course/modedit.php

   1 <?php // $Id$
   2
   3 //  adds or updates modules in a course using new formslib
   4
   5     require_once("../config.php");
   6     require_once("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     $type          = optional_param('type', '', PARAM_ALPHANUM);
  15
  16     if (!empty($add)) {
  17         $section = required_param('section', PARAM_INT);
  18         $course = required_param('course', PARAM_INT);
  19
  20         if (! $course = get_record("course", "id", $course)) {
  21             error("This course doesn't exist");
  22         }
  23
  24         if (! $module = get_record("modules", "name", $add)) {
  25             error("This module type doesn't exist");
  26         }
  27
  28         $context = get_context_instance(CONTEXT_COURSE, $course->id);
  29         require_capability('moodle/course:manageactivities', $context);
  30
  31         if (!course_allowed_module($course, $module->id)) {
  32             error("This module has been disabled for this particular course");
  33         }
  34
  35         require_login($course->id); // needed to setup proper $COURSE
  36
  37         $form->section    = $section;         // The section number itself
  38         $form->course     = $course->id;
  39         $form->module     = $module->id;
  40         $form->modulename = $module->name;
  41         $form->instance   = "";
  42         $form->coursemodule = "";
  43         $form->add=$add;
  44         $form->return=0;//must be false if this is an add, go back to course view on cancel
  45         if (!empty($type)) {
  46             $form->type = $type;
  47         }
  48
  49         $sectionname = get_section_name($course->format);
  50         $fullmodulename = get_string("modulename", $module->name);
  51
  52         if ($form->section && $course->format != 'site') {
  53             $heading->what = $fullmodulename;
  54             $heading->to   = "$sectionname $form->section";
  55             $pageheading = get_string("addinganewto", "moodle", $heading);
  56         } else {
  57             $pageheading = get_string("addinganew", "moodle", $fullmodulename);
  58         }
  59         $strnav = '';
  60
  61         $CFG->pagepath = 'mod/'.$module->name;
  62         if (!empty($type)) {
  63             $CFG->pagepath .= '/'.$type;
  64         } else {
  65             $CFG->pagepath .= '/mod';
  66         }
  67
  68     } else if (!empty($update)) {
  69         if (! $cm = get_record("course_modules", "id", $update)) {
  70             error("This course module doesn't exist");
  71         }
  72
  73         if (! $course = get_record("course", "id", $cm->course)) {
  74             error("This course doesn't exist");
  75         }
  76
  77         require_login($course->id); // needed to setup proper $COURSE
  78         $context = get_context_instance(CONTEXT_MODULE, $cm->id);
  79         require_capability('moodle/course:manageactivities', $context);
  80
  81         if (! $module = get_record("modules", "id", $cm->module)) {
  82             error("This module doesn't exist");
  83         }
  84
  85         if (! $form = get_record($module->name, "id", $cm->instance)) {
  86             error("The required instance of this module doesn't exist");
  87         }
  88
  89         if (! $cw = get_record("course_sections", "id", $cm->section)) {
  90             error("This course section doesn't exist");
  91         }
  92
  93
  94         $form->coursemodule = $cm->id;
  95         $form->section      = $cm->section;     // The section ID
  96         $form->course       = $course->id;
  97         $form->module       = $module->id;
  98         $form->modulename   = $module->name;
  99         $form->instance     = $cm->instance;
 100         $form->return = $return;
 101         $form->update = $update;
 102
 103         $sectionname = get_section_name($course->format);
 104         $fullmodulename = get_string("modulename", $module->name);
 105
 106         if ($form->section && $course->format != 'site') {
 107             $heading->what = $fullmodulename;
 108             $heading->in   = "$sectionname $cw->section";
 109             $pageheading = get_string("updatingain", "moodle", $heading);
 110         } else {
 111             $pageheading = get_string("updatinga", "moodle", $fullmodulename);
 112         }
