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initial support for file uploads in new forms library, docs and minor changes to be done later

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This commit is contained in:
skodak 2006-11-09 08:38:40 +00:00
parent 555b75f424
commit 49292f8c8d
1 changed files with 97 additions and 11 deletions
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108
lib/formslib.php
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@ -15,14 +15,17 @@ require_once 'HTML/QuickForm.php';
require_once 'HTML/QuickForm/DHTMLRulesTableless.php';
require_once 'HTML/QuickForm/Renderer/Tableless.php';
require_once $CFG->libdir.'/uploadlib.php';
if ($CFG->debug >= DEBUG_ALL){
PEAR::setErrorHandling(PEAR_ERROR_PRINT);
}
class moodleform {
var $_formname; // form name
var $_form; // quickform object definition
var $_customdata; // globals workaround
var $_formname; // form name
var $_form; // quickform object definition
var $_customdata; // globals workaround
var $_upload_manager; // file upload manager
function moodleform($action, $customdata=null, $method='post', $target='', $attributes=null) {
$this->_formname = rtrim(get_class($this), '_form');
@ -63,6 +66,7 @@ class moodleform {
function _process_submission($method) {
$submission = array();
$files = array();
if ($method == 'post') {
if (!empty($_POST)) {
$submission = $_POST;
@ -81,10 +85,54 @@ class moodleform {
$submission = array();
}
$this->_form->updateSubmission($submission);
$this->_form->updateSubmission($submission, $_FILES);
$this->definition_after_data();
}
function _validate_files() {
if (empty($_FILES)) {
// we do not need to do any checks because no files were submitted
// TODO: find out why server side required rule does not work for uploaded files;
// testing is easily done by always returning true from this function and adding
// $mform->addRule('soubor', get_string('required'), 'required', null, 'server');
// and submitting form without selected file
return true;
}
$errors = array();
$mform =& $this->_form;
// create default upload manager if not already created
if (empty($this->_upload_manager)) {
$this->_upload_manager = new upload_manager();
}
// check the files
$status = $this->_upload_manager->preprocess_files();
// now check that we really want each file
foreach ($_FILES as $elname=>$file) {
if ($mform->elementExists($elname) and $mform->getElementType($elname)=='file') {
$required = $mform->isElementRequired($elname);
if (!empty($this->_upload_manager->files[$elname]['uploadlog']) and empty($this->_upload_manager->files[$elname]['clear'])) {
if (!$required and $file['error'] == UPLOAD_ERR_NO_FILE) {
// file not uploaded and not required - ignore it
continue;
}
$errors[$elname] = $this->_upload_manager->files[$elname]['uploadlog'];
}
} else {
error('Incorrect upload attemp!');
}
}
// return errors if found
if ($status and 0 == count($errors)){
return true;
} else {
return $errors;
}
}
function set_defaults($default_values, $slashed=false) {
if (is_object($default_values)) {
$default_values = (array)$default_values;
@ -98,7 +146,7 @@ class moodleform {
}
function is_validated() {
static $validated = null;
static $validated = null; // one validation is enough
if ($validated === null) {
$internal_val = $this->_form->validate();
@ -111,7 +159,16 @@ class moodleform {
}
$moodle_val = false;
}
$validated = ($internal_val and $moodle_val);
$file_val = $this->_validate_files();
if ($file_val !== true) {
if (!empty($file_val)) {
foreach ($file_val as $element=>$msg) {
$this->_form->setElementError($element, $msg);
}
}
$file_val = false;
}
$validated = ($internal_val and $moodle_val and $file_val);
}
return $validated;
}
@ -131,12 +188,25 @@ class moodleform {
}
}
function save_files($destination) {
if (empty($this->_upload_manager)) {
return false;
}
if ($this->is_submitted() and $this->is_validated()) {
return $this->_upload_manager->save_files($destination);
}
return false;
}
function display() {
$this->_form->display();
}
// abstract method - always override
/**
* abstract method - always override.
*
* If you need special handling of uploaded files, create instance of $this->_upload_manager here.
*/
function definition() {
error('Abstract form_definition() method in class '.get_class($this).' must be overriden, please fix the code.');
}
@ -201,13 +271,16 @@ class MoodleQuickForm extends HTML_QuickForm_DHTMLRulesTableless {
function setType($elementname, $paramtype) {
$this->_types[$elementname] = $paramtype;
}
function setTypes($paramtypes) {
$this->_types = $paramtypes + $this->_types;
}
function updateSubmission($submission) {
function updateSubmission($submission, $files) {
$this->_flagSubmitted = false;
if (empty($submission)) {
$this->_submitValues = array();
$this->_flagSubmitted = false;
} else {
foreach ($submission as $key=>$s) {
if (array_key_exists($key, $this->_types)) {
@ -218,6 +291,19 @@ class MoodleQuickForm extends HTML_QuickForm_DHTMLRulesTableless {
$this->_flagSubmitted = true;
}
if (empty($files)) {
$this->_submitFiles = array();
} else {
if (1 == get_magic_quotes_gpc()) {
foreach ($files as $elname=>$file) {
// dangerous characters in filenames are cleaned later in upload_manager
$files[$elname]['name'] = stripslashes($files[$elname]['name']);
}
}
$this->_submitFiles = $files;
$this->_flagSubmitted = true;
}
// need to tell all elements that they need to update their value attribute.
foreach (array_keys($this->_elements) as $key) {
$this->_elements[$key]->onQuickFormEvent('updateValue', null, $this);
@ -319,7 +405,7 @@ class MoodleQuickForm extends HTML_QuickForm_DHTMLRulesTableless {
foreach ($this->_rules as $elementName => $rules) {
foreach ($rules as $rule) {
if ('client' == $rule['validation']) {
unset($element);
$element = new object();
$dependent = isset($rule['dependent']) && is_array($rule['dependent']);
$rule['message'] = strtr($rule['message'], $js_escape);
@ -489,7 +575,7 @@ function validate_' . $this->_attributes['id'] . '(frm) {
}
$groupmode = groupmode($course, $cm);
if ($course->groupmode or (!$course->groupmodeforce)) {
unset($choices);
$choices = new object();
$choices[NOGROUPS] = get_string('groupsnone');
$choices[SEPARATEGROUPS] = get_string('groupsseparate');
$choices[VISIBLEGROUPS] = get_string('groupsvisible');