Adding some more unit test stubs that need filling out. Adding changeset tags fixture...

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

diff --git a/app/controllers/amf_controller.rb b/app/controllers/amf_controller.rb
index 4ec4e660e1bd08d79b38a2f94e349bcd0f4a72c0..4034ce10ddb3769e69e1abcdcc290a5777a707e1 100644 (file)
--- a/app/controllers/amf_controller.rb
+++ b/app/controllers/amf_controller.rb
@@ -10,10 +10,10 @@
 #
 # == General structure
 #
 #
 # == General structure
 #

-# Apart from the talk method (which distributes the requests from the
-# AMF message), each method generally takes arguments in the order they were 
-# sent by the Potlatch SWF. Do not assume typing has been preserved. Methods 
-# all return an array to the SWF.
+# Apart from the amf_read and amf_write methods (which distribute the requests
+# from the AMF message), each method generally takes arguments in the order 
+# they were sent by the Potlatch SWF. Do not assume typing has been preserved. 
+# Methods all return an array to the SWF.

 # 
 # == Debugging
 # 
 # 
 # == Debugging
 # 


@@ -22,30 +22,27 @@
 #      return(-2,"message")            <-- also asks the user to e-mail me
 # 
 # To write to the Rails log, use RAILS_DEFAULT_LOGGER.info("message").
 #      return(-2,"message")            <-- also asks the user to e-mail me
 # 
 # To write to the Rails log, use RAILS_DEFAULT_LOGGER.info("message").

-#
-# == To do
-# 
-# - Check authentication
-# - Check the right things are being written to the database!

 
 class AmfController < ApplicationController
   require 'stringio'
 
   include Potlatch
 
 
 class AmfController < ApplicationController
   require 'stringio'
 
   include Potlatch
 

+  # Help methods for checking boundary sanity and area size
+  include MapBoundary
+

   session :off
   before_filter :check_write_availability
 
   session :off
   before_filter :check_write_availability
 

-  # Main AMF handler: processes the raw AMF string (using AMF library) and
+  # Main AMF handlers: process the raw AMF string (using AMF library) and

   # calls each action (private method) accordingly.
   # calls each action (private method) accordingly.

+  # ** FIXME: refactor to reduce duplication of code across read/write

   
   

-  def talk
-       req=StringIO.new(request.raw_post+0.chr)        # Get POST data as request
-                                                                                               # (cf http://www.ruby-forum.com/topic/122163)
-       req.read(2)                                                                     # Skip version indicator and client ID
-       results={}                                                                      # Results of each body
-       renumberednodes={}                                                      # Shared across repeated putways
-       renumberedways={}                                                       # Shared across repeated putways
+  def amf_read
+       req=StringIO.new(request.raw_post+0.chr)# Get POST data as request
+                                                                                       # (cf http://www.ruby-forum.com/topic/122163)
+       req.read(2)                                                             # Skip version indicator and client ID
+       results={}                                                              # Results of each body

 
        # Parse request
 
 
        # Parse request
 


@@ -64,6 +61,7 @@ class AmfController < ApplicationController
          index=AMF.getstring(req)                              #  | get index in response sequence
          bytes=AMF.getlong(req)                                #  | get total size in bytes
          args=AMF.getvalue(req)                                #  | get response (probably an array)
          index=AMF.getstring(req)                              #  | get index in response sequence
          bytes=AMF.getlong(req)                                #  | get total size in bytes
          args=AMF.getvalue(req)                                #  | get response (probably an array)

+      logger.info "Executing AMF #{message}:#{index}"

 
          case message
                when 'getpresets';                      results[index]=AMF.putdata(index,getpresets())
 
          case message
                when 'getpresets';                      results[index]=AMF.putdata(index,getpresets())


@@ -73,6 +71,38 @@ class AmfController < ApplicationController
                when 'getrelation';                     results[index]=AMF.putdata(index,getrelation(args[0].to_i))
                when 'getway_old';                      results[index]=AMF.putdata(index,getway_old(args[0].to_i,args[1].to_i))
                when 'getway_history';          results[index]=AMF.putdata(index,getway_history(args[0].to_i))
                when 'getrelation';                     results[index]=AMF.putdata(index,getrelation(args[0].to_i))
                when 'getway_old';                      results[index]=AMF.putdata(index,getway_old(args[0].to_i,args[1].to_i))
                when 'getway_history';          results[index]=AMF.putdata(index,getway_history(args[0].to_i))

+               when 'getnode_history';         results[index]=AMF.putdata(index,getnode_history(args[0].to_i))
+               when 'findrelations';           results[index]=AMF.putdata(index,findrelations(*args))
+               when 'getpoi';                          results[index]=AMF.putdata(index,getpoi(*args))
+         end
+       end
+    logger.info("encoding AMF results")
+    sendresponse(results)
+  end
+
+  def amf_write
+       req=StringIO.new(request.raw_post+0.chr)
+       req.read(2)
+       results={}
+       renumberednodes={}                                              # Shared across repeated putways
+       renumberedways={}                                               # Shared across repeated putways
+
+       headers=AMF.getint(req)                                 # Read number of headers
+       headers.times do                                                # Read each header
+         name=AMF.getstring(req)                               #  |
+         req.getc                                                              #  | skip boolean
+         value=AMF.getvalue(req)                               #  |
+         header["name"]=value                                  #  |
+       end
+
+       bodies=AMF.getint(req)                                  # Read number of bodies
+       bodies.times do                                                 # Read each body
+         message=AMF.getstring(req)                    #  | get message name
+         index=AMF.getstring(req)                              #  | get index in response sequence
+         bytes=AMF.getlong(req)                                #  | get total size in bytes
+         args=AMF.getvalue(req)                                #  | get response (probably an array)
+
+         case message

