Class: Sequel::Oracle::Database

Inherits:
Database show all
Includes:
DatabaseMethods
Defined in:
lib/sequel/adapters/oracle.rb

Constant Summary collapse

CONNECTION_ERROR_CODES =

ORA-00028: your session has been killed ORA-01012: not logged on ORA-03113: end-of-file on communication channel ORA-03114: not connected to ORACLE

[ 28, 1012, 3113, 3114 ]

Constants inherited from Database

Database::ADAPTERS, Database::AUTOINCREMENT, Database::CASCADE, Database::COMMA_SEPARATOR, Database::NOT_NULL, Database::NO_ACTION, Database::NULL, Database::PRIMARY_KEY, Database::RESTRICT, Database::SET_DEFAULT, Database::SET_NULL, Database::SQL_BEGIN, Database::SQL_COMMIT, Database::SQL_ROLLBACK, Database::TYPES, Database::UNDERSCORE, Database::UNIQUE, Database::UNSIGNED

Instance Attribute Summary

Attributes inherited from Database

#default_schema, #loggers, #opts, #pool, #prepared_statements

Instance Method Summary collapse

Methods included from DatabaseMethods

#table_exists?, #tables

Methods inherited from Database

#<<, #>>, #[], adapter_class, adapter_scheme, #add_column, #add_index, #alter_table, #alter_table_sql, #alter_table_sql_list, #auto_increment_sql, #call, #column_definition_sql, #column_list_sql, #column_references_sql, connect, #constraint_definition_sql, #create_or_replace_view, #create_table, #create_table!, #create_table_sql_list, #create_view, #default_index_name, #disconnect, #drop_column, #drop_index, #drop_index_sql, #drop_table, #drop_table_sql, #drop_view, #execute_ddl, #execute_dui, #execute_insert, #fetch, #filter_expr, #from, #get, #identifier_input_method, identifier_input_method, #identifier_input_method=, identifier_input_method=, #identifier_output_method, identifier_output_method, #identifier_output_method=, identifier_output_method=, #index_definition_sql, #index_list_sql_list, #initialize, #inspect, #literal, #log_info, #logger, #logger=, #multi_threaded?, #on_delete_clause, #query, #quote_identifier, #quote_identifiers=, quote_identifiers=, #quote_identifiers?, #quote_schema_table, #rename_column, #rename_table, #rename_table_sql, #schema, #schema_utility_dataset, #select, #serial_primary_key_options, #set_column_default, #set_column_type, single_threaded=, #single_threaded?, #synchronize, #table_exists?, #test_connection, #typecast_value, #upcase_identifiers=, upcase_identifiers=, #upcase_identifiers?, #uri, #url

Methods included from Metaprogramming

#meta_def

Constructor Details

This class inherits a constructor from Sequel::Database

Instance Method Details

#connect(server) ⇒ Object 



16
17
18
19
20
21
22
23
24
25
26
27
28
 
# File 'lib/sequel/adapters/oracle.rb', line 16

def connect(server)
  opts = server_opts(server)
  if opts[:database]
    dbname = opts[:host] ? \
      "//#{opts[:host]}#{":#{opts[:port]}" if opts[:port]}/#{opts[:database]}" : opts[:database]
  else
    dbname = opts[:host]
  end
  conn = OCI8.new(opts[:user], opts[:password], dbname, opts[:privilege])
  conn.autocommit = true
  conn.non_blocking = true
  conn
end

#dataset(opts = nil) ⇒ Object 



30
31
32
 
# File 'lib/sequel/adapters/oracle.rb', line 30

def dataset(opts = nil)
  Oracle::Dataset.new(self, opts)
end

#execute(sql, opts = {}) ⇒ Object Also known as: do 



62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
 
# File 'lib/sequel/adapters/oracle.rb', line 62

def execute(sql, opts={})
  log_info(sql)
  synchronize(opts[:server]) do |conn|
    begin
      r = conn.exec(sql)
      yield(r) if block_given?
      r
    rescue OCIException => e
      if CONNECTION_ERROR_CODES.include?(e.code)  
        raise(Sequel::DatabaseDisconnectError)              
      else
        raise
      end
    end
  end
end

#schema_parse_table(table, opts = {}) ⇒ Object 



34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
 
# File 'lib/sequel/adapters/oracle.rb', line 34

def schema_parse_table(table, opts={})
  ds = dataset
  ds.identifier_output_method = :downcase
  schema, table = schema_and_table(table)
  table_schema = []
  metadata = transaction(opts){|conn| conn.describe_table(table.to_s)}
  metadata.columns.each do |column|
    table_schema << [
      column.name.downcase.to_sym,
      {
        :type => column.data_type,
        :db_type => column.type_string.split(' ')[0],
        :type_string => column.type_string,
        :charset_form => column.charset_form,
        :char_used => column.char_used?,
        :char_size => column.char_size,
        :data_size => column.data_size,
        :precision => column.precision,
        :scale => column.scale,
        :fsprecision => column.fsprecision,
        :lfprecision => column.lfprecision,
        :allow_null => column.nullable?
      }
    ]
  end
  table_schema
end

#transaction(opts = {}) ⇒ Object 



80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
 
# File 'lib/sequel/adapters/oracle.rb', line 80

def transaction(opts={})
  unless opts.is_a?(Hash)
    Deprecation.deprecate('Passing an argument other than a Hash to Database#transaction', "Use DB.transaction(:server=>#{opts.inspect})") 
    opts = {:server=>opts}
  end
  synchronize(opts[:server]) do |conn|
    return yield(conn) if @transactions.include?(Thread.current)
    conn.autocommit = false
    begin
      @transactions << Thread.current
      yield(conn)
    rescue => e
      conn.rollback
      raise e unless Error::Rollback === e
    ensure
      conn.commit unless e
      conn.autocommit = true
      @transactions.delete(Thread.current)
    end
  end
end