';
}
function insert_field($dataid, $type='text', $name, $des='', $autolink=0){
$newfield = new object;
$newfield->dataid = $dataid;
$newfield->type = $type;
$newfield->name = $name;
$newfield->description = $des;
$newfield->param1 = $autolink;
if (!insert_record('data_fields',$newfield)){
notify('Insertion of new field failed!');
}
}
/***********************************************
* prints the form element in the add template *
* eg: *
* Your Name: [ ] *
***********************************************/
function display_add_field($id, $rid=0){
global $CFG;
if (!$field = get_record('data_fields','id',$id)){
notify("that is not a valid field id!");
exit;
}
if ($rid){
$content = get_record('data_content','fieldid',$id,'recordid',$rid);
if (isset($content->content)){
$content = $content->content;
}
}
else {
$content = '';
}
$str = '';
if ($field->description){
$str .= '
';
}
$str .= '';
return $str;
}
/**********************************************************************
* prints the field that defines the attributes for editting a field, *
* only accessible by teachers *
* eg. *
* name of the picture: [ ] *
* size [ ] *
* width [ ] *
**********************************************************************/
function display_edit_field($id, $dataid=0){
global $CFG, $course;
$newfield = 0;
if (!$field = get_record('data_fields','id',$id)){
if ($dataid){ //if is a new field
$field->dataid = $dataid;
$newfield = 1;
$field->id = 0;
$field->param1 = '';
$field->param2 = '';
$field->param3 = '';
$field->name = '';
$field->description = '';
}
else {
notify("that is not a valid field id!");
exit;
}
}
print_simple_box_start('center','80%');
require_once($CFG->dirroot.'/mod/data/field/'.$this->type.'/mod.html');
print_simple_box_end();
}
/*********************************************************************
* prints the browse mode content when viewed *
* eg. *
* [icon] Word.doc *
**********************************************************************/
function display_browse_field($fieldid, $recordid){
if ($content = get_record('data_content', 'fieldid', $fieldid, 'recordid', $recordid)){
if (isset($content->content)){
$str = format_text($content->content, $content->content1);
} else {
$str = '';
}
return $str;
}
return false;
}
/****************************
* updates a field *
****************************/
function update($fieldobject){
//special thing is checking param1, if not present, set to 0
$fieldobject->param1 = isset($fieldobject->param1)?$fieldobject->param1:0;
if (!update_record('data_fields',$fieldobject)){
notify ('upate failed');
}
}
/************************************
* store content of this field type *
************************************/
function store_data_content($fieldid, $recordid, $value, $name=''){
$content = new object;
$content->fieldid = $fieldid;
$content->recordid = $recordid;
$content->content = clean_param($value, PARAM_NOTAGS);
insert_record('data_content', $content);
}
/*************************************
* update content of this field type *
*************************************/
function update_data_content($fieldid, $recordid, $value, $name=''){
//if data_content already exit, we update
if ($oldcontent = get_record('data_content','fieldid', $fieldid, 'recordid', $recordid)){
$content = new object;
$content->fieldid = $fieldid;
$content->recordid = $recordid;
$content->content = clean_param($value, PARAM_NOTAGS);
$content->id = $oldcontent->id;
update_record('data_content',$content);
}
else { //make 1 if there isn't one already
$this->store_data_content($fieldid, $recordid, $value, $name='');
}
}
/*************************************************************
* this function checks if a field from an add form is empty *
* input $param string $value *
* $param string $name *
* output boolean *
*************************************************************/
function notemptyfield($value, $name){
return !empty($value);
}
/*************************************************************************
* This function checks if there's any file associated with this file, *
* and is uploaded, if so, it deletes it. E.g file or picture type field *
*************************************************************************/
function delete_data_content_files($dataid, $recordid, $content){
//does nothing
}
/*************************************************************************
* This function prints anything that the field wants to output after *
* the html form. This is handy for the javascript rich text editor *
*************************************************************************/
function print_after_form() {
// Overridden as needed in sub classes.
}
}//end of class data_field_base
///Field methods
/*****************************************************************************
/* Given a mode and a dataid, generate a default case template *
* input @param mode - addtemplate, singletemplate, listtempalte, rsstemplate*
* @param dataid *
* output null *
*****************************************************************************/
function data_generate_default_form($dataid, $mode){
if (!$dataid && !$mode){
return false;
}
//get all the fields for that database
if ($fields = get_records('data_fields','dataid',$dataid)){
$data->id = $dataid;
$str = ''; //the string to write to the given $data->{$mode}
//this only applies to add and single template
$str .= '| '; $str .= $cfield->name.':'; $str .= ' | '; $str .=''; $str .= '[['.$cfield->name.']]'; $str .= ' |
| ##Edit## ##More## ##Delete## | |
| '; $str .= $cfield->name.':'; $str .= ' | '; $str .=''; $g = data_get_field($cfield); $str .= $g->display_add_field($cfield->id,$rid); $str .= ' | '; unset($g); } $str .= '
';
}else {
$replacement[] = '';
}
if (data_isowner($record->id) or isteacheredit($course->id)){
$replacement[] = '
';
}else {
$replacement[] = '';
}
$replacement[] = '
';
///actual replacement of the tags
$newtext = preg_replace($patterns, $replacement, $data->{$listmode});
echo $newtext; //prints the template with tags replaced
echo '';
}
}
/************************************************************************
* function that takes in the current data, number of items per page, *
* a search string and prints a preference box in view.php *
* input @param object $data *
* @param int $perpage *
* @param string $search *
* output null *
************************************************************************/
function data_print_preference_form($data, $perpage, $search){
echo '