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[rails.git] / app / models / old_relation.rb

diff --git a/app/models/old_relation.rb b/app/models/old_relation.rb
index 61c49eb590e803c2857248fd76df12ff92ea5a13..0e85122a48b67bba0954e047a95065f7fdb7dceb 100644 (file)
--- a/app/models/old_relation.rb
+++ b/app/models/old_relation.rb
@@ -1,7 +1,7 @@
 class OldRelation < ActiveRecord::Base
   include ConsistencyValidations
   include ObjectMetadata
-  
+
   self.table_name = "relations"
   self.primary_keys = "relation_id", "version"
 
@@ -13,10 +13,12 @@ class OldRelation < ActiveRecord::Base
   belongs_to :redaction
   belongs_to :current_relation, :class_name => "Relation", :foreign_key => "relation_id"
 
-  has_many :old_members, -> { order(:sequence_id) }, :class_name => 'OldRelationMember', :foreign_key => [:relation_id, :version]
-  has_many :old_tags, :class_name => 'OldRelationTag', :foreign_key => [:relation_id, :version]
-  
-  validates_associated :changeset
+  has_many :old_members, -> { order(:sequence_id) }, :class_name => "OldRelationMember", :foreign_key => [:relation_id, :version]
+  has_many :old_tags, :class_name => "OldRelationTag", :foreign_key => [:relation_id, :version]
+
+  validates :changeset, :presence => true, :associated => true
+  validates :timestamp, :presence => true
+  validates :visible, :inclusion => [true, false]
 
   def self.from_relation(relation)
     old_relation = OldRelation.new
@@ -27,31 +29,24 @@ class OldRelation < ActiveRecord::Base
     old_relation.version = relation.version
     old_relation.members = relation.members
     old_relation.tags = relation.tags
-    return old_relation
+    old_relation
   end
 
   def save_with_dependencies!
-
-    # see comment in old_way.rb ;-)
     save!
-    clear_aggregation_cache
-    clear_association_cache
-    @attributes.update(OldRelation.where(:relation_id => self.relation_id, :timestamp => self.timestamp).order("version DESC").first.instance_variable_get('@attributes'))
-
-    # ok, you can touch from here on
 
-    self.tags.each do |k,v|
+    tags.each do |k, v|
       tag = OldRelationTag.new
       tag.k = k
       tag.v = v
-      tag.relation_id = self.relation_id
-      tag.version = self.version
+      tag.relation_id = relation_id
+      tag.version = version
       tag.save!
     end
 
-    self.members.each_with_index do |m,i|
+    members.each_with_index do |m, i|
       member = OldRelationMember.new
-      member.id = [self.relation_id, self.version, i]
+      member.id = [relation_id, version, i]
       member.member_type = m[0].classify
       member.member_id = m[1]
       member.member_role = m[2]
@@ -60,77 +55,57 @@ class OldRelation < ActiveRecord::Base
   end
 
   def members
-    unless @members
-      @members = Array.new
-      self.old_members.order(:sequence_id).each do |m|
-        @members += [[m.member_type,m.member_id,m.member_role]]
-      end
+    @members ||= old_members.collect do |member|
+      [member.member_type, member.member_id, member.member_role]
     end
-    @members
   end
 
   def tags
-    unless @tags
-      @tags = Hash.new
-      self.old_tags.each do |tag|
-        @tags[tag.k] = tag.v
-      end
-    end
-    @tags = Hash.new unless @tags
-    @tags
+    @tags ||= Hash[old_tags.collect { |t| [t.k, t.v] }]
   end
 
-  def members=(s)
-    @members = s
-  end
+  attr_writer :members
 
-  def tags=(t)
-    @tags = t
-  end
+  attr_writer :tags
 
   def to_xml
     doc = OSM::API.new.get_xml_doc
-    doc.root << to_xml_node()
-    return doc
+    doc.root << to_xml_node
+    doc
   end
 
   def to_xml_node(changeset_cache = {}, user_display_name_cache = {})
-    el = XML::Node.new 'relation'
-    el['id'] = self.relation_id.to_s
+    el = XML::Node.new "relation"
+    el["id"] = relation_id.to_s
 
     add_metadata_to_xml_node(el, self, changeset_cache, user_display_name_cache)
 
-    self.old_members.each do |member|
-      member_el = XML::Node.new 'member'
-      member_el['type'] = member.member_type.to_s.downcase
-      member_el['ref'] = member.member_id.to_s # "id" is considered uncool here as it should be unique in XML
-      member_el['role'] = member.member_role.to_s
+    old_members.each do |member|
+      member_el = XML::Node.new "member"
+      member_el["type"] = member.member_type.to_s.downcase
+      member_el["ref"] = member.member_id.to_s # "id" is considered uncool here as it should be unique in XML
+      member_el["role"] = member.member_role.to_s
       el << member_el
     end
-    
-    add_tags_to_xml_node(el, self.old_tags)
 
-    return el
-  end
+    add_tags_to_xml_node(el, old_tags)
 
-  # Temporary method to match interface to nodes
-  def tags_as_hash
-    return self.tags
+    el
   end
 
   # Temporary method to match interface to relations
   def relation_members
-    return self.old_members
+    old_members
   end
 
   # Pretend we're not in any relations
   def containing_relation_members
-    return []
+    []
   end
 
   # check whether this element is the latest version - that is,
   # has the same version as its "current" counterpart.
   def is_latest_version?
-    current_relation.version == self.version
+    current_relation.version == version
   end
 end