Merge 7649:7673 from trunk.

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

diff --git a/app/models/way.rb b/app/models/way.rb
index 924fffe5c84b99775a37fec5b116f5d9a0ec4ec0..104c550a9b29c1294eb1b9bc856ba95901497d32 100644 (file)
--- a/app/models/way.rb
+++ b/app/models/way.rb
@@ -3,6 +3,7 @@ class Way < ActiveRecord::Base
 
   belongs_to :user
 
+  has_many :nodes, :through => :way_nodes, :order => 'sequence_id'
   has_many :way_nodes, :foreign_key => 'id', :order => 'sequence_id'
   has_many :way_tags, :foreign_key => 'id'
 
@@ -69,6 +70,7 @@ class Way < ActiveRecord::Base
     el1['id'] = self.id.to_s
     el1['visible'] = self.visible.to_s
     el1['timestamp'] = self.timestamp.xmlschema
+    el1['version'] = self.version.to_s
 
     user_display_name_cache = {} if user_display_name_cache.nil?
 
@@ -157,15 +159,12 @@ class Way < ActiveRecord::Base
     t = Time.now
 
     Way.transaction do
+      self.version += 1
       self.timestamp = t
       self.save!
-    end
 
-    WayTag.transaction do
       tags = self.tags
-
       WayTag.delete_all(['id = ?', self.id])
-
       tags.each do |k,v|
         tag = WayTag.new
         tag.k = k
@@ -173,13 +172,9 @@ class Way < ActiveRecord::Base
         tag.id = self.id
         tag.save!
       end
-    end
 
-    WayNode.transaction do
       nds = self.nds
-
       WayNode.delete_all(['id = ?', self.id])
-
       sequence = 1
       nds.each do |n|
         nd = WayNode.new
@@ -188,11 +183,11 @@ class Way < ActiveRecord::Base
         nd.save!
         sequence += 1
       end
-    end
 
-    old_way = OldWay.from_way(self)
-    old_way.timestamp = t
-    old_way.save_with_dependencies!
+      old_way = OldWay.from_way(self)
+      old_way.timestamp = t
+      old_way.save_with_dependencies!
+    end
   end
 
   def preconditions_ok?
@@ -209,10 +204,13 @@ class Way < ActiveRecord::Base
   # Delete the way and it's relations, but don't really delete it - set its visibility to false and update the history etc to maintain wiki-like functionality.
   def delete_with_relations_and_history(user)
     if self.visible
-      # omg FIXME
+         # FIXME
+         # this should actually delete the relations,
+         # not just throw a PreconditionFailed if it's a member of a relation!!
       if RelationMember.find(:first, :joins => "INNER JOIN current_relations ON current_relations.id=current_relation_members.id",
                              :conditions => [ "visible = 1 AND member_type='way' and member_id=?", self.id])
         raise OSM::APIPreconditionFailedError
+      # end FIXME
       else
         self.user_id = user.id
         self.tags = []
@@ -224,4 +222,29 @@ class Way < ActiveRecord::Base
       raise OSM::APIAlreadyDeletedError
     end
   end
+
+  # delete a way and it's nodes that aren't part of other ways, with history
+  def delete_with_relations_and_nodes_and_history(user)
+    
+    node_ids = self.nodes.collect {|node| node.id }
+    node_ids_not_to_delete = []
+    way_nodes = WayNode.find(:all, :conditions => "node_id in (#{node_ids.join(',')}) and id != #{self.id}")
+    
+    node_ids_not_to_delete = way_nodes.collect {|way_node| way_node.node_id}
+
+    node_ids_to_delete = node_ids - node_ids_not_to_delete
+
+    # delete the nodes not used by other ways
+    node_ids_to_delete.each do |node_id|
+      n = Node.find(node_id)
+      n.user_id = user.id
+      n.visible = false
+      n.save_with_history!
+    end
+    
+    self.user_id = user.id
+
+    self.delete_with_relations_and_history(user)
+
+  end
 end