Uriel Katz Blog

Getting your dear .py files from .pyc files

Today happened something really strange,i was looking at this blog source code to take some code to use in other site and i notice there is no urls.py(the routing file in django) file,so i wondered how this is working?!

a quick look at the folder(both local/svn and server) showed that there is only a urls.pyc file,so now i need to recover my source file from a bytecode file. searching in google gave me a tool called decompyle but it wasn`t working yelling something about a bad magic number(i guess it didn`t support python 2.5),so i looked around ...

Back to linux on my laptop

Well after more than a year with Vista in my laptop,i am happy to get back to Linux land. I used Vista for the reason it could use all of my 4GB(and it used alot of it).

I personally hate Vista,it is a unfinished version of windows that took years to develop,so after getting some really weird problems with application crashing all the time and trying to fix this for few hours I tried to install Windows XP but to my surprise my laptop(HP dv9925nr with 4GB RAM) isn`t supported by HP in Windows XP so there ...

Why JavaScript is NOT the new Assembly

There is a bunch of people in the internet saying that JavaScript is the new Assembly(in the sense that developers shouldn`t write JavaScript directly and instead use some sort of compiler like GWT).

I totally disagree with that,first of all i think JavaScript is a great language,it is dynamic and have a compact syntax.

The reason that most of the people don`t use Assembly is that there is no benefit in speed compared to the time it takes you to write the same code in C or even in higher level languages. JavaScript is a ...

JStORM supports Mozilla Rhino!

Thanks to Christopher Thatcher,JStORM now fully supports Mozilla Rhino,using JDBC to connect to either SQLite or MySQL.

There were few difficulties when trying to adapt JStORM to work with Rhino,for some reason Rhino doesn`t enumerate object properties in the order they were declared,that is the reason that tests have a number prefix.

Other problem was that Rhino doesn`t let you change the function name property which hold the name of the function,the problem was that i was keeping the table name on the model in a property called name,the fix was just to not use ...

JStORM supports Classic ASP

Just wanted to announce that JStORM now supports Classic ASP,with support for SQL Server and Access(with a bug that still need to be fixed).

I hope that this will make easier to maintain those old ASP sites that aren`t willing to die ;)

The support is in the trunk

P.S.: a special thanks goes to Nathan Smith for writing this code!

JStORM supports Adobe AIR!

i wanted to see how much time(and changes to the code) it will take me to add a Adobe AIR support,so i tried it today and it took me 2 hours(!) to add a full support for Adobe AIR with minimal code change!

the only thing that doesn`t work is introspection since AIR doesn`t have the sqlite_master table(which is the sqlite standard) you can see the bug here

the support is in the svn trunk.

Introducing JStORM

UPDATE:Adobe AIR support is in svn trunk

I am happy to announce the first beta of JStORM,a complete rewrite of GearsORM to support multiple backends,currently supporting Jaxer(MySQL and Sqlite) and Google Gears(Sqlite).

This version is a complete rewrite of GearsORM,it changed the way it works internally and also the API.

The first change is that every model have it own connection to the database,this is in order to enable different models connected to different databases.

Another interesting change is the JStORM.Query class,this class allows for easily querying the models.
a query instance can ...

Google Gears ORM v0.2

UPDATE:a new version is here.

New features in this version:

transactions - used inside GearsORM itself
self relations(i.e. a relation to the same table/model) - very useful when working with Tree-like structures in the database
count method - so now u can do Person.count() instead of Person.select().toArray().length

The most important update in this version is of course transaction support.
SQLite is known for really bad write preformence when not working with transactions.
While developing transaction support for GearsORM i had to write a test,in that test it execute 100 inserts and 100 updates,this test ...

Google Gears ORM v0.1.1

UPDATE:a new version is here.

this is a minor update to GearsORM that fixes two bugs,one small bug reported by Evgeny Tyazhev and other known bug in which m2m tables forigen keys aren`t enforced.

another nice thing is a new utility class(or should i say object) GearsORM.Introspection which contain a model(sqliteMasterModel) which maps to sqlite_master table which provide information about the schema,also there is a function GearsORM.Introspection.doesTableExist used to check if a table exist when creating m2m triggers.

in this version i moved from JSDoc to NaturalDocs and added a auto-generated documentaion,also i ...

Google Gears ORM v0.1

UPDATE:a new version is here.

So after more than a month since i released a proof of concept of a ORM for Google Gears,i am happy to release the first(official) version of GearsORM .

This is a complete rewrite of the code,this version support relations(both many to one and many to many with automatic table creation),easy loading and saving objects from JSON,real foreign keys(SQLite doesn`t support them) using triggers and many more stuff.

Since i am a big fan of examples i will try to show the new api by a example(the code is ...