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MDL-39148 Non-installed plugins cannot be uninstalled

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If the plugin has been only deployed to the disk without installing into
the database, do not allow going through the uninstallation procedure.
Not only it does not have much sense. But it can also lead to some
tricky situation due to dependencies. Better to block it and wait till
the plugin is either fully installed or removed from the disk.
This commit is contained in:
David Mudrák 2013-04-19 11:24:43 +02:00
parent 3a8c4380c0
commit badf464792
3 changed files with 23 additions and 2 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

6
lib/pluginlib.php
View File

@ -948,6 +948,12 @@ class plugin_manager {
return false;
}
if ($pluginfo->get_status() === plugin_manager::PLUGIN_STATUS_NEW) {
// The plugin is not installed. It should be either installed or removed from the disk.
// Relying on this temporary state may be tricky.
return false;
}
if (is_null($pluginfo->get_uninstall_url())) {
// Backwards compatibility.
debugging('plugininfo_base subclasses should use is_uninstall_allowed() instead of returning null in get_uninstall_url()',

5
lib/tests/fixtures/mockplugins/mod/new/version.php vendored Normal file
View File

@ -0,0 +1,5 @@
<?php
$module->version = 2013041900;
$module->requires = 2012010100;
$module->component = 'mod_new';

14
lib/tests/pluginlib_test.php
View File

@ -53,11 +53,12 @@ class plugin_manager_test extends advanced_testcase {
$pluginman = testable_plugin_manager::instance();
$mods = $pluginman->get_plugins_of_type('mod');
$this->assertEquals('array', gettype($mods));
$this->assertEquals(4, count($mods));
$this->assertEquals(5, count($mods));
$this->assertTrue($mods['foo'] instanceof testable_plugininfo_mod);
$this->assertTrue($mods['bar'] instanceof testable_plugininfo_mod);
$this->assertTrue($mods['baz'] instanceof testable_plugininfo_mod);
$this->assertTrue($mods['qux'] instanceof testable_plugininfo_mod);
$this->assertTrue($mods['new'] instanceof testable_plugininfo_mod);
$foolishes = $pluginman->get_plugins_of_type('foolish');
$this->assertEquals(2, count($foolishes));
$this->assertTrue($foolishes['frog'] instanceof testable_pluginfo_foolish);
@ -79,11 +80,13 @@ class plugin_manager_test extends advanced_testcase {
$this->assertTrue(isset($plugins['mod']['foo']));
$this->assertTrue(isset($plugins['mod']['bar']));
$this->assertTrue(isset($plugins['mod']['baz']));
$this->assertTrue(isset($plugins['mod']['new']));
$this->assertTrue(isset($plugins['foolish']['frog']));
$this->assertTrue(isset($plugins['foolish']['hippo']));
$this->assertTrue($plugins['mod']['foo'] instanceof testable_plugininfo_mod);
$this->assertTrue($plugins['mod']['bar'] instanceof testable_plugininfo_mod);
$this->assertTrue($plugins['mod']['baz'] instanceof testable_plugininfo_mod);
$this->assertTrue($plugins['mod']['new'] instanceof testable_plugininfo_mod);
$this->assertTrue($plugins['foolish']['frog'] instanceof testable_pluginfo_foolish);
$this->assertTrue($plugins['foolish']['hippo'] instanceof testable_pluginfo_foolish);
$this->assertTrue($plugins['bazmeg']['one'] instanceof testable_pluginfo_bazmeg);
@ -217,6 +220,7 @@ class plugin_manager_test extends advanced_testcase {
$pluginman = testable_plugin_manager::instance();
$plugins = $pluginman->get_plugins();
$this->assertEquals(plugin_manager::PLUGIN_STATUS_UPGRADE, $plugins['mod']['foo']->get_status());
$this->assertEquals(plugin_manager::PLUGIN_STATUS_NEW, $plugins['mod']['new']->get_status());
$this->assertEquals(plugin_manager::PLUGIN_STATUS_NEW, $plugins['bazmeg']['one']->get_status());
$this->assertEquals(plugin_manager::PLUGIN_STATUS_UPTODATE, $plugins['quxcat']['one']->get_status());
}
@ -240,6 +244,7 @@ class plugin_manager_test extends advanced_testcase {
$this->assertFalse($pluginman->can_uninstall_plugin('mod_qux')); // Because even if no plugin (not even subplugins) declare
// dependency on it, but its subplugin can't be uninstalled.
$this->assertFalse($pluginman->can_uninstall_plugin('mod_baz')); // Because it's subplugin bazmeg_one is required by quxcat_one.
$this->assertFalse($pluginman->can_uninstall_plugin('mod_new')); // Because it is not installed.
$this->assertFalse($pluginman->can_uninstall_plugin('quxcat_one')); // Because of testable_pluginfo_quxcat::is_uninstall_allowed().
$this->assertFalse($pluginman->can_uninstall_plugin('foolish_frog')); // Because foolish_hippo requires it.
}
@ -546,7 +551,9 @@ class testable_plugininfo_mod extends plugininfo_mod {
}
public function load_db_version() {
$this->versiondb = 2012022900;
if ($this->component !== 'mod_new') {
$this->versiondb = 2012022900;
}
}
public function is_uninstall_allowed() {
@ -660,6 +667,8 @@ class testable_plugin_manager extends plugin_manager {
$dirroot.'/mod/baz', 'testable_plugininfo_mod'),
'qux' => plugininfo_default_factory::make('mod', $dirroot.'/qux', 'qux',
$dirroot.'/mod/qux', 'testable_plugininfo_mod'),
'new' => plugininfo_default_factory::make('mod', $dirroot.'/new', 'new',
$dirroot.'/mod/new', 'testable_plugininfo_mod'),
),
'foolish' => array(
'frog' => plugininfo_default_factory::make('foolish', $dirroot.'/mod/foo/lish', 'frog',
@ -681,6 +690,7 @@ class testable_plugin_manager extends plugin_manager {
$this->pluginsinfo['mod']['foo']->check_available_updates($checker);
$this->pluginsinfo['mod']['bar']->check_available_updates($checker);
$this->pluginsinfo['mod']['baz']->check_available_updates($checker);
$this->pluginsinfo['mod']['new']->check_available_updates($checker);
$this->pluginsinfo['bazmeg']['one']->check_available_updates($checker);
$this->pluginsinfo['quxcat']['one']->check_available_updates($checker);