Class: ActiveRecord::ConnectionAdapters::FirebirdAdapter

Inherits:
AbstractAdapter
  • Object
show all
Includes:
ActiveRecord::ConnectionAdapters::Firebird::DatabaseLimits, ActiveRecord::ConnectionAdapters::Firebird::DatabaseStatements, ActiveRecord::ConnectionAdapters::Firebird::Quoting, ActiveRecord::ConnectionAdapters::Firebird::SchemaStatements
Defined in:
lib/active_record/connection_adapters/firebird_adapter.rb

Constant Summary collapse

ADAPTER_NAME = 
"Firebird".freeze
DEFAULT_ENCODING = 
"Windows-1252".freeze

Instance Method Summary collapse

Instance Method Details

#active? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/active_record/connection_adapters/firebird_adapter.rb', line 29

def active?
  return false unless @connection.open?

  @connection.query("SELECT 1 FROM RDB$DATABASE")
  true
rescue
  false
end

#arel_visitor ⇒ Object 



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# File 'lib/active_record/connection_adapters/firebird_adapter.rb', line 21

def arel_visitor
  @arel_visitor ||= Arel::Visitors::Firebird.new(self)
end

#disconnect! ⇒ Object 



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# File 'lib/active_record/connection_adapters/firebird_adapter.rb', line 43

def disconnect!
  super
  @connection.close rescue nil
end

#encoding ⇒ Object 



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# File 'lib/active_record/connection_adapters/firebird_adapter.rb', line 70

def encoding
  @connection.encoding
end

#log(sql, name = "SQL", binds = [], type_casted_binds = [], statement_name = nil) ⇒ Object

:doc:



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# File 'lib/active_record/connection_adapters/firebird_adapter.rb', line 74

def log(sql, name = "SQL", binds = [], type_casted_binds = [], statement_name = nil) # :doc:
  sql = sql.encode('UTF-8', encoding) if sql.encoding.to_s == encoding
  super
end

#prefetch_primary_key?(table_name = nil) ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/active_record/connection_adapters/firebird_adapter.rb', line 25

def prefetch_primary_key?(table_name = nil)
  true
end

#primary_keys(table_name) ⇒ Object

Raises:

  • (ArgumentError) 


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# File 'lib/active_record/connection_adapters/firebird_adapter.rb', line 52

def primary_keys(table_name)
  raise ArgumentError unless table_name.present?

  names = query_values(<<~SQL, "SCHEMA")
    SELECT
      s.rdb$field_name
    FROM
      rdb$indices i
      JOIN rdb$index_segments s ON i.rdb$index_name = s.rdb$index_name
      LEFT JOIN rdb$relation_constraints c ON i.rdb$index_name = c.rdb$index_name
    WHERE
      i.rdb$relation_name = '#{table_name.upcase}'
      AND c.rdb$constraint_type = 'PRIMARY KEY';
  SQL

  names.map(&:strip).map(&:downcase)
end

#reconnect! ⇒ Object 



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# File 'lib/active_record/connection_adapters/firebird_adapter.rb', line 38

def reconnect!
  disconnect!
  @connection = ::Fb::Database.connect(@config)
end

#reset! ⇒ Object 



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# File 'lib/active_record/connection_adapters/firebird_adapter.rb', line 48

def reset!
  reconnect!
end

#supports_foreign_keys? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/active_record/connection_adapters/firebird_adapter.rb', line 79

def supports_foreign_keys?
  true
end