X-Git-Url: https://git.openstreetmap.org/rails.git/blobdiff_plain/15ab888d0c832a4d72fe19cfb4fc696aba482dca..8c029f8d79d07384cffafb82d4b5979181bda8ad:/app/models/node.rb

diff --git a/app/models/node.rb b/app/models/node.rb
index 1aff4101e..12ffa2091 100644
--- a/app/models/node.rb
+++ b/app/models/node.rb
@@ -3,17 +3,19 @@ class Node < ActiveRecord::Base
 
   include GeoRecord
   include ConsistencyValidations
+  include NotRedactable
+  include ObjectMetadata
 
-  set_table_name 'current_nodes'
+  self.table_name = "current_nodes"
 
   belongs_to :changeset
 
-  has_many :old_nodes, :foreign_key => :id, :order => :version
+  has_many :old_nodes, -> { order(:version) }
 
   has_many :way_nodes
   has_many :ways, :through => :way_nodes
 
-  has_many :node_tags, :foreign_key => :id
+  has_many :node_tags
   
   has_many :old_way_nodes
   has_many :ways_via_history, :class_name=> "Way", :through => :old_way_nodes, :source => :way
@@ -30,35 +32,12 @@ class Node < ActiveRecord::Base
   validate :validate_position
   validates_associated :changeset
 
+  scope :visible, -> { where(:visible => true) }
+  scope :invisible, -> { where(:visible => false) }
+
   # Sanity check the latitude and longitude and add an error if it's broken
   def validate_position
-    errors.add_to_base("Node is not in the world") unless in_world?
-  end
-
-  #
-  # Search for nodes matching tags within bounding_box
-  #
-  # Also adheres to limitations such as within max_number_of_nodes
-  #
-  def self.search(bounding_box, tags = {})
-    min_lon, min_lat, max_lon, max_lat = *bounding_box
-    # @fixme a bit of a hack to search for only visible nodes
-    # couldn't think of another to add to tags condition
-    #conditions_hash = tags.merge({ 'visible' => 1 })
-  
-    # using named placeholders http://www.robbyonrails.com/articles/2005/10/21/using-named-placeholders-in-ruby
-    #keys = []
-    #values = {}
-
-    #conditions_hash.each do |key,value|
-    #  keys <<  "#{key} = :#{key}"
-    #  values[key.to_sym] = value
-    #end 
-    #conditions = keys.join(' AND ')
- 
-    find_by_area(min_lat, min_lon, max_lat, max_lon,
-                    :conditions => {:visible => true},
-                    :limit => MAX_NUMBER_OF_NODES+1)  
+    errors.add(:base, "Node is not in the world") unless in_world?
   end
 
   # Read in xml as text and return it's Node object representation
@@ -81,8 +60,8 @@ class Node < ActiveRecord::Base
     
     raise OSM::APIBadXMLError.new("node", pt, "lat missing") if pt['lat'].nil?
     raise OSM::APIBadXMLError.new("node", pt, "lon missing") if pt['lon'].nil?
-    node.lat = pt['lat'].to_f
-    node.lon = pt['lon'].to_f
+    node.lat = OSM.parse_float(pt['lat'], OSM::APIBadXMLError, "node", pt, "lat not a number")
+    node.lon = OSM.parse_float(pt['lon'], OSM::APIBadXMLError, "node", pt, "lon not a number")
     raise OSM::APIBadXMLError.new("node", pt, "Changeset id is missing") if pt['changeset'].nil?
     node.changeset_id = pt['changeset'].to_i
 
@@ -105,6 +84,10 @@ class Node < ActiveRecord::Base
     # and set manually before the actual delete
     node.visible = true
 
