Module: Sequel

Extended by:
DateParseInputHandler, DateTimeParseToTime, EvalInspect, FiberConcurrency, NamedTimezones, SQL::Builders, SQL::OperatorBuilders, SequelMethods, ThreadLocalTimezones
Includes:
SQL::Constants
Defined in:
lib/sequel/core.rb,
lib/sequel/sql.rb,
lib/sequel/model.rb,
lib/sequel/dataset.rb,
lib/sequel/version.rb,
lib/sequel/database.rb,
lib/sequel/timezones.rb,
lib/sequel/deprecated.rb,
lib/sequel/exceptions.rb,
lib/sequel/model/base.rb,
lib/sequel/dataset/sql.rb,
lib/sequel/adapters/ado.rb,
lib/sequel/dataset/misc.rb,
lib/sequel/model/errors.rb,
lib/sequel/plugins/enum.rb,
lib/sequel/plugins/list.rb,
lib/sequel/plugins/tree.rb,
lib/sequel/plugins/uuid.rb,
lib/sequel/adapters/jdbc.rb,
lib/sequel/adapters/mock.rb,
lib/sequel/adapters/odbc.rb,
lib/sequel/database/misc.rb,
lib/sequel/dataset/graph.rb,
lib/sequel/dataset/query.rb,
lib/sequel/model/plugins.rb,
lib/sequel/plugins/dirty.rb,
lib/sequel/plugins/touch.rb,
lib/sequel/adapters/ibmdb.rb,
lib/sequel/adapters/mysql.rb,
lib/sequel/database/query.rb,
lib/sequel/plugins/finder.rb,
lib/sequel/plugins/pg_row.rb,
lib/sequel/adapters/mysql2.rb,
lib/sequel/adapters/oracle.rb,
lib/sequel/adapters/sqlite.rb,
lib/sequel/ast_transformer.rb,
lib/sequel/dataset/actions.rb,
lib/sequel/plugins/caching.rb,
lib/sequel/adapters/jdbc/h2.rb,
lib/sequel/adapters/tinytds.rb,
lib/sequel/adapters/trilogy.rb,
lib/sequel/database/dataset.rb,
lib/sequel/database/logging.rb,
lib/sequel/dataset/features.rb,
lib/sequel/extensions/query.rb,
lib/sequel/model/exceptions.rb,
lib/sequel/plugins/sharding.rb,
lib/sequel/adapters/jdbc/db2.rb,
lib/sequel/adapters/postgres.rb,
lib/sequel/database/features.rb,
lib/sequel/extensions/pg_row.rb,
lib/sequel/extensions/to_dot.rb,
lib/sequel/model/inflections.rb,
lib/sequel/plugins/rcte_tree.rb,
lib/sequel/adapters/ado/mssql.rb,
lib/sequel/adapters/jdbc/jtds.rb,
lib/sequel/extensions/pg_enum.rb,
lib/sequel/extensions/pg_inet.rb,
lib/sequel/extensions/pg_json.rb,
lib/sequel/model/associations.rb,
lib/sequel/plugins/eager_each.rb,
lib/sequel/plugins/inspect_pk.rb,
lib/sequel/plugins/subclasses.rb,
lib/sequel/plugins/timestamps.rb,
lib/sequel/adapters/ado/access.rb,
lib/sequel/adapters/amalgalite.rb,
lib/sequel/adapters/jdbc/derby.rb,
lib/sequel/adapters/jdbc/mssql.rb,
lib/sequel/adapters/jdbc/mysql.rb,
lib/sequel/adapters/odbc/mssql.rb,
lib/sequel/adapters/shared/db2.rb,
lib/sequel/database/connecting.rb,
lib/sequel/extensions/pg_array.rb,
lib/sequel/extensions/pg_range.rb,
lib/sequel/plugins/composition.rb,
lib/sequel/adapters/jdbc/hsqldb.rb,
lib/sequel/adapters/jdbc/oracle.rb,
lib/sequel/adapters/jdbc/sqlite.rb,
lib/sequel/adapters/sqlanywhere.rb,
lib/sequel/extensions/error_sql.rb,
lib/sequel/extensions/integer64.rb,
lib/sequel/extensions/migration.rb,
lib/sequel/extensions/pg_hstore.rb,
lib/sequel/model/dataset_module.rb,
lib/sequel/plugins/active_model.rb,
lib/sequel/plugins/split_values.rb,
lib/sequel/plugins/sql_comments.rb,
lib/sequel/plugins/static_cache.rb,
lib/sequel/plugins/table_select.rb,
lib/sequel/adapters/shared/mssql.rb,
lib/sequel/adapters/shared/mysql.rb,
lib/sequel/database/transactions.rb,
lib/sequel/extensions/graph_each.rb,
lib/sequel/extensions/pagination.rb,
lib/sequel/extensions/pg_row_ops.rb,
lib/sequel/extensions/provenance.rb,
lib/sequel/extensions/string_agg.rb,
lib/sequel/plugins/column_select.rb,
lib/sequel/plugins/serialization.rb,
lib/sequel/adapters/shared/access.rb,
lib/sequel/adapters/shared/oracle.rb,
lib/sequel/adapters/shared/sqlite.rb,
lib/sequel/adapters/utils/replace.rb,
lib/sequel/dataset/dataset_module.rb,
lib/sequel/extensions/dataset_run.rb,
lib/sequel/extensions/pg_inet_ops.rb,
lib/sequel/extensions/pg_interval.rb,
lib/sequel/extensions/pg_json_ops.rb,
lib/sequel/plugins/csv_serializer.rb,
