Some improvements for the XML parsing, as there are somethings that we don't need...

[rails.git] / app / controllers / way_controller.rb

diff --git a/app/controllers/way_controller.rb b/app/controllers/way_controller.rb
index b443a67c00ec47a8d0f65424540f7ba18da41641..5b0a632f75091a37bef05e2e95e6272351027da3 100644 (file)
--- a/app/controllers/way_controller.rb
+++ b/app/controllers/way_controller.rb
@@ -1,79 +1,145 @@
 class WayController < ApplicationController
   require 'xml/libxml'
 
 class WayController < ApplicationController
   require 'xml/libxml'
 

-  before_filter :authorize
+  session :off
+  before_filter :authorize, :only => [:create, :update, :delete]
+  before_filter :check_write_availability, :only => [:create, :update, :delete]
+  before_filter :check_read_availability, :except => [:create, :update, :delete]
+  after_filter :compress_output

 
   def create
 
   def create

-    if request.put?
-      way = Way.from_xml(request.raw_post, true)
+    begin
+      if request.put?
+        way = Way.from_xml(request.raw_post, true)

 
 

-      if way
-        way.user_id = @user.id
-        if way.save_with_history
-          render :text => way.id
+        if way
+          way.create_with_history @user
+          render :text => way.id.to_s, :content_type => "text/plain"

         else
         else

-          render :nothing => true, :status => 500
+          render :nothing => true, :status => :bad_request

         end
         end

-        return

       else
       else

-        render :nothing => true, :status => 400 # if we got here the doc didnt parse
-        return
+        render :nothing => true, :status => :method_not_allowed

       end
       end

+    rescue OSM::APIError => ex
+      render ex.render_opts

     end
     end

-
-    render :nothing => true, :status => 500 # something went very wrong

   end
 
   end
 

-  def rest
-    unless Way.exists?(params[:id])
-      render :nothing => true, :status => 404
-      return
+  def read
+    begin
+      way = Way.find(params[:id])
+
+      response.headers['Last-Modified'] = way.timestamp.rfc822
+
+      if way.visible
+        render :text => way.to_xml.to_s, :content_type => "text/xml"
+      else
+        render :text => "", :status => :gone
+      end
+    rescue OSM::APIError => ex
+      render ex.render_opts
+    rescue ActiveRecord::RecordNotFound
+      render :nothing => true, :status => :not_found

     end
     end

+  end

 
 

-    way = Way.find(params[:id])
-    case request.method
-   
-    when :get
-      unless way.visible
-        render :nothing => true, :status => 410
-        return
+  def update
+    begin
+      way = Way.find(params[:id])
+      new_way = Way.from_xml(request.raw_post)
+
+      if new_way and new_way.id == way.id
+        way.update_from(new_way, @user)
+        render :text => way.version.to_s, :content_type => "text/plain"
+      else
+        render :nothing => true, :status => :bad_request

       end
       end

-      render :text => way.to_xml.to_s
+    rescue OSM::APIError => ex
+      render ex.render_opts
+    rescue ActiveRecord::RecordNotFound
+      render :nothing => true, :status => :not_found
+    end
+  end

 
 

-    when :delete
-      unless way.visible
-        render :nothing => true, :status => 410
-        return
+  # This is the API call to delete a way
+  def delete
+    begin
+      way = Way.find(params[:id])
+      new_way = Way.from_xml(request.raw_post)
+
+      if new_way and new_way.id == way.id
+        way.delete_with_history!(new_way, @user)
+        render :text => way.version.to_s, :content_type => "text/plain"
+      else
+        render :nothing => true, :status => :bad_request

       end
       end

+    rescue OSM::APIError => ex
+      render ex.render_opts
+    rescue ActiveRecord::RecordNotFound
+      render :nothing => true, :status => :not_found
+    end
+  end

 
 

-      way.visible = false
-      way.save_with_history
-      render :nothing => true
-      return
-    when :put
-      way = Way.from_xml(request.raw_post, true)
-
-      if way
-        way_in_db = Way.find(way.id)
-        if way_in_db
-          way_in_db.user_id = @user.id
-          way_in_db.tags = way.tags
-          way_in_db.segs = way.segs
-          way_in_db.timestamp = way.timestamp
-          way_in_db.visible = true
-          if way_in_db.save_with_history
-            render :text => way.id
-          else
-            render :nothing => true, :status => 500
-          end
-          return
-        else
-          render :nothing => true, :status => 404 # way doesn't exist yet
+  def full
+    begin
+      way = Way.find(params[:id])
+
+      if way.visible
+        nd_ids = way.nds + [-1]
+        nodes = Node.find(:all, :conditions => ["visible = ? AND id IN (#{nd_ids.join(',')})", true])
+
+        # Render
+        doc = OSM::API.new.get_xml_doc
+        nodes.each do |node|
+          doc.root << node.to_xml_node()

         end
         end

+        doc.root << way.to_xml_node()
+
+        render :text => doc.to_s, :content_type => "text/xml"

       else
       else

-        render :nothing => true, :status => 400 # if we got here the doc didnt parse
-        return
+        render :text => "", :status => :gone
+      end
+    rescue ActiveRecord::RecordNotFound
+      render :nothing => true, :status => :not_found
+    end
+  end
+
+  def ways
+    begin
+      ids = params['ways'].split(',').collect { |w| w.to_i }
+    rescue
+      ids = []
+    end
+
+    if ids.length > 0
+      doc = OSM::API.new.get_xml_doc
+
+      Way.find(ids).each do |way|
+        doc.root << way.to_xml_node

       end
       end

+
+      render :text => doc.to_s, :content_type => "text/xml"
+    else
+      render :nothing => true, :status => :bad_request
+    end
+  end
+
+  ##
+  # returns all the ways which are currently using the node given in the 
+  # :id parameter. note that this used to return deleted ways as well, but
+  # this seemed not to be the expected behaviour, so it was removed.
+  def ways_for_node
+    wayids = WayNode.find(:all, 
+                          :conditions => ['node_id = ?', params[:id]]
+                          ).collect { |ws| ws.id[0] }.uniq
+
+    doc = OSM::API.new.get_xml_doc
+
+    Way.find(wayids).each do |way|
+      doc.root << way.to_xml_node if way.visible

     end
     end

+
+    render :text => doc.to_s, :content_type => "text/xml"

   end
 end
   end
 end