mirror of
https://github.com/moodle/moodle.git
synced 2025-01-19 06:18:28 +01:00
285 lines
12 KiB
PHP
285 lines
12 KiB
PHP
<?php
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// Allows the admin to configure blocks (hide/show, delete and configure)
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require_once('../config.php');
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require_once($CFG->libdir.'/adminlib.php');
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require_once($CFG->libdir.'/tablelib.php');
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admin_externalpage_setup('manageblocks');
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$confirm = optional_param('confirm', 0, PARAM_BOOL);
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$hide = optional_param('hide', 0, PARAM_INT);
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$show = optional_param('show', 0, PARAM_INT);
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$delete = optional_param('delete', 0, PARAM_INT);
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$unprotect = optional_param('unprotect', 0, PARAM_INT);
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$protect = optional_param('protect', 0, PARAM_INT);
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/// Print headings
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$strmanageblocks = get_string('manageblocks');
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$strdelete = get_string('delete');
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$strversion = get_string('version');
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$strhide = get_string('hide');
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$strshow = get_string('show');
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$strsettings = get_string('settings');
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$strcourses = get_string('blockinstances', 'admin');
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$strname = get_string('name');
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$strshowblockcourse = get_string('showblockcourse');
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$strprotecthdr = get_string('blockprotect', 'admin'). $OUTPUT->help_icon('blockprotect','admin');
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$strprotect = get_string('blockprotect', 'admin');
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$strunprotect = get_string('blockunprotect', 'admin');
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/// If data submitted, then process and store.
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if (!empty($hide) && confirm_sesskey()) {
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if (!$block = $DB->get_record('block', array('id'=>$hide))) {
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print_error('blockdoesnotexist', 'error');
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}
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$DB->set_field('block', 'visible', '0', array('id'=>$block->id)); // Hide block
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admin_get_root(true, false); // settings not required - only pages
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}
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if (!empty($show) && confirm_sesskey() ) {
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if (!$block = $DB->get_record('block', array('id'=>$show))) {
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print_error('blockdoesnotexist', 'error');
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}
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$DB->set_field('block', 'visible', '1', array('id'=>$block->id)); // Show block
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admin_get_root(true, false); // settings not required - only pages
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}
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if (!isset($CFG->undeletableblocktypes) || (!is_array($CFG->undeletableblocktypes) && !is_string($CFG->undeletableblocktypes))) {
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$undeletableblocktypes = array('navigation', 'settings');
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} else if (is_string($CFG->undeletableblocktypes)) {
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$undeletableblocktypes = explode(',', $CFG->undeletableblocktypes);
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} else {
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$undeletableblocktypes = $CFG->undeletableblocktypes;
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}
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if (!empty($protect) && confirm_sesskey()) {
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if (!$block = $DB->get_record('block', array('id'=>$protect))) {
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print_error('blockdoesnotexist', 'error');
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}
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if (!in_array($block->name, $undeletableblocktypes)) {
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$undeletableblocktypes[] = $block->name;
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set_config('undeletableblocktypes', implode(',', $undeletableblocktypes));
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}
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admin_get_root(true, false); // settings not required - only pages
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}
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if (!empty($unprotect) && confirm_sesskey()) {
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if (!$block = $DB->get_record('block', array('id'=>$unprotect))) {
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print_error('blockdoesnotexist', 'error');
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}
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if (in_array($block->name, $undeletableblocktypes)) {
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$undeletableblocktypes = array_diff($undeletableblocktypes, array($block->name));
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set_config('undeletableblocktypes', implode(',', $undeletableblocktypes));
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}
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admin_get_root(true, false); // settings not required - only pages
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}
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if (!empty($delete) && confirm_sesskey()) {
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echo $OUTPUT->header();
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echo $OUTPUT->heading($strmanageblocks);
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if (!$block = blocks_get_record($delete)) {
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print_error('blockdoesnotexist', 'error');
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}
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if (get_string_manager()->string_exists('pluginname', "block_$block->name")) {
