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@@ -1,3 +1,7 @@
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+*SVN* (version numbers are overrated)
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+
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+* (5 Oct 2006) Allow customization of #versions association options [Dan Peterson]
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+
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 *0.5.1*
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 * (8 Aug 2006) Versioned models now belong to the unversioned model.  @article_version.article.class => Article [Aslak Hellesoy]

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@@ -159,7 +159,8 @@ module ActiveRecord #:nodoc:
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           send :include, ActiveRecord::Acts::Versioned::ActMethods
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           cattr_accessor :versioned_class_name, :versioned_foreign_key, :versioned_table_name, :versioned_inheritance_column, 
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-            :version_column, :max_version_limit, :track_changed_attributes, :version_condition, :version_sequence_name, :non_versioned_columns
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+            :version_column, :max_version_limit, :track_changed_attributes, :version_condition, :version_sequence_name, :non_versioned_columns,
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+            :version_association_options
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           # legacy
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           alias_method :non_versioned_fields,  :non_versioned_columns
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@@ -181,6 +182,12 @@ module ActiveRecord #:nodoc:
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           self.max_version_limit            = options[:limit].to_i
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           self.version_condition            = options[:if] || true
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           self.non_versioned_columns        = [self.primary_key, inheritance_column, 'version', 'lock_version', versioned_inheritance_column]
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+          self.version_association_options  = {
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+                                                :class_name  => "#{self.to_s}::#{versioned_class_name}",
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+                                                :foreign_key => "#{versioned_foreign_key}",
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+                                                :order       => 'version',
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+                                                :dependent   => :delete_all
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+                                              }.merge(options[:association_options] || {})
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           if block_given?
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             extension_module_name = "#{versioned_class_name}Extension"
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@@ -192,10 +199,7 @@ module ActiveRecord #:nodoc:
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           end
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           class_eval do
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-            has_many :versions, 
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-              :class_name  => "#{self.to_s}::#{versioned_class_name}",
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-              :foreign_key => "#{versioned_foreign_key}",
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-              :order       => 'version', :dependent => :delete_all
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+            has_many :versions, version_association_options
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             before_save  :set_new_version
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             after_create :save_version_on_create
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             after_update :save_version

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@@ -1,4 +1,6 @@
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 class Widget < ActiveRecord::Base
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-  acts_as_versioned :sequence_name => 'widgets_seq'
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+  acts_as_versioned :sequence_name => 'widgets_seq', :association_options => {
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+    :dependent => nil, :order => 'version desc'
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+  }
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   non_versioned_columns << 'foo'
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 end
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\ No newline at end of file

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@@ -274,6 +274,26 @@ class VersionedTest < Test::Unit::TestCase
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     assert_equal 0, Page.count
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     assert_equal 0, Page::Version.count
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   end
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+  
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+  def test_association_options
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+    association = Page.reflect_on_association(:versions)
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+    options = association.options
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+    assert_equal :delete_all, options[:dependent]
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+    assert_equal 'version', options[:order]
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+    
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+    association = Widget.reflect_on_association(:versions)
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+    options = association.options
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+    assert_nil options[:dependent]
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+    assert_equal 'version desc', options[:order]
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+    assert_equal 'widget_id', options[:foreign_key]
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+    
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+    widget = Widget.create :name => 'new widget'
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+    assert_equal 1, Widget.count
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+    assert_equal 1, Widget.versioned_class.count
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+    widget.destroy
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+    assert_equal 0, Widget.count
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+    assert_equal 1, Widget.versioned_class.count
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+  end
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   def test_versioned_records_should_belong_to_parent
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     page = pages(:welcome)