                when 'putway';                          r=putway(renumberednodes,*args)
                                                                        renumberednodes=r[3]
                                                                        if r[1] != r[2]
                when 'putway';                          r=putway(renumberednodes,*args)
                                                                        renumberednodes=r[3]
                                                                        if r[1] != r[2]


@@ -80,25 +110,35 @@ class AmfController < ApplicationController
                                                                        end
                                                                        results[index]=AMF.putdata(index,r)
                when 'putrelation';                     results[index]=AMF.putdata(index,putrelation(renumberednodes, renumberedways, *args))
                                                                        end
                                                                        results[index]=AMF.putdata(index,r)
                when 'putrelation';                     results[index]=AMF.putdata(index,putrelation(renumberednodes, renumberedways, *args))

-               when 'deleteway';                       results[index]=AMF.putdata(index,deleteway(args[0],args[1].to_i))
+               when 'deleteway';                       results[index]=AMF.putdata(index,deleteway(*args))

                when 'putpoi';                          results[index]=AMF.putdata(index,putpoi(*args))
                when 'putpoi';                          results[index]=AMF.putdata(index,putpoi(*args))

-               when 'getpoi';                          results[index]=AMF.putdata(index,getpoi(args[0].to_i))
+               when 'startchangeset';          results[index]=AMF.putdata(index,startchangeset(*args))

          end
        end
          end
        end

-
-       # Write out response
-
-       a,b=results.length.divmod(256)
-       render :content_type => "application/x-amf", :text => proc { |response, output| 
-         output.write 0.chr+0.chr+0.chr+0.chr+a.chr+b.chr
-         results.each do |k,v|
-               output.write(v)
-         end
-       }
+    sendresponse(results)

   end
 
   private
 
   end
 
   private
 

+  # Start new changeset
+  
+  def startchangeset(usertoken, cstags, closeid, closecomment)
+       uid = getuserid(usertoken)
+       if !uid then return -1,"You are not logged in, so Potlatch can't write any changes to the database." end
+
+       # close previous changeset and add comment
+       if closeid
+       end
+       
+       # open a new changeset
+       cs = Changeset.new
+       cs.tags = cstags
+       cs.user_id = uid
+       cs.created_at = Time.now
+       cs.save_with_tags!
+       return [0,cs.id]
+  end
+

   # Return presets (default tags, localisation etc.):
   # uses POTLATCH_PRESETS global, set up in OSM::Potlatch.
 
   # Return presets (default tags, localisation etc.):
   # uses POTLATCH_PRESETS global, set up in OSM::Potlatch.
 


@@ -110,105 +150,202 @@ class AmfController < ApplicationController
   # in a given bounding box. Nodes are returned in full; ways and relations 
   # are IDs only. 
 
   # in a given bounding box. Nodes are returned in full; ways and relations 
   # are IDs only. 
 

-  def whichways(xmin,ymin,xmax,ymax) #:doc:
-       xmin-=0.01; ymin-=0.01
-       xmax+=0.01; ymax+=0.01
+  def whichways(xmin, ymin, xmax, ymax) #:doc:
+       xmin -= 0.01; ymin -= 0.01
+       xmax += 0.01; ymax += 0.01
+    
+    # check boundary is sane and area within defined
+    # see /config/application.yml
+    begin
+      check_boundaries(xmin, ymin, xmax, ymax)
+    rescue Exception => err
+      # FIXME: report an error rather than just return an empty result
+      return [[],[],[]]
+    end

 
        if POTLATCH_USE_SQL then
 
        if POTLATCH_USE_SQL then

-         way_ids=sql_find_way_ids_in_area(xmin,ymin,xmax,ymax)
-         points=sql_find_pois_in_area(xmin,ymin,xmax,ymax)
-         relation_ids=sql_find_relations_in_area_and_ways(xmin,ymin,xmax,ymax,way_ids)
+         ways = sql_find_ways_in_area(xmin, ymin, xmax, ymax)
+         points = sql_find_pois_in_area(xmin, ymin, xmax, ymax)
+         relation_ids = sql_find_relations_in_area_and_ways(xmin, ymin, xmax, ymax, ways.collect {|x| x[0]})

        else
          # find the way ids in an area
        else
          # find the way ids in an area

-         nodes_in_area = Node.find_by_area(ymin, xmin, ymax, xmax, :conditions => "current_nodes.visible = 1", :include => :ways)
+         nodes_in_area = Node.find_by_area(ymin, xmin, ymax, xmax, :conditions => ["current_nodes.visible = ?", true], :include => :ways)  # ** include causes problems

          way_ids = nodes_in_area.collect { |node| node.way_ids }.flatten.uniq
          way_ids = nodes_in_area.collect { |node| node.way_ids }.flatten.uniq