lib/sequel/plugins/error_splitter.rb,
lib/sequel/plugins/force_encoding.rb,
lib/sequel/plugins/instance_hooks.rb,
lib/sequel/plugins/throw_failures.rb,
lib/sequel/plugins/update_refresh.rb,
lib/sequel/plugins/xml_serializer.rb,
lib/sequel/adapters/jdbc/sqlserver.rb,
lib/sequel/database/schema_methods.rb,
lib/sequel/extensions/escaped_like.rb,
lib/sequel/extensions/eval_inspect.rb,
lib/sequel/extensions/null_dataset.rb,
lib/sequel/extensions/pg_array_ops.rb,
lib/sequel/extensions/pg_range_ops.rb,
lib/sequel/extensions/pretty_table.rb,
lib/sequel/extensions/server_block.rb,
lib/sequel/extensions/sql_comments.rb,
lib/sequel/extensions/stdio_logger.rb,
lib/sequel/plugins/association_pks.rb,
lib/sequel/plugins/boolean_readers.rb,
lib/sequel/plugins/boolean_subsets.rb,
lib/sequel/plugins/columns_updated.rb,
lib/sequel/plugins/defaults_setter.rb,
lib/sequel/plugins/insert_conflict.rb,
lib/sequel/plugins/json_serializer.rb,
lib/sequel/plugins/lazy_attributes.rb,
lib/sequel/plugins/string_stripper.rb,
lib/sequel/adapters/jdbc/postgresql.rb,
lib/sequel/adapters/shared/postgres.rb,
lib/sequel/extensions/_model_pg_row.rb,
lib/sequel/extensions/_pretty_table.rb,
lib/sequel/extensions/any_not_empty.rb,
lib/sequel/extensions/index_caching.rb,
lib/sequel/extensions/pg_hstore_ops.rb,
lib/sequel/extensions/pg_multirange.rb,
lib/sequel/extensions/query_blocker.rb,
lib/sequel/extensions/schema_dumper.rb,
lib/sequel/extensions/select_remove.rb,
lib/sequel/plugins/accessed_columns.rb,
lib/sequel/plugins/after_initialize.rb,
lib/sequel/plugins/auto_validations.rb,
lib/sequel/plugins/column_conflicts.rb,
lib/sequel/plugins/forbid_lazy_load.rb,
lib/sequel/plugins/instance_filters.rb,
lib/sequel/plugins/inverted_subsets.rb,
lib/sequel/plugins/paged_operations.rb,
lib/sequel/plugins/typecast_on_load.rb,
lib/sequel/plugins/unlimited_update.rb,
lib/sequel/plugins/update_or_create.rb,
lib/sequel/adapters/jdbc/sqlanywhere.rb,
lib/sequel/database/dataset_defaults.rb,
lib/sequel/database/schema_generator.rb,
lib/sequel/extensions/caller_logging.rb,
lib/sequel/extensions/pg_loose_count.rb,
lib/sequel/extensions/pg_timestamptz.rb,
lib/sequel/extensions/schema_caching.rb,
lib/sequel/extensions/server_logging.rb,
lib/sequel/model/default_inflections.rb,
lib/sequel/plugins/async_thread_pool.rb,
lib/sequel/plugins/before_after_save.rb,
lib/sequel/plugins/column_encryption.rb,
lib/sequel/plugins/eager_graph_eager.rb,
lib/sequel/plugins/input_transformer.rb,
lib/sequel/plugins/many_through_many.rb,
lib/sequel/plugins/nested_attributes.rb,
lib/sequel/plugins/subset_conditions.rb,
lib/sequel/adapters/jdbc/transactions.rb,
lib/sequel/extensions/date_arithmetic.rb,
lib/sequel/extensions/exclude_or_null.rb,
lib/sequel/extensions/named_timezones.rb,
lib/sequel/extensions/set_literalizer.rb,
lib/sequel/extensions/split_array_nil.rb,
lib/sequel/extensions/sqlite_json_ops.rb,
lib/sequel/extensions/synchronize_sql.rb,
lib/sequel/plugins/blacklist_security.rb,
lib/sequel/plugins/def_dataset_method.rb,
lib/sequel/plugins/hook_class_methods.rb,
lib/sequel/plugins/optimistic_locking.rb,
lib/sequel/plugins/static_cache_cache.rb,
lib/sequel/plugins/update_primary_key.rb,
lib/sequel/plugins/validation_helpers.rb,
lib/sequel/plugins/whitelist_security.rb,
lib/sequel/adapters/shared/sqlanywhere.rb,
lib/sequel/adapters/utils/mysql_mysql2.rb,
lib/sequel/dataset/prepared_statements.rb,
lib/sequel/extensions/is_distinct_from.rb,
lib/sequel/extensions/round_timestamps.rb,
lib/sequel/plugins/association_proxies.rb,
lib/sequel/plugins/prepared_statements.rb,
lib/sequel/plugins/skip_create_refresh.rb,
lib/sequel/plugins/skip_saving_columns.rb,
lib/sequel/plugins/subset_static_cache.rb,
lib/sequel/plugins/unused_associations.rb,
lib/sequel/plugins/validate_associated.rb,