 113         $strnav = "<a href=\"$CFG->wwwroot/mod/$module->name/view.php?id=$cm->id\">".format_string($form->name,true)."</a> ->";
 114         $CFG->pagepath = 'mod/'.$module->name;
 115         if (!empty($type)) {
 116             $CFG->pagepath .= '/'.$type;
 117         } else {
 118             $CFG->pagepath .= '/mod';
 119         }
 120     } else {
 121         error('Invalid operation.');
 122     }
 123
 124     $modmoodleform = "$CFG->dirroot/mod/$module->name/mod_form.php";
 125     if (file_exists($modmoodleform)) {
 126         require_once($modmoodleform);
 127
 128     } else {
 129         error('No formslib form description file found for this activity.');
 130     }
 131
 132     $modlib = "$CFG->dirroot/mod/$module->name/lib.php";
 133     if (file_exists($modlib)) {
 134         include_once($modlib);
 135     } else {
 136         error("This module is missing important code! ($modlib)");
 137     }
 138
 139     $mformclassname = 'mod_'.$module->name.'_mod_form';
 140     $cousesection=isset($cw->section)?$cw->section:$section;
 141     $mform=& new $mformclassname($form->instance, $cousesection, ((isset($cm))?$cm:null));
 142     $mform->set_data($form);
 143
 144     if ($mform->is_cancelled()) {
 145         if ($return && isset($cm)){
 146             redirect("$CFG->wwwroot/mod/$module->name/view.php?id=$cm->id");
 147         } else {
 148             redirect("view.php?id=$course->id#section-".$cousesection);
 149         }
 150     } else if ($fromform=$mform->get_data()){
 151         if (empty($fromform->coursemodule)) { //add
 152             if (! $course = get_record("course", "id", $fromform->course)) {
 153                 error("This course doesn't exist");
 154             }
 155             $fromform->instance = '';
 156             $fromform->coursemodule = '';
 157         } else { //update
 158             if (! $cm = get_record("course_modules", "id", $fromform->coursemodule)) {
 159                 error("This course module doesn't exist");
 160             }
 161
 162             if (! $course = get_record("course", "id", $cm->course)) {
 163                 error("This course doesn't exist");
 164             }
 165             $fromform->instance = $cm->instance;
 166             $fromform->coursemodule = $cm->id;
 167         }
 168
 169         require_login($course->id); // needed to setup proper $COURSE
 170
 171         if (!empty($fromform->coursemodule)) {
 172             $context = get_context_instance(CONTEXT_MODULE, $fromform->coursemodule);
 173         } else {
 174             $context = get_context_instance(CONTEXT_COURSE, $course->id);
 175         }
 176         require_capability('moodle/course:manageactivities', $context);
 177
 178         $fromform->course = $course->id;
 179         $fromform->modulename = clean_param($fromform->modulename, PARAM_SAFEDIR);  // For safety
 180
 181         $addinstancefunction    = $fromform->modulename."_add_instance";
 182         $updateinstancefunction = $fromform->modulename."_update_instance";
 183
 184         if (!empty($fromform->update)) {
 185
 186
 187             if (isset($fromform->name)) {
 188                 if (trim($fromform->name) == '') {
 189                     unset($fromform->name);
 190                 }
 191             }
 192
 193             $returnfromfunc = $updateinstancefunction($fromform);
 194             if (!$returnfromfunc) {
 195                 error("Could not update the $fromform->modulename", "view.php?id=$course->id");
 196             }
 197             if (is_string($returnfromfunc)) {
 198                 error($returnfromfunc, "view.php?id=$course->id");
 199             }
 200
 201             if (isset($fromform->visible)) {
 202                 set_coursemodule_visible($fromform->coursemodule, $fromform->visible);
 203             }
 204
 205             if (isset($fromform->groupmode)) {
 206                 set_coursemodule_groupmode($fromform->coursemodule, $fromform->groupmode);
 207             }
 208
 209
 210             add_to_log($course->id, "course", "update mod",
 211                        "../mod/$fromform->modulename/view.php?id=$fromform->coursemodule",
 212                        "$fromform->modulename $fromform->instance");
 213             add_to_log($course->id, $fromform->modulename, "update",
 214                        "view.php?id=$fromform->coursemodule",
 215                        "$fromform->instance", $fromform->coursemodule);
