Module | Sequel

In:

lib/sequel/adapters/ado.rb
lib/sequel/adapters/ado/mssql.rb
lib/sequel/adapters/amalgalite.rb
lib/sequel/adapters/db2.rb
lib/sequel/adapters/dbi.rb
lib/sequel/adapters/do.rb
lib/sequel/adapters/do/mysql.rb
lib/sequel/adapters/do/postgres.rb
lib/sequel/adapters/do/sqlite.rb
lib/sequel/adapters/firebird.rb
lib/sequel/adapters/informix.rb
lib/sequel/adapters/jdbc.rb
lib/sequel/adapters/jdbc/h2.rb
lib/sequel/adapters/jdbc/mssql.rb
lib/sequel/adapters/jdbc/mysql.rb
lib/sequel/adapters/jdbc/oracle.rb
lib/sequel/adapters/jdbc/postgresql.rb
lib/sequel/adapters/jdbc/sqlite.rb
lib/sequel/adapters/jdbc/as400.rb
lib/sequel/adapters/jdbc/informix.rb
lib/sequel/adapters/jdbc/jtds.rb
lib/sequel/adapters/jdbc/sqlserver.rb
lib/sequel/adapters/jdbc/db2.rb
lib/sequel/adapters/jdbc/transactions.rb
lib/sequel/adapters/jdbc/firebird.rb
lib/sequel/adapters/jdbc/hsqldb.rb
lib/sequel/adapters/jdbc/derby.rb
lib/sequel/adapters/mysql.rb
lib/sequel/adapters/odbc.rb
lib/sequel/adapters/odbc/mssql.rb
lib/sequel/adapters/odbc/db2.rb
lib/sequel/adapters/openbase.rb
lib/sequel/adapters/oracle.rb
lib/sequel/adapters/postgres.rb
lib/sequel/adapters/shared/mssql.rb
lib/sequel/adapters/shared/mysql.rb
lib/sequel/adapters/shared/oracle.rb
lib/sequel/adapters/shared/postgres.rb
lib/sequel/adapters/shared/progress.rb
lib/sequel/adapters/shared/sqlite.rb
lib/sequel/adapters/shared/access.rb
lib/sequel/adapters/shared/informix.rb
lib/sequel/adapters/shared/mysql_prepared_statements.rb
lib/sequel/adapters/shared/db2.rb
lib/sequel/adapters/shared/firebird.rb
lib/sequel/adapters/sqlite.rb
lib/sequel/adapters/utils/stored_procedures.rb
lib/sequel/adapters/utils/emulate_offset_with_row_number.rb
lib/sequel/adapters/mysql2.rb
lib/sequel/adapters/swift.rb
lib/sequel/adapters/swift/mysql.rb
lib/sequel/adapters/swift/postgres.rb
lib/sequel/adapters/swift/sqlite.rb
lib/sequel/adapters/tinytds.rb
lib/sequel/adapters/ibmdb.rb
lib/sequel/adapters/mock.rb
lib/sequel/core.rb
lib/sequel/database.rb
lib/sequel/database/schema_generator.rb
lib/sequel/database/schema_methods.rb
lib/sequel/database/connecting.rb
lib/sequel/database/dataset.rb
lib/sequel/database/dataset_defaults.rb
lib/sequel/database/logging.rb
lib/sequel/database/misc.rb
lib/sequel/database/query.rb
lib/sequel/dataset.rb
lib/sequel/dataset/actions.rb
lib/sequel/dataset/features.rb
lib/sequel/dataset/graph.rb
lib/sequel/dataset/misc.rb
lib/sequel/dataset/prepared_statements.rb
lib/sequel/dataset/query.rb
lib/sequel/dataset/sql.rb
lib/sequel/dataset/mutation.rb
