slippy map alpha

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

diff --git a/app/controllers/segment_controller.rb b/app/controllers/segment_controller.rb
index b6e0c661e08a6fb26eec380adc21528307a23464..2bc4f07c740dceea5c0ea92a143def42740281b3 100644 (file)
--- a/app/controllers/segment_controller.rb
+++ b/app/controllers/segment_controller.rb
@@ -1,2 +1,111 @@
 class SegmentController < ApplicationController
+  require 'xml/libxml'
+
+  before_filter :authorize
+
+  def create
+    if request.put?
+      segment = Segment.from_xml(request.raw_post, true)
+
+      if segment
+        
+        segment.user_id = @user.id
+
+        a = Node.find(segment.node_a.to_i)
+        b = Node.find(segment.node_b.to_i)
+        
+        unless a and a.visible and b and b.visible  
+          render :nothing => true, :status => 400
+        end
+
+        if segment.save_with_history
+          render :text => segment.id
+        else
+          render :nothing => true, :status => 500
+        end
+        return
+
+      else
+        render :nothing => true, :status => 400 # if we got here the doc didnt parse
+        return
+      end
+    end
+
+    render :nothing => true, :status => 500 # something went very wrong
+  end
+
+  def rest
+    unless Segment.exists?(params[:id])
+      render :nothing => true, :status => 400
+      return
+    end
+
+    segment = Segment.find(params[:id])
+
+    case request.method
+
+    when :get
+      render :text => segment.to_xml.to_s
+      return
+
+    when :delete
+      if segment.visible
+        segment.visible = 0
+        segment.save_with_history
+        render :nothing => true
+      else
+        render :nothing => true, :status => 410
+      end
+
+    when :put
+      new_segment = Segment.from_xml(request.raw_post)
+
+      segment.timestamp = Time.now
+      segment.user_id = @user.id
+
+      segment.node_a = new_segment.node_a
+      segment.node_b = new_segment.node_b
+      segment.tags = new_segment.tags
+      segment.visible = new_segment.visible
+
+      if segment.id == new_segment.id and segment.save_with_history
+        render :nothing => true, :status => 200
+      else
+        render :nothing => true, :status => 500
+      end
+      return
+    end
+
+  end
+
+  def history
+    segment = Segment.find(params[:id])
+
+    unless segment
+      render :nothing => true, :staus => 404
+      return
+    end
+
+    doc = XML::Document.new
+    doc.encoding = 'UTF-8' 
+    root = XML::Node.new 'osm'
+    root['version'] = '0.4'
+    root['generator'] = 'OpenStreetMap server'
+    doc.root = root
+
+    segment.old_segments.each do |old_segment|
+      el1 = XML::Node.new 'segment'
+      el1['id'] = old_segment.id.to_s
+      el1['from'] = old_segment.node_a.to_s
+      el1['to'] = old_segment.node_b.to_s
+      Segment.split_tags(el1, old_segment.tags)
+      el1['visible'] = old_segment.visible.to_s
+      el1['timestamp'] = old_segment.timestamp.xmlschema
+      root << el1
+    end
+
+    render :text => doc.to_s
+  end
+
+
 end