-class OldWay < ActiveRecord::Base
- set_table_name 'ways'
+# == Schema Information
+#
+# Table name: ways
+#
+# way_id :bigint(8) default(0), 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)
+#
- belongs_to :user
+class OldWay < ApplicationRecord
+ include ConsistencyValidations
+ include ObjectMetadata
+
+ self.table_name = "ways"
+ self.primary_keys = "way_id", "version"
+
+ # 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
+ belongs_to :current_way, :class_name => "Way", :foreign_key => "way_id"
+
+ has_many :old_nodes, :class_name => "OldWayNode", :foreign_key => [:way_id, :version]
+ has_many :old_tags, :class_name => "OldWayTag", :foreign_key => [:way_id, :version]
+
+ validates :changeset, :presence => true, :associated => true
+ validates :timestamp, :presence => true
+ validates :visible, :inclusion => [true, false]
def self.from_way(way)
old_way = OldWay.new
- old_way.user_id = way.user_id
+ old_way.visible = way.visible
+ old_way.changeset_id = way.changeset_id
old_way.timestamp = way.timestamp
- old_way.id = way.id
- old_way.segs = way.segs
+ 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
- save()
- self.reload()
+ def save_with_dependencies!
+ save!
- 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.save
+ tag.way_id = way_id
+ tag.version = version
+ tag.save!
end
- i = 0
- self.segs.each do |n|
- seg = OldWaySegment.new
- seg.id = self.id
- seg.segment_id = n
- seg.version = self.version
- seg.save
+ sequence = 1
+ nds.each do |n|
+ nd = OldWayNode.new
+ nd.id = [way_id, version, sequence]
+ nd.node_id = n
+ nd.save!
+ sequence += 1
end
end
- def segs
- @segs = Array.new unless @segs
- @segs
+ def nds
+ @nds ||= old_nodes.order(:sequence_id).collect(&:node_id)
end
def tags
- @tags = Hash.new unless @tags
- @tags
+ @tags ||= Hash[old_tags.collect { |t| [t.k, t.v] }]
+ end
+
+ attr_writer :nds, :tags
+
+ def to_xml_node(changeset_cache = {}, user_display_name_cache = {})
+ el = XML::Node.new "way"
+ el["id"] = way_id.to_s
+
+ add_metadata_to_xml_node(el, self, changeset_cache, user_display_name_cache)
+
+ old_nodes.each do |nd| # FIXME: need to make sure they come back in the right order
+ node_el = XML::Node.new "nd"
+ node_el["ref"] = nd.node_id.to_s
+ el << node_el
+ end
+
+ add_tags_to_xml_node(el, old_tags)
+
+ el
end
- def segs=(s)
- @segs = s
+ # Temporary method to match interface to ways
+ def way_nodes
+ old_nodes
end
- def tags=(t)
- @tags = t
+ # Pretend we're not in any relations
+ def containing_relation_members
+ []
end
+ # check whether this element is the latest version - that is,
+ # has the same version as its "current" counterpart.
+ def is_latest_version?
+ current_way.version == version
+ end
end