X-Git-Url: https://git.openstreetmap.org./rails.git/blobdiff_plain/c65a3d76aeba12e6808d107e53cb1284ae3e9b99..1db6b392a6c9f255d74669d8ae6db67934a2ab54:/app/controllers/amf_controller.rb diff --git a/app/controllers/amf_controller.rb b/app/controllers/amf_controller.rb index 6f07fa2c7..5bc5e2832 100644 --- a/app/controllers/amf_controller.rb +++ b/app/controllers/amf_controller.rb @@ -24,8 +24,11 @@ # == Debugging # # Any method that returns a status code (0 for ok) can also send: -# return(-1,"message") <-- just puts up a dialogue -# return(-2,"message") <-- also asks the user to e-mail me +# return(-1,"message") <-- just puts up a dialogue +# return(-2,"message") <-- also asks the user to e-mail me +# return(-3,["type",v],id) <-- version conflict +# return(-4,"type",id) <-- object not found +# -5 indicates the method wasn't called (due to a previous error) # # To write to the Rails log, use logger.info("message"). @@ -42,100 +45,117 @@ class AmfController < ApplicationController session :off before_filter :check_api_writable + around_filter :api_call_timeout, :only => [:amf_read] # Main AMF handlers: process the raw AMF string (using AMF library) and # calls each action (private method) accordingly. # ** FIXME: refactor to reduce duplication of code across read/write 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 + if request.post? + 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 - headers=AMF.getint(req) # Read number of headers + 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 + 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) - logger.info("Executing AMF #{message}:#{index}") - - case message - when 'getpresets'; results[index]=AMF.putdata(index,getpresets()) - when 'whichways'; results[index]=AMF.putdata(index,whichways(*args)) - when 'whichways_deleted'; results[index]=AMF.putdata(index,whichways_deleted(*args)) - when 'getway'; r=AMF.putdata(index,getway(args[0].to_i)) - results[index]=r - 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])) - 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 'findgpx'; results[index]=AMF.putdata(index,findgpx(*args)) - when 'findrelations'; results[index]=AMF.putdata(index,findrelations(*args)) - when 'getpoi'; results[index]=AMF.putdata(index,getpoi(*args)) + 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) + logger.info("Executing AMF #{message}(#{args.join(',')}):#{index}") + + case message + when 'getpresets'; results[index]=AMF.putdata(index,getpresets(args[0])) + when 'whichways'; results[index]=AMF.putdata(index,whichways(*args)) + when 'whichways_deleted'; results[index]=AMF.putdata(index,whichways_deleted(*args)) + when 'getway'; results[index]=AMF.putdata(index,getway(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])) + 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 'findgpx'; results[index]=AMF.putdata(index,findgpx(*args)) + 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) + else + render :nothing => true, :status => :method_not_allowed 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 + if request.post? + 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) - - logger.info("Executing AMF #{message}:#{index}") - case message - when 'putway'; r=putway(renumberednodes,*args) - renumberednodes=r[3] - if r[1] != r[2] then renumberedways[r[1]] = r[2] 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)) - when 'putpoi'; r=putpoi(*args) - if r[1] != r[2] then renumberednodes[r[1]] = r[2] end - results[index]=AMF.putdata(index,r) - when 'startchangeset'; results[index]=AMF.putdata(index,startchangeset(*args)) + 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) + err=false # Abort batch on error + + logger.info("Executing AMF #{message}:#{index}") + if err + results[index]=[-5,nil] + else + case message + when 'putway'; orn=renumberednodes.dup + r=putway(renumberednodes,*args) + renumberednodes=r[4].dup + r[4].delete_if { |k,v| orn.has_key?