### Home Classes Methods

### In Files

- lib/sequel/adapters/tinytds.rb

### Parent

Sequel::Database

### Methods

- #column_list_sql
- #connect
- #database_error_classes
- #disconnect_connection
- #disconnect_error?
- #execute
- #execute_ddl
- #execute_dui
- #execute_insert
- #ps_arg_type

### Included Modules

- Sequel::MSSQL::DatabaseMethods

### Files

- CHANGELOG
- MIT-LICENSE
- README.rdoc
- active_record.rdoc
- advanced_associations.rdoc
- association_basics.rdoc
- cheat_sheet.rdoc
- dataset_basics.rdoc
- dataset_filtering.rdoc
- mass_assignment.rdoc
- migration.rdoc
- model_hooks.rdoc
- opening_databases.rdoc
- prepared_statements.rdoc
- querying.rdoc
- reflection.rdoc
- 1.0.txt
- 1.1.txt
- 1.3.txt
- 1.4.0.txt
- 1.5.0.txt
- 2.0.0.txt
- 2.1.0.txt
- 2.10.0.txt
- 2.11.0.txt
- 2.12.0.txt
- 2.2.0.txt
- 2.3.0.txt
- 2.4.0.txt
- 2.5.0.txt
- 2.6.0.txt
- 2.7.0.txt
- 2.8.0.txt
- 2.9.0.txt
- 3.0.0.txt
- 3.1.0.txt
- 3.10.0.txt
- 3.11.0.txt
- 3.12.0.txt
- 3.13.0.txt
- 3.14.0.txt
- 3.15.0.txt
- 3.16.0.txt
- 3.17.0.txt
- 3.18.0.txt
- 3.19.0.txt
- 3.2.0.txt
- 3.20.0.txt
- 3.21.0.txt
- 3.22.0.txt
- 3.23.0.txt
- 3.24.0.txt
- 3.25.0.txt
- 3.26.0.txt
- 3.27.0.txt
- 3.28.0.txt
- 3.29.0.txt
- 3.3.0.txt
- 3.30.0.txt
- 3.31.0.txt
- 3.32.0.txt
- 3.33.0.txt
- 3.4.0.txt
- 3.5.0.txt
- 3.6.0.txt
- 3.7.0.txt
- 3.8.0.txt
- 3.9.0.txt
- schema_modification.rdoc
- sharding.rdoc
- sql.rdoc
- testing.rdoc
- transactions.rdoc
- validations.rdoc
- virtual_rows.rdoc