+         # ** get versions

 
          # find the node ids in an area that aren't part of ways
          nodes_not_used_in_area = nodes_in_area.select { |node| node.ways.empty? }
 
          # find the node ids in an area that aren't part of ways
          nodes_not_used_in_area = nodes_in_area.select { |node| node.ways.empty? }

-         points = nodes_not_used_in_area.collect { |n| [n.id, n.lon, n.lat, n.tags_as_hash] }
+         points = nodes_not_used_in_area.collect { |n| [n.id, n.lon, n.lat, n.tags] }

 
          # find the relations used by those nodes and ways
 
          # find the relations used by those nodes and ways

-         relations = nodes_in_area.collect { |node| node.containing_relations.visible }.flatten +
-                     way_ids.collect { |id| Way.find(id).containing_relations.visible }.flatten
+         relations = Relation.find_for_nodes(nodes_in_area.collect { |n| n.id }, :conditions => {:visible => true}) +
+                  Relation.find_for_ways(way_ids, :conditions => {:visible => true})

          relation_ids = relations.collect { |relation| relation.id }.uniq
        end
 
          relation_ids = relations.collect { |relation| relation.id }.uniq
        end
 

-       [way_ids,points,relation_ids]
+       [ways, points, relation_ids]

   end
 
   # Find deleted ways in current bounding box (similar to whichways, but ways
   # with a deleted node only - not POIs or relations).
 
   end
 
   # Find deleted ways in current bounding box (similar to whichways, but ways
   # with a deleted node only - not POIs or relations).
 

-  def whichways_deleted(xmin,ymin,xmax,ymax) #:doc:
-       xmin-=0.01; ymin-=0.01
-       xmax+=0.01; ymax+=0.01
+  def whichways_deleted(xmin, ymin, xmax, ymax) #:doc:
+       xmin -= 0.01; ymin -= 0.01
+       xmax += 0.01; ymax += 0.01
+
+    # check boundary is sane and area within defined
+    # see /config/application.yml
+    begin
+      check_boundaries(xmin, ymin, xmax, ymax)
+    rescue Exception => err
+      # FIXME: report an error rather than just return an empty result
+      return [[]]
+    end

 
 

-       nodes_in_area = Node.find_by_area(ymin, xmin, ymax,xmax, :conditions => "current_nodes.visible=0 AND current_ways.visible=0", :include => :ways_via_history )
+       nodes_in_area = Node.find_by_area(ymin, xmin, ymax, xmax, :conditions => ["current_ways.visible = ?", false], :include => :ways_via_history)

        way_ids = nodes_in_area.collect { |node| node.ways_via_history_ids }.flatten.uniq
        way_ids = nodes_in_area.collect { |node| node.ways_via_history_ids }.flatten.uniq

+

        [way_ids]
   end
 
   # Get a way including nodes and tags.
        [way_ids]
   end
 
   # Get a way including nodes and tags.

-  # Returns 0 (success), a Potlatch-style array of points, and a hash of tags.
+  # Returns the way id, a Potlatch-style array of points, a hash of tags, and the version number.

 
   def getway(wayid) #:doc:
        if POTLATCH_USE_SQL then
 
   def getway(wayid) #:doc:
        if POTLATCH_USE_SQL then

-         points=sql_get_nodes_in_way(wayid)
-         tags=sql_get_tags_in_way(wayid)
+         points = sql_get_nodes_in_way(wayid)
+         tags = sql_get_tags_in_way(wayid)
+         version = sql_get_way_version(wayid)

        else
          # Ideally we would do ":include => :nodes" here but if we do that
          # then rails only seems to return the first copy of a node when a
          # way includes a node more than once
        else
          # Ideally we would do ":include => :nodes" here but if we do that
          # then rails only seems to return the first copy of a node when a
          # way includes a node more than once

-         points = []
-         way = Way.find(wayid)
-         way.nodes.each do |node|
-           points << [node.lon, node.lat, node.id, nil, node.tags_as_hash]
+      begin
+           way = Way.find(wayid)
+      rescue ActiveRecord::RecordNotFound
+        return [wayid,[],{}]
+      end
+
+      # check case where way has been deleted or doesn't exist
+      return [wayid,[],{}] if way.nil? or !way.visible
+
+         points = way.nodes.collect do |node|
+               nodetags=node.tags
+               nodetags.delete('created_by')
+               [node.lon, node.lat, node.id, nodetags]

          end
          end

-         tags=way.tags
+         tags = way.tags
+         version = way.version

        end
        end

-       [wayid,points,tags]
+
+       [wayid, points, tags, version]

   end
 
   # Get an old version of a way, and all constituent nodes.
   #
   end
 
   # Get an old version of a way, and all constituent nodes.
   #

-  # For undelete (version=0), always uses the most recent version of each node, 
-  # even if it's moved.  For revert (version=1+), uses the node in existence 
+  # For undelete (version<0), always uses the most recent version of each node, 
+  # even if it's moved.  For revert (version >= 0), uses the node in existence 

   # at the time, generating a new id if it's still visible and has been moved/
   # retagged.
   # at the time, generating a new id if it's still visible and has been moved/
   # retagged.

