Presentation work

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

diff --git a/app/models/way.rb b/app/models/way.rb
index 23475785c88f1ecc069268f6df85dd2e76fd730c..a9fdd88eeb1ca7f46714d42c3ec7cf8e61fe1344 100644 (file)
--- a/app/models/way.rb
+++ b/app/models/way.rb
@@ -2,17 +2,19 @@ class Way < ActiveRecord::Base
   require 'xml/libxml'
   
   include ConsistencyValidations
+  include NotRedactable
+  include ObjectMetadata
 
-  set_table_name 'current_ways'
+  self.table_name = "current_ways"
   
   belongs_to :changeset
 
-  has_many :old_ways, :foreign_key => 'id', :order => 'version'
+  has_many :old_ways, -> { order(:version) }
 
-  has_many :way_nodes, :foreign_key => 'id', :order => 'sequence_id'
-  has_many :nodes, :through => :way_nodes, :order => 'sequence_id'
+  has_many :way_nodes, -> { order(:sequence_id) }
+  has_many :nodes, -> { order("sequence_id") }, :through => :way_nodes
 
-  has_many :way_tags, :foreign_key => 'id'
+  has_many :way_tags
 
   has_many :containing_relation_members, :class_name => "RelationMember", :as => :member
   has_many :containing_relations, :class_name => "Relation", :through => :containing_relation_members, :source => :relation, :extend => ObjectFinder
@@ -25,8 +27,8 @@ class Way < ActiveRecord::Base
   validates_numericality_of :id, :on => :update, :integer_only => true
   validates_associated :changeset
 
-  scope :visible, where(:visible => true)
-  scope :invisible, where(:visible => false)
+  scope :visible, -> { where(:visible => true) }
+  scope :invisible, -> { where(:visible => false) }
 
   # Read in xml as text and return it's Way object representation
   def self.from_xml(xml, create=false)
@@ -64,6 +66,10 @@ class Way < ActiveRecord::Base
     # and manually set to false before the actual delete.
     way.visible = true
 
+    # Start with no tags
+    way.tags = Hash.new
+
+    # Add in any tags from the XML
     pt.find('tag').each do |tag|
       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?
@@ -95,33 +101,10 @@ class Way < ActiveRecord::Base
   end
 
   def to_xml_node(visible_nodes = nil, changeset_cache = {}, user_display_name_cache = {})
-    el1 = XML::Node.new 'way'
-    el1['id'] = self.id.to_s
-    el1['visible'] = self.visible.to_s
-    el1['timestamp'] = self.timestamp.xmlschema
-    el1['version'] = self.version.to_s
-    el1['changeset'] = self.changeset_id.to_s
-
-    if changeset_cache.key?(self.changeset_id)
-      # use the cache if available
-    else
-      changeset_cache[self.changeset_id] = self.changeset.user_id
-    end
+    el = XML::Node.new 'way'
+    el['id'] = self.id.to_s
 
-    user_id = changeset_cache[self.changeset_id]
-
-    if user_display_name_cache.key?(user_id)
-      # use the cache if available
-    elsif self.changeset.user.data_public?
-      user_display_name_cache[user_id] = self.changeset.user.display_name
-    else
-      user_display_name_cache[user_id] = nil
-    end
-
-    if not user_display_name_cache[user_id].nil?
-      el1['user'] = user_display_name_cache[user_id]
-      el1['uid'] = user_id.to_s
-    end
+    add_metadata_to_xml_node(el, self, changeset_cache, user_display_name_cache)
 
     # make sure nodes are output in sequence_id order
     ordered_nodes = []
@@ -141,39 +124,23 @@ class Way < ActiveRecord::Base
 
     ordered_nodes.each do |nd_id|
       if nd_id and nd_id != '0'
-        e = XML::Node.new 'nd'
-        e['ref'] = nd_id
-        el1 << e
+        node_el = XML::Node.new 'nd'
+        node_el['ref'] = nd_id
+        el << node_el
       end
     end
 
-    self.way_tags.each do |tag|
-      e = XML::Node.new 'tag'
-      e['k'] = tag.k
-      e['v'] = tag.v
-      el1 << e
-    end
-    return el1
+    add_tags_to_xml_node(el, self.way_tags)
+
+    return el
   end 
 
   def nds
-    unless @nds
-      @nds = Array.new
-      self.way_nodes.each do |nd|
-        @nds += [nd.node_id]
-      end
-    end
-    @nds
+    @nds ||= self.way_nodes.collect { |n| n.node_id }
   end
 
   def tags
-    unless @tags
-      @tags = {}
-      self.way_tags.each do |tag|
-        @tags[tag.k] = tag.v
-      end
-    end
-    @tags
+    @tags ||= Hash[self.way_tags.collect { |t| [t.k, t.v] }]
   end
 
   def nds=(s)
@@ -205,7 +172,7 @@ class Way < ActiveRecord::Base
   def bbox
     lons = nodes.collect { |n| n.longitude }
     lats = nodes.collect { |n| n.latitude }
-    [ lons.min, lats.min, lons.max, lats.max ]
+    BoundingBox.new(lons.min, lats.min, lons.max, lats.max)
   end
 
   def update_from(new_way, user)
@@ -246,7 +213,7 @@ class Way < ActiveRecord::Base
     new_nds = (self.nds - old_nodes).sort.uniq
 
     unless new_nds.empty?
-      db_nds = Node.find(:all, :conditions => { :id => new_nds, :visible => true })
+      db_nds = Node.where(:id => new_nds, :visible => true)
 
       if db_nds.length < new_nds.length
         missing = new_nds - db_nds.collect { |n| n.id }
@@ -320,17 +287,17 @@ class Way < ActiveRecord::Base
       self.save!
 
       tags = self.tags
-      WayTag.delete_all(['id = ?', self.id])
+      WayTag.delete_all(:way_id => self.id)
       tags.each do |k,v|
         tag = WayTag.new
+        tag.way_id = self.id
         tag.k = k
         tag.v = v
-        tag.id = self.id
         tag.save!
       end
 
       nds = self.nds
-      WayNode.delete_all(['id = ?', self.id])
+      WayNode.delete_all(:way_id => self.id)
       sequence = 1
       nds.each do |n|
         nd = WayNode.new
@@ -358,5 +325,4 @@ class Way < ActiveRecord::Base
       cs.save!
     end
   end
-
 end