lib/sequel/plugins/validation_contexts.rb,
lib/sequel/extensions/arbitrary_servers.rb,
lib/sequel/extensions/async_thread_pool.rb,
lib/sequel/extensions/fiber_concurrency.rb,
lib/sequel/extensions/implicit_subquery.rb,
lib/sequel/extensions/pg_schema_caching.rb,
lib/sequel/plugins/dataset_associations.rb,
lib/sequel/plugins/require_valid_schema.rb,
lib/sequel/plugins/singular_table_names.rb,
lib/sequel/extensions/looser_typecasting.rb,
lib/sequel/extensions/sql_log_normalizer.rb,
lib/sequel/plugins/delay_add_association.rb,
lib/sequel/plugins/pg_array_associations.rb,
lib/sequel/adapters/utils/columns_limit_1.rb,
lib/sequel/extensions/identifier_mangling.rb,
lib/sequel/plugins/constraint_validations.rb,
lib/sequel/plugins/modification_detection.rb,
lib/sequel/plugins/pg_auto_validate_enums.rb,
lib/sequel/plugins/tactical_eager_loading.rb,
lib/sequel/dataset/placeholder_literalizer.rb,
lib/sequel/extensions/auto_literal_strings.rb,
lib/sequel/extensions/connection_validator.rb,
lib/sequel/extensions/dataset_source_alias.rb,
lib/sequel/extensions/pg_auto_parameterize.rb,
lib/sequel/plugins/class_table_inheritance.rb,
lib/sequel/plugins/deprecated_associations.rb,
lib/sequel/plugins/insert_returning_select.rb,
lib/sequel/plugins/optimistic_locking_base.rb,
lib/sequel/adapters/utils/stored_procedures.rb,
lib/sequel/extensions/columns_introspection.rb,
lib/sequel/extensions/connection_expiration.rb,
lib/sequel/extensions/constant_sql_override.rb,
lib/sequel/plugins/association_dependencies.rb,
lib/sequel/plugins/concurrent_eager_loading.rb,
lib/sequel/plugins/empty_failure_backtraces.rb,
lib/sequel/plugins/mssql_optimistic_locking.rb,
lib/sequel/plugins/pg_eager_any_typed_array.rb,
lib/sequel/plugins/prepared_statements_safe.rb,
lib/sequel/plugins/single_table_inheritance.rb,
lib/sequel/plugins/validation_class_methods.rb,
lib/sequel/extensions/constraint_validations.rb,
lib/sequel/extensions/thread_local_timezones.rb,
lib/sequel/plugins/auto_restrict_eager_graph.rb,
lib/sequel/plugins/instance_specific_default.rb,
lib/sequel/extensions/auto_cast_date_and_time.rb,
lib/sequel/extensions/pg_static_cache_updater.rb,
lib/sequel/plugins/pg_xmin_optimistic_locking.rb,
lib/sequel/extensions/date_parse_input_handler.rb,
lib/sequel/extensions/pg_extended_date_support.rb,
lib/sequel/extensions/sequel_4_dataset_methods.rb,
lib/sequel/extensions/virtual_row_method_block.rb,
lib/sequel/extensions/duplicate_columns_handler.rb,
lib/sequel/plugins/association_multi_add_remove.rb,
lib/sequel/adapters/utils/unmodified_identifiers.rb,
lib/sequel/extensions/current_datetime_timestamp.rb,
lib/sequel/extensions/empty_array_consider_nulls.rb,
lib/sequel/plugins/association_lazy_eager_option.rb,
lib/sequel/extensions/pg_extended_integer_support.rb,
lib/sequel/plugins/pg_auto_constraint_validations.rb,
lib/sequel/plugins/primary_key_lookup_check_values.rb,
lib/sequel/adapters/utils/mysql_prepared_statements.rb,
lib/sequel/extensions/_model_constraint_validations.rb,
lib/sequel/extensions/pg_auto_parameterize_in_array.rb,
lib/sequel/extensions/temporarily_release_connection.rb,
lib/sequel/dataset/deprecated_singleton_class_methods.rb,
lib/sequel/extensions/mssql_emulate_lateral_with_apply.rb,
lib/sequel/extensions/transaction_connection_validator.rb,
lib/sequel/plugins/serialization_modification_detection.rb,
lib/sequel/adapters/utils/emulate_offset_with_row_number.rb,
lib/sequel/plugins/validation_helpers_generic_type_messages.rb,
lib/sequel/adapters/utils/emulate_offset_with_reverse_and_count.rb,
lib/sequel/plugins/class_table_inheritance_constraint_validations.rb,
lib/sequel/extensions/pg_auto_parameterize_duplicate_query_detection.rb,
lib/sequel/plugins/auto_validations_constraint_validations_presence_message.rb

