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

diff --git a/app/controllers/user_preference_controller.rb b/app/controllers/user_preference_controller.rb
index b22c522402e581cc54a1572cd6bee2757aaff42e..d02313497ef61408eb1667852c95abaa4e386366 100644 (file)
--- a/app/controllers/user_preference_controller.rb
+++ b/app/controllers/user_preference_controller.rb
@@ -1,8 +1,43 @@
+# Update and read user preferences, which are arbitrayr key/val pairs
 class UserPreferenceController < ApplicationController
   before_filter :authorize
+  before_filter :require_allow_read_prefs, :only => [:read_one, :read]
+  before_filter :require_allow_write_prefs, :except => [:read_one, :read]
 
-  def read
+  def read_one
+    pref = UserPreference.find(@user.id, params[:preference_key])
+
+    render :text => pref.v.to_s
+  rescue ActiveRecord::RecordNotFound => ex
+    render :text => 'OH NOES! PREF NOT FOUND!', :status => :not_found
+  end
+
+  def update_one
+    begin
+      pref = UserPreference.find(@user.id, params[:preference_key])
+      pref.v = request.raw_post.chomp
+      pref.save
+    rescue ActiveRecord::RecordNotFound 
+      pref = UserPreference.new
+      pref.user = @user
+      pref.k = params[:preference_key]
+      pref.v = request.raw_post.chomp
+      pref.save
+    end
+
+    render :nothing => true
+  end
 
+  def delete_one
+    UserPreference.delete(@user.id, params[:preference_key])
+
+    render :nothing => true
+  rescue ActiveRecord::RecordNotFound => ex
+    render :text => "param: #{params[:preference_key]} not found", :status => :not_found
+  end
+
+  # print out all the preferences as a big xml block
+  def read
     doc = OSM::API.new.get_xml_doc
 
     prefs = @user.preferences
@@ -15,54 +50,50 @@ class UserPreferenceController < ApplicationController
 
     doc.root << el1
     render :text => doc.to_s, :content_type => "text/xml"
-
   end
 
+  # update the entire set of preferences
   def update
     begin
-      p = XML::Parser.new
-      p.string = request.raw_post
-      doc = p.parse
-
-      prefs = []
-
-      keyhash = {}
-
-      doc.find('//preferences/preference').each do |pt|
-        pref = UserPreference.new
-        
-        unless keyhash[pt['k']].nil? # already have that key
-          render :text => 'OH NOES! CAN HAS UNIQUE KEYS?', :status => :not_acceptable
-          return
-        end
-        
-        keyhash[pt['k']] = 1
-
-        pref.k = pt['k']
-        pref.v = pt['v']
-        pref.user_id = @user.id
-        prefs << pref
-      end
+      p = XML::Parser.string(request.raw_post)
+    rescue LibXML::XML::Error, ArgumentError => ex
+      raise OSM::APIBadXMLError.new("preferences", xml, ex.message)
+    end
+    doc = p.parse
 
-      if prefs.size > 150
-        render :text => 'Too many preferences', :status => :request_entity_too_large
-        return
-      end
+    prefs = []
 
-      # kill the existing ones
-      UserPreference.delete_all(['user_id = ?', @user.id])
+    keyhash = {}
 
-      # save the new ones
-      prefs.each do |pref|
-        pref.save!
+    doc.find('//preferences/preference').each do |pt|
+      pref = UserPreference.new
+
+      unless keyhash[pt['k']].nil? # already have that key
+        render :text => 'OH NOES! CAN HAS UNIQUE KEYS?', :status => :not_acceptable
       end
 
-    rescue Exception => ex
-      render :text => 'OH NOES! FAIL!: ' + ex.to_s, :status => :internal_server_error
-      return
+      keyhash[pt['k']] = 1
+
+      pref.k = pt['k']
+      pref.v = pt['v']
+      pref.user_id = @user.id
+      prefs << pref
     end
 
+    if prefs.size > 150
+      render :text => 'Too many preferences', :status => :request_entity_too_large
+    end
+
+    # kill the existing ones
+    UserPreference.delete_all(['user_id = ?', @user.id])
+
+    # save the new ones
+    prefs.each do |pref|
+      pref.save!
+    end
     render :nothing => true
-  end
 
+  rescue Exception => ex
+    render :text => 'OH NOES! FAIL!: ' + ex.to_s, :status => :internal_server_error
+  end
 end