Reduce maximum changeset size to 10k changes

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

diff --git a/app/models/way.rb b/app/models/way.rb
index 34e568e4ab15d407ff052e4fb3526f88209ce48e..9877b8bb8ea2b8dcde7a26c3f93b599fb29f8904 100644 (file)
--- a/app/models/way.rb
+++ b/app/models/way.rb
@@ -34,13 +34,13 @@ class Way < ActiveRecord::Base
 
   # Read in xml as text and return it's Way object representation
   def self.from_xml(xml, create = false)
 
   # Read in xml as text and return it's Way object representation
   def self.from_xml(xml, create = false)

-    p = XML::Parser.string(xml)
+    p = XML::Parser.string(xml, :options => XML::Parser::Options::NOERROR)

     doc = p.parse
 
     doc.find("//osm/way").each do |pt|
       return Way.from_xml_node(pt, create)
     end
     doc = p.parse
 
     doc.find("//osm/way").each do |pt|
       return Way.from_xml_node(pt, create)
     end

-    fail OSM::APIBadXMLError.new("node", xml, "XML doesn't contain an osm/way element.")
+    raise OSM::APIBadXMLError.new("node", xml, "XML doesn't contain an osm/way element.")

   rescue LibXML::XML::Error, ArgumentError => ex
     raise OSM::APIBadXMLError.new("way", xml, ex.message)
   end
   rescue LibXML::XML::Error, ArgumentError => ex
     raise OSM::APIBadXMLError.new("way", xml, ex.message)
   end


@@ -48,17 +48,17 @@ class Way < ActiveRecord::Base
   def self.from_xml_node(pt, create = false)
     way = Way.new
 
   def self.from_xml_node(pt, create = false)
     way = Way.new
 

-    fail OSM::APIBadXMLError.new("way", pt, "Version is required when updating") unless create || !pt["version"].nil?
+    raise OSM::APIBadXMLError.new("way", pt, "Version is required when updating") unless create || !pt["version"].nil?

     way.version = pt["version"]
     way.version = pt["version"]

-    fail OSM::APIBadXMLError.new("way", pt, "Changeset id is missing") if pt["changeset"].nil?
+    raise OSM::APIBadXMLError.new("way", pt, "Changeset id is missing") if pt["changeset"].nil?

     way.changeset_id = pt["changeset"]
 
     unless create
     way.changeset_id = pt["changeset"]
 
     unless create

-      fail OSM::APIBadXMLError.new("way", pt, "ID is required when updating") if pt["id"].nil?
+      raise OSM::APIBadXMLError.new("way", pt, "ID is required when updating") if pt["id"].nil?

       way.id = pt["id"].to_i
       # .to_i will return 0 if there is no number that can be parsed.
       # We want to make sure that there is no id with zero anyway
       way.id = pt["id"].to_i
       # .to_i will return 0 if there is no number that can be parsed.
       # We want to make sure that there is no id with zero anyway

-      fail OSM::APIBadUserInput.new("ID of way cannot be zero when updating.") if way.id == 0
+      raise OSM::APIBadUserInput.new("ID of way cannot be zero when updating.") if way.id.zero?

     end
 
     # We don't care about the timestamp nor the visibility as these are either
     end
 
     # We don't care about the timestamp nor the visibility as these are either


@@ -71,8 +71,8 @@ class Way < ActiveRecord::Base
 
     # Add in any tags from the XML
     pt.find("tag").each do |tag|
 
     # Add in any tags from the XML
     pt.find("tag").each do |tag|

-      fail OSM::APIBadXMLError.new("way", pt, "tag is missing key") if tag["k"].nil?
-      fail OSM::APIBadXMLError.new("way", pt, "tag is missing value") if tag["v"].nil?
+      raise OSM::APIBadXMLError.new("way", pt, "tag is missing key") if tag["k"].nil?
+      raise OSM::APIBadXMLError.new("way", pt, "tag is missing value") if tag["v"].nil?

       way.add_tag_keyval(tag["k"], tag["v"])
     end
 
       way.add_tag_keyval(tag["k"], tag["v"])
     end
 


@@ -147,7 +147,7 @@ class Way < ActiveRecord::Base
 
     # duplicate tags are now forbidden, so we can't allow values
     # in the hash to be overwritten.
 
     # duplicate tags are now forbidden, so we can't allow values
     # in the hash to be overwritten.

-    fail OSM::APIDuplicateTagsError.new("way", id, k) if @tags.include? k
+    raise OSM::APIDuplicateTagsError.new("way", id, k) if @tags.include? k

 
     @tags[k] = v
   end
 
     @tags[k] = v
   end


@@ -163,10 +163,10 @@ class Way < ActiveRecord::Base
 
   def update_from(new_way, user)
     Way.transaction do
 
   def update_from(new_way, user)
     Way.transaction do

-      self.lock!
+      lock!

       check_consistency(self, new_way, user)
       unless new_way.preconditions_ok?(nds)
       check_consistency(self, new_way, user)
       unless new_way.preconditions_ok?(nds)

