course/modedit.php

   1 <?php // $Id$
   2
   3 //  adds or updates modules in a course using new formslib
   4
   5     require("../config.php");
   6     require("lib.php");
   7
   8     require_login();
   9
  10     $add           = optional_param('add', '', PARAM_ALPHA);
  11     $update        = optional_param('update', 0, PARAM_INT);
  12     //return to course/view.php if false or mod/modname/view.php if true
  13     $return        = optional_param('return', 0, PARAM_BOOL);
  14
  15     if (!empty($add)){
  16         $section = required_param('section', PARAM_INT);
  17         $course = required_param('course', PARAM_INT);
  18
  19         if (! $course = get_record("course", "id", $course)) {
  20             error("This course doesn't exist");
  21         }
  22
  23         if (! $module = get_record("modules", "name", $add)) {
  24             error("This module type doesn't exist");
  25         }
  26
  27         $context = get_context_instance(CONTEXT_COURSE, $course->id);
  28         require_capability('moodle/course:manageactivities', $context);
  29
  30         if (!course_allowed_module($course, $module->id)) {
  31             error("This module has been disabled for this particular course");
  32         }
  33
  34         require_login($course->id); // needed to setup proper $COURSE
  35
  36         $form->section    = $section;         // The section number itself
  37         $form->course     = $course->id;
  38         $form->module     = $module->id;
  39         $form->modulename = $module->name;
  40         $form->instance   = "";
  41         $form->coursemodule = "";
  42         $form->add=$add;
  43         $form->return=0;//must be false if this is an add, go back to course view on cancel
  44         if (!empty($type)) {
  45             $form->type = $type;
  46         }
  47
  48         $sectionname = get_section_name($course->format);
  49         $fullmodulename = get_string("modulename", $module->name);
  50
  51         if ($form->section && $course->format != 'site') {
  52             $heading->what = $fullmodulename;
  53             $heading->to   = "$sectionname $form->section";
  54             $pageheading = get_string("addinganewto", "moodle", $heading);
  55         } else {
  56             $pageheading = get_string("addinganew", "moodle", $fullmodulename);
  57         }
  58         $strnav = '';
  59
  60     }elseif (!empty($update)){
  61         if (! $cm = get_record("course_modules", "id", $update)) {
  62             error("This course module doesn't exist");
  63         }
  64
  65         if (! $course = get_record("course", "id", $cm->course)) {
  66             error("This course doesn't exist");
  67         }
  68
  69         require_login($course->id); // needed to setup proper $COURSE
  70         $context = get_context_instance(CONTEXT_COURSE, $course->id);
  71         require_capability('moodle/course:manageactivities', $context);
  72
  73         if (! $module = get_record("modules", "id", $cm->module)) {
  74             error("This module doesn't exist");
  75         }
  76
  77         if (! $form = get_record($module->name, "id", $cm->instance)) {
  78             error("The required instance of this module doesn't exist");
  79         }
  80
  81         if (! $cw = get_record("course_sections", "id", $cm->section)) {
  82             error("This course section doesn't exist");
  83         }
  84
  85
  86         $form->coursemodule = $cm->id;
  87         $form->section      = $cm->section;     // The section ID
  88         $form->course       = $course->id;
  89         $form->module       = $module->id;
  90         $form->modulename   = $module->name;
  91         $form->instance     = $cm->instance;
  92         $form->return = $return;
  93         $form->update = $update;
  94
  95         $sectionname = get_section_name($course->format);
  96         $fullmodulename = get_string("modulename", $module->name);
  97
  98         if ($form->section && $course->format != 'site') {
  99             $heading->what = $fullmodulename;
 100             $heading->in   = "$sectionname $cw->section";
 101             $pageheading = get_string("updatingain", "moodle", $heading);
 102         } else {
 103             $pageheading = get_string("updatinga", "moodle", $fullmodulename);
 104         }
 105         $strnav = "<a href=\"$CFG->wwwroot/mod/$module->name/view.php?id=$cm->id\">".format_string($form->name,true)."</a> ->";
 106     }else{
 107         error('Invalid operation.');
 108     }
 109
 110     $modmoodleform = "$CFG->dirroot/mod/$module->name/mod_form.php";
 111     if (file_exists($modmoodleform)) {
 112         require_once($modmoodleform);
 113
 114     }else{
 115         error('No formslib form description file found for this activity.');
 116     }
 117
 118     $modlib = "$CFG->dirroot/mod/$module->name/lib.php";
 119     if (file_exists($modlib)) {
 120         include_once($modlib);
 121     } else {
 122         error("This module is missing important code! ($modlib)");
 123     }
 124
 125     $mformclassname = 'mod_'.$module->name.'_mod_form';
 126     $cousesection=isset($cw->section)?$cw->section:$section;
 127     $mform=& new $mformclassname($form->instance, $cousesection, ((isset($cm))?$cm:null));
 128     $mform->set_data($form);
 129
 130     if ($mform->is_cancelled()) {
 131         if ($return && isset($cm)){
 132             redirect("$CFG->wwwroot/mod/$module->name/view.php?id=$cm->id");
 133         } else {
 134             redirect("view.php?id=$course->id#section-".$cousesection);
 135         }
 136     } elseif ($fromform=$mform->get_data()){
 137         if (empty($fromform->coursemodule)) { //add
 138             if (! $course = get_record("course", "id", $fromform->course)) {
 139                 error("This course doesn't exist");
 140             }
 141             $fromform->instance = '';
 142             $fromform->coursemodule = '';
 143         } else { //update
 144             if (! $cm = get_record("course_modules", "id", $fromform->coursemodule)) {
 145                 error("This course module doesn't exist");
 146             }
 147
 148             if (! $course = get_record("course", "id", $cm->course)) {
 149                 error("This course doesn't exist");
 150             }