-
-  def getway_old(id,version) #:doc:
-       if version<0
-         old_way = OldWay.find(:first, :conditions => ['visible=1 AND id=?', id], :order => 'version DESC')
-         points = old_way.get_nodes_undelete
+  #
+  # Returns:
+  # 0. success code, 
+  # 1. id, 
+  # 2. array of points, 
+  # 3. hash of tags, 
+  # 4. version, 
+  # 5. is this the current, visible version? (boolean)
+
+  def getway_old(id, version) #:doc:
+       if version < 0
+         old_way = OldWay.find(:first, :conditions => ['visible = ? AND id = ?', true, id], :order => 'version DESC')
+         points = old_way.get_nodes_undelete unless old_way.nil?

        else
        else

-         old_way = OldWay.find(:first, :conditions => ['id=? AND version=?', id, version])
-         points = old_way.get_nodes_revert
+         old_way = OldWay.find(:first, :conditions => ['id = ? AND version = ?', id, version])
+         points = old_way.get_nodes_revert unless old_way.nil?

        end
        end

-       old_way.tags['history']="Retrieved from v#{old_way.version}"
-       [0,id,points,old_way.tags,old_way.version]
+
+    if old_way.nil?
+      return [-1, id, [], {}, -1,0]
+    else
+         curway=Way.find(id)
+         old_way.tags['history'] = "Retrieved from v#{old_way.version}"
+         return [0, id, points, old_way.tags, old_way.version, (curway.version==old_way.version and curway.visible)]
+    end

   end
   
   end
   

-  # Find history of a way. Returns an array of previous versions.
+  # Find history of a way. Returns 'way', id, and 
+  # an array of previous versions.

 
   def getway_history(wayid) #:doc:
 
   def getway_history(wayid) #:doc:

-       history=[]
-       way=Way.find(wayid)
-       way.old_ways.each do |old_way|
-         if old_way.user.data_public then user=old_way.user.display_name else user='anonymous' end
-         history<<[old_way.version,old_way.timestamp.strftime("%d %b %Y, %H:%M"),old_way.visible ? 1 : 0,user]
-       end
-       [history]
+    begin
+         history = Way.find(wayid).old_ways.reverse.collect do |old_way|
+        user_object = old_way.changeset.user
+           user = user_object.data_public? ? user_object.display_name : 'anonymous'
+           uid  = user_object.data_public? ? user_object.id : 0
+           [old_way.version, old_way.timestamp.strftime("%d %b %Y, %H:%M"), old_way.visible ? 1 : 0, user, uid]
+         end
+
+         return ['way',wayid,history]
+    rescue ActiveRecord::RecordNotFound
+      return ['way', wayid, []]
+    end
+  end
+
+  # Find history of a node. Returns 'node', id, and 
+  # an array of previous versions.
+
+  def getnode_history(nodeid) #:doc:
+    begin
+         history = Node.find(nodeid).old_nodes.reverse.collect do |old_node|
+        user_object = old_node.changeset.user
+           user = user_object.data_public? ? user_object.display_name : 'anonymous'
+           uid  = user_object.data_public? ? user_object.id : 0
+           [old_node.version, old_node.timestamp.strftime("%d %b %Y, %H:%M"), old_node.visible ? 1 : 0, user, uid]
+         end
+
+         return ['node',nodeid,history]
+    rescue ActiveRecord::RecordNotFound
+      return ['node', nodeid, []]
+    end

   end
 
   # Get a relation with all tags and members.
   # Returns:
   # 0. relation id,
   # 1. hash of tags,
   end
 
   # Get a relation with all tags and members.
   # Returns:
   # 0. relation id,
   # 1. hash of tags,

-  # 2. list of members.
+  # 2. list of members,
+  # 3. version.

   
   def getrelation(relid) #:doc:
   
   def getrelation(relid) #:doc:

-       rel = Relation.find(relid)
-       [relid,rel.tags,rel.members]
+    begin
+         rel = Relation.find(relid)
+    rescue ActiveRecord::RecordNotFound
+      return [relid, {}, []]
+    end
+
+    return [relid, {}, [], nil] if rel.nil? or !rel.visible
+       [relid, rel.tags, rel.members, rel.version]
+  end
+
+  # Find relations with specified name/id.
+  # Returns array of relations, each in same form as getrelation.
+  
+  def findrelations(searchterm)
+       rels = []
+       if searchterm.to_i>0 then
+         rel = Relation.find(searchterm.to_i)
+         if rel and rel.visible then
+           rels.push([rel.id, rel.tags, rel.members])
+         end
+       else
+         RelationTag.find(:all, :limit => 11, :conditions => ["match(v) against (?)", searchterm] ).each do |t|
+               if t.relation.visible then
+             rels.push([t.relation.id, t.relation.tags, t.relation.members])
+           end
+         end
+       end
+       rels

   end
 
   # Save a relation.
   end
 
   # Save a relation.


@@ -217,16 +354,17 @@ class AmfController < ApplicationController
   # 1. original relation id (unchanged),
   # 2. new relation id.
 