lib/sequel/exceptions.rb
lib/sequel/extensions/looser_typecasting.rb
lib/sequel/extensions/migration.rb
lib/sequel/extensions/named_timezones.rb
lib/sequel/extensions/pagination.rb
lib/sequel/extensions/pretty_table.rb
lib/sequel/extensions/query.rb
lib/sequel/extensions/schema_dumper.rb
lib/sequel/extensions/sql_expr.rb
lib/sequel/extensions/thread_local_timezones.rb
lib/sequel/extensions/to_dot.rb
lib/sequel/extensions/columns_introspection.rb
lib/sequel/metaprogramming.rb
lib/sequel/model.rb
lib/sequel/model/associations.rb
lib/sequel/model/base.rb
lib/sequel/model/default_inflections.rb
lib/sequel/model/errors.rb
lib/sequel/model/exceptions.rb
lib/sequel/model/inflections.rb
lib/sequel/model/plugins.rb
lib/sequel/plugins/active_model.rb
lib/sequel/plugins/association_dependencies.rb
lib/sequel/plugins/association_proxies.rb
lib/sequel/plugins/boolean_readers.rb
lib/sequel/plugins/caching.rb
lib/sequel/plugins/class_table_inheritance.rb
lib/sequel/plugins/force_encoding.rb
lib/sequel/plugins/hook_class_methods.rb
lib/sequel/plugins/identity_map.rb
lib/sequel/plugins/instance_hooks.rb
lib/sequel/plugins/lazy_attributes.rb
lib/sequel/plugins/many_through_many.rb
lib/sequel/plugins/nested_attributes.rb
lib/sequel/plugins/optimistic_locking.rb
lib/sequel/plugins/schema.rb
lib/sequel/plugins/serialization.rb
lib/sequel/plugins/subclasses.rb
lib/sequel/plugins/single_table_inheritance.rb
lib/sequel/plugins/tactical_eager_loading.rb
lib/sequel/plugins/timestamps.rb
lib/sequel/plugins/touch.rb
lib/sequel/plugins/typecast_on_load.rb
lib/sequel/plugins/validation_class_methods.rb
lib/sequel/plugins/validation_helpers.rb
lib/sequel/plugins/composition.rb
lib/sequel/plugins/rcte_tree.rb
lib/sequel/plugins/instance_filters.rb
lib/sequel/plugins/sharding.rb
lib/sequel/plugins/skip_create_refresh.rb
lib/sequel/plugins/string_stripper.rb
lib/sequel/plugins/update_primary_key.rb
lib/sequel/plugins/association_pks.rb
lib/sequel/plugins/json_serializer.rb
lib/sequel/plugins/list.rb
lib/sequel/plugins/tree.rb
lib/sequel/plugins/xml_serializer.rb
lib/sequel/plugins/association_autoreloading.rb
lib/sequel/plugins/serialization_modification_detection.rb
lib/sequel/plugins/defaults_setter.rb
lib/sequel/plugins/prepared_statements.rb
lib/sequel/plugins/prepared_statements_safe.rb
lib/sequel/plugins/prepared_statements_with_pk.rb
lib/sequel/plugins/prepared_statements_associations.rb
lib/sequel/plugins/dataset_associations.rb
lib/sequel/sql.rb
lib/sequel/timezones.rb
lib/sequel/version.rb
lib/sequel/ast_transformer.rb

