X-Git-Url: https://git.openstreetmap.org/rails.git/blobdiff_plain/700da2b3470de2a7826472160e1c93d8a983fefa..417ded9da545299026b96f5f81f79897f8e3769b:/app/models/node.rb

diff --git a/app/models/node.rb b/app/models/node.rb
index c8770922d..c2a61906b 100644
--- a/app/models/node.rb
+++ b/app/models/node.rb
@@ -2,15 +2,16 @@ class Node < ActiveRecord::Base
   require 'xml/libxml'
 
   include GeoRecord
+  include ConsistencyValidations
 
   set_table_name 'current_nodes'
-  
-  validates_presence_of :user_id, :timestamp
+
+  validates_presence_of :changeset_id, :timestamp
   validates_inclusion_of :visible, :in => [ true, false ]
   validates_numericality_of :latitude, :longitude
   validate :validate_position
 
-  belongs_to :user
+  belongs_to :changeset
 
   has_many :old_nodes, :foreign_key => :id
 
@@ -19,6 +20,9 @@ class Node < ActiveRecord::Base
 
   has_many :node_tags, :foreign_key => :id
   
+  has_many :old_way_nodes
+  has_many :ways_via_history, :class_name=> "Way", :through => :old_way_nodes, :source => :way
+
   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
 
@@ -71,9 +75,10 @@ class Node < ActiveRecord::Base
   def self.from_xml_node(pt, create=false)
     node = Node.new
     
-    node.version = pt['version']
+    node.version = pt['version'].to_i
     node.lat = pt['lat'].to_f
     node.lon = pt['lon'].to_f
+    node.changeset_id = pt['changeset'].to_i
 
     return nil unless node.in_world?
 
@@ -127,16 +132,18 @@ class Node < ActiveRecord::Base
     end
   end
 
-  def delete_with_history(user)
+  # Should probably be renamed delete_from to come in line with update
+  def delete_with_history!(new_node, user)
     if self.visible
+      check_consistency(self, new_node, user)
       if WayNode.find(:first, :joins => "INNER JOIN current_ways ON current_ways.id = current_way_nodes.id", :conditions => [ "current_ways.visible = 1 AND current_way_nodes.node_id = ?", self.id ])
-	raise OSM::APIPreconditionFailedError.new
-      elsif RelationMember.find(:first, :joins => "INNER JOIN current_relations ON current_relations.id=current_relation_members.id", :conditions => [ "visible = 1 AND member_type='node' and member_id=?", self.id])
-	raise OSM::APIPreconditionFailedError.new
+        raise OSM::APIPreconditionFailedError.new
+      elsif RelationMember.find(:first, :joins => "INNER JOIN current_relations ON current_relations.id=current_relation_members.id", :conditions => [ "visible = 1 AND member_type='node' and member_id=? ", self.id])
+        raise OSM::APIPreconditionFailedError.new
       else
-	self.user_id = user.id
-	self.visible = 0
-	save_with_history!
+        self.changeset_id = new_node.changeset_id
+        self.visible = 0
+        save_with_history!
       end
     else
       raise OSM::APIAlreadyDeletedError.new
@@ -144,17 +151,23 @@ class Node < ActiveRecord::Base
   end
 
   def update_from(new_node, user)
-    if new_node.version != version
-      raise OSM::APIVersionMismatchError.new(new_node.version, version)
-    end
+    check_consistency(self, new_node, user)
 
-    self.user_id = user.id
+    # FIXME logic needs to be double checked
+    self.changeset_id = new_node.changeset_id
     self.latitude = new_node.latitude 
     self.longitude = new_node.longitude
     self.tags = new_node.tags
     self.visible = true
     save_with_history!
   end
+  
+  def create_with_history(user)
+    check_create_consistency(self, user)
+    self.version = 0
+    self.visible = true
+    save_with_history!
+  end
 
   def to_xml
     doc = OSM::API.new.get_xml_doc
@@ -167,18 +180,20 @@ class Node < ActiveRecord::Base
     el1['id'] = self.id.to_s
     el1['lat'] = self.lat.to_s
     el1['lon'] = self.lon.to_s
-
+    el1['version'] = self.version.to_s
+    el1['changeset'] = self.changeset_id.to_s
+    
     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?
 
     self.tags.each do |k,v|
       el2 = XML::Node.new('tag')
@@ -189,7 +204,6 @@ class Node < ActiveRecord::Base
 
     el1['visible'] = self.visible.to_s
     el1['timestamp'] = self.timestamp.xmlschema
-    el1['version'] = self.version.to_s
     return el1
   end
 
@@ -213,9 +227,12 @@ class Node < ActiveRecord::Base
 
   def add_tag_key_val(k,v)
     @tags = Hash.new unless @tags
-    @tags[k] = v
-  end
 
+    # duplicate tags are now forbidden, so we can't allow values
+    # in the hash to be overwritten.
+    raise OSM::APIDuplicateTagsError.new if @tags.include? k
 
+    @tags[k] = v
+  end
 
 end