X-Git-Url: https://git.openstreetmap.org./rails.git/blobdiff_plain/dc2a2c8ebd1a11e4a64555fda22c6859a51defff..c7061991e74a20cc0576a3afa269821a87178f77:/app/models/way.rb

diff --git a/app/models/way.rb b/app/models/way.rb
index 9b1765d12..0f9650760 100644
--- a/app/models/way.rb
+++ b/app/models/way.rb
@@ -19,13 +19,15 @@ class Way < ActiveRecord::Base
   has_many :containing_relation_members, :class_name => "RelationMember", :as => :member
   has_many :containing_relations, :class_name => "Relation", :through => :containing_relation_members, :source => :relation
 
-  validates_presence_of :id, :on => :update
-  validates_presence_of :changeset_id, :version,  :timestamp
-  validates_uniqueness_of :id
-  validates_inclusion_of :visible, :in => [true, false]
-  validates_numericality_of :changeset_id, :version, :integer_only => true
-  validates_numericality_of :id, :on => :update, :integer_only => true
-  validates_associated :changeset
+  validates :id, :uniqueness => true, :presence => { :on => :update },
+                 :numericality => { :on => :update, :integer_only => true }
+  validates :version, :presence => true,
+                      :numericality => { :integer_only => true }
+  validates :changeset_id, :presence => true,
+                           :numericality => { :integer_only => true }
+  validates :timestamp, :presence => true
+  validates :changeset, :associated => true
+  validates :visible, :inclusion => [true, false]
 
   scope :visible, -> { where(:visible => true) }
   scope :invisible, -> { where(:visible => false) }
@@ -81,16 +83,6 @@ class Way < ActiveRecord::Base
     way
   end
 
-  # Find a way given it's ID, and in a single SQL call also grab its nodes
-  #
-
-  # You can't pull in all the tags too unless we put a sequence_id on the way_tags table and have a multipart key
-  def self.find_eager(id)
-    Way.find(id, :include => { :way_nodes => :node })
-    # If waytag had a multipart key that was real, you could do this:
-    # Way.find(id, :include => [:way_tags, {:way_nodes => :node}])
-  end
-
   # Find a way given it's ID, and in a single SQL call also grab its nodes and tags
   def to_xml
     doc = OSM::API.new.get_xml_doc
@@ -171,7 +163,7 @@ class Way < ActiveRecord::Base
 
   def update_from(new_way, user)
     Way.transaction do
-      self.lock!
+      lock!
       check_consistency(self, new_way, user)
       unless new_way.preconditions_ok?(nds)
         fail OSM::APIPreconditionFailedError.new("Cannot update way #{id}: data is invalid.")
@@ -188,7 +180,7 @@ class Way < ActiveRecord::Base
 
   def create_with_history(user)
     check_create_consistency(self, user)
-    unless self.preconditions_ok?
+    unless preconditions_ok?
       fail OSM::APIPreconditionFailedError.new("Cannot create way: data is invalid.")
     end
     self.version = 0
@@ -207,7 +199,9 @@ class Way < ActiveRecord::Base
     new_nds = (nds - old_nodes).sort.uniq
 
     unless new_nds.empty?
-      db_nds = Node.where(:id => new_nds, :visible => true)
+      # NOTE: nodes are locked here to ensure they can't be deleted before
+      # the current transaction commits.
+      db_nds = Node.where(:id => new_nds, :visible => true).lock("for share")
 
       if db_nds.length < new_nds.length
         missing = new_nds - db_nds.collect(&:id)
@@ -225,7 +219,7 @@ class Way < ActiveRecord::Base
     # provide repeatable reads for the used-by checks. this means it
     # shouldn't be possible to get race conditions.
     Way.transaction do
-      self.lock!
+      lock!
       check_consistency(self, new_way, user)
       rels = Relation.joins(:relation_members).where(:visible => true, :current_relation_members => { :member_type => "Way", :member_id => id }).order(:id)
       fail OSM::APIPreconditionFailedError.new("Way #{id} is still used by relations #{rels.collect(&:id).join(",")}.") unless rels.empty?
@@ -240,11 +234,6 @@ class Way < ActiveRecord::Base
     end
   end
 
-  # Temporary method to match interface to nodes
-  def tags_as_hash
-    tags
-  end
-
   ##
   # if any referenced nodes are placeholder IDs (i.e: are negative) then
   # this calling this method will fix them using the map from placeholders
@@ -276,7 +265,7 @@ class Way < ActiveRecord::Base
     Way.transaction do
       self.version += 1
       self.timestamp = t
-      self.save!
+      save!
 
       tags = self.tags
       WayTag.delete_all(:way_id => id)