The columns_introspection extension attempts to introspect the selected columns for a dataset before issuing a query. If it thinks it can guess correctly at the columns the query will use, it will return the columns without issuing a database query. This method is not fool-proof, it‘s possible that some databases will use column names that Sequel does not expect.

To enable this for a single dataset, extend the dataset with Sequel::ColumnIntrospection. To enable this for all datasets, run:

      Sequel::Dataset.introspect_all_columns

### Methods

Model condition_specifier? connect convert_exception_class extension identifier_input_method= identifier_output_method= inflections load_gem migration quote_identifiers= require single_threaded= string_to_date string_to_datetime string_to_time transaction ts_require tsk_require use_iso_date_format= version virtual_row

### Included Modules

SQL::Constants

### Classes and Modules

Module Sequel::ADO
Module Sequel::Access
Module Sequel::Amalgalite
Module Sequel::ColumnsIntrospection
Module Sequel::DB2
Module Sequel::DBI
Module Sequel::DataObjects
Module Sequel::EmulateOffsetWithRowNumber
Module Sequel::Firebird
Module Sequel::IBMDB
Module Sequel::Inflections
Module Sequel::Informix
Module Sequel::JDBC
Module Sequel::LooserTypecasting
Module Sequel::MSSQL
Module Sequel::Metaprogramming
Module Sequel::Mock
Module Sequel::MySQL
Module Sequel::Mysql2
Module Sequel::NamedTimezones
Module Sequel::ODBC
Module Sequel::OpenBase
Module Sequel::Oracle
Module Sequel::Plugins
Module Sequel::Postgres
Module Sequel::PrettyTable
Module Sequel::Progress
Module Sequel::SQL
Module Sequel::SQLite
Module Sequel::Schema
Module Sequel::Swift
Module Sequel::ThreadLocalTimezones
Module Sequel::Timezones
Module Sequel::TinyTDS
Class Sequel::ASTTransformer
Class Sequel::Adapter
Class Sequel::AdapterNotFound
Class Sequel::BasicObject
Class Sequel::ConnectionPool
Class Sequel::Database
Class Sequel::DatabaseConnectionError
Class Sequel::DatabaseDisconnectError
Class Sequel::DatabaseError
Class Sequel::Dataset
Class Sequel::Error
Class Sequel::HookFailed
Class Sequel::IntegerMigrator
Class Sequel::InvalidOperation
Class Sequel::InvalidValue
Class Sequel::LiteralString
Class Sequel::Migration
Class Sequel::MigrationAlterTableReverser
Class Sequel::MigrationDSL
Class Sequel::MigrationReverser
Class Sequel::Migrator
Class Sequel::Model
Class Sequel::NoExistingObject
Class Sequel::NotImplemented
Class Sequel::PoolTimeout
Class Sequel::Qualifier
Class Sequel::Rollback
Class Sequel::SQLTime
Class Sequel::ShardedSingleConnectionPool
Class Sequel::ShardedThreadedConnectionPool
Class Sequel::SimpleMigration
Class Sequel::SingleConnectionPool
Class Sequel::ThreadedConnectionPool
Class Sequel::TimestampMigrator
Class Sequel::ToDot
Class Sequel::UnbindDuplicate
Class Sequel::Unbinder
Class Sequel::UndefinedAssociation
Class Sequel::ValidationFailed

### Constants

MYSQL_TYPES | = | {} |  | Hash with integer keys and callable values for converting MySQL types.
PG_NAMED_TYPES | = | {} |  | Hash with type name symbols and callable values for converting PostgreSQL types. Non-builtin types that don‘t have fixed numbers should use this to register conversion procs.
PG_TYPES | = | {} |  | Hash with integer keys and callable values for converting PostgreSQL types.

SELECT_SERIAL_SEQUENCE

=

proc do |schema, table| <<-end_sql SELECT '"' || name.nspname || '".' || seq.relname || '' FROM pg_class seq, pg_attribute attr, pg_depend dep, pg_namespace name, pg_constraint cons WHERE seq.oid = dep.objid AND seq.relnamespace = name.oid AND seq.relkind = 'S' AND attr.attrelid = dep.refobjid AND attr.attnum = dep.refobjsubid AND attr.attrelid = cons.conrelid AND attr.attnum = cons.conkey[1] AND cons.contype = 'p' #{"AND name.nspname = '#{schema}'" if schema} AND seq.relname = '#{table}' end_sql

