X-Git-Url: https://git.openstreetmap.org./rails.git/blobdiff_plain/013ef53c97a1d2c8319f1ac624e8325a06828366..2347761266d8848dcdc42f9e5d9ef380fa04b89a:/app/models/way.rb

diff --git a/app/models/way.rb b/app/models/way.rb
index 255f4329f..7c6e9d06b 100644
--- a/app/models/way.rb
+++ b/app/models/way.rb
@@ -1,15 +1,22 @@
 class Way < ActiveRecord::Base
   require 'xml/libxml'
 
-  belongs_to :user
+  set_table_name 'current_ways'
 
-  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'
+  validates_presence_of :changeset_id, :timestamp
+  validates_inclusion_of :visible, :in => [ true, false ]
+  
+  belongs_to :changeset
 
   has_many :old_ways, :foreign_key => 'id', :order => 'version'
 
-  set_table_name 'current_ways'
+  has_many :way_nodes, :foreign_key => 'id', :order => 'sequence_id'
+  has_many :nodes, :through => :way_nodes, :order => 'sequence_id'
+
+  has_many :way_tags, :foreign_key => 'id'
+
+  has_many :containing_relation_members, :class_name => "RelationMember", :as => :member
+  has_many :containing_relations, :class_name => "Relation", :through => :containing_relation_members, :source => :relation, :extend => ObjectFinder
 
   def self.from_xml(xml, create=false)
     begin
@@ -31,13 +38,16 @@ class Way < ActiveRecord::Base
     if !create and pt['id'] != '0'
       way.id = pt['id'].to_i
     end
+    
+    way.version = pt['version']
+    way.changeset_id = pt['changeset']
 
     if create
       way.timestamp = Time.now
       way.visible = true
     else
       if pt['timestamp']
-	way.timestamp = Time.parse(pt['timestamp'])
+        way.timestamp = Time.parse(pt['timestamp'])
       end
     end
 
@@ -78,15 +88,15 @@ class Way < ActiveRecord::Base
 
     user_display_name_cache = {} if user_display_name_cache.nil?
 
-    if user_display_name_cache and user_display_name_cache.key?(self.user_id)
+    if user_display_name_cache and user_display_name_cache.key?(self.changeset.user_id)
       # use the cache if available
-    elsif self.user.data_public?
-      user_display_name_cache[self.user_id] = self.user.display_name
+    elsif self.changeset.user.data_public?
+      user_display_name_cache[self.changeset.user_id] = self.changeset.user.display_name
     else
-      user_display_name_cache[self.user_id] = nil
+      user_display_name_cache[self.changeset.user_id] = nil
     end
 
-    el1['user'] = user_display_name_cache[self.user_id] unless user_display_name_cache[self.user_id].nil?
+    el1['user'] = user_display_name_cache[self.changeset.user_id] unless user_display_name_cache[self.changeset.user_id].nil?
 
     # make sure nodes are output in sequence_id order
     ordered_nodes = []
@@ -197,6 +207,8 @@ class Way < ActiveRecord::Base
   def update_from(new_way, user)
     if !new_way.preconditions_ok?
       raise OSM::APIPreconditionFailedError.new
+    elsif new_way.version != version
+      raise OSM::APIVersionMismatchError.new(new_way.version, version)
     else
       self.user_id = user.id
       self.tags = new_way.tags
@@ -217,8 +229,7 @@ class Way < ActiveRecord::Base
     return true
   end
 
-  # 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)
+  def delete_with_history(user)
     if self.visible
 	  # FIXME
 	  # this should actually delete the relations,
@@ -242,18 +253,11 @@ class Way < ActiveRecord::Base
   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
 
+  # FIXME: merge the potlatch code to delete the relations
+  def delete_with_relations_and_nodes_and_history(user)
     # delete the nodes not used by other ways
-    node_ids_to_delete.each do |node_id|
+    self.unshared_node_ids.each do |node_id|
       n = Node.find(node_id)
       n.user_id = user.id
       n.visible = false
@@ -262,7 +266,23 @@ class Way < ActiveRecord::Base
     
     self.user_id = user.id
 
-    self.delete_with_relations_and_history(user)
+    self.delete_with_history(user)
+  end
+
+  # Find nodes that belong to this way only
+  def unshared_node_ids
+    node_ids = self.nodes.collect { |node| node.id }
+
+    unless node_ids.empty?
+      way_nodes = WayNode.find(:all, :conditions => "node_id in (#{node_ids.join(',')}) and id != #{self.id}")
+      node_ids = node_ids - way_nodes.collect { |way_node| way_node.node_id }
+    end
+
+    return node_ids
+  end
 
+  # Temporary method to match interface to nodes
+  def tags_as_hash
+    return self.tags
   end
 end