Search for exists

Title	Object type	File name	Summary
MTimeProtectedFileStorage::exists	function	core/lib/Drupal/Component/PhpStorage/MTimeProtectedFileStorage.php	Checks whether the PHP code exists in storage.
NegotiatorBase::ensureVersionExists	function	core/modules/jsonapi/src/Revisions/NegotiatorBase.php	Helper method that ensures that a version exists.
NestedArray::keyExists	function	core/lib/Drupal/Component/Utility/NestedArray.php	Determines whether a nested array contains the requested keys.
NestedArrayTest::testKeyExists	function	core/tests/Drupal/Tests/Component/Utility/NestedArrayTest.php	Tests existence of array key.
NullStorage::exists	function	core/lib/Drupal/Core/Config/NullStorage.php	Returns whether a configuration object exists.
NullStorageExpirable::setIfNotExists	function	core/lib/Drupal/Core/KeyValueStore/NullStorageExpirable.php	Saves a value for a given key if it does not exist yet.
NullStorageExpirable::setWithExpireIfNotExists	function	core/lib/Drupal/Core/KeyValueStore/NullStorageExpirable.php	Sets a value for a given key with a time to live if it does not yet exist.
PathAliasTestTrait::assertPathAliasExists	function	core/tests/Drupal/Tests/Traits/Core/PathAliasTestTrait.php	Asserts that a path alias exists in the storage.
PathAliasTestTrait::assertPathAliasNotExists	function	core/tests/Drupal/Tests/Traits/Core/PathAliasTestTrait.php	Asserts that a path alias does not exist in the storage.
PhpStorageInterface::exists	function	core/lib/Drupal/Component/PhpStorage/PhpStorageInterface.php	Checks whether the PHP code exists in storage.
ProviderFilterDecorator::$providerExists	property	core/modules/migrate/src/Plugin/Discovery/ProviderFilterDecorator.php	A callable for testing if a provider exists.
Query::existsAggregate	function	core/lib/Drupal/Core/Entity/Query/Null/Query.php	Queries for the existence of a field.
Query::notExistsAggregate	function	core/lib/Drupal/Core/Entity/Query/Null/Query.php	Queries for the nonexistence of a field.
QueryAggregate::existsAggregate	function	core/lib/Drupal/Core/Entity/Query/Sql/QueryAggregate.php	Queries for the existence of a field.
QueryAggregate::notExistsAggregate	function	core/lib/Drupal/Core/Entity/Query/Sql/QueryAggregate.php	Queries for the nonexistence of a field.
QueryAggregateInterface::existsAggregate	function	core/lib/Drupal/Core/Entity/Query/QueryAggregateInterface.php	Queries for the existence of a field.
QueryAggregateInterface::notExistsAggregate	function	core/lib/Drupal/Core/Entity/Query/QueryAggregateInterface.php	Queries for the nonexistence of a field.
QueryBase::exists	function	core/lib/Drupal/Core/Entity/Query/QueryBase.php	Queries for a non-empty value on a field.
QueryBase::notExists	function	core/lib/Drupal/Core/Entity/Query/QueryBase.php	Queries for an empty field.
QueryConditionTrait::exists	function	core/lib/Drupal/Core/Database/Query/QueryConditionTrait.php
QueryConditionTrait::notExists	function	core/lib/Drupal/Core/Database/Query/QueryConditionTrait.php
QueryInterface::exists	function	core/lib/Drupal/Core/Entity/Query/QueryInterface.php	Queries for a non-empty value on a field.
QueryInterface::notExists	function	core/lib/Drupal/Core/Entity/Query/QueryInterface.php	Queries for an empty field.
ReadOnlyStorage::exists	function	core/lib/Drupal/Core/Config/ReadOnlyStorage.php	Returns whether a configuration object exists.
RegressionTest::testDBFieldExists	function	core/tests/Drupal/KernelTests/Core/Database/RegressionTest.php	Tests the \Drupal\Core\Database\Schema::fieldExists() method.
RegressionTest::testDBIndexExists	function	core/tests/Drupal/KernelTests/Core/Database/RegressionTest.php	Tests the Schema::indexExists() method.
RegressionTest::testDBTableExists	function	core/tests/Drupal/KernelTests/Core/Database/RegressionTest.php	Tests the Schema::tableExists() method.
Schema::constraintExists	function	core/lib/Drupal/Core/Database/Driver/pgsql/Schema.php	Helper function: check if a constraint (PK, FK, UK) exists.
Schema::fieldExists	function	core/lib/Drupal/Core/Database/Driver/sqlite/Schema.php	Check if a column exists in the given table.
Schema::fieldExists	function	core/lib/Drupal/Core/Database/Driver/mysql/Schema.php	Check if a column exists in the given table.
Schema::fieldExists	function	core/lib/Drupal/Core/Database/Driver/pgsql/Schema.php	Check if a column exists in the given table.
Schema::fieldExists	function	core/lib/Drupal/Core/Database/Schema.php	Check if a column exists in the given table.
Schema::indexExists	function	core/lib/Drupal/Core/Database/Driver/sqlite/Schema.php	Checks if an index exists in the given table.
Schema::indexExists	function	core/lib/Drupal/Core/Database/Driver/mysql/Schema.php	Checks if an index exists in the given table.
Schema::indexExists	function	core/lib/Drupal/Core/Database/Driver/pgsql/Schema.php	Checks if an index exists in the given table.
Schema::indexExists	function	core/lib/Drupal/Core/Database/Schema.php	Checks if an index exists in the given table.
Schema::tableExists	function	core/lib/Drupal/Core/Database/Driver/sqlite/Schema.php	Check if a table exists.
Schema::tableExists	function	core/lib/Drupal/Core/Database/Driver/mysql/Schema.php	Check if a table exists.
Schema::tableExists	function	core/lib/Drupal/Core/Database/Driver/pgsql/Schema.php	Check if a table exists.
Schema::tableExists	function	core/lib/Drupal/Core/Database/Schema.php	Check if a table exists.
SchemaObjectExistsException	class	core/lib/Drupal/Core/Database/SchemaObjectExistsException.php	Exception thrown if an object being created already exists.
SchemaObjectExistsException.php	file	core/lib/Drupal/Core/Database/SchemaObjectExistsException.php
SearchPageFormBase::exists	function	core/modules/search/src/Form/SearchPageFormBase.php	Determines if the search page entity already exists.
Select::havingExists	function	core/lib/Drupal/Core/Database/Query/Select.php	Sets a HAVING condition that the specified subquery returns values.
Select::havingNotExists	function	core/lib/Drupal/Core/Database/Query/Select.php	Sets a HAVING condition that the specified subquery returns no values.
SelectExtender::exists	function	core/lib/Drupal/Core/Database/Query/SelectExtender.php	Sets a condition that the specified subquery returns values.
SelectExtender::havingExists	function	core/lib/Drupal/Core/Database/Query/SelectExtender.php	Sets a HAVING condition that the specified subquery returns values.
SelectExtender::havingNotExists	function	core/lib/Drupal/Core/Database/Query/SelectExtender.php	Sets a HAVING condition that the specified subquery returns no values.
SelectExtender::notExists	function	core/lib/Drupal/Core/Database/Query/SelectExtender.php	Sets a condition that the specified subquery returns no values.
SelectInterface::havingExists	function	core/lib/Drupal/Core/Database/Query/SelectInterface.php	Sets a HAVING condition that the specified subquery returns values.

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