X-Git-Url: https://git.openstreetmap.org./rails.git/blobdiff_plain/97aefa23d0606edaee71d04cf6c1a2006689b1fa..6a5749c55c7a93a25054dc6dd76e1c4b88e37b2c:/app/models/relation.rb

diff --git a/app/models/relation.rb b/app/models/relation.rb
index 9ee118f6e..c8516b58a 100644
--- a/app/models/relation.rb
+++ b/app/models/relation.rb
@@ -105,6 +105,36 @@ class Relation < ActiveRecord::Base
     return el1
   end 
 
+  def self.find_for_nodes(ids, options = {})
+    if ids.empty?
+      return []
+    else
+      self.with_scope(:find => { :joins => "INNER JOIN current_relation_members ON current_relation_members.id = current_relations.id", :conditions => "current_relation_members.member_type = 'node' AND current_relation_members.member_id IN (#{ids.join(',')})" }) do
+        return self.find(:all, options)
+      end
+    end
+  end
+
+  def self.find_for_ways(ids, options = {})
+    if ids.empty?
+      return []
+    else
+      self.with_scope(:find => { :joins => "INNER JOIN current_relation_members ON current_relation_members.id = current_relations.id", :conditions => "current_relation_members.member_type = 'way' AND current_relation_members.member_id IN (#{ids.join(',')})" }) do
+        return self.find(:all, options)
+      end
+    end
+  end
+
+  def self.find_for_relations(ids, options = {})
+    if ids.empty?
+      return []
+    else
+      self.with_scope(:find => { :joins => "INNER JOIN current_relation_members ON current_relation_members.id = current_relations.id", :conditions => "current_relation_members.member_type = 'relation' AND current_relation_members.member_id IN (#{ids.join(',')})" }) do
+        return self.find(:all, options)
+      end
+    end
+  end
+
   # FIXME is this really needed?
   def members
     unless @members