Search for exists

Title	Object type	File name	Summary
ActionFormBase::exists	function	core/modules/action/src/Form/ActionFormBase.php	Determines if the action already exists.
AliasStorage::aliasExists	function	core/lib/Drupal/Core/Path/AliasStorage.php	Checks if alias already exists.
AliasStorage::languageAliasExists	function	core/lib/Drupal/Core/Path/AliasStorage.php	Checks if there are any aliases with language defined.
AliasStorageInterface::aliasExists	function	core/lib/Drupal/Core/Path/AliasStorageInterface.php	Checks if alias already exists.
AliasStorageInterface::languageAliasExists	function	core/lib/Drupal/Core/Path/AliasStorageInterface.php	Checks if there are any aliases with language defined.
Attribute::offsetExists	function	core/lib/Drupal/Core/Template/Attribute.php
AttributeArray::offsetExists	function	core/lib/Drupal/Core/Template/AttributeArray.php
AttributeHelper::attributeExists	function	core/lib/Drupal/Core/Template/AttributeHelper.php	Checks if the given attribute collection has an attribute.
AttributeHelperTest::providerTestAttributeExists	function	core/tests/Drupal/Tests/Core/Template/AttributeHelperTest.php	Provides tests data for testAttributeExists
AttributeHelperTest::testAttributeExists	function	core/tests/Drupal/Tests/Core/Template/AttributeHelperTest.php	@covers ::attributeExists @dataProvider providerTestAttributeExists
BatchBuilderTest::testQueueExists	function	core/tests/Drupal/Tests/Core/Batch/BatchBuilderTest.php	Tests queue class exists.
BatchStorage::ensureTableExists	function	core/lib/Drupal/Core/Batch/BatchStorage.php	Check if the table exists and create it if not.
BigPipeTest::assertBigPipeNoJsCookieExists	function	core/modules/big_pipe/tests/src/Functional/BigPipeTest.php	Asserts whether a BigPipe no-JS cookie exists or not.
BigPipeTest::assertCookieExists	function	core/modules/big_pipe/tests/src/Functional/BigPipeTest.php	Asserts whether a cookie exists on the client or not.
BigPipeTest::assertSessionCookieExists	function	core/modules/big_pipe/tests/src/Functional/BigPipeTest.php	Asserts whether a session cookie exists or not.
BlockRegionTest::testTransformSameThemeRegionExists	function	core/modules/block/tests/src/Unit/Plugin/migrate/process/BlockRegionTest.php	If the source and destination themes are identical, the region should only be passed through if it actually exists in the destination theme.
BlockRegionTest::testTransformSameThemeRegionNotExists	function	core/modules/block/tests/src/Unit/Plugin/migrate/process/BlockRegionTest.php	If the source and destination themes are identical, the region should be changed to 'content' if it doesn't exist in the destination theme.
BreakpointManager::providerExists	function	core/modules/breakpoint/src/BreakpointManager.php	Determines if the provider of a definition exists.
BrowserTestBaseTest::testInvalidLinkExistsExact	function	core/tests/Drupal/FunctionalTests/BrowserTestBaseTest.php	Tests linkExistsExact() functionality fail.
BrowserTestBaseTest::testInvalidLinkNotExistsExact	function	core/tests/Drupal/FunctionalTests/BrowserTestBaseTest.php	Tests linkNotExistsExact() functionality fail.
BrowserTestBaseTest::testLinkExistsExact	function	core/tests/Drupal/FunctionalTests/BrowserTestBaseTest.php	Tests linkExistsExact() functionality.
BrowserTestBaseTest::testLinkNotExistsExact	function	core/tests/Drupal/FunctionalTests/BrowserTestBaseTest.php	Tests linkNotExistsExact() functionality.
CachedStorage::exists	function	core/lib/Drupal/Core/Config/CachedStorage.php	Returns whether a configuration object exists.
CacheTestBase::assertCacheExists	function	core/modules/system/src/Tests/Cache/CacheTestBase.php	Asserts that a cache entry exists.