Overview

The pg_auto_parameterize_duplicate_query_detection extension builds on the pg_auto_parameterize extension, adding support for detecting duplicate queries inside a block that occur at the same location. This is designed mostly to catch duplicate query issues (e.g. N+1 queries) during testing.

To detect duplicate queries inside a block of code, wrap the code with detect_duplicate_queries:

DB.detect_duplicate_queries{your_code}

With this approach, if the test runs code where the same query is executed more than once with the same call stack, a Sequel::Postgres::AutoParameterizeDuplicateQueryDetection::DuplicateQueries exception will be raised.

You can pass the :warn option to detect_duplicate_queries to warn instead of raising. Note that if the block passed to detect_duplicate_queries raises, this extension will warn, and raise the original exception.

For more control, you can pass the :handler option to detect_duplicate_queries. If the :handler option is provided, this extension will call the :handler option with the hash of duplicate query information, and will not raise or warn. This can be useful in production environments, to record duplicate queries for later analysis.

For accuracy, the entire call stack is always used as part of the hash key to determine whether a query is duplicate. However, you can filter the displayed backtrace by using the :backtrace_filter option.

detect_duplicate_queries is concurrency aware, it uses the same approach that Sequel’s default connection pools use. So if you are running multiple threads, detect_duplicate_queries will only report duplicate queries for the current thread (or fiber if the fiber_concurrency extension is used).

When testing applications, it’s probably best to use this to wrap the application being tested. For example, testing with rack-test, if your app is App, you would want to wrap it:

include Rack::Test::Methods

WrappedApp = lambda do |env|
  DB.detect_duplicate_queries{App.call(env)}
end

def app
  WrappedApp
end

It is possible to use this to wrap each separate spec using an around hook, but that can result in false positives when using libraries that have implicit retrying (such as Capybara), as you can have the same call stack for multiple requests.