SQLITE_TYPES | = | {} |  | Hash with string keys and callable values for converting SQLite types.
ADAPTER_MAP | = | {} |  | Hash of adapters that have been used. The key is the adapter scheme symbol, and the value is the Database subclass.
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 they will not get garbage collected.
DEFAULT_INFLECTIONS_PROC | = | proc do plural(/$/, 's') |  | Proc that is instance evaled to create the default inflections for both the model inflector and the inflector extension.
BeforeHookFailed | = | HookFailed |  | Deprecated alias for HookFailed, kept for backwards compatibility
MAJOR | = | 3 |  | The major version of Sequel. Only bumped for major changes.
MINOR | = | 32 |  | The minor version of Sequel. Bumped for every non-patch level release, generally around once a month.
TINY | = | 0 |  | The tiny version of Sequel. Usually 0, only bumped for bugfix releases that fix regressions from previous versions.
VERSION | = | [MAJOR, MINOR, TINY].join('.') |  | The version of Sequel you are using, as a string (e.g. "2.11.0")

### External Aliases

require | -> | k_require
| Alias to the standard version of require

### Attributes

convert_invalid_date_time | [RW] | Whether to convert invalid date time values by default. Only applies to Sequel::Database instances created after this has been set.

convert_two_digit_years

[RW]

Sequel converts two digit years in `Date`s and `DateTime`s by default, so 01/02/03 is interpreted at January 2nd, 2003, and 12/13/99 is interpreted as December 13, 1999. You can override this to treat those dates as January 2nd, 0003 and December 13, 0099, respectively, by:

      Sequel.convert_two_digit_years = false

datetime_class

[RW]

Sequel can use either `Time` or `DateTime` for times returned from the database. It defaults to `Time`. To change it to `DateTime`:

      Sequel.datetime_class = DateTime

For ruby versions less than 1.9.2, `Time` has a limited range (1901 to 2038), so if you use datetimes out of that range, you need to switch to `DateTime`. Also, before 1.9.2, `Time` can only handle local and UTC times, not other timezones. Note that `Time` and `DateTime` objects have a different API, and in cases where they implement the same methods, they often implement them differently (e.g. + using seconds on `Time` and days on `DateTime`).

empty_array_handle_nulls

[RW]

Sets whether or not to attempt to handle NULL values correctly when given an empty array. By default:

      DB[:a].filter(:b=>[])
      # SELECT * FROM a WHERE (b != b)
      DB[:a].exclude(:b=>[])
      # SELECT * FROM a WHERE (b = b)

However, some databases (e.g. MySQL) will perform very poorly with this type of query. You can set this to false to get the following behavior:

      DB[:a].filter(:b=>[])
      # SELECT * FROM a WHERE 1 = 0
      DB[:a].exclude(:b=>[])
      # SELECT * FROM a WHERE 1 = 1

This may not handle NULLs correctly, but can be much faster on some databases.

use_iso_date_format | [R] | As an optimization, Sequel sets the date style to ISO, so that PostgreSQL provides the date in a known format that Sequel can parse faster. This can be turned off if you require a date style other than ISO.
virtual_row_instance_eval | [RW] | For backwards compatibility, has no effect.

### Public Class methods

Model(source)

Lets you create a Model subclass with its dataset already set. `source` should be an instance of one of the following classes:

Database : | Sets the database for this model to `source`. Generally only useful when subclassing directly from the returned class, where the name of the subclass sets the table name (which is combined with the `Database` in `source` to create the dataset to use)
Dataset : | Sets the dataset for this model to `source`.
other : | Sets the table name for this model to `source`. The class will use the default database for model classes in order to create the dataset.

The purpose of this method is to set the dataset/database automatically for a model class, if the table name doesn‘t match the implicit name. This is neater than using set_dataset inside the class, doesn‘t require a bogus query for the schema.