CacheTestBase::assertCacheExists	function	core/modules/system/tests/src/Functional/Cache/CacheTestBase.php	Asserts that a cache entry exists.
CacheTestBase::checkCacheExists	function	core/modules/system/src/Tests/Cache/CacheTestBase.php	Checks whether or not a cache entry exists.
CacheTestBase::checkCacheExists	function	core/modules/system/tests/src/Functional/Cache/CacheTestBase.php	Checks whether or not a cache entry exists.
cache_context.session.exists	service	core/core.services.yml	Drupal\Core\Cache\Context\SessionExistsCacheContext
CKEditorIntegrationTest::assertContextMenuItemExists	function	core/modules/media/tests/src/FunctionalJavascript/CKEditorIntegrationTest.php	Asserts that a context menu item exists by aria-label attribute.
CKEditorIntegrationTest::assertContextMenuItemNotExists	function	core/modules/media/tests/src/FunctionalJavascript/CKEditorIntegrationTest.php	Asserts that a context menu item does not exist by aria-label attribute.
CommentFieldItemList::offsetExists	function	core/modules/comment/src/CommentFieldItemList.php
CommentNonNodeTest::commentExists	function	core/modules/comment/tests/src/Functional/CommentNonNodeTest.php	Checks current page for specified comment.
CommentTestBase::commentExists	function	core/modules/comment/src/Tests/CommentTestBase.php	Checks current page for specified comment.
CommentTestBase::commentExists	function	core/modules/comment/tests/src/Functional/CommentTestBase.php	Checks current page for specified comment.
ComputedItemListTrait::offsetExists	function	core/lib/Drupal/Core/TypedData/ComputedItemListTrait.php
Condition::exists	function	core/lib/Drupal/Core/Entity/Query/Null/Condition.php	Queries for the existence of a field.
Condition::exists	function	core/lib/Drupal/Core/Entity/Query/Sql/Condition.php	Queries for the existence of a field.
Condition::exists	function	core/lib/Drupal/Core/Database/Query/Condition.php	Sets a condition that the specified subquery returns values.
Condition::exists	function	core/lib/Drupal/Core/Config/Entity/Query/Condition.php	Queries for the existence of a field.
Condition::notExists	function	core/lib/Drupal/Core/Database/Query/Condition.php	Sets a condition that the specified subquery returns no values.
Condition::notExists	function	core/lib/Drupal/Core/Entity/Query/Null/Condition.php	Queries for the nonexistence of a field.
Condition::notExists	function	core/lib/Drupal/Core/Entity/Query/Sql/Condition.php	Queries for the nonexistence of a field.
Condition::notExists	function	core/lib/Drupal/Core/Config/Entity/Query/Condition.php	Queries for the nonexistence of a field.
ConditionAggregate::exists	function	core/lib/Drupal/Core/Entity/Query/Sql/ConditionAggregate.php	Queries for the existence of a field.
ConditionAggregate::notExists	function	core/lib/Drupal/Core/Entity/Query/Sql/ConditionAggregate.php	Queries for the nonexistence of a field.
ConditionAggregateInterface::exists	function	core/lib/Drupal/Core/Entity/Query/ConditionAggregateInterface.php	Queries for the existence of a field.
ConditionAggregateInterface::notExists	function	core/lib/Drupal/Core/Entity/Query/ConditionAggregateInterface.php	Queries for the nonexistence of a field.
ConditionInterface::exists	function	core/lib/Drupal/Core/Database/Query/ConditionInterface.php	Sets a condition that the specified subquery returns values.
ConditionInterface::exists	function	core/lib/Drupal/Core/Entity/Query/ConditionInterface.php	Queries for the existence of a field.
ConditionInterface::notExists	function	core/lib/Drupal/Core/Database/Query/ConditionInterface.php	Sets a condition that the specified subquery returns no values.

Buggy or inaccurate documentation? Please file an issue. Need support? Need help programming? Connect with the Drupal community.