(k) } + if r[2] != r[3] then renumberedways[r[2]] = r[3] 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)) + when 'putpoi'; r=putpoi(*args) + if r[2] != r[3] then renumberednodes[r[2]] = r[3] end + results[index]=AMF.putdata(index,r) + when 'startchangeset';results[index]=AMF.putdata(index,startchangeset(*args)) + end + if results[index][0]==-3 then err=true end # If a conflict is detected, don't execute any more writes + end end + logger.info("Encoding AMF results") + sendresponse(results) + else + render :nothing => true, :status => :method_not_allowed end - logger.info("encoding AMF results") - sendresponse(results) end private # Start new changeset + # Returns success_code,success_message,changeset id - def startchangeset(usertoken, cstags, closeid, closecomment) + def startchangeset(usertoken, cstags, closeid, closecomment, opennew) user = getuser(usertoken) if !user then return -1,"You are not logged in, so Potlatch can't write any changes to the database." end @@ -144,7 +164,7 @@ class AmfController < ApplicationController cs = Changeset.find(closeid) cs.set_closed_time_now if cs.user_id!=user.id - return -2,"You cannot close that changeset because you're not the person who opened it." + return -2,"You cannot close that changeset because you're not the person who opened it.",nil elsif closecomment.empty? cs.save! else @@ -154,21 +174,39 @@ class AmfController < ApplicationController end # open a new changeset - cs = Changeset.new - cs.tags = cstags - cs.user_id = user.id - # smsm1 doesn't like the next two lines and thinks they need to be abstracted to the model more/better - cs.created_at = Time.now.getutc - cs.closed_at = cs.created_at + Changeset::IDLE_TIMEOUT - cs.save_with_tags! - return [0,cs.id] + if opennew!=0 + cs = Changeset.new + cs.tags = cstags + cs.user_id = user.id + if !closecomment.empty? then cs.tags['comment']=closecomment end + # smsm1 doesn't like the next two lines and thinks they need to be abstracted to the model more/better + cs.created_at = Time.now.getutc + cs.closed_at = cs.created_at + Changeset::IDLE_TIMEOUT + cs.save_with_tags! + return [0,'',cs.id] + else + return [0,'',nil] + end end # Return presets (default tags, localisation etc.): # uses POTLATCH_PRESETS global, set up in OSM::Potlatch. - def getpresets() #:doc: - return POTLATCH_PRESETS + def getpresets(lang) #:doc: + lang.gsub!(/[^\w\-]/,'') + + begin + localised = YAML::load(File.open("#{RAILS_ROOT}/config/potlatch/localised/#{lang}/localised.yaml")) + rescue + localised = "" # guess we'll just have to use the hardcoded English text instead + end + + begin + help = File.read("#{RAILS_ROOT}/config/potlatch/localised/#{lang}/help.html") + rescue + help = File.read("#{RAILS_ROOT}/config/potlatch/localised/en/help.html") + end + return POTLATCH_PRESETS+[localised,help] end ## @@ -177,7 +215,7 @@ class AmfController < ApplicationController # are IDs only. # # return is of the form: - # [error_code, + # [success_code, success_message, # [[way_id, way_version], ...], # [[node_id, lat, lon, [tags, ...], node_version], ...], # [[rel_id, rel_version], ...]] @@ -189,7 +227,7 @@ class AmfController < ApplicationController enlarge = [(xmax-xmin)/8,0.01].min xmin -= enlarge; ymin -= enlarge xmax += enlarge; ymax += enlarge - + # check boundary is sane and area within defined # see /config/application.yml check_boundaries(xmin, ymin, xmax, ymax) @@ -217,10 +255,12 @@ class AmfController < ApplicationController relations = relations.collect { |relation| [relation.id,relation.version] }.uniq end - [0, ways, points, relations] + [0, '', ways, points, relations] + rescue OSM::APITimeoutError => err + [-1,"Sorry, I can't get the map for that area - try zooming in further. The server said: #{err}"] rescue Exception => err - [-2,"Sorry - I can't get the map for that area."] + [-2,"Sorry - I can't get the map for that area. The server said: #{err}",[],[],[] ] end # Find deleted ways in current bounding box (similar to whichways, but ways @@ -236,13 +276,13 @@ class AmfController < ApplicationController begin check_boundaries(xmin, ymin, xmax, ymax) rescue Exception => err - return [-2,"Sorry - I can't get the map for that area."] + return [-2,"Sorry - I can't get the map for that area. The server said: #{err}",[]] end 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 - [0,way_ids] + [0,'',way_ids] end # Get a way including nodes and tags. @@ -258,13 +298,13 @@ class AmfController < ApplicationController # then rails only seems to return the first copy of a node when a # way includes a node more than once begin - way = Way.find(wayid) + way = Way.find(wayid, :include => { :nodes => :node_tags }) rescue ActiveRecord::RecordNotFound - return [wayid,[],{}] + return [-4, 'way', wayid, [], {}, nil] end # check case where way has been deleted or doesn't exist - return [wayid,[],{}] if way.nil? or !way.visible + return [-4, 'way', wayid, [], {}, nil] if way.nil? or !way.visible points = way.nodes.collect do |node| nodetags=node.tags @@ -275,7 +315,7 @@ class AmfController < ApplicationController version = way.version end - [wayid, points, tags, version] + [0, '', wayid, points, tags, version] end # Get an old version of a way, and all constituent nodes. @@ -306,22 +346,21 @@ class AmfController < ApplicationController unless old_way.nil? points = old_way.get_nodes_revert(timestamp) if !old_way.visible - return [-1, "Sorry, the way was deleted at that time - please revert to a previous version."] + return [-1, "Sorry, the way was deleted at that time - please revert to a previous version.", id, [], {}, nil, false] end end rescue ArgumentError # thrown by date parsing method. leave old_way as nil for - # the superb error handler below. + # the error handler below. end end if old_way.nil? - # *** FIXME: shouldn't this be returning an error? - return [-1, id, [], {}, -1,0] + return [-1, "Sorry, the server could not find a way at that time.", id, [], {}, nil, false] else curway=Way.find(id) old_way.tags['history'] = "Retrieved from v#{old_way.version}" - return [0, id, points, old_way.tags, curway.version, (curway.version==old_way.version and curway.visible)] + return [0, '', id, points, old_way.tags, curway.version, (curway.version==old_way.version and curway.visible)] end end @@ -354,7 +393,7 @@ class AmfController < ApplicationController waycreated=revdates[0] revdates.uniq! revdates.sort! - revdates.reverse! + revdates.reverse! # Remove any dates (from nodes) before first revision date of way revdates.delete_if { |d| d0 then @@ -407,25 +446,27 @@ class AmfController < ApplicationController gpxs.push([gpx.id, gpx.name, gpx.description]) end end - gpxs + [0,'',gpxs] end # Get a relation with all tags and members. # Returns: - # 0. relation id, - # 1. hash of tags, - # 2. list of members, - # 3. version. + # 0. success code? + # 1. object type? + # 2. relation id, + # 3. hash of tags, + # 4. list of members, + # 5. version. def getrelation(relid) #:doc: begin rel = Relation.find(relid) rescue ActiveRecord::RecordNotFound - return [relid, {}, []] + return [-4, 'relation', relid, {}, [], nil] end - return [relid, {}, [], nil] if rel.nil? or !rel.visible - [relid, rel.tags, rel.members, rel.version] + return [-4, 'relation', relid, {}, [], nil] if rel.nil? or !rel.visible + [0, '', relid, rel.tags, rel.members, rel.version] end # Find relations with specified name/id. @@ -436,12 +477,12 @@ class AmfController < ApplicationController 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]) + rels.push([rel.id, rel.tags, rel.members, rel.version]) end else - RelationTag.find(:all, :limit => 11, :conditions => ["match(v) against (?)", searchterm] ).each do |t| + RelationTag.find(:all, :limit => 11, :conditions => ["v like ?", "%#{searchterm}%"] ).each do |t| if t.relation.visible then - rels.push([t.relation.id, t.relation.tags, t.relation.members]) + rels.push([t.relation.id, t.relation.tags, t.relation.members, t.relation.version]) end end end @@ -477,8 +518,8 @@ class AmfController < ApplicationController members.each do |m| mid = m[1].to_i if mid < 0 - mid = renumberednodes[mid] if m[0] == 'node' - mid = renumberedways[mid] if m[0] == 'way' + mid = renumberednodes[mid] if m[0] == 'Node' + mid = renumberedways[mid] if m[0] == 'Way' end if mid typedmembers << [m[0], mid, m[2]] @@ -493,34 +534,34 @@ class AmfController < ApplicationController new_relation.version = version if relid <= 0 - # We're creating the node + # We're creating the relation new_relation.create_with_history(user) elsif visible - # We're updating the node + # We're updating the relation + new_relation.id = relid relation.update_from(new_relation, user) else - # We're deleting the node + # We're deleting the relation + new_relation.id = relid relation.delete_with_history!