RoR Calling Oracle Function/Procedure

Question

Hello,
Has anyone got experience of calling an Oracle Function or Procedure from RoR?
thanks
David

Answer 1

Hello for calling function/procedure at RoR in Oracle I write muself classes and use they.
Module:
module SQLStatement
class NoTypeResult < StandardError
end # class
class SQLProc
attr_accessor :name, :arguments
def initialize( args = nil )
@name = args[:name] unless args[:name].nil?
@arguments = args[:arguments] unless args[:arguments].nil?
@conn = ActiveRecord::Base.connection.raw_connection
end # def initialize
def exec( args = nil )
unless args.nil? || ( !args.is_a? Hash )
args.each { |k, v| @arguments[k.to_s.intern] = args[k] }
end # unless
func_args = ''
@arguments.each { |k, v| func_args += "#{func_args == '' ? '' : ', '}#{k.to_s} => :#{k.to_s}"}
sql = "BEGIN {#@name}( #{func_args} );END;"
cursor = @conn.parse( sql )
@arguments.each do |k, v|
cursor.bind_param( ":#{k.to_s}", v )
end # each
cursor.exec()
end # def exec
end # class SQLProc
class SQLFunc < SQLProc
attr_reader :result
attr_accessor :result_type
def initialize( args = nil )
@result_type = args[:result_type] unless args[:result_type].nil?
super( args )
end # def
def exec( args = nil )
if @result_type.nil?
raise NoTypeResult, 'No type for result setting', caller
end # if
unless args.nil? || ( !args.is_a? Hash )
args.each { |k, v| @arguments[k.to_s.intern] = args[k] }
end # unless
func_args = ''
@arguments.each { |k, v| func_args += "#{func_args == '' ? '' : ', '}#{k.to_s} => :#{k.to_s}"}
sql = "BEGIN :result := #{@name}( #{func_args} );END;"
cursor = @conn.parse( sql )
@arguments.each do |k, v|
cursor.bind_param( ":#{k.to_s}", v )
end # each
cursor.bind_param( ":result", nil, @result_type )
cursor.exec()
@result = cursor[':result']
cursor
end # def exec
end # class
end # module SQLStatment
Example of use:
function = SQLStatement::SQLFunc.new(
:name => 'f_test_ins',
:result_type => Fixnum,
:arguments => {
:login =>'asdf',
:password => 'asdf',
:email => '[email protected]'
function.exec
raise function.result.inspect