Merged trunk r1773.

git-svn-id: http://redmine.rubyforge.org/svn/branches/work@1774 e93f8b46-1217-0410-a6f0-8f06a7374b81

groups/app/models/repository.rb

@@ -17,9 +17,16 @@
 
 class Repository < ActiveRecord::Base
   belongs_to :project
-  has_many :changesets, :dependent => :destroy, :order => "#{Changeset.table_name}.committed_on DESC, #{Changeset.table_name}.id DESC"
+  has_many :changesets, :order => "#{Changeset.table_name}.committed_on DESC, #{Changeset.table_name}.id DESC"
   has_many :changes, :through => :changesets
-    
+  
+  # Raw SQL to delete changesets and changes in the database
+  # has_many :changesets, :dependent => :destroy is too slow for big repositories
+  before_destroy :clear_changesets
+  
+  # Checks if the SCM is enabled when creating a repository
+  validate_on_create { |r| r.errors.add(:type, :activerecord_error_invalid) unless Setting.enabled_scm.include?(r.class.name.demodulize) }
+  
   # Removes leading and trailing whitespace
   def url=(arg)
     write_attribute(:url, arg ? arg.to_s.strip : nil)
@@ -48,12 +55,24 @@ class Repository < ActiveRecord::Base
     scm.supports_annotate?
   end
   
+  def entry(path=nil, identifier=nil)
+    scm.entry(path, identifier)
+  end
+  
   def entries(path=nil, identifier=nil)
     scm.entries(path, identifier)
   end
   
-  def diff(path, rev, rev_to, type)
-    scm.diff(path, rev, rev_to, type)
+  def properties(path, identifier=nil)
+    scm.properties(path, identifier)
+  end
+  
+  def cat(path, identifier=nil)
+    scm.cat(path, identifier)
+  end
+  
+  def diff(path, rev, rev_to)
+    scm.diff(path, rev, rev_to)
   end
   
   # Default behaviour: we search in cached changesets
@@ -64,6 +83,11 @@ class Repository < ActiveRecord::Base
       :order => "committed_on DESC, #{Changeset.table_name}.id DESC").collect(&:changeset)
   end
   
+  # Returns a path relative to the url of the repository
+  def relative_path(path)
+    path
+  end
+  
   def latest_changeset
     @latest_changeset ||= changesets.find(:first)
   end
@@ -107,4 +131,9 @@ class Repository < ActiveRecord::Base
     root_url.strip!
     true
   end
+  
+  def clear_changesets
+    connection.delete("DELETE FROM changes WHERE changes.changeset_id IN (SELECT changesets.id FROM changesets WHERE changesets.repository_id = #{id})")
+    connection.delete("DELETE FROM changesets WHERE changesets.repository_id = #{id}")
+  end
 end