 151             $fromform->instance = $cm->instance;
 152             $fromform->coursemodule = $cm->id;
 153         }
 154
 155         require_login($course->id); // needed to setup proper $COURSE
 156         $context = get_context_instance(CONTEXT_COURSE, $course->id);
 157         require_capability('moodle/course:manageactivities', $context);
 158
 159         $fromform->course = $course->id;
 160         $fromform->modulename = clean_param($fromform->modulename, PARAM_SAFEDIR);  // For safety
 161
 162         $addinstancefunction    = $fromform->modulename."_add_instance";
 163         $updateinstancefunction = $fromform->modulename."_update_instance";
 164
 165         if (!empty($fromform->update)) {
 166
 167
 168             if (isset($fromform->name)) {
 169                 if (trim($fromform->name) == '') {
 170                     unset($fromform->name);
 171                 }
 172             }
 173
 174             $returnfromfunc = $updateinstancefunction($fromform);
 175             if (!$returnfromfunc) {
 176                 error("Could not update the $fromform->modulename", "view.php?id=$course->id");
 177             }
 178             if (is_string($returnfromfunc)) {
 179                 error($returnfromfunc, "view.php?id=$course->id");
 180             }
 181
 182             if (isset($fromform->visible)) {
 183                 set_coursemodule_visible($fromform->coursemodule, $fromform->visible);
 184             }
 185
 186             if (isset($fromform->groupmode)) {
 187                 set_coursemodule_groupmode($fromform->coursemodule, $fromform->groupmode);
 188             }
 189
 190
 191             add_to_log($course->id, "course", "update mod",
 192                        "../mod/$fromform->modulename/view.php?id=$fromform->coursemodule",
 193                        "$fromform->modulename $fromform->instance");
 194             add_to_log($course->id, $fromform->modulename, "update",
 195                        "view.php?id=$fromform->coursemodule",
 196                        "$fromform->instance", $fromform->coursemodule);
 197         }elseif (!empty($fromform->add)){
 198
 199             if (!course_allowed_module($course,$fromform->modulename)) {
 200                 error("This module ($fromform->modulename) has been disabled for this particular course");
 201             }
 202
 203             if (!isset($fromform->name) || trim($fromform->name) == '') {
 204                 $fromform->name = get_string("modulename", $fromform->modulename);
 205             }
 206
 207             $returnfromfunc = $addinstancefunction($fromform);
 208             if (!$returnfromfunc) {
 209                 /*if (file_exists($moderr)) {
 210                     $form = $fromform;
 211                     include_once($moderr);
 212                     die;
 213                 }*/
 214                 error("Could not add a new instance of $fromform->modulename", "view.php?id=$course->id");
 215             }
 216             if (is_string($returnfromfunc)) {
 217                 error($returnfromfunc, "view.php?id=$course->id");
 218             }
 219
 220             if (!isset($fromform->groupmode)) { // to deal with pre-1.5 modules
 221                 $fromform->groupmode = $course->groupmode;  /// Default groupmode the same as course
 222             }
 223
 224             $fromform->instance = $returnfromfunc;
 225
 226             // course_modules and course_sections each contain a reference
 227             // to each other, so we have to update one of them twice.
 228
 229             if (! $fromform->coursemodule = add_course_module($fromform) ) {
 230                 error("Could not add a new course module");
 231             }
 232             if (! $sectionid = add_mod_to_section($fromform) ) {
 233                 error("Could not add the new course module to that section");
 234             }
 235
 236             if (! set_field("course_modules", "section", $sectionid, "id", $fromform->coursemodule)) {
 237                 error("Could not update the course module with the correct section");
 238             }
 239
 240             if (!isset($fromform->visible)) {   // We get the section's visible field status
 241                 $fromform->visible = get_field("course_sections","visible","id",$sectionid);
 242             }
 243             // make sure visibility is set correctly (in particular in calendar)
 244             set_coursemodule_visible($fromform->coursemodule, $fromform->visible);
 245
 246             add_to_log($course->id, "course", "add mod",
 247                        "../mod/$fromform->modulename/view.php?id=$fromform->coursemodule",
 248                        "$fromform->modulename $fromform->instance");
 249             add_to_log($course->id, $fromform->modulename, "add",
 250                        "view.php?id=$fromform->coursemodule",
 251                        "$fromform->instance", $fromform->coursemodule);
 252         }else{
 253             error("Data submitted is invalid.");
 254         }
 255
 256         rebuild_course_cache($course->id);
 257
 258         redirect("$CFG->wwwroot/mod/$module->name/view.php?id=$fromform->coursemodule");
 259         exit;
 260
 261     }else{
 262         $context = get_context_instance(CONTEXT_COURSE, $course->id);
 263         require_capability('moodle/course:manageactivities', $context);
 264
 265         $streditinga = get_string("editinga", "moodle", $fullmodulename);
 266         $strmodulenameplural = get_string("modulenameplural", $module->name);
 267
 268         print_header_simple($streditinga, '',
 269          "<a href=\"$CFG->wwwroot/mod/$module->name/index.php?id=$course->id\">$strmodulenameplural</a> ->
 270          $strnav $streditinga", $mform->focus(), "", false);
 271
 272         if (!empty($cm->id)) {
 273             $context = get_context_instance(CONTEXT_MODULE, $cm->id);
 274             $currenttab = 'update';
 275             include_once($CFG->dirroot.'/'.$CFG->admin.'/roles/tabs.php');
 276         }
 277         $icon = '<img src="'.$CFG->modpixpath.'/'.$module->name.'/icon.gif" alt=""/>';
 278
 279         print_heading_with_help($pageheading, "mods", $module->name, $icon);
 280         $mform->display();
 281         print_footer($course);
 282     }
 283 ?>