X-Git-Url: https://git.openstreetmap.org./rails.git/blobdiff_plain/071c3581e94552e5da08a2eed14e9a69e4f87e4f..80a6e8da059f5572c1ad8f25ef2bbc0f913dafed:/app/controllers/relation_controller.rb

diff --git a/app/controllers/relation_controller.rb b/app/controllers/relation_controller.rb
index 0b989d11e..059fb8d7e 100644
--- a/app/controllers/relation_controller.rb
+++ b/app/controllers/relation_controller.rb
@@ -1,37 +1,31 @@
 class RelationController < ApplicationController
-  require 'xml/libxml'
+  require "xml/libxml"
 
-  skip_before_filter :verify_authenticity_token
-  before_filter :authorize, :only => [:create, :update, :delete]
-  before_filter :require_allow_write_api, :only => [:create, :update, :delete]
-  before_filter :require_public_data, :only => [:create, :update, :delete]
-  before_filter :check_api_writable, :only => [:create, :update, :delete]
-  before_filter :check_api_readable, :except => [:create, :update, :delete]
-  after_filter :compress_output
-  around_filter :api_call_handle_error, :api_call_timeout
+  skip_before_action :verify_authenticity_token
+  before_action :authorize, :only => [:create, :update, :delete]
+  before_action :require_allow_write_api, :only => [:create, :update, :delete]
+  before_action :require_public_data, :only => [:create, :update, :delete]
+  before_action :check_api_writable, :only => [:create, :update, :delete]
+  before_action :check_api_readable, :except => [:create, :update, :delete]
+  around_action :api_call_handle_error, :api_call_timeout
 
   def create
     assert_method :put
 
     relation = Relation.from_xml(request.raw_post, true)
-    
-    # We assume that an exception has been thrown if there was an error 
-    # generating the relation
-    #if relation
-    relation.create_with_history @user
-    render :text => relation.id.to_s, :content_type => "text/plain"
-    #else
-    # render :text => "Couldn't get turn the input into a relation.", :status => :bad_request
-    #end
+
+    # Assume that Relation.from_xml has thrown an exception if there is an error parsing the xml
+    relation.create_with_history current_user
+    render :plain => relation.id.to_s
   end
 
   def read
     relation = Relation.find(params[:id])
     response.last_modified = relation.timestamp
     if relation.visible
-      render :text => relation.to_xml.to_s, :content_type => "text/xml"
+      render :xml => relation.to_xml.to_s
     else
-      render :text => "", :status => :gone
+      head :gone
     end
   end
 
@@ -40,29 +34,27 @@ class RelationController < ApplicationController
 
     relation = Relation.find(params[:id])
     new_relation = Relation.from_xml(request.raw_post)
-    
-    if new_relation and new_relation.id == relation.id
-      relation.update_from new_relation, @user
-      render :text => relation.version.to_s, :content_type => "text/plain"
-    else
-      render :nothing => true, :status => :bad_request
-    end
+
+    raise OSM::APIBadUserInput, "The id in the url (#{relation.id}) is not the same as provided in the xml (#{new_relation.id})" unless new_relation && new_relation.id == relation.id
+
+    relation.update_from new_relation, current_user
+    render :plain => relation.version.to_s
   end
 
   def delete
     relation = Relation.find(params[:id])
     new_relation = Relation.from_xml(request.raw_post)
-    if new_relation and new_relation.id == relation.id
-      relation.delete_with_history!(new_relation, @user)
-      render :text => relation.version.to_s, :content_type => "text/plain"
+    if new_relation && new_relation.id == relation.id
+      relation.delete_with_history!(new_relation, current_user)
+      render :plain => relation.version.to_s
     else
-      render :nothing => true, :status => :bad_request
+      head :bad_request
     end
   end
 