Related module: Sequel::Postgres::AutoParameterizeDuplicateQueryDetection

Defined Under Namespace

Modules: ADO, Access, Amalgalite, AnyNotEmpty, ArbitraryServers, AutoCastDateAndTime, CallerLogging, ColumnsIntrospection, ConnectionExpiration, ConnectionValidator, ConstantSqlOverride, ConstraintValidations, CoreRefinements, CurrentDateTimeTimestamp, DB2, DatabaseQuery, DatasetPagination, DatasetPrinter, DatasetQuery, DatasetRun, DateParseInputHandler, DateTimeParseToTime, Deprecation, DuplicateColumnsHandler, EmptyArrayConsiderNulls, EmulateOffsetWithReverseAndCount, EmulateOffsetWithRowNumber, ErrorSQL, EvalInspect, ExcludeOrNull, FiberConcurrency, GraphEach, IBMDB, IdentifierMangling, IndexCaching, Inflections, Integer64, JDBC, LooserTypecasting, MSSQL, Mock, MySQL, Mysql2, NamedTimezones, ODBC, Oracle, Plugins, Postgres, PrettyTable, QueryBlocker, S, SQL, SQLComments, SQLLogNormalizer, SQLite, Schema, SchemaCaching, SchemaDumper, SelectRemove, Sequel4DatasetMethods, SequelMethods, ServerBlock, ServerLogging, SqlAnywhere, SymbolAref, SymbolAs, ThreadLocalTimezones, ThreadedServerBlock, TinyTDS, TransactionConnectionValidator, Trilogy, UnmodifiedIdentifiers, UnthreadedServerBlock Classes: ASTTransformer, BasicObject, ConnectionPool, Database, DatabaseError, Dataset, DuplicateColumnError, Error, HookFailed, IntegerMigrator, LiteralString, MassAssignmentRestriction, Migration, MigrationAlterTableReverser, MigrationDSL, MigrationReverser, Migrator, Model, NoMatchingRow, Qualifier, SQLTime, ShardedSingleConnectionPool, ShardedThreadedConnectionPool, ShardedTimedQueueConnectionPool, SimpleMigration, SingleConnectionPool, StdioLogger, ThreadedConnectionPool, TimedQueueConnectionPool, TimestampMigrator, ToDot, UnableToReacquireConnectionError, ValidationFailed

Constant Summary collapse

VIRTUAL_ROW = 
new
OPTS =

Frozen hash used as the default options hash for most options.

{}.freeze
SPLIT_SYMBOL_CACHE = 
{}
MAJOR =

The major version of Sequel. Only bumped for major changes.

5
MINOR =

The minor version of Sequel. Bumped for every non-patch level release, generally around once a month.

98
TINY =

The tiny version of Sequel. Usually 0, only bumped for bugfix releases that fix regressions from previous versions.

0
VERSION =

The version of Sequel you are using, as a string (e.g. “2.11.0”)

[MAJOR, MINOR, TINY].join('.').freeze
VERSION_NUMBER =

The version of Sequel you are using, as a number (2.11.0 -> 20110)

MAJOR*10000 + MINOR*10 + TINY
ADAPTER_MAP =

Hash of adapters that have been used. The key is the adapter scheme symbol, and the value is the Database subclass.

{}
SHARED_ADAPTER_MAP =

Hash of shared adapters that have been registered. The key is the adapter scheme symbol, and the value is the Sequel module containing the shared adapter.

{}
DATABASES =

Array of all databases to which Sequel has connected. If you are developing an application that can connect to an arbitrary number of databases, delete the database objects from this (or use the :keep_reference Database option or a block when connecting) or they will not get garbage collected.

[]
Timezones =

Backwards compatible alias

SequelMethods
DEFAULT_INFLECTIONS_PROC =

Proc that is instance_execed to create the default inflections for both the model inflector and the inflector extension.

proc do
  plural(/$/, 's')
  plural(/s$/i, 's')
  plural(/(alias|(?:stat|octop|vir|b)us)$/i, '\1es')
  plural(/(buffal|tomat)o$/i, '\1oes')
  plural(/([ti])um$/i, '\1a')
  plural(/sis$/i, 'ses')
  plural(/(?:([^f])fe|([lr])f)$/i, '\1\2ves')
  plural(/(hive)$/i, '\1s')
  plural(/([^aeiouy]|qu)y$/i, '\1ies')
  plural(/(x|ch|ss|sh)$/i, '\1es')
  plural(/(matr|vert|ind)ix|ex$/i, '\1ices')
  plural(/([m|l])ouse$/i, '\1ice')