 216
 217         } else if (!empty($fromform->add)){
 218
 219             if (!course_allowed_module($course,$fromform->modulename)) {
 220                 error("This module ($fromform->modulename) has been disabled for this particular course");
 221             }
 222
 223             if (!isset($fromform->name) || trim($fromform->name) == '') {
 224                 $fromform->name = get_string("modulename", $fromform->modulename);
 225             }
 226
 227             $returnfromfunc = $addinstancefunction($fromform);
 228             if (!$returnfromfunc) {
 229                 /*if (file_exists($moderr)) {
 230                     $form = $fromform;
 231                     include_once($moderr);
 232                     die;
 233                 }*/
 234                 error("Could not add a new instance of $fromform->modulename", "view.php?id=$course->id");
 235             }
 236             if (is_string($returnfromfunc)) {
 237                 error($returnfromfunc, "view.php?id=$course->id");
 238             }
 239
 240             if (!isset($fromform->groupmode)) { // to deal with pre-1.5 modules
 241                 $fromform->groupmode = $course->groupmode;  /// Default groupmode the same as course
 242             }
 243
 244             $fromform->instance = $returnfromfunc;
 245
 246             // course_modules and course_sections each contain a reference
 247             // to each other, so we have to update one of them twice.
 248
 249             if (! $fromform->coursemodule = add_course_module($fromform) ) {
 250                 error("Could not add a new course module");
 251             }
 252             if (! $sectionid = add_mod_to_section($fromform) ) {
 253                 error("Could not add the new course module to that section");
 254             }
 255
 256             if (! set_field("course_modules", "section", $sectionid, "id", $fromform->coursemodule)) {
 257                 error("Could not update the course module with the correct section");
 258             }
 259
 260             if (!isset($fromform->visible)) {   // We get the section's visible field status
 261                 $fromform->visible = get_field("course_sections","visible","id",$sectionid);
 262             }
 263             // make sure visibility is set correctly (in particular in calendar)
 264             set_coursemodule_visible($fromform->coursemodule, $fromform->visible);
 265
 266             add_to_log($course->id, "course", "add mod",
 267                        "../mod/$fromform->modulename/view.php?id=$fromform->coursemodule",
 268                        "$fromform->modulename $fromform->instance");
 269             add_to_log($course->id, $fromform->modulename, "add",
 270                        "view.php?id=$fromform->coursemodule",
 271                        "$fromform->instance", $fromform->coursemodule);
 272         } else {
 273             error("Data submitted is invalid.");
 274         }
 275
 276         rebuild_course_cache($course->id);
 277
 278         redirect("$CFG->wwwroot/mod/$module->name/view.php?id=$fromform->coursemodule");
 279         exit;
 280
 281     } else {
 282         if (!empty($cm->id)) {
 283             $context = get_context_instance(CONTEXT_MODULE, $cm->id);
 284         } else {
 285             $context = get_context_instance(CONTEXT_COURSE, $course->id);
 286         }
 287         require_capability('moodle/course:manageactivities', $context);
 288
 289         $streditinga = get_string("editinga", "moodle", $fullmodulename);
 290         $strmodulenameplural = get_string("modulenameplural", $module->name);
 291
 292         print_header_simple($streditinga, '',
 293          "<a href=\"$CFG->wwwroot/mod/$module->name/index.php?id=$course->id\">$strmodulenameplural</a> ->
 294          $strnav $streditinga", $mform->focus(), "", false);
 295
 296         if (!empty($cm->id)) {
 297             $context = get_context_instance(CONTEXT_MODULE, $cm->id);
 298             $currenttab = 'update';
 299             include_once($CFG->dirroot.'/'.$CFG->admin.'/roles/tabs.php');
 300         }
 301         $icon = '<img src="'.$CFG->modpixpath.'/'.$module->name.'/icon.gif" alt=""/>';
 302
 303         print_heading_with_help($pageheading, "mods", $module->name, $icon);
 304         $mform->display();
 305         print_footer($course);
 306     }
 307 ?>