   # 1. original relation id (unchanged),
   # 2. new relation id.
 

-  def putrelation(renumberednodes, renumberedways, usertoken,relid,tags,members,visible) #:doc:
-       uid=getuserid(usertoken)
-       if !uid then return -1,"You are not logged in, so the point could not be saved." end
+  def putrelation(renumberednodes, renumberedways, usertoken, changeset, relid, tags, members, visible) #:doc:
+       uid = getuserid(usertoken)
+       if !uid then return -1,"You are not logged in, so the relation could not be saved." end

 
        relid = relid.to_i
 
        relid = relid.to_i

-       visible = visible.to_i
+       visible = (visible.to_i != 0)

 
        # create a new relation, or find the existing one
        if relid <= 0
          rel = Relation.new
 
        # create a new relation, or find the existing one
        if relid <= 0
          rel = Relation.new

+         rel.version = 0

        else
          rel = Relation.find(relid)
        end
        else
          rel = Relation.find(relid)
        end


@@ -238,18 +376,17 @@ class AmfController < ApplicationController
          if mid < 0
                mid = renumberednodes[mid] if m[0] == 'node'
                mid = renumberedways[mid] if m[0] == 'way'
          if mid < 0
                mid = renumberednodes[mid] if m[0] == 'node'
                mid = renumberedways[mid] if m[0] == 'way'

-               if mid < 0
-                 return -2, "Negative ID unresolved"
-               end

          end
          end

-         typedmembers << [m[0], mid, m[2]]
+      if mid
+           typedmembers << [m[0], mid, m[2]]
+         end

        end
 
        # assign new contents
        rel.members = typedmembers
        rel.tags = tags
        rel.visible = visible
        end
 
        # assign new contents
        rel.members = typedmembers
        rel.tags = tags
        rel.visible = visible

-       rel.user_id = uid
+       rel.changeset_id = changeset

 
        # check it then save it
        # BUG: the following is commented out because it always fails on my
 
        # check it then save it
        # BUG: the following is commented out because it always fails on my


@@ -261,7 +398,7 @@ class AmfController < ApplicationController
          rel.save_with_history!
        #end
 
          rel.save_with_history!
        #end
 

-       [0,relid,rel.id]
+       [0, relid, rel.id]

   end
 
   # Save a way to the database, including all nodes. Any nodes in the previous
   end
 
   # Save a way to the database, including all nodes. Any nodes in the previous


@@ -271,89 +408,103 @@ class AmfController < ApplicationController
   # 0. '0' (code for success),
   # 1. original way id (unchanged),
   # 2. new way id,
   # 0. '0' (code for success),
   # 1. original way id (unchanged),
   # 2. new way id,

-  # 3. hash of renumbered nodes (old id=>new id)
+  # 3. hash of renumbered nodes (old id=>new id),
+  # 4. version

 
 

-  def putway(renumberednodes,usertoken,originalway,points,attributes) #:doc:
+  def putway(renumberednodes, usertoken, changeset, originalway, points, attributes) #:doc:

 
        # -- Initialise and carry out checks
        
 
        # -- Initialise and carry out checks
        

-       uid=getuserid(usertoken)
+       uid = getuserid(usertoken)

        if !uid then return -1,"You are not logged in, so the way could not be saved." end
        if !uid then return -1,"You are not logged in, so the way could not be saved." end

-       originalway=originalway.to_i
+
+       originalway = originalway.to_i

 
        points.each do |a|
 
        points.each do |a|

-         if a[2]==0 or a[2].nil? then return -2,"Server error - node with id 0 found in way #{originalway}." end
-         if a[1]==90 then return -2,"Server error - node with lat -90 found in way #{originalway}." end
+         if a[2] == 0 or a[2].nil? then return -2,"Server error - node with id 0 found in way #{originalway}." end
+         if a[1] == 90 then return -2,"Server error - node with lat -90 found in way #{originalway}." end

        end
 
        end
 

-       if points.length<2 then return -2,"Server error - way is only #{points.length} points long." end
+       if points.length < 2 then return -2,"Server error - way is only #{points.length} points long." end

 
        # -- Get unique nodes
 
 
        # -- Get unique nodes
 

-       if originalway<0
-         way=Way.new
-         uniques=[]
+       if originalway < 0
+         way = Way.new
+         way.version = 0       # otherwise +=1 breaks
+         uniques = []

        else
        else

-         way=Way.find(originalway)
-         uniques=way.unique_nodes
+         way = Way.find(originalway)
+         uniques = way.unshared_node_ids

        end
 
        # -- Compare nodes and save changes to any that have changed
 
        end
 
        # -- Compare nodes and save changes to any that have changed
 

-       nodes=[]
+       nodes = []

 
        points.each do |n|
 
        points.each do |n|

-         lon=n[0].to_f
-         lat=n[1].to_f
-         id =n[2].to_i
-         savenode=false
+         lon = n[0].to_f
+         lat = n[1].to_f
+         id = n[2].to_i
+         savenode = false
+

          if renumberednodes[id]
          if renumberednodes[id]

-           id=renumberednodes[id]
-         elsif id<0
+           id = renumberednodes[id]
+         elsif id < 0

                # Create new node
                # Create new node

-               node=Node.new
-               savenode=true
+               node = Node.new
+               node.version = 0        # otherwise +=1 breaks
+               savenode = true

          else
          else

-               node=Node.find(id)
-               if (!fpcomp(lat,node.lat) or !fpcomp(lon,node.lon) or \
-                       Tags.join(n[4])!=node.tags or node.visible==0)
-                 savenode=true
+               node = Node.find(id)
+               nodetags=node.tags
+               nodetags.delete('created_by')
+               if !fpcomp(lat, node.lat) or !fpcomp(lon, node.lon) or
+                  n[4] != nodetags or !node.visible?
+                 savenode = true

                end
          end
                end
          end

+

          if savenode
          if savenode

-               node.user_id=uid
-           node.lat=lat; node.lon=lon
-           node.tags=Tags.join(n[4])
-           node.visible=true
+               node.changeset_id = changeset
+           node.lat = lat
+        node.lon = lon
+           node.tags = n[4]
+           node.visible = true

            node.save_with_history!
            node.save_with_history!

