Update bundle

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

diff --git a/app/controllers/changeset_controller.rb b/app/controllers/changeset_controller.rb
index 8789476dbf4a4def010df3b46cc793ccf9f2a540..9a4271621af42fea234e38928ee28ee04bb720a4 100644 (file)
--- a/app/controllers/changeset_controller.rb
+++ b/app/controllers/changeset_controller.rb
@@ -4,20 +4,18 @@ class ChangesetController < ApplicationController
   layout 'site'
   require 'xml/libxml'
 
   layout 'site'
   require 'xml/libxml'
 

-  before_filter :authorize_web, :only => [:list]
-  before_filter :set_locale, :only => [:list]
+  skip_before_filter :verify_authenticity_token, :except => [:list]
+  before_filter :authorize_web, :only => [:list, :feed]
+  before_filter :set_locale, :only => [:list, :feed]

   before_filter :authorize, :only => [:create, :update, :delete, :upload, :include, :close]
   before_filter :require_allow_write_api, :only => [:create, :update, :delete, :upload, :include, :close]
   before_filter :require_public_data, :only => [:create, :update, :delete, :upload, :include, :close]
   before_filter :check_api_writable, :only => [:create, :update, :delete, :upload, :include]
   before_filter :authorize, :only => [:create, :update, :delete, :upload, :include, :close]
   before_filter :require_allow_write_api, :only => [:create, :update, :delete, :upload, :include, :close]
   before_filter :require_public_data, :only => [:create, :update, :delete, :upload, :include, :close]
   before_filter :check_api_writable, :only => [:create, :update, :delete, :upload, :include]

-  before_filter :check_api_readable, :except => [:create, :update, :delete, :upload, :download, :query, :list]
-  before_filter(:only => [:list]) { |c| c.check_database_readable(true) }
+  before_filter :check_api_readable, :except => [:create, :update, :delete, :upload, :download, :query, :list, :feed]
+  before_filter(:only => [:list, :feed]) { |c| c.check_database_readable(true) }

   after_filter :compress_output
   after_filter :compress_output

-  around_filter :api_call_handle_error, :except => [:list]
-  around_filter :web_timeout, :only => [:list]
-
-  # Help methods for checking boundary sanity and area size
-  include MapBoundary
+  around_filter :api_call_handle_error, :except => [:list, :feed]
+  around_filter :web_timeout, :only => [:list, :feed]

 
   # Helper methods for checking consistency
   include ConsistencyValidations
 
   # Helper methods for checking consistency
   include ConsistencyValidations


@@ -145,10 +143,11 @@ class ChangesetController < ApplicationController
   def download
     changeset = Changeset.find(params[:id])
     
   def download
     changeset = Changeset.find(params[:id])
     

-    # get all the elements in the changeset and stick them in a big array.
-    elements = [changeset.old_nodes, 
-                changeset.old_ways, 
-                changeset.old_relations].flatten
+    # get all the elements in the changeset which haven't been redacted
+    # and stick them in a big array.
+    elements = [changeset.old_nodes.unredacted, 
+                changeset.old_ways.unredacted, 
+                changeset.old_relations.unredacted].flatten

     
     # sort the elements by timestamp and version number, as this is the 
     # almost sensible ordering available. this would be much nicer if 
     
     # sort the elements by timestamp and version number, as this is the 
     # almost sensible ordering available. this would be much nicer if 


@@ -176,18 +175,12 @@ class ChangesetController < ApplicationController
           created = XML::Node.new "create"
           created << elt.to_xml_node
         else
           created = XML::Node.new "create"
           created << elt.to_xml_node
         else

-          # get the previous version from the element history
-          prev_elt = elt.class.find(:first, :conditions => 
-                                    ['id = ? and version = ?',
-                                     elt.id, elt.version])

           unless elt.visible
           unless elt.visible

-            # if the element isn't visible then it must have been deleted, so
-            # output the *previous* XML
+            # if the element isn't visible then it must have been deleted

             deleted = XML::Node.new "delete"
             deleted = XML::Node.new "delete"

-            deleted << prev_elt.to_xml_node
+            deleted << elt.to_xml_node

           else
           else

-            # must be a modify, for which we don't need the previous version
-            # yet...
+            # must be a modify

             modified = XML::Node.new "modify"
             modified << elt.to_xml_node
           end
             modified = XML::Node.new "modify"
             modified << elt.to_xml_node
           end


@@ -200,22 +193,25 @@ class ChangesetController < ApplicationController
   ##
   # query changesets by bounding box, time, user or open/closed status.
   def query
   ##
   # query changesets by bounding box, time, user or open/closed status.
   def query

+    # find any bounding box
+    if params['bbox']
+      bbox = BoundingBox.from_bbox_params(params)
+    end
+

     # create the conditions that the user asked for. some or all of
     # these may be nil.
     # create the conditions that the user asked for. some or all of
     # these may be nil.

