get_string('areacontent', 'mod_data'));
}
/**
@ -2901,55 +2904,65 @@ function mod_data_get_file_info($browser, $areas, $course, $cm, $context, $filea
return null;
}
if ($filearea === 'content') {
if (!$content = $DB->get_record('data_content', array('id'=>$itemid))) {
return null;
}
if (!$field = $DB->get_record('data_fields', array('id'=>$content->fieldid))) {
return null;
}
if (!$record = $DB->get_record('data_records', array('id'=>$content->recordid))) {
return null;
}
if (!$data = $DB->get_record('data', array('id'=>$field->dataid))) {
return null;
}
//check if approved
if ($data->approval and !$record->approved and !data_isowner($record) and !has_capability('mod/data:approve', $context)) {
return null;
}
// group access
if ($record->groupid) {
$groupmode = groups_get_activity_groupmode($cm, $course);
if ($groupmode == SEPARATEGROUPS and !has_capability('moodle/site:accessallgroups', $context)) {
if (!groups_is_member($record->groupid)) {
return null;
}
}
}
$fieldobj = data_get_field($field, $data, $cm);
$filepath = is_null($filepath) ? '/' : $filepath;
$filename = is_null($filename) ? '.' : $filename;
if (!$fieldobj->file_ok($filepath.$filename)) {
return null;
}
$fs = get_file_storage();
if (!($storedfile = $fs->get_file($context->id, 'mod_data', $filearea, $itemid, $filepath, $filename))) {
return null;
}
$urlbase = $CFG->wwwroot.'/pluginfile.php';
return new file_info_stored($browser, $context, $storedfile, $urlbase, $filearea, $itemid, true, true, false);
if (!isset($areas[$filearea])) {
return null;
}
return null;
if (!has_capability('moodle/course:managefiles', $context)) {
return null;
}
if (is_null($itemid)) {
require_once($CFG->dirroot.'/mod/data/locallib.php');
return new data_file_info_container($browser, $course, $cm, $context, $areas, $filearea);
}
if (!$content = $DB->get_record('data_content', array('id'=>$itemid))) {
return null;
}
if (!$field = $DB->get_record('data_fields', array('id'=>$content->fieldid))) {
return null;
}
if (!$record = $DB->get_record('data_records', array('id'=>$content->recordid))) {
return null;
}
if (!$data = $DB->get_record('data', array('id'=>$field->dataid))) {
return null;
}
//check if approved
if ($data->approval and !$record->approved and !data_isowner($record) and !has_capability('mod/data:approve', $context)) {
return null;
}
// group access
if ($record->groupid) {
$groupmode = groups_get_activity_groupmode($cm, $course);
if ($groupmode == SEPARATEGROUPS and !has_capability('moodle/site:accessallgroups', $context)) {
if (!groups_is_member($record->groupid)) {
return null;
}
}
}
$fieldobj = data_get_field($field, $data, $cm);
$filepath = is_null($filepath) ? '/' : $filepath;
$filename = is_null($filename) ? '.' : $filename;
if (!$fieldobj->file_ok($filepath.$filename)) {
return null;
}
$fs = get_file_storage();
if (!($storedfile = $fs->get_file($context->id, 'mod_data', $filearea, $itemid, $filepath, $filename))) {
return null;
}
$urlbase = $CFG->wwwroot.'/pluginfile.php';
return new file_info_stored($browser, $context, $storedfile, $urlbase, $itemid, true, true, false, false);
}
/**

116
mod/data/locallib.php
View File

@ -398,3 +398,119 @@ class data_portfolio_caller extends portfolio_module_caller_base {
return array('mineonly');
}
}
/**
* Class representing the virtual node with all itemids in the file browser
*
* @category files
* @copyright 2012 David Mudrak <david@moodle.com>
* @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
*/
class data_file_info_container extends file_info {
/** @var file_browser */
protected $browser;
/** @var stdClass */
protected $course;
/** @var stdClass */
protected $cm;
/** @var string */
protected $component;
/** @var stdClass */
protected $context;
/** @var array */
protected $areas;
/** @var string */
protected $filearea;
/**
* Constructor (in case you did not realize it ;-)
*
* @param file_browser $browser
* @param stdClass $course
* @param stdClass $cm
* @param stdClass $context
* @param array $areas
* @param string $filearea
*/
public function __construct($browser, $course, $cm, $context, $areas, $filearea) {
parent::__construct($browser, $context);
$this->browser = $browser;
$this->course = $course;
$this->cm = $cm;
$this->component = 'mod_data';
$this->context = $context;
$this->areas = $areas;
$this->filearea = $filearea;
}
/**
* @return array with keys contextid, filearea, itemid, filepath and filename
*/
public function get_params() {
return array(
'contextid' => $this->context->id,
'component' => $this->component,
'filearea' => $this->filearea,
'itemid' => null,
'filepath' => null,
'filename' => null,
);
}
/**
* Can new files or directories be added via the file browser
*
* @return bool
*/
public function is_writable() {
return false;
}
/**
* Should this node be considered as a folder in the file browser
*
* @return bool
*/
public function is_directory() {
return true;
}
/**
* Returns localised visible name of this node
*
* @return string
*/
public function get_visible_name() {
return $this->areas[$this->filearea];
}
/**
* Returns list of children nodes
*
* @return array of file_info instances
*/
public function get_children() {
global $DB;
$children = array();
$itemids = $DB->get_records('files', array('contextid' => $this->context->id, 'component' => $this->component,
'filearea' => $this->filearea), 'itemid DESC', "DISTINCT itemid");
foreach ($itemids as $itemid => $unused) {
if ($child = $this->browser->get_file_info($this->context, 'mod_data', $this->filearea, $itemid)) {
$children[] = $child;
}
}
return $children;
}
/**
* Returns parent file_info instance
*
* @return file_info or null for root
*/
public function get_parent() {
return $this->browser->get_file_info($this->context);
}
}