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Title Object type File name Summary
DatabaseStorage::ensureTableExists function core/lib/Drupal/Core/KeyValueStore/DatabaseStorage.php Check if the table exists and create it if not.
DatabaseStorage::ensureTableExists function core/lib/Drupal/Core/Config/DatabaseStorage.php Check if the config table exists and create it if not.
DatabaseStorage::exists function core/lib/Drupal/Core/Config/DatabaseStorage.php Returns whether a configuration object exists.
DatabaseStorage::setIfNotExists function core/lib/Drupal/Core/KeyValueStore/DatabaseStorage.php Saves a value for a given key if it does not exist yet.
DatabaseStorageExpirable::doSetWithExpireIfNotExists function core/lib/Drupal/Core/KeyValueStore/DatabaseStorageExpirable.php Sets a value for a given key with a time to live if it does not yet exist.
DatabaseStorageExpirable::setWithExpireIfNotExists function core/lib/Drupal/Core/KeyValueStore/DatabaseStorageExpirable.php Sets a value for a given key with a time to live if it does not yet exist.
DataDefinition::offsetExists function core/lib/Drupal/Core/TypedData/DataDefinition.php This is for BC support only.
@todo: Remove in https://www.drupal.org/node/1928868.
DateFormatFormBase::exists function core/modules/system/src/Form/DateFormatFormBase.php Checks for an existing date format.
DefaultPluginManager::providerExists function core/lib/Drupal/Core/Plugin/DefaultPluginManager.php Determines if the provider of a definition exists.
DefaultPluginManagerTest::testProviderExists function core/tests/Drupal/Tests/Core/Plugin/DefaultPluginManagerTest.php @covers ::findDefinitions[[api-linebreak]]
@covers ::extractProviderFromDefinition[[api-linebreak]]
DeprecatedArray::offsetExists function core/lib/Drupal/Component/Utility/DeprecatedArray.php #[\ReturnTypeWillChange]
DocParser::$classExists property core/lib/Drupal/Component/Annotation/Doctrine/DocParser.php This hashmap is used internally to cache results of class_exists()
look-ups.
DocParser::classExists function core/lib/Drupal/Component/Annotation/Doctrine/DocParser.php Attempts to check if a class exists or not. This never goes through the PHP autoloading mechanism
but uses the {@link AnnotationRegistry} to load classes.
Drupal6SqlBaseTest::testDrupal6ModuleExists function core/modules/migrate_drupal/tests/src/Unit/source/d6/Drupal6SqlBaseTest.php Tests for Drupal6SqlBase::moduleExists().
DrupalSqlBase::moduleExists function core/modules/migrate_drupal/src/Plugin/migrate/source/DrupalSqlBase.php Checks if a given module is enabled in the source Drupal database.
DrupalStandardsListenerTrait::classExists function core/tests/Drupal/Tests/Listeners/DrupalStandardsListenerTrait.php Helper method to check if a string names a valid class or trait.
EntityDisplayModeFormBase::exists function core/modules/field_ui/src/Form/EntityDisplayModeFormBase.php Determines if the display mode already exists.
EntityExists class core/modules/migrate/src/Plugin/migrate/process/EntityExists.php This plugin checks if a given entity exists.
EntityExists.php file core/modules/migrate/src/Plugin/migrate/process/EntityExists.php
EntityExists::$storage property core/modules/migrate/src/Plugin/migrate/process/EntityExists.php The entity storage.
EntityExists::create function core/modules/migrate/src/Plugin/migrate/process/EntityExists.php Creates an instance of the plugin.
EntityExists::transform function core/modules/migrate/src/Plugin/migrate/process/EntityExists.php Performs the associated process.
EntityExists::__construct function core/modules/migrate/src/Plugin/migrate/process/EntityExists.php EntityExists constructor.
EntityExistsTest class core/modules/migrate/tests/src/Kernel/Plugin/EntityExistsTest.php Tests the EntityExists process plugin.
EntityExistsTest.php file core/modules/migrate/tests/src/Kernel/Plugin/EntityExistsTest.php
EntityExistsTest::$modules property core/modules/migrate/tests/src/Kernel/Plugin/EntityExistsTest.php Modules to enable.
EntityExistsTest::setUp function core/modules/migrate/tests/src/Kernel/Plugin/EntityExistsTest.php
EntityExistsTest::testEntityExists function core/modules/migrate/tests/src/Kernel/Plugin/EntityExistsTest.php Tests the EntityExists plugin.
EntityResource::entityExists function core/modules/jsonapi/src/Controller/EntityResource.php Checks if the given entity exists.
ExtensionList::exists function core/lib/Drupal/Core/Extension/ExtensionList.php Determines if an extension exists in the filesystem.
FieldStorageAddForm::fieldNameExists function core/modules/field_ui/src/Form/FieldStorageAddForm.php Checks if a field machine name is taken.
FileExistsException class core/lib/Drupal/Core/File/Exception/FileExistsException.php Exception thrown when a file unexpectedly exists.
FileExistsException.php file core/lib/Drupal/Core/File/Exception/FileExistsException.php
FileFieldTestBase::assertFileEntryExists function core/modules/file/tests/src/Functional/FileFieldTestBase.php Asserts that a file exists in the database.
FileFieldTestBase::assertFileEntryNotExists function core/modules/file/tests/src/Functional/FileFieldTestBase.php Asserts that a file does not exist in the database.
FileNotExistsException class core/lib/Drupal/Core/File/Exception/FileNotExistsException.php Exception thrown when a file is expected to exist but does not.
FileNotExistsException.php file core/lib/Drupal/Core/File/Exception/FileNotExistsException.php
FileReadOnlyStorage::exists function core/lib/Drupal/Component/PhpStorage/FileReadOnlyStorage.php Checks whether the PHP code exists in storage.
FileStorage::exists function core/lib/Drupal/Core/Config/FileStorage.php Returns whether a configuration object exists.
FileStorage::exists function core/lib/Drupal/Component/PhpStorage/FileStorage.php Checks whether the PHP code exists in storage.
FileSystemInterface::EXISTS_ERROR constant core/lib/Drupal/Core/File/FileSystemInterface.php Flag for dealing with existing files: Do nothing and return FALSE.
FileSystemInterface::EXISTS_RENAME constant core/lib/Drupal/Core/File/FileSystemInterface.php Flag for dealing with existing files: Appends number until name is unique.
FileSystemInterface::EXISTS_REPLACE constant core/lib/Drupal/Core/File/FileSystemInterface.php Flag for dealing with existing files: Replace the existing file.
FileSystemTest::testCopyFailureIfFileAlreadyExists function core/tests/Drupal/KernelTests/Core/File/FileSystemTest.php @covers ::copy[[api-linebreak]]
FileSystemTest::testEnsureFileExistsBeforeCopy function core/tests/Drupal/KernelTests/Core/File/FileSystemTest.php @covers ::copy[[api-linebreak]]
FilterFormatFormBase::exists function core/modules/filter/src/FilterFormatFormBase.php Determines if the format already exists.
GenerateThemeTest::assertThemeExists function core/tests/Drupal/Tests/Core/Command/GenerateThemeTest.php Asserts the theme exists. Returns the parsed *.info.yml file.
HelpTopicPluginManager::providerExists function core/modules/help_topics/src/HelpTopicPluginManager.php Determines if the provider of a definition exists.
HighWaterTest::assertNodeExists function core/modules/migrate/tests/src/Kernel/HighWaterTest.php Assert that node with given title exists.
HighWaterTest::nodeExists function core/modules/migrate/tests/src/Kernel/HighWaterTest.php Checks if node with given title exists.

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