-        fail OSM::APIPreconditionFailedError.new("Cannot update way #{id}: data is invalid.")
+        raise OSM::APIPreconditionFailedError.new("Cannot update way #{id}: data is invalid.")

       end
 
       self.changeset_id = new_way.changeset_id
       end
 
       self.changeset_id = new_way.changeset_id


@@ -180,8 +180,8 @@ class Way < ActiveRecord::Base
 
   def create_with_history(user)
     check_create_consistency(self, user)
 
   def create_with_history(user)
     check_create_consistency(self, user)

-    unless self.preconditions_ok?
-      fail OSM::APIPreconditionFailedError.new("Cannot create way: data is invalid.")
+    unless preconditions_ok?
+      raise OSM::APIPreconditionFailedError.new("Cannot create way: data is invalid.")

     end
     self.version = 0
     self.visible = true
     end
     self.version = 0
     self.visible = true


@@ -191,7 +191,7 @@ class Way < ActiveRecord::Base
   def preconditions_ok?(old_nodes = [])
     return false if nds.empty?
     if nds.length > MAX_NUMBER_OF_WAY_NODES
   def preconditions_ok?(old_nodes = [])
     return false if nds.empty?
     if nds.length > MAX_NUMBER_OF_WAY_NODES

-      fail OSM::APITooManyWayNodesError.new(id, nds.length, MAX_NUMBER_OF_WAY_NODES)
+      raise OSM::APITooManyWayNodesError.new(id, nds.length, MAX_NUMBER_OF_WAY_NODES)

     end
 
     # check only the new nodes, for efficiency - old nodes having been checked last time and can't
     end
 
     # check only the new nodes, for efficiency - old nodes having been checked last time and can't


@@ -199,11 +199,13 @@ class Way < ActiveRecord::Base
     new_nds = (nds - old_nodes).sort.uniq
 
     unless new_nds.empty?
     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)
 
       if db_nds.length < new_nds.length
         missing = new_nds - db_nds.collect(&:id)

-        fail OSM::APIPreconditionFailedError.new("Way #{id} requires the nodes with id in (#{missing.join(',')}), which either do not exist, or are not visible.")
+        raise OSM::APIPreconditionFailedError.new("Way #{id} requires the nodes with id in (#{missing.join(',')}), which either do not exist, or are not visible.")

       end
     end
 
       end
     end
 


@@ -211,16 +213,16 @@ class Way < ActiveRecord::Base
   end
 
   def delete_with_history!(new_way, user)
   end
 
   def delete_with_history!(new_way, user)

-    fail OSM::APIAlreadyDeletedError.new("way", new_way.id) unless visible
+    raise OSM::APIAlreadyDeletedError.new("way", new_way.id) unless visible

 
     # need to start the transaction here, so that the database can
     # provide repeatable reads for the used-by checks. this means it
     # shouldn't be possible to get race conditions.
     Way.transaction do
 
     # need to start the transaction here, so that the database can
     # 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)
       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?
+      raise OSM::APIPreconditionFailedError.new("Way #{id} is still used by relations #{rels.collect(&:id).join(',')}.") unless rels.empty?

 
       self.changeset_id = new_way.changeset_id
       self.changeset = new_way.changeset
 
       self.changeset_id = new_way.changeset_id
       self.changeset = new_way.changeset


@@ -240,7 +242,7 @@ class Way < ActiveRecord::Base
     nds.map! do |node_id|
       if node_id < 0
         new_id = id_map[:node][node_id]
     nds.map! do |node_id|
       if node_id < 0
         new_id = id_map[:node][node_id]

-        fail OSM::APIBadUserInput.new("Placeholder node not found for reference #{node_id} in way #{id.nil? ? placeholder_id : id}") if new_id.nil?
+        raise OSM::APIBadUserInput.new("Placeholder node not found for reference #{node_id} in way #{id.nil? ? placeholder_id : id}") if new_id.nil?

         new_id
       else
         node_id
         new_id
       else
         node_id


@@ -253,6 +255,9 @@ class Way < ActiveRecord::Base
   def save_with_history!
     t = Time.now.getutc
 
   def save_with_history!
     t = Time.now.getutc
 

+    self.version += 1
+    self.timestamp = t
+

     # update the bounding box, note that this has to be done both before
     # and after the save, so that nodes from both versions are included in the
     # bbox. we use a copy of the changeset so that it isn't reloaded
     # update the bounding box, note that this has to be done both before
     # and after the save, so that nodes from both versions are included in the
     # bbox. we use a copy of the changeset so that it isn't reloaded


@@ -261,9 +266,9 @@ class Way < ActiveRecord::Base
     cs.update_bbox!(bbox) unless nodes.empty?
 
     Way.transaction do
     cs.update_bbox!(bbox) unless nodes.empty?
 
     Way.transaction do

-      self.version += 1
-      self.timestamp = t
-      self.save!
+      # clone the object before saving it so that the original is
+      # still marked as dirty if we retry the transaction
+      clone.save!

 
       tags = self.tags
       WayTag.delete_all(:way_id => id)
 
       tags = self.tags
       WayTag.delete_all(:way_id => id)