      # Using a symbol
      class Comment < Sequel::Model(:something)
        table_name # => :something
      end

      # Using a dataset
      class Comment < Sequel::Model(DB1[:something])
        dataset # => DB1[:something]
      end

      # Using a database
      class Comment < Sequel::Model(DB1)
        dataset # => DB1[:comments]
      end

[Source]

        # File lib/sequel/model.rb, line 37
    37:   def self.Model(source)
    38:     Model::ANONYMOUS_MODEL_CLASSES[source] ||= if source.is_a?(Database)
    39:       c = Class.new(Model)
    40:       c.db = source
    41:       c
    42:     else
    43:       Class.new(Model).set_dataset(source)
    44:     end
    45:   end

condition_specifier?(obj)

Returns true if the passed object could be a specifier of conditions, false otherwise. Currently, Sequel considers hashes and arrays of two element arrays as condition specifiers.

      Sequel.condition_specifier?({}) # => true
      Sequel.condition_specifier?([[1, 2]]) # => true
      Sequel.condition_specifier?([]) # => false
      Sequel.condition_specifier?([1]) # => false
      Sequel.condition_specifier?(1) # => false

[Source]

         # File lib/sequel/core.rb, line 111
    111:   def self.condition_specifier?(obj)
    112:     case obj
    113:     when Hash
    114:       true
    115:     when Array
    116:       !obj.empty? && !obj.is_a?(SQL::ValueList) && obj.all?{|i| (Array === i) && (i.length == 2)}
    117:     else
    118:       false
    119:     end
    120:   end

connect(*args, &block)

Creates a new database object based on the supplied connection string and optional arguments. The specified scheme determines the database class used, and the rest of the string specifies the connection options. For example:

      DB = Sequel.connect('sqlite:/') # Memory database
      DB = Sequel.connect('sqlite://blog.db') # ./blog.db
      DB = Sequel.connect('sqlite:///blog.db') # /blog.db
      DB = Sequel.connect('postgres://user:password@host:port/database_name')
      DB = Sequel.connect('sqlite:///blog.db', :max_connections=>10)

If a block is given, it is passed the opened `Database` object, which is closed when the block exits. For example:

      Sequel.connect('sqlite://blog.db'){|db| puts db[:users].count}

For details, see the "Connecting to a Database" guide. To set up a master/slave or sharded database connection, see the "Master/Slave Databases and Sharding" guide.

[Source]

         # File lib/sequel/core.rb, line 140
    140:   def self.connect(*args, &block)
    141:     Database.connect(*args, &block)
    142:   end

convert_exception_class(exception, klass)

Convert the `exception` to the given class. The given class should be `Sequel::Error` or a subclass. Returns an instance of `klass` with the message and backtrace of `exception`.

[Source]

         # File lib/sequel/core.rb, line 147
    147:   def self.convert_exception_class(exception, klass)
    148:     return exception if exception.is_a?(klass)
    149:     e = klass.new("#{exception.class}: #{exception.message}")
    150:     e.wrapped_exception = exception
    151:     e.set_backtrace(exception.backtrace)
    152:     e
    153:   end

extension(*extensions)

Load all Sequel extensions given. Extensions are just files that exist under `sequel/extensions` in the load path, and are just required. Generally, extensions modify the behavior of `Database` and/or `Dataset`, but Sequel ships with some extensions that modify other classes that exist for backwards compatibility. In some cases, requiring an extension modifies classes directly, and in others, it just loads a module that you can extend other classes with. Consult the documentation for each extension you plan on using for usage.

      Sequel.extension(:schema_dumper)
      Sequel.extension(:pagination, :query)

[Source]

         # File lib/sequel/core.rb, line 165
    165:   def self.extension(*extensions)
    166:     extensions.each{|e| tsk_require "sequel/extensions/#{e}"}
    167:   end

identifier_input_method=(value)

Set the method to call on identifiers going into the database. This affects the literalization of identifiers by calling this method on them before they are input. Sequel upcases identifiers in all SQL strings for most databases, so to turn that off:

      Sequel.identifier_input_method = nil

to downcase instead:

      Sequel.identifier_input_method = :downcase

Other String instance methods work as well.

