X-Git-Url: https://git.openstreetmap.org/rails.git/blobdiff_plain/e1b205913c9afd6b41684add7308cef4613112e2..dc2a95903722644f6109244cec9a2d1e195fef0e:/app/models/relation.rb

diff --git a/app/models/relation.rb b/app/models/relation.rb
index 658cf06f3..81f178997 100644
--- a/app/models/relation.rb
+++ b/app/models/relation.rb
@@ -1,6 +1,8 @@
 class Relation < ActiveRecord::Base
   require 'xml/libxml'
   
+  include ConsistencyValidations
+  
   set_table_name 'current_relations'
 
   belongs_to :changeset
@@ -75,7 +77,7 @@ class Relation < ActiveRecord::Base
     
     if user_display_name_cache and user_display_name_cache.key?(self.changeset.user_id)
       # use the cache if available
-    elsif self.user.data_public?
+    elsif self.changeset.user.data_public?
       user_display_name_cache[self.changeset.user_id] = self.changeset.user.display_name
     else
       user_display_name_cache[self.changeset.user_id] = nil
@@ -180,6 +182,11 @@ class Relation < ActiveRecord::Base
 
   def add_tag_keyval(k, v)
     @tags = Hash.new unless @tags
+
+    # duplicate tags are now forbidden, so we can't allow values
+    # in the hash to be overwritten.
+    raise OSM::APIDuplicateTagsError.new if @tags.include? k
+
     @tags[k] = v
   end
 
@@ -217,13 +224,13 @@ class Relation < ActiveRecord::Base
     end
   end
 
-  def delete_with_history(user)
+  def delete_with_history!(new_relation, user)
     if self.visible
-      if RelationMember.find(:first, :joins => "INNER JOIN current_relations ON current_relations.id=current_relation_members.id", :conditions => [ "visible = 1 AND member_type='relation' and member_id=?", self.id ])
+      check_consistency(self, new_relation, user)
+      if RelationMember.find(:first, :joins => "INNER JOIN current_relations ON current_relations.id=current_relation_members.id", :conditions => [ "visible = 1 AND member_type='relation' and member_id=? ", self.id ])
         raise OSM::APIPreconditionFailedError.new
       else
-        #self.user_id = user.id
-        # FIXME we need to deal with changeset here, which is probably already dealt with
+        self.changeset_id = new_relation.changeset_id
         self.tags = []
         self.members = []
         self.visible = false
@@ -235,23 +242,25 @@ class Relation < ActiveRecord::Base
   end
 
   def update_from(new_relation, user)
+    check_consistency(self, new_relation, user)
     if !new_relation.preconditions_ok?
       raise OSM::APIPreconditionFailedError.new
-    elsif new_relation.version != version
-      raise OSM::APIVersionMismatchError.new(new_relation.version, version)
-    elsif new_relation.changeset.user_id != user.id
-      raise OSM::APIUserChangesetMismatchError.new
-    elsif not new_relation.changeset.open?
-      raise OSM::APIChangesetAlreadyClosedError.new
-    else
-      # FIXME need to deal with changeset etc
-      #self.user_id = user.id
-      self.changeset = new_relation.changeset
-      self.tags = new_relation.tags
-      self.members = new_relation.members
-      self.visible = true
-      save_with_history!
     end
+    self.changeset_id = new_relation.changeset_id
+    self.tags = new_relation.tags
+    self.members = new_relation.members
+    self.visible = true
+    save_with_history!
+  end
+  
+  def create_with_history(user)
+    check_create_consistency(self, user)
+    if !self.preconditions_ok?
+      raise OSM::APIPreconditionFailedError.new
+    end
+    self.version = 0
+    self.visible = true
+    save_with_history!
   end
 
   def preconditions_ok?
@@ -311,4 +320,22 @@ class Relation < ActiveRecord::Base
   def tags_as_hash
     return self.tags
   end
+
+  ##
+  # if any members are referenced by placeholder IDs (i.e: negative) then
+  # this calling this method will fix them using the map from placeholders 
+  # to IDs +id_map+. 
+  def fix_placeholders!(id_map)
+    self.members.map! do |type, id, role|
+      old_id = id.to_i
+      if old_id < 0
+        new_id = id_map[type.to_sym][old_id]
+        raise "invalid placeholder" if new_id.nil?
+        [type, new_id, role]
+      else
+        [type, id, role]
+      end
+    end
+  end
+
 end