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$strblockname = get_string('pluginname', "block_$block->name");
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} else {
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$strblockname = $block->name;
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}
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if (!$confirm) {
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echo $OUTPUT->confirm(get_string('blockdeleteconfirm', '', $strblockname), 'blocks.php?delete='.$block->id.'&confirm=1', 'blocks.php');
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echo $OUTPUT->footer();
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exit;
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} else {
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// Inform block it's about to be deleted
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if (file_exists("$CFG->dirroot/blocks/$block->name/block_$block->name.php")) {
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$blockobject = block_instance($block->name);
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if ($blockobject) {
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$blockobject->before_delete(); //only if we can create instance, block might have been already removed
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}
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}
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// First delete instances and then block
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$instances = $DB->get_records('block_instances', array('blockname' => $block->name));
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if(!empty($instances)) {
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foreach($instances as $instance) {
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blocks_delete_instance($instance);
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}
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}
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// Delete block
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$DB->delete_records('block', array('id'=>$block->id));
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drop_plugin_tables($block->name, "$CFG->dirroot/blocks/$block->name/db/install.xml", false); // old obsoleted table names
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drop_plugin_tables('block_'.$block->name, "$CFG->dirroot/blocks/$block->name/db/install.xml", false);
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// Delete the capabilities that were defined by this block
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capabilities_cleanup('block/'.$block->name);
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// Remove event handlers and dequeue pending events
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events_uninstall('block/'.$block->name);
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$a->block = $strblockname;
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$a->directory = $CFG->dirroot.'/blocks/'.$block->name;
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notice(get_string('blockdeletefiles', '', $a), 'blocks.php');
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}
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}
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echo $OUTPUT->header();
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echo $OUTPUT->heading($strmanageblocks);
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/// Main display starts here
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/// Get and sort the existing blocks
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if (!$blocks = $DB->get_records('block', array(), 'name ASC')) {
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print_error('noblocks', 'error'); // Should never happen
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}
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$incompatible = array();
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/// Print the table of all blocks
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$table = new flexible_table('admin-blocks-compatible');
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$table->define_columns(array('name', 'instances', 'version', 'hideshow', 'undeletable', 'delete', 'settings'));
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$table->define_headers(array($strname, $strcourses, $strversion, $strhide.'/'.$strshow, $strprotecthdr, $strdelete, $strsettings));
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$table->define_baseurl($CFG->wwwroot.'/'.$CFG->admin.'/blocks.php');
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$table->set_attribute('class', 'compatibleblockstable blockstable generaltable');
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$table->setup();
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$tablerows = array();
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foreach ($blocks as $blockid=>$block) {
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$blockname = $block->name;
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if (!file_exists("$CFG->dirroot/blocks/$blockname/block_$blockname.php")) {
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$blockobject = false;
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$strblockname = '<span class="notifyproblem">'.$blockname.' ('.get_string('missingfromdisk').')</span>';
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$plugin = new stdClass();
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$plugin->version = $block->version;
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} else {
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$plugin = new stdClass();
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$plugin->version = '???';
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if (file_exists("$CFG->dirroot/blocks/$blockname/version.php")) {
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include("$CFG->dirroot/blocks/$blockname/version.php");
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}
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if (!$blockobject = block_instance($block->name)) {
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$incompatible[] = $block;
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continue;
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}
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$strblockname = get_string('pluginname', 'block_'.$blockname);
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}
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$delete = '<a href="blocks.php?delete='.$blockid.'&sesskey='.sesskey().'">'.$strdelete.'</a>';
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$settings = ''; // By default, no configuration
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if ($blockobject and $blockobject->has_config()) {
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$blocksettings = admin_get_root()->locate('blocksetting' . $block->name);
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if ($blocksettings instanceof admin_externalpage) {