[Source]

         # File lib/sequel/core.rb, line 180
    180:   def self.identifier_input_method=(value)
    181:     Database.identifier_input_method = value
    182:   end

identifier_output_method=(value)

Set the method to call on identifiers coming out of the database. This affects the literalization of identifiers by calling this method on them when they are retrieved from the database. Sequel downcases identifiers retrieved for most databases, so to turn that off:

      Sequel.identifier_output_method = nil

to upcase instead:

      Sequel.identifier_output_method = :upcase

Other String instance methods work as well.

[Source]

         # File lib/sequel/core.rb, line 196
    196:   def self.identifier_output_method=(value)
    197:     Database.identifier_output_method = value
    198:   end

inflections() {|Inflections if block_given?| ...}

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

[Source]

       # File lib/sequel/model/inflections.rb, line 4
    4:   def self.inflections
    5:     yield Inflections if block_given?
    6:     Inflections
    7:   end

load_gem(name)

Allowing loading the necessary JDBC support via a gem, which works for PostgreSQL, MySQL, and SQLite.

[Source]

         # File lib/sequel/adapters/jdbc.rb, line 123
    123:     def self.load_gem(name)
    124:       begin
    125:         Sequel.tsk_require "jdbc/#{name}"
    126:       rescue LoadError
    127:         # jdbc gem not used, hopefully the user has the .jar in their CLASSPATH
    128:       end
    129:     end

migration(&block)

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.

[Source]

         # File lib/sequel/extensions/migration.rb, line 241
    241:   def self.migration(&block)
    242:     MigrationDSL.create(&block)
    243:   end

quote_identifiers=(value)

Set whether to quote identifiers for all databases by default. By default, Sequel quotes identifiers in all SQL strings, so to turn that off:

      Sequel.quote_identifiers = false

[Source]

         # File lib/sequel/core.rb, line 204
    204:   def self.quote_identifiers=(value)
    205:     Database.quote_identifiers = value
    206:   end

require(files, subdir=nil)

Require all given `files` which should be in the same or a subdirectory of this file. If a `subdir` is given, assume all `files` are in that subdir. This is used to ensure that the files loaded are from the same version of Sequel as this file.

[Source]

         # File lib/sequel/core.rb, line 212
    212:   def self.require(files, subdir=nil)
    213:     Array(files).each{|f| super("#{File.dirname(__FILE__).untaint}/#{"#{subdir}/" if subdir}#{f}")}
    214:   end

single_threaded=(value)

Set whether to set the single threaded mode for all databases by default. By default, Sequel uses a thread-safe connection pool, which isn‘t as fast as the single threaded connection pool. If your program will only have one thread, and speed is a priority, you may want to set this to true:

      Sequel.single_threaded = true

[Source]

         # File lib/sequel/core.rb, line 222
    222:   def self.single_threaded=(value)
    223:     Database.single_threaded = value
    224:   end

string_to_date(string)

Converts the given `string` into a `Date` object.

      Sequel.string_to_date('2010-09-10') # Date.civil(2010, 09, 10)

[Source]

         # File lib/sequel/core.rb, line 229
    229:   def self.string_to_date(string)
    230:     begin
    231:       Date.parse(string, Sequel.convert_two_digit_years)
    232:     rescue => e
    233:       raise convert_exception_class(e, InvalidValue)
    234:     end
    235:   end

string_to_datetime(string)

Converts the given `string` into a `Time` or `DateTime` object, depending on the value of `Sequel.datetime_class`.