-               if id!=node.id
-                 renumberednodes[id]=node.id
-                 id=node.id
+
+               if id != node.id
+                 renumberednodes[id] = node.id
+                 id = node.id

            end
          end
            end
          end

-         uniques=uniques-[id]
+
+         uniques = uniques - [id]

          nodes.push(id)
        end
 
        # -- Delete any unique nodes
        
        uniques.each do |n|
          nodes.push(id)
        end
 
        # -- Delete any unique nodes
        
        uniques.each do |n|

-         deleteitemrelations(n,'node')
-         node=Node.find(n)
-         node.user_id=uid
-         node.visible=false
+         deleteitemrelations(n, 'node')
+
+         node = Node.find(n)
+         node.changeset_id = changeset
+         node.visible = false

          node.save_with_history!
        end
 
        # -- Save revised way
 
          node.save_with_history!
        end
 
        # -- Save revised way
 

-       way.tags=attributes
-       way.nds=nodes
-       way.user_id=uid
-       way.visible=true
-       way.save_with_history!
+       if way.tags!=attributes or way.nds!=nodes or !way.visible?
+         way.tags = attributes
+         way.nds = nodes
+         way.changeset_id = changeset
+         way.visible = true
+         way.save_with_history!
+       end

 
 

-       [0,originalway,way.id,renumberednodes]
+       [0, originalway, way.id, renumberednodes, way.version]

   end
 
   # Save POI to the database.
   end
 
   # Save POI to the database.


@@ -361,66 +512,76 @@ class AmfController < ApplicationController
   # Returns:
   # 0. 0 (success),
   # 1. original node id (unchanged),
   # Returns:
   # 0. 0 (success),
   # 1. original node id (unchanged),

-  # 2. new node id.
+  # 2. new node id,
+  # 3. version.

 
 

-  def putpoi(usertoken,id,lon,lat,tags,visible) #:doc:
-       uid=getuserid(usertoken)
+  def putpoi(usertoken, changeset, id, lon, lat, tags, visible) #:doc:
+       uid = getuserid(usertoken)

        if !uid then return -1,"You are not logged in, so the point could not be saved." end
 
        if !uid then return -1,"You are not logged in, so the point could not be saved." end
 

-       id=id.to_i
-       visible=(visible.to_i==1)
+       id = id.to_i
+       visible = (visible.to_i == 1)
+
+       if id > 0 then
+         node = Node.find(id)

 
 

-       if (id>0) then
-         node=Node.find(id)

          if !visible then
            unless node.ways.empty? then return -1,"The point has since become part of a way, so you cannot save it as a POI." end
          if !visible then
            unless node.ways.empty? then return -1,"The point has since become part of a way, so you cannot save it as a POI." end

-           deleteitemrelations(id,'node')
+           deleteitemrelations(id, 'node')

          end
        else
          end
        else

-         node=Node.new
+         node = Node.new
+         node.version = 0

        end
 
        end
 

-       node.user_id = uid
-       node.latitude = (lat*10000000).round
-       node.longitude = (lon*10000000).round
-       node.tags = Tags.join(tags)
-       node.visible=visible
+       node.changeset_id = changeset
+       node.lat = lat
+       node.lon = lon
+       node.tags = tags
+       node.visible = visible

        node.save_with_history!
        node.save_with_history!

-       newid=node.id
-       [0,id,newid]
+
+       [0, id, node.id, node.version]

   end
 
   # Read POI from database
   # (only called on revert: POIs are usually read by whichways).
   #
   end
 
   # Read POI from database
   # (only called on revert: POIs are usually read by whichways).
   #

-  # Returns array of id, long, lat, hash of tags.
+  # Returns array of id, long, lat, hash of tags, version.
+
+  def getpoi(id,version) #:doc:
+       if version>0 then
+         n = OldNode.find(id, :conditions=>['version=?',version])
+       else
+         n = Node.find(id)
+       end

 
 

-  def getpoi(id) #:doc:
-       n = Node.find(id)

        if n
        if n

-         return [n.id, n.lon, n.lat, n.tags_as_hash]
+         return [n.id, n.lon, n.lat, n.tags, n.version]

        else
        else

-         return [nil,nil,nil,'']
+         return [nil, nil, nil, {}, nil]

        end
   end
 
   # Delete way and all constituent nodes. Also removes from any relations.
   # Returns 0 (success), unchanged way id.
 
        end
   end
 
   # Delete way and all constituent nodes. Also removes from any relations.
   # Returns 0 (success), unchanged way id.
 

-  def deleteway(usertoken,way_id) #:doc:
-       uid=getuserid(usertoken)
-       if !uid then return -1,"You are not logged in, so the way could not be deleted." end
+  def deleteway(usertoken, changeset_id, way_id) #:doc:
+       if !getuserid(usertoken) then return -1,"You are not logged in, so the way could not be deleted." end
+
+       way_id = way_id.to_i