-    conditions = conditions_bbox(params['bbox'])
-    conditions = cond_merge conditions, conditions_user(params['user'], params['display_name'])
-    conditions = cond_merge conditions, conditions_time(params['time'])
-    conditions = cond_merge conditions, conditions_open(params['open'])
-    conditions = cond_merge conditions, conditions_closed(params['closed'])
+    changesets = Changeset.scoped
+    changesets = conditions_bbox(changesets, bbox)
+    changesets = conditions_user(changesets, params['user'], params['display_name'])
+    changesets = conditions_time(changesets, params['time'])
+    changesets = conditions_open(changesets, params['open'])
+    changesets = conditions_closed(changesets, params['closed'])

 
     # create the results document
     results = OSM::API.new.get_xml_doc
 
     # add all matching changesets to the XML results document
 
     # create the results document
     results = OSM::API.new.get_xml_doc
 
     # add all matching changesets to the XML results document

-    Changeset.find(:all, 
-                   :conditions => conditions, 
-                   :limit => 100,
-                   :order => 'created_at desc').each do |cs|
+    changesets.order("created_at DESC").limit(100).each do |cs|

       results.root << cs.to_xml_node
     end
 
       results.root << cs.to_xml_node
     end
 


@@ -247,41 +243,55 @@ class ChangesetController < ApplicationController
     end
   end
 
     end
   end
 

-  
-  

   ##
   # list edits (open changesets) in reverse chronological order
   def list
     if request.format == :atom and params[:page]
       redirect_to params.merge({ :page => nil }), :status => :moved_permanently
     else
   ##
   # list edits (open changesets) in reverse chronological order
   def list
     if request.format == :atom and params[:page]
       redirect_to params.merge({ :page => nil }), :status => :moved_permanently
     else

-      conditions = conditions_nonempty
+      changesets = conditions_nonempty(Changeset.scoped)

 
       if params[:display_name]
 
       if params[:display_name]

-        user = User.find_by_display_name(params[:display_name], :conditions => { :status => ["active", "confirmed"] })
+        user = User.find_by_display_name(params[:display_name])

         
         

-        if user 
+        if user and user.active?

           if user.data_public? or user == @user
           if user.data_public? or user == @user

-            conditions = cond_merge conditions, ['user_id = ?', user.id]
+            changesets = changesets.where(:user_id => user.id)

           else
           else

-            conditions = cond_merge conditions, ['false']
+            changesets = changesets.where("false")

           end
           end

-        elsif request.format == :html
-          @title = t 'user.no_such_user.title'
-          @not_found_user = params[:display_name]
-          render :template => 'user/no_such_user', :status => :not_found
+        else
+          render_unknown_user params[:display_name]
+          return

         end
       end
       
         end
       end
       

+      if params[:friends]
+        if @user
+          changesets = changesets.where(:user_id => @user.friend_users.public)
+        elsif request.format == :html
+          require_user
+          return
+        end
+      end
+
+      if params[:nearby]
+        if @user
+          changesets = changesets.where(:user_id => @user.nearby)
+        elsif request.format == :html
+          require_user
+          return
+        end
+      end
+

       if params[:bbox]
       if params[:bbox]

-        bbox = params[:bbox]
+        bbox = BoundingBox.from_bbox_params(params)

       elsif params[:minlon] and params[:minlat] and params[:maxlon] and params[:maxlat]
       elsif params[:minlon] and params[:minlat] and params[:maxlon] and params[:maxlat]