      Sequel.string_to_datetime('2010-09-10 10:20:30') # Time.local(2010, 09, 10, 10, 20, 30)

[Source]

         # File lib/sequel/core.rb, line 241
    241:   def self.string_to_datetime(string)
    242:     begin
    243:       if datetime_class == DateTime
    244:         DateTime.parse(string, convert_two_digit_years)
    245:       else
    246:         datetime_class.parse(string)
    247:       end
    248:     rescue => e
    249:       raise convert_exception_class(e, InvalidValue)
    250:     end
    251:   end

string_to_time(string)

Converts the given `string` into a `Sequel::SQLTime` object.

      v = Sequel.string_to_time('10:20:30') # Sequel::SQLTime.parse('10:20:30')
      DB.literal(v) # => '10:20:30'

[Source]

         # File lib/sequel/core.rb, line 257
    257:   def self.string_to_time(string)
    258:     begin
    259:       SQLTime.parse(string)
    260:     rescue => e
    261:       raise convert_exception_class(e, InvalidValue)
    262:     end
    263:   end

transaction(dbs, opts={}, &block)

Uses a transaction on all given databases with the given options. This:

      Sequel.transaction([DB1, DB2, DB3]){...}

is equivalent to:

      DB1.transaction do
        DB2.transaction do
          DB3.transaction do
            ...
          end
        end
      end

except that if Sequel::Rollback is raised by the block, the transaction is rolled back on all databases instead of just the last one.

Note that this method cannot guarantee that all databases will commit or rollback. For example, if DB3 commits but attempting to commit on DB2 fails (maybe because foreign key checks are deferred), there is no way to uncommit the changes on DB3. For that kind of support, you need to have two-phase commit/prepared transactions (which Sequel supports on some databases).

[Source]

         # File lib/sequel/core.rb, line 288
    288:   def self.transaction(dbs, opts={}, &block)
    289:     unless opts[:rollback]
    290:       rescue_rollback = true
    291:       opts = opts.merge(:rollback=>:reraise)
    292:     end
    293:     pr = dbs.reverse.inject(block){|bl, db| proc{db.transaction(opts, &bl)}}
    294:     if rescue_rollback
    295:       begin
    296:         pr.call
    297:       rescue Sequel::Rollback => e
    298:         nil
    299:       end
    300:     else
    301:       pr.call
    302:     end
    303:   end

ts_require(*args)

Same as Sequel.require, but wrapped in a mutex in order to be thread safe.

[Source]

         # File lib/sequel/core.rb, line 306
    306:   def self.ts_require(*args)
    307:     check_requiring_thread{require(*args)}
    308:   end

tsk_require(*args)

Same as Kernel.require, but wrapped in a mutex in order to be thread safe.

[Source]

         # File lib/sequel/core.rb, line 311
    311:   def self.tsk_require(*args)
    312:     check_requiring_thread{k_require(*args)}
    313:   end

use_iso_date_format=(v)

Modify the type translator for the date type depending on the value given.

[Source]

         # File lib/sequel/adapters/postgres.rb, line 125
    125:     def self.use_iso_date_format=(v)
    126:       PG_TYPES[1082] = v ? TYPE_TRANSLATOR.method(:date) : Sequel.method(:string_to_date)
    127:       @use_iso_date_format = v
    128:     end

version()

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

[Source]

        # File lib/sequel/version.rb, line 15
    15:   def self.version
    16:     VERSION
    17:   end

virtual_row(&block)

If the supplied block takes a single argument, yield a new `SQL::VirtualRow` instance to the block argument. Otherwise, evaluate the block in the context of a new `SQL::VirtualRow` instance.

      Sequel.virtual_row{a} # Sequel::SQL::Identifier.new(:a)
      Sequel.virtual_row{|o| o.a{}} # Sequel::SQL::Function.new(:a)

[Source]

         # File lib/sequel/core.rb, line 322
    322:   def self.virtual_row(&block)
    323:     vr = SQL::VirtualRow.new
    324:     case block.arity
    325:     when -1, 0
    326:       vr.instance_eval(&block)
    327:     else
    328:       block.call(vr)
    329:     end
    330:   end

[Validate]