+    # Start with no tags
+    node.tags = Hash.new
+
+    # Add in any tags from the XML
     pt.find('tag').each do |tag|
       raise OSM::APIBadXMLError.new("node", pt, "tag is missing key") if tag['k'].nil?
       raise OSM::APIBadXMLError.new("node", pt, "tag is missing value") if tag['v'].nil?
@@ -118,7 +101,7 @@ class Node < ActiveRecord::Base
   # the bounding box around a node, which is used for determining the changeset's
   # bounding box
   def bbox
-    [ longitude, latitude, longitude, latitude ]
+    BoundingBox.new(longitude, latitude, longitude, latitude)
   end
 
   # Should probably be renamed delete_from to come in line with update
@@ -133,13 +116,11 @@ class Node < ActiveRecord::Base
     Node.transaction do
       self.lock!
       check_consistency(self, new_node, user)
-      way = WayNode.find(:first, :joins => :way, 
-                         :conditions => [ "current_ways.visible = ? AND current_way_nodes.node_id = ?", true, self.id ])
-      raise OSM::APIPreconditionFailedError.new("Node #{self.id} is still used by way #{way.way.id}.") unless way.nil?
+      ways = Way.joins(:way_nodes).where(:visible => true, :current_way_nodes => { :node_id => id }).order(:id)
+      raise OSM::APIPreconditionFailedError.new("Node #{self.id} is still used by ways #{ways.collect { |w| w.id }.join(",")}.") unless ways.empty?
       
-      rel = RelationMember.find(:first, :joins => :relation, 
-                                :conditions => [ "visible = ? AND member_type='Node' and member_id=? ", true, self.id])
-      raise OSM::APIPreconditionFailedError.new("Node #{self.id} is still used by relation #{rel.relation.id}.") unless rel.nil?
+      rels = Relation.joins(:relation_members).where(:visible => true, :current_relation_members => { :member_type => "Node", :member_id => id }).order(:id)
+      raise OSM::APIPreconditionFailedError.new("Node #{self.id} is still used by relations #{rels.collect { |r| r.id }.join(",")}.") unless rels.empty?
 
       self.changeset_id = new_node.changeset_id
       self.tags = {}
@@ -195,44 +176,19 @@ class Node < ActiveRecord::Base
   end
 
   def to_xml_node(changeset_cache = {}, user_display_name_cache = {})
-    el1 = XML::Node.new 'node'
-    el1['id'] = self.id.to_s
-    el1['lat'] = self.lat.to_s
-    el1['lon'] = self.lon.to_s
-    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 'node'
+    el['id'] = self.id.to_s
 
-    user_id = changeset_cache[self.changeset_id]
+    add_metadata_to_xml_node(el, self, changeset_cache, user_display_name_cache)
 
-    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
+    if self.visible?
+      el['lat'] = self.lat.to_s
+      el['lon'] = self.lon.to_s
     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
-
-    self.tags.each do |k,v|
-      el2 = XML::Node.new('tag')
-      el2['k'] = k.to_s
-      el2['v'] = v.to_s
-      el1 << el2
-    end
+    add_tags_to_xml_node(el, self.node_tags)
 
-    el1['visible'] = self.visible.to_s
-    el1['timestamp'] = self.timestamp.xmlschema
-    return el1
+    return el
   end
 
   def tags_as_hash
@@ -240,13 +196,7 @@ class Node < ActiveRecord::Base
   end
 
   def tags
-    unless @tags
-      @tags = {}
-      self.node_tags.each do |tag|
-        @tags[tag.k] = tag.v
-      end
-    end
-    @tags
+    @tags ||= Hash[self.node_tags.collect { |t| [t.k, t.v] }]
   end
 
   def tags=(t)
@@ -288,12 +238,12 @@ class Node < ActiveRecord::Base
 
       # Create a NodeTag
       tags = self.tags
-      NodeTag.delete_all(['id = ?', self.id])
+      NodeTag.delete_all(:node_id => self.id)
       tags.each do |k,v|
         tag = NodeTag.new
+        tag.node_id = self.id
         tag.k = k 
         tag.v = v 
-        tag.id = self.id
         tag.save!
       end