### Class Index

Quicksearch

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- Sequel::Plugins::SerializationModificationDetection::InstanceMethods
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- Sequel::Plugins::Subclasses
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- Sequel::Plugins::Tree::SingleRoot::InstanceMethods
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- Sequel::Postgres
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- Sequel::PrettyTable
- Sequel::Progress
- Sequel::Progress::DatabaseMethods
- Sequel::Progress::DatasetMethods
- Sequel::Qualifier
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- Sequel::Rollback
- Sequel::SQL
- Sequel::SQL::AliasMethods
- Sequel::SQL::AliasedExpression
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- Sequel::SQL::Blob
- Sequel::SQL::BooleanConstant
- Sequel::SQL::BooleanExpression
- Sequel::SQL::BooleanMethods
- Sequel::SQL::CaseExpression
- Sequel::SQL::Cast
- Sequel::SQL::CastMethods
- Sequel::SQL::ColumnAll
- Sequel::SQL::ComplexExpression
- Sequel::SQL::ComplexExpressionMethods
- Sequel::SQL::Constant
- Sequel::SQL::Constants
- Sequel::SQL::Expression
- Sequel::SQL::Function
- Sequel::SQL::GenericComplexExpression
- Sequel::SQL::GenericExpression
- Sequel::SQL::Identifier
- Sequel::SQL::IdentifierMethods
- Sequel::SQL::InequalityMethods
- Sequel::SQL::JoinClause
- Sequel::SQL::JoinOnClause
- Sequel::SQL::JoinUsingClause
- Sequel::SQL::NegativeBooleanConstant
- Sequel::SQL::NoBooleanInputMethods
- Sequel::SQL::NumericExpression
- Sequel::SQL::NumericMethods
- Sequel::SQL::OrderMethods
- Sequel::SQL::OrderedExpression
- Sequel::SQL::PlaceholderLiteralString
- Sequel::SQL::QualifiedIdentifier
- Sequel::SQL::QualifyingMethods
- Sequel::SQL::StringConcatenationMethods
- Sequel::SQL::StringExpression
- Sequel::SQL::StringMethods
- Sequel::SQL::Subscript
- Sequel::SQL::SubscriptMethods
- Sequel::SQL::ValueList
- Sequel::SQL::ValueList
- Sequel::SQL::VirtualRow
- Sequel::SQL::Window
- Sequel::SQL::WindowFunction
- Sequel::SQLTime
- Sequel::SQLite
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- Sequel::SQLite::DatasetMethods
- Sequel::Schema
- Sequel::Schema::AlterTableGenerator
- Sequel::Schema::Generator
- Sequel::ServerBlock
- Sequel::ShardedSingleConnectionPool
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- Sequel::SimpleMigration
- Sequel::SingleConnectionPool
- Sequel::Swift
- Sequel::Swift::Database
- Sequel::Swift::Dataset
- Sequel::Swift::MySQL
- Sequel::Swift::MySQL::DatabaseMethods
- Sequel::Swift::MySQL::Dataset
- Sequel::Swift::Postgres
- Sequel::Swift::Postgres::AdapterMethods
- Sequel::Swift::Postgres::DatabaseMethods
- Sequel::Swift::Postgres::Dataset
- Sequel::Swift::SQLite
- Sequel::Swift::SQLite::DatabaseMethods
- Sequel::Swift::SQLite::Dataset
- Sequel::ThreadLocalTimezones
- Sequel::ThreadedConnectionPool
- Sequel::ThreadedServerBlock
- Sequel::TimestampMigrator
- Sequel::Timezones
- Sequel::TinyTDS
- Sequel::TinyTDS::Database
- Sequel::TinyTDS::Dataset
- Sequel::TinyTDS::Dataset::ArgumentMapper
- Sequel::TinyTDS::Dataset::PreparedStatementMethods
- Sequel::ToDot
- Sequel::UnbindDuplicate
- Sequel::Unbinder
- Sequel::UndefinedAssociation
- Sequel::UnthreadedServerBlock
- Sequel::ValidationFailed
- Dataset
- Dataset::ArgumentMapper
- Dataset::BindArgumentMethods
- Dataset::PreparedStatementMethods
- String
- String::Inflections
- Array
- FalseClass
- Hash
- NilClass
- Numeric
- Object
- PGconn
- PGresult
- Proc
- Symbol
- TrueClass

No matching classes.

# Sequel::TinyTDS::Database

### Public Instance Methods

connect(server) click to toggle source

Transfer the :host and :user options to the :dataserver and :username options.

        # File lib/sequel/adapters/tinytds.rb, line 12
    12:       def connect(server)
    13:         opts = server_opts(server)
    14:         opts[:username] = opts[:user]
    15:         set_mssql_unicode_strings
    16:         TinyTds::Client.new(opts)
    17:       end

execute(sql, opts={}) click to toggle source

Execute the given `sql` on the server. If the :return option is present, its value should be a method symbol that is called on the TinyTds::Result object returned from executing the `sql`. The value of such a method is returned to the caller. Otherwise, if a block is given, it is yielded the result object. If no block is given and a :return is not present, `nil` is returned.

        # File lib/sequel/adapters/tinytds.rb, line 25
    25:       def execute(sql, opts={})
    26:         synchronize(opts[:server]) do |c|
    27:           begin
    28:             m = opts[:return]
    29:             r = nil
    30:             if (args = opts[:arguments]) && !args.empty?
    31:               types = []
    32:               values = []
    33:               args.each_with_index do |(k, v), i|
    34:                 v, type = ps_arg_type(v)
    35:                 types << "@#{k} #{type}"
    36:                 values << "@#{k} = #{v}"
    37:               end
    38:               case m
    39:               when :do
    40:                 sql = "#{sql}; SELECT @@ROWCOUNT AS AffectedRows"
    41:                 single_value = true
    42:               when :insert
    43:                 sql = "#{sql}; SELECT CAST(SCOPE_IDENTITY() AS bigint) AS Ident"
    44:                 single_value = true
    45:               end
    46:               sql = "EXEC sp_executesql N'#{c.escape(sql)}', N'#{c.escape(types.join(', '))}', #{values.join(', ')}"
    47:               log_yield(sql) do
    48:                 r = c.execute(sql)
    49:                 r.each{|row| return row.values.first} if single_value
    50:               end
    51:             else
    52:               log_yield(sql) do
    53:                 r = c.execute(sql)
    54:                 return r.send(m) if m
    55:               end
    56:             end
    57:             yield(r) if block_given?
    58:           rescue TinyTds::Error => e
    59:             raise_error(e, :disconnect=>!c.active?)
    60:           ensure
    61:            r.cancel if r && c.sqlsent?
    62:           end
    63:         end
    64:       end

