# 21 Haziran 2007 Perşembe
I was about to cry after reading Scott Bellware's this post (via Roy). He says you can't develop OSS for Visual Studio because VSIP license prevents you to do so, which means my little ActiveWriter is kaboooom.

He's wrong. Well, the text he's referring to is a bit outdated. In the newer license, MS removed some clauses to make it more open source friendly, see this post for more info. In the comments of Bellware's post, Scott Guthrie also confirms that there's no restriction.

Frustration for a couple of seconds, then I'm happy again.

posted on 21 Haziran 2007 Perşembe 12:38:27 UTC  #   
# 14 Haziran 2007 Perşembe
Preview 3 has this functionality, but there are a few things to mention.

ActiveWriter use ActiveRecord assembly to generate NHibernate config files. So you'll need Castle.ActiveRecord.dll, NHibernate.dll and all necessary dependincies to make it work.



  1. Set the target to NHibernate
    This way, AW will generate .hbm.xml files for each entity in your model.
  2. Set the Assembly Path to where Castle.ActiveRecord.dll, NHibernate.dll and all necessary dependincies reside.
    The design decision was that, I didn't want to package these assemblies with AW. Rather than that, I thought user will most probably have them so they can choose whatever version they want to generate the configuration. If you don't supply the path, AW (VS, actually) will look for them in GAc and then {Your VS Path}\Common7\IDE\Castle.ActiveRecord.dll, so if you have them in one of those places, it should be fine.

    One other quirk is, if you first try to generate with the wrong path, setti ng the correct one later won't work until you restart Visual Studio. This is the framework's limitation, once you try to load an assembly and get an error, the result will be cached for subsequent tries. So VS appdomain should be restarted to make it work. I'll have a possible soliton for this for a future version of ActiveWriter (will try to load in a dummy appdomain, then in the VS appdomain)

    You may use the fully qualified assembly names for Active Record Assembly Name and NHibernate Assembly Name to target a specific version in the GAC, if you have more than one in there.
  3. When you save the model, AW will generate configuration.
I'll prepare a better documentation in the wiki.

Have fun.

Update:

AW does not work with release version of Castle assemblies (RC2?) for NHibernate generation, it works with the trunk (or with recently compiled assemblies). You can use the latest bits from the build server: http://builds.castleproject.org/cruise/index.castle
posted on 14 Haziran 2007 Perşembe 11:46:32 UTC  #   

This was sitting on the trunk for a while because of a bug in NHibernate config generation. I believe it's fixed now, so let's see if it works :)

First of all, this release is trying to be compatible with Castle trunk, it may generate code usable by released Castle components but it follows recent changes (might miss a few days). You know, Castle will be 1.0 one day and ActiveWriter will be a release, not a preview, in that day.

And I'm trying create some documentation on using.castleproject.org (Castle's wiki) to make Hammett stop whining about the lack of documentation of contrib projects (kidding!). If you're using ActiveWriter and want to share your tips, tricks, workarounds or anything about it, it would be great if you contribute to the documentation.

The most important update is the direct NHibernate configuration support. Now you can instruct ActiveWriter to generate NHibernate configuration files (.hbm.xml) for each entity in your model. Generated classes won't have ActiveRecord attributes in this case. More on this in a later post (Update: here).



Another interesting change is the use of Castle.Components.Validator instead of the ActiveRecord validators. AR changed in the trunk to use it, so does ActiveWriter.



One more exiciting news is, you can drag tables of MySQL from Server Explorer onto the modelin surface (see Michael's patch below).

Full list of changes below. A big thanks to all who sent patches, ideas and bug reports.

New:
  • Now optionally generates NHibernate hbm.xml files.
  • Namespace in generated code is now customizable (Idea: Robert van Hoornaar)
  • Imports in generated code is now customizable (Idea: Robert van Hoornaar)
  • Model classes can override model level base class definition. (Patch: Robert van Hoornaar)
  • Model classes can override model level generics generation. (Idea: Robert van Hoornaar)
  • Contrib-26: Add support for AR Nested / NH Component mappings. Allow the ability to specify a column prefix for active record. (thx: Adam Tybor)
  • Optionally generates classes implementing INotifyPropertyChanged.
  • Support for drag-drop from Server Explorer for MySQL databases. Requires MySQL Connector/Net (5.1) (included). (Patch: Michael Morton)
  • Support for custom types through IUserType. See http://support.castleproject.org/browse/CONTRIB-28#action_11456 for usage. (Patch: Ricardo Stuven)
  • Ability to define a nested class with a different property name than the nested class (Idea: Craig Neuwirt)
Fixed:
  • Contrib-23: Produces CascadeEnum instead of ManyRelationCascadeEnum
  • Ability to generate virtual properties to support Lazy properly (thx: Ayende)
  • Make sure that Char and AnsiChar types are treated as a System.String types, instead of System.Char types (patch: Ayende)
  • HasAndbelongToMany does not take custom property names and not found behavior into account.
  • Can’t add a Many To Many relationship to 2 entities when the Class and Table names are different.
  • Column keys in many-to-one relations is not optional. (Patch: Robert van Hoornaar)
  • Partially fixing NHibernate code generation errors. Now works with a workaround.
  • Nullable types only when NotNull=false (Patch: Ricardo Stuven)
  • Changed to Castle.Components.Validator
And just one more thing. Someone asked me if ActiveWriter is a competitor for Linq to SQL. AW is just a servent of the heavyweight champion, NHibernate/AR combo. Linq to SQL is competing with NHibernate. I didn't have time to examine Linq to SQL designer, but it's built using DSL Tools just like ActiveWriter so some functionality should be alike. Other than that it's the framework, not the tools, important.
posted on 14 Haziran 2007 Perşembe 08:29:25 UTC  #