  singular(/s$/i, '')
  singular(/([ti])a$/i, '\1um')
  singular(/(analy|ba|cri|diagno|parenthe|progno|synop|the)ses$/i, '\1sis')
  singular(/([^f])ves$/i, '\1fe')
  singular(/([h|t]ive)s$/i, '\1')
  singular(/([lr])ves$/i, '\1f')
  singular(/([^aeiouy]|qu)ies$/i, '\1y')
  singular(/(m)ovies$/i, '\1ovie')
  singular(/(x|ch|ss|sh)es$/i, '\1')
  singular(/([m|l])ice$/i, '\1ouse')
  singular(/buses$/i, 'bus')
  singular(/oes$/i, 'o')
  singular(/shoes$/i, 'shoe')
  singular(/(alias|(?:stat|octop|vir|b)us)es$/i, '\1')
  singular(/(vert|ind)ices$/i, '\1ex')
  singular(/matrices$/i, 'matrix')

  irregular('person', 'people')
  irregular('man', 'men')
  irregular('child', 'children')
  irregular('sex', 'sexes')
  irregular('move', 'moves')
  irregular('quiz', 'quizzes')
  irregular('testis', 'testes')

  uncountable(%w(equipment information rice money species series fish sheep news))
end

Constants included from SQL::Constants

SQL::Constants::CURRENT_DATE, SQL::Constants::CURRENT_TIME, SQL::Constants::CURRENT_TIMESTAMP, SQL::Constants::DEFAULT, SQL::Constants::NEW, SQL::Constants::NOTNULL, SQL::Constants::NULL, SQL::Constants::OLD, SQL::Constants::SQLFALSE, SQL::Constants::SQLTRUE

Instance Attribute Summary

Attributes included from SequelMethods

#application_timezone, #convert_two_digit_years, #database_timezone, #datetime_class, #single_threaded, #typecast_timezone

Attributes included from NamedTimezones

#tzinfo_disambiguator

Class Method Summary collapse

Methods included from SQL::Builders

as, asc, blob, case, cast, cast_numeric, cast_string, char_length, date_add, date_sub, deep_qualify, delay, desc, expr, extract, function, hstore, hstore_op, identifier, ilike, is_distinct_from, join, like, lit, negate, or, pg_array, pg_array_op, pg_inet_op, pg_json, pg_json_op, pg_json_wrap, pg_jsonb, pg_jsonb_op, pg_jsonb_wrap, pg_multirange, pg_range, pg_range_op, pg_row, pg_row_op, qualify, skip_pg_auto_param, sqlite_json_op, sqlite_jsonb_op, string_agg, subscript, trim, value_list

Methods included from SQL::OperatorBuilders

**, ~

Methods included from SequelMethods

application_to_database_timestamp, condition_specifier?, connect, convert_exception_class, convert_output_timestamp, convert_timestamp, core_extensions?, current, database_to_application_timestamp, default_timezone=, elapsed_seconds_since, extension, json_parser_error_class, object_to_json, parse_json, recursive_map, require, set_temp_name, split_symbol, split_symbols=, split_symbols?, start_timer, string_to_date, string_to_datetime, string_to_time, synchronize, synchronize_with, transaction, typecast_to_application_timestamp, virtual_row

Methods included from EvalInspect

eval_inspect

Methods included from FiberConcurrency

current

Methods included from DateParseInputHandler

date_parse_input_handler, string_to_date, string_to_datetime, string_to_time

Class Method Details

.core_extensions? ⇒ Boolean

This extension loads the core extensions.

Returns:

  • (Boolean) 


11
12
13
 
# File 'lib/sequel/extensions/core_extensions.rb', line 11

def Sequel.core_extensions?
  true
end

.inflections {|Inflections| ... } ⇒ Object

Yield the Inflections module if a block is given, and return the Inflections module.

Yields:



6
7
8
9
 
# File 'lib/sequel/model/inflections.rb', line 6

def self.inflections
  yield Inflections if defined?(yield)
  Inflections
end

.migration(&block) ⇒ Object

The preferred method for writing Sequel migrations, using a DSL:

Sequel.migration do
  up do
    create_table(:artists) do
      primary_key :id
      String :name
    end
  end

  down do
    drop_table(:artists)
  end
end

Designed to be used with the Migrator class, part of the migration extension.



312
313
314
 
# File 'lib/sequel/extensions/migration.rb', line 312

def self.migration(&block)
  MigrationDSL.create(&block)
end

.version ⇒ Object

The version of Sequel you are using, as a string (e.g. “2.11.0”)



22
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24
 
# File 'lib/sequel/version.rb', line 22

def self.version
  VERSION
end