-        bbox = params[:minlon] + ',' + params[:minlat] + ',' + params[:maxlon] + ',' + params[:maxlat]
+        bbox = BoundingBox.from_lon_lat_params(params)

       end
       end

-      
+

       if bbox
       if bbox

-        conditions = cond_merge conditions, conditions_bbox(bbox)
-        bbox = BoundingBox.from_s(bbox)
+        changesets = conditions_bbox(changesets, bbox)

         bbox_link = render_to_string :partial => "bbox", :object => bbox
       end
       
         bbox_link = render_to_string :partial => "bbox", :object => bbox
       end
       


@@ -289,7 +299,15 @@ class ChangesetController < ApplicationController
         user_link = render_to_string :partial => "user", :object => user
       end
       
         user_link = render_to_string :partial => "user", :object => user
       end
       

-      if user and bbox
+      if params[:friends] and @user
+        @title =  t 'changeset.list.title_friend'
+        @heading =  t 'changeset.list.heading_friend'
+        @description = t 'changeset.list.description_friend'
+      elsif params[:nearby] and @user
+        @title = t 'changeset.list.title_nearby'
+        @heading = t 'changeset.list.heading_nearby'
+        @description = t 'changeset.list.description_nearby'
+      elsif user and bbox

         @title =  t 'changeset.list.title_user_bbox', :user => user.display_name, :bbox => bbox.to_s
         @heading =  t 'changeset.list.heading_user_bbox', :user => user.display_name, :bbox => bbox.to_s
         @description = t 'changeset.list.description_user_bbox', :user => user_link, :bbox => bbox_link
         @title =  t 'changeset.list.title_user_bbox', :user => user.display_name, :bbox => bbox.to_s
         @heading =  t 'changeset.list.heading_user_bbox', :user => user.display_name, :bbox => bbox.to_s
         @description = t 'changeset.list.description_user_bbox', :user => user_link, :bbox => bbox_link


@@ -310,59 +328,42 @@ class ChangesetController < ApplicationController
       @page = (params[:page] || 1).to_i
       @page_size = 20
 
       @page = (params[:page] || 1).to_i
       @page_size = 20
 

-      @bbox = bbox
-      
-      @edits = Changeset.find(:all,
-                              :include => [:user, :changeset_tags],
-                              :conditions => conditions,
-                              :order => "changesets.created_at DESC",
-                              :offset => (@page - 1) * @page_size,
-                              :limit => @page_size)
+      @edits = changesets.order("changesets.created_at DESC").offset((@page - 1) * @page_size).limit(@page_size).preload(:user, :changeset_tags)
+
+      render :action => :list

     end
   end
 
     end
   end
 

+  ##
+  # list edits as an atom feed
+  def feed
+    list
+  end
+

 private
   #------------------------------------------------------------
   # utility functions below.
   #------------------------------------------------------------  
 
   ##
 private
   #------------------------------------------------------------
   # utility functions below.
   #------------------------------------------------------------  
 
   ##

-  # merge two conditions
-  def cond_merge(a, b)
-    if a and b
-      a_str = a.shift
-      b_str = b.shift
-      return [ a_str + " AND " + b_str ] + a + b
-    elsif a 
-      return a
-    else b
-      return b
-    end
-  end
-
-  ##
-  # if a bounding box was specified then parse it and do some sanity 
-  # checks. this is mostly the same as the map call, but without the 
-  # area restriction.
-  def conditions_bbox(bbox)
-    unless bbox.nil?
-      raise OSM::APIBadUserInput.new("Bounding box should be min_lon,min_lat,max_lon,max_lat") unless bbox.count(',') == 3
-      bbox = sanitise_boundaries(bbox.split(/,/))
-      raise OSM::APIBadUserInput.new("Minimum longitude should be less than maximum.") unless bbox[0] <= bbox[2]
-      raise OSM::APIBadUserInput.new("Minimum latitude should be less than maximum.") unless bbox[1] <= bbox[3]
-      return ['min_lon < ? and max_lon > ? and min_lat < ? and max_lat > ?',
-              (bbox[2] * GeoRecord::SCALE).to_i,
-              (bbox[0] * GeoRecord::SCALE).to_i,
-              (bbox[3] * GeoRecord::SCALE).to_i,
-              (bbox[1] * GeoRecord::SCALE).to_i]
+  # if a bounding box was specified do some sanity checks.
+  # restrict changesets to those enclosed by a bounding box
+  # we need to return both the changesets and the bounding box
+  def conditions_bbox(changesets, bbox)
+    if  bbox
+      bbox.check_boundaries
+      bbox = bbox.to_scaled
+      return changesets.where("min_lon < ? and max_lon > ? and min_lat < ? and max_lat > ?",
+                              bbox.max_lon.to_i, bbox.min_lon.to_i,
+                              bbox.max_lat.to_i, bbox.min_lat.to_i)

     else
     else

-      return nil
+      return changesets

     end
   end
 
   ##
   # restrict changesets to those by a particular user
     end
   end
 
   ##
   # restrict changesets to those by a particular user

-  def conditions_user(user, name)
+  def conditions_user(changesets, user, name)

     unless user.nil? and name.nil?
       # shouldn't provide both name and UID
       raise OSM::APIBadUserInput.new("provide either the user ID or display name, but not both") if user and name
     unless user.nil? and name.nil?
       # shouldn't provide both name and UID
       raise OSM::APIBadUserInput.new("provide either the user ID or display name, but not both") if user and name


