Fully encode wikipedia tag values

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

diff --git a/app/models/old_way.rb b/app/models/old_way.rb
index 3f978d3d407ad88ca44bcaf7d9586c61ddbd8db9..8577330c52823dd808e5128b7047f7a17dcd9c5a 100644 (file)
--- a/app/models/old_way.rb
+++ b/app/models/old_way.rb
@@ -1,14 +1,100 @@
-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)
+#
 
-  belongs_to :user
+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.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
-    return old_way
+    old_way.way_id = way.id
+    old_way.version = way.version
+    old_way.nds = way.nds
+    old_way.tags = way.tags
+    old_way
+  end
+
+  def save_with_dependencies!
+    save!
+
+    tags.each do |k, v|
+      tag = OldWayTag.new
+      tag.k = k
+      tag.v = v
+      tag.way_id = way_id
+      tag.version = version
+      tag.save!
+    end
+
+    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 nds
+    @nds ||= old_nodes.order(:sequence_id).collect(&:node_id)
+  end
+
+  def tags
+    @tags ||= old_tags.to_h { |t| [t.k, t.v] }
   end
 
+  attr_writer :nds, :tags
+
+  # Temporary method to match interface to ways
+  def way_nodes
+    old_nodes
+  end
+
+  # 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 latest_version?
+    current_way.version == version
+  end
 end