 
        # FIXME: would be good not to make two history entries when removing
        #                two nodes from the same relation
 
        # FIXME: would be good not to make two history entries when removing
        #                two nodes from the same relation

-       user = User.find(uid)

        way = Way.find(way_id)
        way = Way.find(way_id)

-       way.unique_nodes.each do |n|
-         deleteitemrelations(n,'node')
+       way.unshared_node_ids.each do |n|
+         deleteitemrelations(n, 'node')

        end
        end

+       deleteitemrelations(way_id, 'way')

 
 

-       way.delete_with_relations_and_nodes_and_history(user)  
-       return [0,way_id]
+       way.delete_with_relations_and_nodes_and_history(changeset_id.to_i)
+
+       [0, way_id]

   end
 
 
   end
 
 


@@ -429,11 +590,13 @@ class AmfController < ApplicationController
 
   # Remove a node or way from all relations
 
 
   # Remove a node or way from all relations
 

-  def deleteitemrelations(objid,type) #:doc:
-       relationids = RelationMember.find(:all, :conditions => ['member_type=? and member_id=?', type, objid]).collect { |ws| ws.id }.uniq
-       relationids.each do |relid|
-         rel=Relation.find(relid)
-         rel.members.delete_if {|x| x[0]==type and x[1]==objid}
+  def deleteitemrelations(objid, type) #:doc:
+       relations = RelationMember.find(:all, 
+                                                                       :conditions => ['member_type = ? and member_id = ?', type, objid], 
+                                                                       :include => :relation).collect { |rm| rm.relation }.uniq
+
+       relations.each do |rel|
+         rel.members.delete_if { |x| x[0] == type and x[1] == objid }

          rel.save_with_history!
        end
   end
          rel.save_with_history!
        end
   end


@@ -468,40 +631,63 @@ class AmfController < ApplicationController
        return ((a/0.0000001).round==(b/0.0000001).round)
   end
 
        return ((a/0.0000001).round==(b/0.0000001).round)
   end
 

+  # Send AMF response
+  
+  def sendresponse(results)
+       a,b=results.length.divmod(256)
+       render :content_type => "application/x-amf", :text => proc { |response, output| 
+         # ** move amf writing loop into here - 
+         # basically we read the messages in first (into an array of some sort),
+         # then iterate through that array within here, and do all the AMF writing
+         output.write 0.chr+0.chr+0.chr+0.chr+a.chr+b.chr
+         results.each do |k,v|
+               output.write(v)
+         end
+       }
+  end
+

 
   # ====================================================================
   # Alternative SQL queries for getway/whichways
 
 
   # ====================================================================
   # Alternative SQL queries for getway/whichways
 

-  def sql_find_way_ids_in_area(xmin,ymin,xmax,ymax)
+  def sql_find_ways_in_area(xmin,ymin,xmax,ymax)

        sql=<<-EOF
        sql=<<-EOF

-  SELECT DISTINCT current_way_nodes.id AS wayid
+  SELECT DISTINCT current_ways.id AS wayid,current_ways.version AS version

                FROM current_way_nodes
   INNER JOIN current_nodes ON current_nodes.id=current_way_nodes.node_id
   INNER JOIN current_ways  ON current_ways.id =current_way_nodes.id
                FROM current_way_nodes
   INNER JOIN current_nodes ON current_nodes.id=current_way_nodes.node_id
   INNER JOIN current_ways  ON current_ways.id =current_way_nodes.id

-          WHERE current_nodes.visible=1 
-                AND current_ways.visible=1 
+          WHERE current_nodes.visible=TRUE 
+                AND current_ways.visible=TRUE 

                 AND #{OSM.sql_for_area(ymin, xmin, ymax, xmax, "current_nodes.")}
        EOF
                 AND #{OSM.sql_for_area(ymin, xmin, ymax, xmax, "current_nodes.")}
        EOF

-       return ActiveRecord::Base.connection.select_all(sql).collect { |a| a['wayid'].to_i }
+       return ActiveRecord::Base.connection.select_all(sql).collect { |a| [a['wayid'].to_i,a['version'].to_i] }

   end
        
   def sql_find_pois_in_area(xmin,ymin,xmax,ymax)
   end
        
   def sql_find_pois_in_area(xmin,ymin,xmax,ymax)

+       pois=[]

        sql=<<-EOF
        sql=<<-EOF

-                 SELECT current_nodes.id,current_nodes.latitude*0.0000001 AS lat,current_nodes.longitude*0.0000001 AS lon,current_nodes.tags 
+                 SELECT current_nodes.id,current_nodes.latitude*0.0000001 AS lat,current_nodes.longitude*0.0000001 AS lon,current_nodes.version 

                        FROM current_nodes 
  LEFT OUTER JOIN current_way_nodes cwn ON cwn.node_id=current_nodes.id 
                        FROM current_nodes 
  LEFT OUTER JOIN current_way_nodes cwn ON cwn.node_id=current_nodes.id 

