From: "Jon A. Lambert" <jlsysinc@...>
Date: 2006-03-18T01:31:41+09:00
Subject: sqlite3-ruby bug

Sane as earlier post.   Code to reproduce different.

This is using sqlite3-ruby (1.1.0)

----------
require 'sqlite3'
require 'pp'
require 'base64'

def self.decode(str)
  Marshal.load(Base64.decode64(str))
end
def self.encode(obj)
  Base64.encode64(Marshal.dump(obj)).strip
end
class Foo
end
db = SQLite3::Database.open("test.sqlite3")
begin
  db.execute("drop table test;")
rescue Exception
end
db.execute("create table test (id integer primary key, data object);")
db.type_translation = true
db.translator.add_translator("object") {|type, value|
  decode value
}
db.execute("insert into test values (1, ?);", encode(Foo.new))
db.execute("select * from test;") do |row|
  pp row
end
#db.type_translation = false           <===== uncomment to make work
pp db.execute("pragma table_info(test)")  <======= bug here
db.table_info("test") do |row|     <===== and here
  pp row
end
----------

[1, #<Foo:0x2c26e68>]
C:/apps/ruby/lib/ruby/gems/1.8/gems/sqlite3-ruby-1.1.0-mswin32/lib/sqlite3/translator.rb:85:in 
`type_name': undefined method `upcase' for nil:NilClass (NoMethodError)
 from 
C:/apps/ruby/lib/ruby/gems/1.8/gems/sqlite3-ruby-1.1.0-mswin32/lib/sqlite3/translator.rb:77:in 
`translate'
 from 
C:/apps/ruby/lib/ruby/gems/1.8/gems/sqlite3-ruby-1.1.0-mswin32/lib/sqlite3/resultset.rb:135:in 
`next'
 from 
C:/apps/ruby/lib/ruby/gems/1.8/gems/sqlite3-ruby-1.1.0-mswin32/lib/sqlite3/resultset.rb:134:in 
`next'
 from 
C:/apps/ruby/lib/ruby/gems/1.8/gems/sqlite3-ruby-1.1.0-mswin32/lib/sqlite3/resultset.rb:160:in 
`each'
 from 
C:/apps/ruby/lib/ruby/gems/1.8/gems/sqlite3-ruby-1.1.0-mswin32/lib/sqlite3/database.rb:215:in 
`execute'
 from 
C:/apps/ruby/lib/ruby/gems/1.8/gems/sqlite3-ruby-1.1.0-mswin32/lib/sqlite3/database.rb:186:in 
`prepare'
 from 
C:/apps/ruby/lib/ruby/gems/1.8/gems/sqlite3-ruby-1.1.0-mswin32/lib/sqlite3/database.rb:210:in 
`execute'
 from C:/work/teensymud/trunk/testsql.rb:28

Tool completed with exit code 1


Switching type_translation off allows pragma to work.

--
J. Lambert