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$settings = '<a href="' . $blocksettings->url . '">' . get_string('settings') . '</a>';
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} else if ($blocksettings instanceof admin_settingpage) {
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$settings = '<a href="'.$CFG->wwwroot.'/'.$CFG->admin.'/settings.php?section=blocksetting'.$block->name.'">'.$strsettings.'</a>';
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} else {
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$settings = '<a href="block.php?block='.$blockid.'">'.$strsettings.'</a>';
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}
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}
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// MDL-11167, blocks can be placed on mymoodle, or the blogs page
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// and it should not show up on course search page
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$totalcount = $DB->count_records('block_instances', array('blockname'=>$blockname));
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$count = $DB->count_records('block_instances', array('blockname'=>$blockname, 'pagetypepattern'=>'course-view-*'));
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if ($count>0) {
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$blocklist = "<a href=\"{$CFG->wwwroot}/course/search.php?blocklist=$blockid&sesskey=".sesskey()."\" ";
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$blocklist .= "title=\"$strshowblockcourse\" >$totalcount</a>";
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}
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else {
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$blocklist = "$totalcount";
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}
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$class = ''; // Nothing fancy, by default
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if (!$blockobject) {
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// ignore
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$visible = '';
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} else if ($blocks[$blockid]->visible) {
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$visible = '<a href="blocks.php?hide='.$blockid.'&sesskey='.sesskey().'" title="'.$strhide.'">'.
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'<img src="'.$OUTPUT->pix_url('i/hide') . '" class="icon" alt="'.$strhide.'" /></a>';
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} else {
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$visible = '<a href="blocks.php?show='.$blockid.'&sesskey='.sesskey().'" title="'.$strshow.'">'.
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'<img src="'.$OUTPUT->pix_url('i/show') . '" class="icon" alt="'.$strshow.'" /></a>';
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$class = ' class="dimmed_text"'; // Leading space required!
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}
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if ($block->version == $plugin->version) {
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$version = $block->version;
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} else {
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$version = "$block->version ($plugin->version)";
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}
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if (!$blockobject) {
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// ignore
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$undeletable = '';
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} else if (in_array($blockname, $undeletableblocktypes)) {
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$undeletable = '<a href="blocks.php?unprotect='.$blockid.'&sesskey='.sesskey().'" title="'.$strunprotect.'">'.
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'<img src="'.$OUTPUT->pix_url('t/unlock') . '" class="icon" alt="'.$strunprotect.'" /></a>';
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} else {
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$undeletable = '<a href="blocks.php?protect='.$blockid.'&sesskey='.sesskey().'" title="'.$strprotect.'">'.
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'<img src="'.$OUTPUT->pix_url('t/unlock_gray') . '" class="icon" alt="'.$strprotect.'" /></a>';
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}
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$row = array(
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'<span'.$class.'>'.$strblockname.'</span>',
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$blocklist,
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'<span'.$class.'>'.$version.'</span>',
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$visible,
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$undeletable,
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$delete,
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$settings
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);
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$tablerows[] = array(strip_tags($strblockname), $row); // first element will be used for sorting
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}
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collatorlib::asort($tablerows);
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foreach ($tablerows as $row) {
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$table->add_data($row[1]);
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}
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$table->print_html();
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if (!empty($incompatible)) {
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echo $OUTPUT->heading(get_string('incompatibleblocks', 'blockstable', 'admin'));
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$table = new flexible_table('admin-blocks-incompatible');
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$table->define_columns(array('block', 'delete'));
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$table->define_headers(array($strname, $strdelete));
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$table->define_baseurl($CFG->wwwroot.'/'.$CFG->admin.'/blocks.php');
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$table->set_attribute('class', 'incompatibleblockstable generaltable');
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$table->setup();
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foreach ($incompatible as $block) {
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$table->add_data(array(
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$block->name,
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'<a href="blocks.php?delete='.$block->id.'&sesskey='.sesskey().'">'.$strdelete.'</a>',
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));
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}
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$table->print_html();
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}
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echo $OUTPUT->footer();
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