MDL-15402 implementation of repositories administration. Administrato…

…r can hide/show/sort/setup repositories. This code has been commited in order to be used by FilePicker.

Because it's doing the same thing than the filter manager, the code is similar. Some generic code need to be done (filter and repository code should use the same function, and the current generic filter lib should be refactor, at least their name). Optimization of original code should also be done if necessary.

admin/repositories.php

@@ -0,0 +1,102 @@
+<?php // $Id$
+
+    require_once('../config.php');
+
+    $action     = optional_param('action', '', PARAM_ACTION);
+    $repositorypath = optional_param('filterpath', '', PARAM_PATH);
+
+    require_login();
+    require_capability('moodle/site:config', get_context_instance(CONTEXT_SYSTEM));
+
+    $returnurl = "$CFG->wwwroot/$CFG->admin/settings.php?section=managereps";
+
+    if (!confirm_sesskey()) {
+        redirect($returnurl);
+    }
+
+    // get a list of installed repositories
+    $installedrepositories = array();
+    $repositorylocations = array('repository');
+    foreach ($repositorylocations as $repositorylocation) {
+        $plugins = get_list_of_plugins($repositorylocation);
+        foreach ($plugins as $plugin) {
+            $pluginpath = "$CFG->dirroot/$repositorylocation/$plugin/version.php";
+            if (is_readable($pluginpath)) {
+                $installedrepositories["$repositorylocation/$plugin"] = "$repositorylocation/$plugin";
+            }
+        }
+    }
+
+    // get all the currently selected repositories
+    if (!empty($CFG->textfilters)) {
+        $activerepositories = explode(',', $CFG->textfilters);
+    } else {
+        $activerepositories = array();
+    }
+
+    //======================
+    // Process Actions
+    //======================
+
+    switch ($action) {
+
+    case 'hide':
+        $key=array_search($repositorypath, $activerepositories);
+        // check repositorypath is valid
+        if ($key===false) {
+            break;
+        }
+        // just delete it
+        unset($activerepositories[$key]);
+        break;
+
+    case 'show':
+        // check repositorypath is valid
+        if (!array_key_exists($repositorypath, $installedrepositories)) {
+            print_error('filternotinstalled', 'error', $url, $repositorypath);
+        } elseif (array_search($repositorypath,$activerepositories)) {
+            // repositorypath is already active - doubleclick??
+        } else {
+            // add it to installed filters
+            $activerepositories[] = $repositorypath;
+            $activerepositories = array_unique($activerepositories);
+        }
+        break;
+
+    case 'down':
+        $key=array_search($repositorypath, $activerepositories);
+        // check repositorypath is valid
+        if ($key===false) {
+            print_error("filternotactive", 'error', $url, $repositorypath );
+        } elseif ($key>=(count($activerepositories)-1)) {
+            // cannot be moved any further down - doubleclick??
+        } else {
+            // swap with $key+1
+            $fsave = $activerepositories[$key];
+            $activerepositories[$key] = $activerepositories[$key+1];
+            $activerepositories[$key+1] = $fsave;
+        }
+        break;
+
+    case 'up':
+        $key=array_search($repositorypath, $activerepositories);
+        // check repositorypath is valid
+        if ($key===false) {
+            print_error("filternotactive", 'error', $url, $repositorypath );
+        } elseif ($key<1) {
+            //cannot be moved any further up - doubleclick??
+        } else {
+            // swap with $key-1
+            $fsave = $activerepositories[$key];
+            $activerepositories[$key] = $activerepositories[$key-1];
+            $activerepositories[$key-1] = $fsave;
+        }
+        break;
+    }
+
+    // save, reset cache and return
+    set_config('textfilters', implode(',', $activerepositories));
+    reset_text_filters_cache();
+    redirect($returnurl);
+
+?>

admin/settings/plugins.php

@@ -68,6 +68,59 @@
         }
     }
 
+    //"Repositories" menu (inside "Site Administration block" > "Modules menu")
+    $ADMIN->add('modules', new admin_category('repsettings', get_string('repositories')));
+
+    $temp = new admin_settingpage('managereps', get_string('repsettings', 'admin'));
+
+    if ($ADMIN->fulltree) {
+        $items = array();
+        $items[] = new admin_setting_managerepositories();
+        foreach ($items as $item) {
+            $temp->add($item);
+        }
+    }
+
+    $ADMIN->add('repsettings', $temp);
+
+    if (empty($CFG->textfilters)) {
+        $activerepositories = array();
+    } else {
+        $activerepositories = explode(',', $CFG->textfilters);
+    }
+
+    $replocations = array('repository');
+    foreach ($replocations as $replocation) {
+        $repositories = get_list_of_plugins($replocation);
+
+        $repbyname = array();
+
+        foreach ($repositories as $repository) {
+            $strrepname = get_string('repositoryname', "repository_$repository",null,"$CFG->dirroot/$replocation/$plugin/lang/");
+
+            if ($strrepname == '[[repositoryname]]') {
+                $textlib = textlib_get_instance();
+                $strrepname = $textlib->strtotitle($repository);
+            }
+            $repbyname[$strrepname] = "$replocation/$repository";
+        }
+        ksort($repbyname);
+
+        foreach ($repbyname as $strrepname=>$repositoryfull) {
+            if (file_exists("$CFG->dirroot/$repositoryfull/pluginsettings.php")) {
+
+                $settings = new admin_settingpage('version'.str_replace('/', '', $repositoryfull), $strrepname, 'moodle/site:config', !in_array($repositoryfull, $activerepositories));
+
+                    if ($ADMIN->fulltree) {
+                    include("$CFG->dirroot/$repositoryfull/pluginsettings.php");
+                }
+                $ADMIN->add('repsettings', $settings);
+
+            }
+        }
+    }
+    //end of admin repositories menu
+
     $ADMIN->add('modules', new admin_category('filtersettings', get_string('managefilters')));
     // "filtersettings" settingpage
     $temp = new admin_settingpage('managefilters', get_string('filtersettings', 'admin'));

lang/en_utf8/admin.php

@@ -621,6 +621,8 @@
 $string['releasenoteslink'] = 'For information about this version of Moodle, please see the online <a target=\"_blank\" href=\"$a\">Release Notes</a>';
 $string['remotelangnotavailable'] = 'Because Moodle can not connect to download.moodle.org, we are unable to do language pack installation automatically. Please download the appropriate zip file(s) from the list below, copy them to your $a directory and unzip them manually.';
 $string['renameerrors'] = 'Rename errors';
+$string['repsettings'] = 'Manage Repositories';
+$string['repsettingsgeneral'] = 'General repositories settings';
 $string['requiredtemplate'] = 'Required. You may use template syntax here (%%l = lastname, %%f = firstname, %%u = username). See help for details and examples.';
 $string['restrictbydefault'] = 'Restrict modules by default';
 $string['restrictmodulesfor'] = 'Restrict modules for';

lang/en_utf8/moodle.php

@@ -1249,6 +1249,8 @@
 $string['renamefileto'] = 'Rename <b>$a</b> to';
 $string['report'] = 'Report';
 $string['reports'] = 'Reports';
+$string['repositories'] = 'Repositories';
+$string['repositoriesmanage'] = 'Manage Repositories';
 $string['requestcourse'] = 'Request a course';
 $string['requestedby'] = 'Requested by';
 $string['requestreason'] = 'Reason for course request';

lang/en_utf8/repositories.php

@@ -0,0 +1,2 @@
+<?php //$Id$
+$string['activaterep'] = 'Active repositories';