execute_ddl(sql, opts={}) click to toggle source

Execute the DDL `sql` on the database and return nil.

        # File lib/sequel/adapters/tinytds.rb, line 78
    78:       def execute_ddl(sql, opts={})
    79:         execute(sql, opts.merge(:return=>:each))
    80:         nil
    81:       end

execute_dui(sql, opts={}) click to toggle source

Return the number of rows modified by the given `sql`.

        # File lib/sequel/adapters/tinytds.rb, line 67
    67:       def execute_dui(sql, opts={})
    68:         execute(sql, opts.merge(:return=>:do))
    69:       end

execute_insert(sql, opts={}) click to toggle source

Return the value of the autogenerated primary key (if any) for the row inserted by the given `sql`.

        # File lib/sequel/adapters/tinytds.rb, line 73
    73:       def execute_insert(sql, opts={})
    74:         execute(sql, opts.merge(:return=>:insert))
    75:       end

### Private Instance Methods

column_list_sql(g) click to toggle source

For some reason, unless you specify a column can be NULL, it assumes NOT NULL, so turn NULL on by default unless the column is a primary key column.

        # File lib/sequel/adapters/tinytds.rb, line 88
    88:       def column_list_sql(g)
    89:         pks = []
    90:         g.constraints.each{|c| pks = c[:columns] if c[:type] == :primary_key}
    91:         g.columns.each{|c| c[:null] = true if !pks.include?(c[:name]) && !c[:primary_key] && !c.has_key?(:null) && !c.has_key?(:allow_null)}
    92:         super
    93:       end

database_error_classes() click to toggle source

tiny_tds uses TinyTds::Error as the base error class.

        # File lib/sequel/adapters/tinytds.rb, line 96
    96:       def database_error_classes
    97:         [TinyTds::Error]
    98:       end

disconnect_connection(c) click to toggle source

Close the TinyTds::Client object.

         # File lib/sequel/adapters/tinytds.rb, line 101
    101:       def disconnect_connection(c)
    102:         c.close
    103:       end

disconnect_error?(e, opts) click to toggle source

Return true if the :conn argument is present and not active.

         # File lib/sequel/adapters/tinytds.rb, line 106
    106:       def disconnect_error?(e, opts)
    107:         super || (opts[:conn] && !opts[:conn].active?)
    108:       end

ps_arg_type(v) click to toggle source

Return a 2 element array with the literal value and type to use in the prepared statement call for the given value and connection.

         # File lib/sequel/adapters/tinytds.rb, line 112
    112:       def ps_arg_type(v)
    113:         case v
    114:         when Fixnum
    115:           [v, 'int']
    116:         when Bignum
    117:           [v, 'bigint']
    118:         when Float
    119:           [v, 'double precision']
    120:         when Numeric
    121:           [v, 'numeric']
    122:         when Time
    123:           if v.is_a?(SQLTime)
    124:             [literal(v), 'time']
    125:           else
    126:             [literal(v), 'datetime']
    127:           end
    128:         when DateTime
    129:           [literal(v), 'datetime']
    130:         when Date
    131:           [literal(v), 'date']
    132:         when nil
    133:           ['NULL', 'nvarchar(max)']
    134:         when true
    135:           ['1', 'int']
    136:         when false
    137:           ['0', 'int']
    138:         when SQL::Blob
    139:           [literal(v), 'varbinary(max)']
    140:         else
    141:           [literal(v), 'nvarchar(max)']
    142:         end
    143:       end

Disabled; run with --debug to generate this.

[Validate]

Generated with the Darkfish Rdoc Generator 1.1.6.