eltiare

/opt/local/lib/ruby/gems/1.8/gems/merb-core-0.9.6/lib/merb-core/script.rb:67:in `-': can't convert nil into Array (TypeError)
	from /opt/local/lib/ruby/gems/1.8/gems/merb-core-0.9.6/lib/merb-core/script.rb:67:in `setup_local_gems'
	from /opt/local/lib/ruby/gems/1.8/gems/merb-core-0.9.6/lib/merb-core/script.rb:65:in `each'
	from /opt/local/lib/ruby/gems/1.8/gems/merb-core-0.9.6/lib/merb-core/script.rb:65:in `setup_local_gems'
	from /opt/local/lib/ruby/gems/1.8/gems/merb-core-0.9.6/lib/merb-core/script.rb:7:in `setup_local_gems!'
	from /opt/local/lib/ruby/gems/1.8/gems/merb-core-0.9.6/bin/merb:30
	from /opt/local/bin/merb:19:in `load'
	from /opt/local/bin/merb:19

eltiare

# In DM 0.9.7 ...

class Test
  include DataMapper::Resource

  property :id,          Integer,  :serial => true
  property :parent_id,   Integer,  :index => true

  has_1  :child, :class_name => 'Test', :parent_key => [:id], :child_key => [:parent_id]
end

eltiare

        def destroy
          sads = self_and_descendents
          hooks = self.class.const_get('INSTANCE_HOOKS')
          before_methods = hooks[:destroy][:before].map { |hash| hash[:name] }
          after_methods =  hooks[:destroy][:after].map  { |hash| hash[:name] }
          # Trigger all the before :destroy methods
          sads.each { |sad| before_methods.each { |bf| sad.send(bf) } }
          # dup is called here because destroy! likes to clear out the array, understandably.
          sads.dup.destroy!
          # Now go through after all the after :destroy methods.

eltiare

class Ad
  include DataMapper::Resource
  property :id,                 Integer,          :serial => true
  has n,  :counties, :class_name => 'Ads::Counties', :child_key => [:ad_id], :parent_key => [:id]
end

module Ads
  class Counties
    include DataMapper::Resource
    property :id,              Serial

eltiare

different prefix: "/" and "."
/opt/local/lib/ruby/1.8/pathname.rb:709:in `relative_path_from'
/opt/local/lib/ruby/gems/1.8/gems/merb-core-0.9.7/lib/merb-core/dispatch/default_exception/default_exception.rb:27:in `frame_details'
/opt/local/lib/ruby/gems/1.8/gems/merb-core-0.9.7/lib/merb-core/dispatch/default_exception/views/index.html.erb:66:in `__opt__local__lib__ruby__gems__1_8__gems__merb__core__0_9_7__lib__merb__core__dispatch__default__exception__views__index_html_erb'
/opt/local/lib/ruby/gems/1.8/gems/erubis-2.6.2/lib/erubis/evaluator.rb:82:in `each_with_index'
/opt/local/lib/ruby/gems/1.8/gems/merb-core-0.9.7/lib/merb-core/dispatch/default_exception/views/index.html.erb:65:in `each'
/opt/local/lib/ruby/gems/1.8/gems/merb-core-0.9.7/lib/merb-core/dispatch/default_exception/views/index.html.erb:65:in `each_with_index'
/opt/local/lib/ruby/gems/1.8/gems/merb-core-0.9.7/lib/merb-core/dispatch/default_exception/views/index.html.erb:65:in `__opt__local__lib__ruby__gems__1_8__gems__merb__core__0_9_7__lib

eltiare

#I'm trying to make a dynamic router in Merb based on information in the
#database.  Basically, I want the user to able to build their own URL
#"tree" with the home page being at the root.  If what the user wants is
#a single page in a location, getting this information is easy:  all one
#has to do is store the path in the database and retrieve it.  However,
#if one wants to be adding different types of functionality (such as a
#blog) to a certain part of the tree, it gets a lot trickier because you
#have the base path of the blog and then all the other paths that make
#the blog function such as:
#

eltiare

class Application < Merb::Controller
  override! :url
protected
  def url(*args)
    params[:_router].url(*args)
  end
end

eltiare

#This works:

    drop_class.class_eval do
      allowed_methods.each do |am|
        define_method am do
          @object.send(am)
        end
      end
    end

eltiare

Sample POST data (collected via Firebug): 
housed	1
housed[address]	
housed[age]	
housed[arrival_date]	2009-01-15
housed[cell_phone]	
housed[coming_by]	Car
housed[country]	
housed[custom_arrival_date]	
housed[custom_arrival_date]	

eltiare

Request Headers:
(Request-Line)	POST /houser_requests HTTP/1.1
Host	localhost:4000
User-Agent	Mozilla/5.0 (Macintosh; U; Intel Mac OS X 10.5; en-US; rv:1.9.0.4) Gecko/2008102920 Firefox/3.0.4
Accept	text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8
Accept-Language	en-us,en;q=0.5
Accept-Encoding	gzip,deflate
Accept-Charset	ISO-8859-1,utf-8;q=0.7,*;q=0.7
Keep-Alive	300
Connection	keep-alive