Class ActiveRecord::ConnectionAdapters::OpenBaseAdapter
In: vendor/rails/activerecord/lib/active_record/connection_adapters/openbase_adapter.rb
Parent: AbstractAdapter

The OpenBase adapter works with the Ruby/Openbase driver by Tetsuya Suzuki. www.spice-of-life.net/ruby-openbase/ (needs version 0.7.3+)

Options:

  • :host — Defaults to localhost
  • :username — Defaults to nothing
  • :password — Defaults to nothing
  • :database — The name of the database. No default, must be provided.

The OpenBase adapter will make use of OpenBase‘s ability to generate unique ids for any column with an unique index applied. Thus, if the value of a primary key is not specified at the time an INSERT is performed, the adapter will prefetch a unique id for the primary key. This prefetching is also necessary in order to return the id after an insert.

Caveat: Operations involving LIMIT and OFFSET do not yet work!

Maintainer: derrickspell@cdmplus.com

Methods

External Aliases

update -> delete

Public Instance methods

[Source]

    # File vendor/rails/activerecord/lib/active_record/connection_adapters/openbase_adapter.rb, line 60
60:       def adapter_name
61:         'OpenBase'
62:       end

DATABASE STATEMENTS ======================================

[Source]

     # File vendor/rails/activerecord/lib/active_record/connection_adapters/openbase_adapter.rb, line 124
124:       def add_limit_offset!(sql, options) #:nodoc
125:         if limit = options[:limit]
126:           unless offset = options[:offset]
127:             sql << " RETURN RESULTS #{limit}"
128:           else
129:             limit = limit + offset
130:             sql << " RETURN RESULTS #{offset} TO #{limit}"
131:           end
132:         end
133:       end

[Source]

    # File vendor/rails/activerecord/lib/active_record/connection_adapters/openbase_adapter.rb, line 64
64:       def native_database_types
65:         {
66:           :primary_key => "integer UNIQUE INDEX DEFAULT _rowid",
67:           :string      => { :name => "char", :limit => 4096 },
68:           :text        => { :name => "text" },
69:           :integer     => { :name => "integer" },
70:           :float       => { :name => "float" },
71:           :datetime    => { :name => "datetime" },
72:           :timestamp   => { :name => "timestamp" },
73:           :time        => { :name => "time" },
74:           :date        => { :name => "date" },
75:           :binary      => { :name => "object" },
76:           :boolean     => { :name => "boolean" }
77:         }
78:       end

[Source]

    # File vendor/rails/activerecord/lib/active_record/connection_adapters/openbase_adapter.rb, line 92
92:       def next_sequence_value(sequence_name)
93:         ary = sequence_name.split(' ')
94:         if (!ary[1]) then
95:           ary[0] =~ /(\w+)_nonstd_seq/
96:           ary[0] = $1
97:         end
98:         @connection.unique_row_id(ary[0], ary[1])
99:       end

[Source]

    # File vendor/rails/activerecord/lib/active_record/connection_adapters/openbase_adapter.rb, line 84
84:       def prefetch_primary_key?(table_name = nil)
85:         true
86:       end

QUOTING ==================================================

[Source]

     # File vendor/rails/activerecord/lib/active_record/connection_adapters/openbase_adapter.rb, line 104
104:       def quote(value, column = nil)
105:         if value.kind_of?(String) && column && column.type == :binary
106:           "'#{@connection.insert_binary(value)}'"
107:         else
108:           super
109:         end
110:       end

[Source]

     # File vendor/rails/activerecord/lib/active_record/connection_adapters/openbase_adapter.rb, line 116
116:       def quoted_false
117:         "0"
118:       end

[Source]

     # File vendor/rails/activerecord/lib/active_record/connection_adapters/openbase_adapter.rb, line 112
112:       def quoted_true
113:         "1"
114:       end

[Source]

    # File vendor/rails/activerecord/lib/active_record/connection_adapters/openbase_adapter.rb, line 80
80:       def supports_migrations?
81:         false
82:       end

[Validate]