@@ -388,15 +389,15 @@ private
         
         raise OSM::APINotFoundError if @user.nil? or @user.id != u.id
       end
         
         raise OSM::APINotFoundError if @user.nil? or @user.id != u.id
       end

-      return ['user_id = ?', u.id]
+      return changesets.where(:user_id => u.id)

     else
     else

-      return nil
+      return changesets

     end
   end
 
   ##
   # restrict changes to those closed during a particular time period
     end
   end
 
   ##
   # restrict changes to those closed during a particular time period

-  def conditions_time(time) 
+  def conditions_time(changesets, time) 

     unless time.nil?
       # if there is a range, i.e: comma separated, then the first is 
       # low, second is high - same as with bounding boxes.
     unless time.nil?
       # if there is a range, i.e: comma separated, then the first is 
       # low, second is high - same as with bounding boxes.


@@ -406,13 +407,13 @@ private
         raise OSM::APIBadUserInput.new("bad time range") if times.size != 2 
 
         from, to = times.collect { |t| DateTime.parse(t) }
         raise OSM::APIBadUserInput.new("bad time range") if times.size != 2 
 
         from, to = times.collect { |t| DateTime.parse(t) }

-        return ['closed_at >= ? and created_at <= ?', from, to]
+        return changesets.where("closed_at >= ? and created_at <= ?", from, to)

       else
         # if there is no comma, assume its a lower limit on time
       else
         # if there is no comma, assume its a lower limit on time

-        return ['closed_at >= ?', DateTime.parse(time)]
+        return changesets.where("closed_at >= ?", DateTime.parse(time))

       end
     else
       end
     else

-      return nil
+      return changesets

     end
     # stupid DateTime seems to throw both of these for bad parsing, so
     # we have to catch both and ensure the correct code path is taken.
     end
     # stupid DateTime seems to throw both of these for bad parsing, so
     # we have to catch both and ensure the correct code path is taken.


@@ -426,25 +427,33 @@ private
   # return changesets which are open (haven't been closed yet)
   # we do this by seeing if the 'closed at' time is in the future. Also if we've
   # hit the maximum number of changes then it counts as no longer open.
   # return changesets which are open (haven't been closed yet)
   # we do this by seeing if the 'closed at' time is in the future. Also if we've
   # hit the maximum number of changes then it counts as no longer open.

-  # if parameter 'open' is nill then open and closed changsets are returned
-  def conditions_open(open)
-    return open.nil? ? nil : ['closed_at >= ? and num_changes <= ?', 
-                              Time.now.getutc, Changeset::MAX_ELEMENTS]
+  # if parameter 'open' is nill then open and closed changesets are returned
+  def conditions_open(changesets, open)
+    if open.nil?
+      return changesets
+    else
+      return changesets.where("closed_at >= ? and num_changes <= ?", 
+                              Time.now.getutc, Changeset::MAX_ELEMENTS)
+    end

   end
   
   ##
   # query changesets which are closed
   # ('closed at' time has passed or changes limit is hit)
   end
   
   ##
   # query changesets which are closed
   # ('closed at' time has passed or changes limit is hit)

-  def conditions_closed(closed)
-    return closed.nil? ? nil : ['(closed_at < ? or num_changes > ?)', 
-                                Time.now.getutc, Changeset::MAX_ELEMENTS]
+  def conditions_closed(changesets, closed)
+    if closed.nil?
+      return changesets
+    else
+      return changesets.where("closed_at < ? or num_changes > ?", 
+                              Time.now.getutc, Changeset::MAX_ELEMENTS)
+    end

   end
 
   ##
   # eliminate empty changesets (where the bbox has not been set)
   # this should be applied to all changeset list displays
   end
 
   ##
   # eliminate empty changesets (where the bbox has not been set)
   # this should be applied to all changeset list displays

-  def conditions_nonempty()
-    return ['num_changes > 0']
+  def conditions_nonempty(changesets)
+    return changesets.where("num_changes > 0")

   end
   
 end
   end
   
 end