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Section: development
Spent my day on Erlang-Ruby-Marshal today ;-)
In a nutshell, it adds support for unmarshaling 1.9 strings, and implements the last missing type (TYPE_LINK) that was missing from the code. Tests still lack, can someone help ? :-)
Added TYPE_LINK, needed because of how ruby 1.9 marshals strings.
In 1.9, Ruby marshals the string encoding in the binary output, and
uses an Ivar construct (TYPE_IVAR) to wrap the string and adds an
"encoding" instance variable (notice: without a leading @) whose
value is the encoding itself.
While the Ivar code worked correctly, the values of the encodings
are actually *strings*, that are being reused via the TYPE_LINK
construct, that wasn't implemented.
So, the get() and put() primitives are being used to store not
only tuples {id, sym} for symbols, but now store either
{{symbol, ID}, sym}
OR
{{value, ID}, val}
for the other types that use TYPE_LINK.
By reading the ruby marshal.c source code, it looks like that MANY
data types save their values in the arg->data hashtable, but by
inspecting the binary marshal output of, e.g, an array of floats,
links aren't used.
Thus, in this unmarshaler, links are considered, for now, only for
strings and regexes.
Fork me on GitHub: http://github.com/vjt/erlang-ruby-marshal
CouchDB 0.11 Invalid UTF-8 JSON: Solved
If your CouchDB 0.11 gives you the “Invalid UTF-8 JSON” error on every POST or PUT you issue to it, make sure that in your $prefix/usr/lib/couchdb/erlang/lib there aren’t leftovers from previous installations.
On our dev server, I found there two directories (“couch-0.10” and “mochiweb-r97“) from the old 0.10 setup that were causing this issue.
This applies if you upgraded from source, as you’ve probably did, because there aren’t too many packages of CouchDB 0.11 as of April 2010 :-).
Huge thanks to @couchdb for hinting me in the right direction after reading a report on the dev mailing list but I didn’t want to “remove and reinstall” because I like to understand what’s going on ;-).
Footnote: could this be the end of Hiatus? I hope so ;-p
Rails3: Better, Faster, Stronger
For those who understand italian, I’ve just published an article on therubymine.com on the upcoming Ruby on Rails framework release, version 3.0: the big news is the merger with another ruby web framework, merb.
Have a nice read! :-)
http://therubymine.com/2009/06/04/rails3-better-faster-stronger/
E-Privacy 2009: Towards Global Control
The Recipe
Ingredients
- The 2009 social environment
- A bunch of hackers
- Some competent lawyers
- A Google Spokesman
- The Big Brother Awards
- A consistent amount of paranoia
Preparation
Take the whole social environment, utterly unprepared to the media \(r)evolution happening in the last years, and let the hackers observe and talk/write about it. Bring in the lawyers, and let them recognize that “Houston! We’ve got a problem!”, whilst also they define it via lawspeak. Ask questions, and participate to interesting debates.
Now, deliver the 2007 big brother award to the Google Representative, let the sun dive in the hills, add a noticeable amount of Tuscany red wine, and get ready for the next day. Let the paranoia flow, while the hackers show how you can be traced and found via the cellular network and spied via wifi-networked cameras placed there for your safety.
Watch the undelivered Big Brother Awards 2009 sit on the speakers’ desk and suddenly put on sale on ebay, and go back home, where you read about, and watch, a video-edited interview to the italian PM.
Put everything into the fridge, and give your brain two days to metabolize it. Then write it all LOUD [ .. ]
Facebook Developer Garage 2009, Milan (Italy)
This is my recap of the first italian facebook developer garage, held in milan on April 23, 2009, and hosted by mikamai. The morning has been dedicated to developer sessions, the afternoon to marketing & communication ones. Some videos of the event are available here.
Morning: developer session
The first talk was held by James Leszczenski, facebook engineer, who presented the connect platform vision, mission, and values. interesting, besides the talk, for user participation: the audience was deeply interested about which information they get from facebook, how should they handle it, and which means connect does provide to match identities and find friends on an enabled web site.
Later I had the occasion to ask James about whether FB was inclined or not to adopt OpenID as an authentication method: [ ... ]