-                  WHERE current_nodes.visible=1
+                  WHERE current_nodes.visible=TRUE

                         AND cwn.id IS NULL
                         AND #{OSM.sql_for_area(ymin, xmin, ymax, xmax, "current_nodes.")}
        EOF
                         AND cwn.id IS NULL
                         AND #{OSM.sql_for_area(ymin, xmin, ymax, xmax, "current_nodes.")}
        EOF

-       return ActiveRecord::Base.connection.select_all(sql).collect { |n| [n['id'].to_i,n['lon'].to_f,n['lat'].to_f,tagstring_to_hash(n['tags'])] }
+       ActiveRecord::Base.connection.select_all(sql).each do |row|
+         poitags={}
+         ActiveRecord::Base.connection.select_all("SELECT k,v FROM current_node_tags WHERE id=#{row['id']}").each do |n|
+               poitags[n['k']]=n['v']
+         end
+         pois << [row['id'].to_i, row['lon'].to_f, row['lat'].to_f, poitags, row['version'].to_i]
+       end
+       pois

   end
        
   def sql_find_relations_in_area_and_ways(xmin,ymin,xmax,ymax,way_ids)
        # ** It would be more Potlatchy to get relations for nodes within ways
        #    during 'getway', not here
        sql=<<-EOF
   end
        
   def sql_find_relations_in_area_and_ways(xmin,ymin,xmax,ymax,way_ids)
        # ** It would be more Potlatchy to get relations for nodes within ways
        #    during 'getway', not here
        sql=<<-EOF

-         SELECT DISTINCT cr.id AS relid 
+         SELECT DISTINCT cr.id AS relid,cr.version AS version 

                FROM current_relations cr
   INNER JOIN current_relation_members crm ON crm.id=cr.id 
   INNER JOIN current_nodes cn ON crm.member_id=cn.id AND crm.member_type='node' 
                FROM current_relations cr
   INNER JOIN current_relation_members crm ON crm.id=cr.id 
   INNER JOIN current_nodes cn ON crm.member_id=cn.id AND crm.member_type='node' 


@@ -510,28 +696,33 @@ class AmfController < ApplicationController
        unless way_ids.empty?
          sql+=<<-EOF
           UNION
        unless way_ids.empty?
          sql+=<<-EOF
           UNION

-         SELECT DISTINCT cr.id AS relid
+         SELECT DISTINCT cr.id AS relid,cr.version AS version

                FROM current_relations cr
   INNER JOIN current_relation_members crm ON crm.id=cr.id
           WHERE crm.member_type='way' 
                 AND crm.member_id IN (#{way_ids.join(',')})
          EOF
        end
                FROM current_relations cr
   INNER JOIN current_relation_members crm ON crm.id=cr.id
           WHERE crm.member_type='way' 
                 AND crm.member_id IN (#{way_ids.join(',')})
          EOF
        end

-       return ActiveRecord::Base.connection.select_all(sql).collect { |a| a['relid'].to_i }.uniq
+       return ActiveRecord::Base.connection.select_all(sql).collect { |a| [a['relid'].to_i,a['version'].to_i] }

   end
        
   def sql_get_nodes_in_way(wayid)
        points=[]
        sql=<<-EOF
   end
        
   def sql_get_nodes_in_way(wayid)
        points=[]
        sql=<<-EOF

-               SELECT latitude*0.0000001 AS lat,longitude*0.0000001 AS lon,current_nodes.id,tags 
+               SELECT latitude*0.0000001 AS lat,longitude*0.0000001 AS lon,current_nodes.id 

                  FROM current_way_nodes,current_nodes 
                 WHERE current_way_nodes.id=#{wayid.to_i} 
                   AND current_way_nodes.node_id=current_nodes.id 
                  FROM current_way_nodes,current_nodes 
                 WHERE current_way_nodes.id=#{wayid.to_i} 
                   AND current_way_nodes.node_id=current_nodes.id 

-                  AND current_nodes.visible=1
+                  AND current_nodes.visible=TRUE

          ORDER BY sequence_id
          EOF
        ActiveRecord::Base.connection.select_all(sql).each do |row|
          ORDER BY sequence_id
          EOF
        ActiveRecord::Base.connection.select_all(sql).each do |row|

-         points << [row['lon'].to_f,row['lat'].to_f,row['id'].to_i,nil,tagstring_to_hash(row['tags'])]
+         nodetags={}
+         ActiveRecord::Base.connection.select_all("SELECT k,v FROM current_node_tags WHERE id=#{row['id']}").each do |n|
+               nodetags[n['k']]=n['v']
+         end
+         nodetags.delete('created_by')
+         points << [row['lon'].to_f,row['lat'].to_f,row['id'].to_i,nodetags]

        end
        points
   end
        end
        points
   end


@@ -544,4 +735,12 @@ class AmfController < ApplicationController
        tags
   end
 
        tags
   end
 

+  def sql_get_way_version(wayid)
+    ActiveRecord::Base.connection.select_one("SELECT version FROM current_ways WHERE id=#{wayid.to_i}")
+  end

 end
 end

+
+# Local Variables:
+# indent-tabs-mode: t
+# tab-width: 4
+# End: