X-Git-Url: https://git.openstreetmap.org./rails.git/blobdiff_plain/328d47e506972fededfa1080967224928c36a4cf..4b21cdfcf994135412d7c6bccba04f329f77383b:/app/models/old_way.rb?ds=sidebyside diff --git a/app/models/old_way.rb b/app/models/old_way.rb index f297cfc1a..8577330c5 100644 --- a/app/models/old_way.rb +++ b/app/models/old_way.rb @@ -1,48 +1,71 @@ -class OldWay < ActiveRecord::Base - set_table_name 'ways' +# == Schema Information +# +# Table name: ways +# +# way_id :bigint(8) not null, primary key +# changeset_id :bigint(8) not null +# timestamp :datetime not null +# version :bigint(8) not null, primary key +# visible :boolean default(TRUE), not null +# redaction_id :integer +# +# Indexes +# +# ways_changeset_id_idx (changeset_id) +# ways_timestamp_idx (timestamp) +# +# Foreign Keys +# +# ways_changeset_id_fkey (changeset_id => changesets.id) +# ways_redaction_id_fkey (redaction_id => redactions.id) +# + +class OldWay < ApplicationRecord + self.table_name = "ways" + + # NOTE: this needs to be included after the table name changes, or + # the queries generated by Redactable will use the wrong table name. + include Redactable belongs_to :changeset + belongs_to :redaction, :optional => true + belongs_to :current_way, :class_name => "Way", :foreign_key => "way_id", :inverse_of => :old_ways + + has_many :old_nodes, :class_name => "OldWayNode", :query_constraints => [:way_id, :version], :inverse_of => :old_way + has_many :old_tags, :class_name => "OldWayTag", :query_constraints => [:way_id, :version], :inverse_of => :old_way + + validates :changeset, :associated => true + validates :timestamp, :presence => true + validates :visible, :inclusion => [true, false] def self.from_way(way) old_way = OldWay.new old_way.visible = way.visible old_way.changeset_id = way.changeset_id old_way.timestamp = way.timestamp - old_way.id = way.id + old_way.way_id = way.id old_way.version = way.version old_way.nds = way.nds old_way.tags = way.tags - return old_way + old_way end def save_with_dependencies! - - # dont touch this unless you really have figured out why it's called - # (Rails doesn't deal well with the old ways table (called 'ways') because - # it doesn't have a unique key. It knows how to insert and auto_increment - # id and get it back but we have that and we want to get the 'version' back - # we could add another column but thats a lot of data. No, set_primary_key - # doesn't work either. save! - clear_aggregation_cache - clear_association_cache - @attributes.update(OldWay.find(:first, :conditions => ['id = ? AND timestamp = ?', self.id, self.timestamp]).instance_variable_get('@attributes')) - - # ok, you can touch from here on - self.tags.each do |k,v| + tags.each do |k, v| tag = OldWayTag.new tag.k = k tag.v = v - tag.id = self.id - tag.version = self.version + tag.way_id = way_id + tag.version = version tag.save! end sequence = 1 - self.nds.each do |n| + nds.each do |n| nd = OldWayNode.new - nd.id = [self.id, self.version, sequence] + nd.id = [way_id, version, sequence] nd.node_id = n nd.save! sequence += 1 @@ -50,109 +73,28 @@ class OldWay < ActiveRecord::Base end def nds - unless @nds - @nds = Array.new - OldWayNode.find(:all, :conditions => ["id = ? AND version = ?", self.id, self.version], :order => "sequence_id").each do |nd| - @nds += [nd.node_id] - end - end - @nds + @nds ||= old_nodes.order(:sequence_id).collect(&:node_id) end def tags - unless @tags - @tags = Hash.new - OldWayTag.find(:all, :conditions => ["id = ? AND version = ?", self.id, self.version]).each do |tag| - @tags[tag.k] = tag.v - end - end - @tags = Hash.new unless @tags - @tags - end - - def nds=(s) - @nds = s - end - - def tags=(t) - @tags = t + @tags ||= old_tags.to_h { |t| [t.k, t.v] } end -# has_many :way_nodes, :class_name => 'OldWayNode', :foreign_key => 'id' -# has_many :way_tags, :class_name => 'OldWayTag', :foreign_key => 'id' - - def old_nodes - OldWayNode.find(:all, :conditions => ['id = ? AND version = ?', self.id, self.version]) - end - - def old_tags - OldWayTag.find(:all, :conditions => ['id = ? AND version = ?', self.id, self.version]) - end - - def to_xml_node - el1 = XML::Node.new 'way' - el1['id'] = self.id.to_s - el1['visible'] = self.visible.to_s - el1['timestamp'] = self.timestamp.xmlschema - el1['user'] = self.user.display_name if self.user.data_public? - el1['version'] = self.version.to_s - - self.old_nodes.each do |nd| # FIXME need to make sure they come back in the right order - e = XML::Node.new 'nd' - e['ref'] = nd.node_id.to_s - el1 << e - end - - self.old_tags.each do |tag| - e = XML::Node.new 'tag' - e['k'] = tag.k - e['v'] = tag.v - el1 << e - end - return el1 - end - - # Read full version of old way - # For get_nodes_undelete, uses same nodes, even if they've moved since - # For get_nodes_revert, allocates new ids - # Currently returns Potlatch-style array - - def get_nodes_undelete - points = [] - self.nds.each do |n| - node=Node.find(n) - points << [node.lon, node.lat, n, node.visible ? 1 : 0, node.tags_as_hash] - end - points - end - - def get_nodes_revert - points=[] - self.nds.each do |n| - oldnode=OldNode.find(:first, :conditions=>['id=? AND timestamp<=?',n,self.timestamp], :order=>"timestamp DESC") - curnode=Node.find(n) - id=n; v=curnode.visible ? 1 : 0 - if oldnode.lat!=curnode.lat or oldnode.lon!=curnode.lon or oldnode.tags!=curnode.tags then - # node has changed: if it's in other ways, give it a new id - if curnode.ways-[self.id] then id=-1; v=nil end - end - points << [oldnode.lon, oldnode.lat, id, v, oldnode.tags_as_hash] - end - points - end - - # Temporary method to match interface to nodes - def tags_as_hash - return self.tags - end + attr_writer :nds, :tags # Temporary method to match interface to ways def way_nodes - return self.old_nodes + old_nodes end # Pretend we're not in any relations def containing_relation_members - return [] + [] + end + + # check whether this element is the latest version - that is, + # has the same version as its "current" counterpart. + def latest_version? + current_way.version == version end end