Hi, I would like to develop Redmine plugins using hobo.  I have developed 
some of them without using Hobo, but I would like to take profit of Hobo.

These are the results of some investigations:

1. *********** 
Redmine allow adding gems hobo_support and hobo_fields without problems. 
 Adding hobo or hobo_rapid throws an error.

---------------
Started GET "/" for 127.0.0.1 at 2013-12-06 17:53:10 +0000
Processing by WelcomeController#index as HTML
  Current user: txinto (id=3)
Redirected to http://localhost:3003/projects/gatatac-web/wiki/Wiki
Filter chain halted as :forward_to_startpage rendered or redirected
Completed 302 Found in 58.5ms (ActiveRecord: 4.8ms)
Started GET "/projects/gatatac-web/wiki/Wiki" for 127.0.0.1 at 2013-12-06 
17:53:10 +0000
Processing by WikiController#show as HTML
  Parameters: {"project_id"=>"gatatac-web", "id"=>"Wiki"}
  Current user: txinto (id=3)
  DRYML: Compiled 
/home/txinto/.rvm/gems/ruby-2.0.0-p247/gems/dryml-2.0.1/taglibs/core.dryml 
in 0.08s
Completed 500 Internal Server Error in 255.7ms

Dryml::DrymlException (No such taglib: taglibs/application 
{:src=>"taglibs/application", :template_dir=>".", :source_template=>""}):
  config/initializers/10-patches.rb:51:in `block in find_all'
  config/initializers/10-patches.rb:46:in `find_all'
  app/controllers/wiki_controller.rb:97:in `show'
------------------

Any information about solving this is welcome ;o)

2. *************
I managed to develop models using hobo and doing migrations, but there is 
problem with the different directories:
* When generating hobo_migration at rails   def self.down
    change_column :queries_roles, :query_id, :integer, :null => falseroot, 
tries to drop all the plugin tables (the plugins are in 
plugins/name_of_plugin/ directories, each plugin contains its own 
migrations, models, etc.
* It also wants to change all the *_id files to add a size limitation to 4 
bytes.
-----------
  def self.up

    change_column :queries_roles, :query_id, :integer, :limit => 4, :null 
=> true
....
  def self.down
    change_column :queries_roles, :query_id, :integer, :null => false
--------------
I solve this making a first migration at the rails directory level without 
dropping any plugin tables and forcing these :limit changes.  After that, 
on each hobo_migrations I have just to ignore all drop questions.

3. *****************

The way I managed to make Hobo useful is to generate the new plugin model 
at the rails level and then to move everything to plugin directory

* I generate (and don't migrate) the migration.
* I move all the generated files to plugins/my_plugin/ respective 
directories (test, db/migrate, models).
** I have to change the "require" sentence of the unit test to require 
File.expand_path('../../test_helper', __FILE__)

After that, everything works (please remember hobo_rapid is not included, 
so no views are available).  I can even execute the plugin migrations 
redmine migrations as usual.


4. *******************

I think that would be fantastic to introduce two options in the hobo 
generators:
* Hobo migration should "add" all the plugin migration files to the rails 
migrations before evaluating the changes to be done to the database (this 
will avoid trying to drop plugin tables).
* Hobo generators should have a way to determine the base directory for the 
generated model (f.i. a plugin in Rails is a subdirectory on the rails 
root, and a plugin on redmine is a subdirectory in the plugins folder).

Again, any information about how to make this is welcome.

Thanks a lot for your attention and for your support.

Best regards.

Tx.

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