   # -----------------------------------------------------------------
   # full
-  # 
+  #
   # input parameters: id
   #
   # returns XML representation of one relation object plus all its
@@ -70,79 +62,78 @@ class RelationController < ApplicationController
   # -----------------------------------------------------------------
   def full
     relation = Relation.find(params[:id])
-    
+
     if relation.visible
-      
+
       # first find the ids of nodes, ways and relations referenced by this
       # relation - note that we exclude this relation just in case.
-      
-      node_ids = relation.members.select { |m| m[0] == 'Node' }.map { |m| m[1] }
-      way_ids = relation.members.select { |m| m[0] == 'Way' }.map { |m| m[1] }
-      relation_ids = relation.members.select { |m| m[0] == 'Relation' and m[1] != relation.id }.map { |m| m[1] }
-      
+
+      node_ids = relation.members.select { |m| m[0] == "Node" }.map { |m| m[1] }
+      way_ids = relation.members.select { |m| m[0] == "Way" }.map { |m| m[1] }
+      relation_ids = relation.members.select { |m| m[0] == "Relation" && m[1] != relation.id }.map { |m| m[1] }
+
       # next load the relations and the ways.
-      
+
       relations = Relation.where(:id => relation_ids).includes(:relation_tags)
       ways = Way.where(:id => way_ids).includes(:way_nodes, :way_tags)
-      
-      # now additionally collect nodes referenced by ways. Note how we 
+
+      # now additionally collect nodes referenced by ways. Note how we
       # recursively evaluate ways but NOT relations.
-      
-      way_node_ids = ways.collect { |way|
-        way.way_nodes.collect { |way_node| way_node.node_id }
-      }
+
+      way_node_ids = ways.collect do |way|
+        way.way_nodes.collect(&:node_id)
+      end
       node_ids += way_node_ids.flatten
       nodes = Node.where(:id => node_ids.uniq).includes(:node_tags)
-      
+
       # create XML.
       doc = OSM::API.new.get_xml_doc
       visible_nodes = {}
-      visible_members = { "Node" => {}, "Way" => {}, "Relation" => {} }
       changeset_cache = {}
       user_display_name_cache = {}
-      
+
       nodes.each do |node|
-        if node.visible? # should be unnecessary if data is consistent.
-          doc.root << node.to_xml_node(changeset_cache, user_display_name_cache)
-          visible_nodes[node.id] = node
-          visible_members["Node"][node.id] = true
-        end
+        next unless node.visible? # should be unnecessary if data is consistent.
+
+        doc.root << node.to_xml_node(changeset_cache, user_display_name_cache)
+        visible_nodes[node.id] = node
       end
+
       ways.each do |way|
-        if way.visible? # should be unnecessary if data is consistent.
-          doc.root << way.to_xml_node(visible_nodes, changeset_cache, user_display_name_cache)
-          visible_members["Way"][way.id] = true
-        end
+        next unless way.visible? # should be unnecessary if data is consistent.
+
+        doc.root << way.to_xml_node(visible_nodes, changeset_cache, user_display_name_cache)
       end
+
       relations.each do |rel|
-        if rel.visible? # should be unnecessary if data is consistent.
-          doc.root << rel.to_xml_node(nil, changeset_cache, user_display_name_cache)
-          visible_members["Relation"][rel.id] = true
-        end
+        next unless rel.visible? # should be unnecessary if data is consistent.
+
+        doc.root << rel.to_xml_node(changeset_cache, user_display_name_cache)
       end
+
       # finally add self and output
-      doc.root << relation.to_xml_node(visible_members, changeset_cache, user_display_name_cache)
-      render :text => doc.to_s, :content_type => "text/xml"
-      
+      doc.root << relation.to_xml_node(changeset_cache, user_display_name_cache)
+      render :xml => doc.to_s
+
     else
-      render :nothing => true, :status => :gone
+      head :gone
     end
   end
 
   def relations
-    ids = params['relations'].split(',').collect { |w| w.to_i }
+    raise OSM::APIBadUserInput, "The parameter relations is required, and must be of the form relations=id[,id[,id...]]" unless params["relations"]
 
-    if ids.length > 0
-      doc = OSM::API.new.get_xml_doc
+    ids = params["relations"].split(",").collect(&:to_i)
 
-      Relation.find(ids).each do |relation|
-        doc.root << relation.to_xml_node
-      end
+    raise OSM::APIBadUserInput, "No relations were given to search for" if ids.empty?
 
-      render :text => doc.to_s, :content_type => "text/xml"
-    else
-      render :text => "You need to supply a comma separated list of ids.", :status => :bad_request
+    doc = OSM::API.new.get_xml_doc
+
+    Relation.find(ids).each do |relation|
+      doc.root << relation.to_xml_node
     end
+
+    render :xml => doc.to_s
   end
 
   def relations_for_way
@@ -158,7 +149,7 @@ class RelationController < ApplicationController
   end
 
   def relations_for_object(objtype)
-    relationids = RelationMember.where(:member_type => objtype, :member_id => params[:id]).collect { |ws| ws.relation_id }.uniq
+    relationids = RelationMember.where(:member_type => objtype, :member_id => params[:id]).collect(&:relation_id).uniq
 
     doc = OSM::API.new.get_xml_doc
 
@@ -166,6 +157,6 @@ class RelationController < ApplicationController
       doc.root << relation.to_xml_node if relation.visible
     end
 
-    render :text => doc.to_s, :content_type => "text/xml"
+    render :xml => doc.to_s
   end
 end