Issue #1881096 by mradcliffe, xjm, EclipseGc: Fixed Regression: Site broken when disabling module without removing block instances.
webchick
parent
97c3ee2be9
commit
55d72f73be
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@ -5,6 +5,8 @@
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* Controls the visual building blocks a page is constructed with.
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*/
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use Drupal\Component\Plugin\Exception\PluginException;
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/**
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* Denotes that a block is not enabled in any region and should not be shown.
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*/
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@ -361,7 +363,11 @@ function _block_rehash($theme = NULL) {
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$block_configs = config_get_storage_names_with_prefix('plugin.core.block.' . $theme);
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$regions = system_region_list($theme);
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foreach ($block_configs as $config) {
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$blocks[$config] = block_load($config);
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// Only list valid block instances.
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if (!$block = block_load($config)) {
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continue;
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}
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$blocks[$config] = $block;
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$config = config($config);
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$region = $config->get('region');
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$status = $config->get('status');
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@ -472,11 +478,25 @@ function block_list($region) {
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*
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* @return
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* A block object.
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*
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* @todo Add block_load_multiple() and make this function a single-value wrapper.
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*/
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function block_load($plugin_id, array $conf = array()) {
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$manager = drupal_container()->get('plugin.manager.block');
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if (!$block = $manager->getInstance(array('config' => $plugin_id))) {
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$block = $manager->createInstance($plugin_id, $conf);
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// If the block instance does not exist, try to create it.
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try {
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$block = $manager->createInstance($plugin_id, $conf);
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}
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catch (PluginException $e) {
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$config = config($plugin_id)->get();
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// Ignore blocks belonging to disabled modules, but re-throw valid
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// exceptions when the module is enabled and the plugin is misconfigured.
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if (empty($config['module']) || module_exists($config['module'])) {
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throw $e;
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}
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return FALSE;
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}
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}
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return $block;
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}
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@ -486,6 +506,8 @@ function block_load($plugin_id, array $conf = array()) {
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*
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* @return
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* An array of blocks grouped by region.
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*
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* @todo Remove this function, and replace it with a block_load_multiple().
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*/
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function _block_load_blocks() {
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global $theme;
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@ -493,9 +515,10 @@ function _block_load_blocks() {
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$instances = config_get_storage_names_with_prefix('plugin.core.block.' . $theme);
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$manager = drupal_container()->get('plugin.manager.block');
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foreach ($instances as $plugin_id) {
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$block = $manager->getInstance(array('config' => $plugin_id));
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$config = $block->getConfig();
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$blocks[$config['region']]["$plugin_id"] = $block;
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if ($block = block_load($plugin_id)) {
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$config = $block->getConfig();
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$blocks[$config['region']]["$plugin_id"] = $block;
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}
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}
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return $blocks;
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}
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@ -379,4 +379,101 @@ class BlockTest extends WebTestBase {
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$config = $instance->getConfig();
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$this->assertEqual($config['cache'], DRUPAL_NO_CACHE, "Test block's database entry updated to DRUPAL_NO_CACHE.");
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}
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/**
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* Tests blocks belonging to disabled modules.
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*/
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function testBlockModuleDisable() {
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module_enable(array('block_test'));
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$this->assertTrue(module_exists('block_test'), 'Test block module enabled.');
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// Clear the block cache to load the block_test module's block definitions.
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$manager = $this->container->get('plugin.manager.block');
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$manager->clearCachedDefinitions();
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// Add test blocks in different regions and confirm they are displayed.
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$blocks = array();
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$regions = array('sidebar_first', 'content', 'footer');
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foreach ($regions as $region) {
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$blocks[$region] = $this->drupalPlaceBlock('test_cache', array('region' => $region));
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}
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$this->drupalGet('');
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foreach ($regions as $region) {
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$this->assertText($blocks[$region]['subject']);
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}
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// Disable the block test module and refresh the definitions cache.
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module_disable(array('block_test'), FALSE);
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$this->assertFalse(module_exists('block_test'), 'Test block module disabled.');
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$manager->clearCachedDefinitions();
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// Ensure that the block administration page still functions as expected.
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$this->drupalGet('admin/structure/block');
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$this->assertResponse(200);
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// A 200 response is possible with a fatal error, so check the title too.
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$this->assertTitle(t('Blocks | Drupal'));
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// Ensure that the disabled module's block instance is not listed.
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foreach ($regions as $region) {
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$this->assertNoText($blocks[$region]['subject']);
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}
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// Ensure that the disabled module's block plugin is no longer available.
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$this->drupalGet('admin/structure/block/list/block_plugin_ui:' . variable_get('theme_default', 'stark') . '/add');
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$this->assertNoText(t('Test block caching'));
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// Confirm that the block is no longer displayed on the front page.
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$this->drupalGet('');
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$this->assertResponse(200);
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foreach ($regions as $region) {
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$this->assertNoText($blocks[$region]['subject']);
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}
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// Confirm that a different block instance can still be enabled by
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// submitting the block library form.
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// Emulate a POST submission rather than using drupalPlaceBlock() to ensure
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// that the form still functions as expected.
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$edit = array(
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'title' => $this->randomName(8),
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'machine_name' => $this->randomName(8),
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'region' => 'sidebar_first',
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);
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$this->drupalPost('admin/structure/block/manage/system_powered_by_block/stark', $edit, t('Save block'));
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$this->assertText(t('The block configuration has been saved.'));
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$this->assertText($edit['title']);
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// Update the weight of a block.
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$edit = array('blocks[0][weight]' => -1);
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$this->drupalPost('admin/structure/block', $edit, t('Save blocks'));
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$this->assertText(t('The block settings have been updated.'));
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// Re-enable the module and refresh the definitions cache.
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module_enable(array('block_test'), FALSE);
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$this->assertTrue(module_exists('block_test'), 'Test block module re-enabled.');
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$manager->clearCachedDefinitions();
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// Reload the admin page and confirm the block can again be configured.
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$this->drupalGet('admin/structure/block');
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foreach ($regions as $region) {
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$this->assertLinkByHref(url('admin/structure/block/manage/' . $blocks[$region]['config_id'] . '/stark/config'));
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}
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// Confirm that the blocks are again displayed on the front page in the
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// correct regions.
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$this->drupalGet('');
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foreach ($regions as $region) {
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// @todo Use a proper method for this.
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$name_pieces = explode('.', $blocks[$region]['config_id']);
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$machine_name = array_pop($name_pieces);
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$xpath = $this->buildXPathQuery('//div[@class=:region-class]//div[@id=:block-id]/*', array(
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':region-class' => 'region region-' . drupal_html_class($region),
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':block-id' => 'block-' . strtr(strtolower($machine_name), '-', '_'),
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));
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$this->assertFieldByXPath($xpath, NULL, format_string('Block %name found in the %region region.', array(
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'%name' => $blocks[$region]['subject'],
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'%region' => $region,
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)));
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}
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}
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}
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