(new_relation, user) end end # transaction if relid <= 0 - return [0, relid, new_relation.id, new_relation.version] + return [0, '', relid, new_relation.id, new_relation.version] else - return [0, relid, relid, relation.version] + return [0, '', relid, relid, relation.version] end rescue OSM::APIChangesetAlreadyClosedError => ex - return [-1, "The changeset #{ex.changeset.id} was closed at #{ex.changeset.closed_at}."] + return [-1, "The changeset #{ex.changeset.id} was closed at #{ex.changeset.closed_at}.", relid, relid, nil] rescue OSM::APIVersionMismatchError => ex - # Really need to check to see whether this is a server load issue, and the - # last version was in the same changeset, or belongs to the same user, then - # we can return something different - return [-3, "Sorry, someone else has changed this relation since you started editing. Please click the 'Edit' tab to reload the area."] + a=ex.to_s.match(/(\d+) of (\w+) (\d+)$/) + return [-3, ['relation', a[1]], relid, relid, nil] rescue OSM::APIAlreadyDeletedError => ex - return [-1, "The relation has already been deleted."] + return [-1, "The relation has already been deleted.", relid, relid, nil] rescue OSM::APIError => ex # Some error that we don't specifically catch - return [-2, "An unusual error happened (in 'putrelation' #{relid})."] + return [-2, "An unusual error happened (in 'putrelation' #{relid}). The server said: #{ex}", relid, relid, nil] end # Save a way to the database, including all nodes. Any nodes in the previous @@ -534,7 +575,8 @@ class AmfController < ApplicationController # 4. way ID # 5. list of nodes in way # 6. hash of way tags - # 7. array of nodes to change (each one is [lon,lat,id,version,tags]) + # 7. array of nodes to change (each one is [lon,lat,id,version,tags]), + # 8. hash of nodes to delete (id->version). # # Returns: # 0. '0' (code for success), @@ -544,7 +586,7 @@ class AmfController < ApplicationController # 4. way version, # 5. hash of node versions (node=>version) - def putway(renumberednodes, usertoken, changeset_id, wayversion, originalway, pointlist, attributes, nodes) #:doc: + def putway(renumberednodes, usertoken, changeset_id, wayversion, originalway, pointlist, attributes, nodes, deletednodes) #:doc: # -- Initialise @@ -553,22 +595,13 @@ class AmfController < ApplicationController if pointlist.length < 2 then return -2,"Server error - way is only #{points.length} points long." end originalway = originalway.to_i - pointlist.collect! {|a| a.to_i } + pointlist.collect! {|a| a.to_i } way=nil # this is returned, so scope it outside the transaction nodeversions = {} Way.transaction do - # -- Get unique nodes - - if originalway <= 0 - uniques = [] - else - way = Way.find(originalway) - uniques = way.unshared_node_ids - end - - #-- Update each changed node + # -- Update each changed node nodes.each do |a| lon = a[0].to_f @@ -594,6 +627,7 @@ class AmfController < ApplicationController else # We're updating an existing node previous=Node.find(id) + node.id=id previous.update_from(node, user) nodeversions[previous.id] = previous.version end @@ -601,9 +635,9 @@ class AmfController < ApplicationController # -- Save revised way - pointlist.collect! {|a| - renumberednodes[a] ? renumberednodes[a]:a - } # renumber nodes + pointlist.collect! {|a| + renumberednodes[a] ? renumberednodes[a]:a + } # renumber nodes new_way = Way.new new_way.tags = attributes new_way.nds = pointlist @@ -612,48 +646,55 @@ class AmfController < ApplicationController if originalway <= 0 new_way.create_with_history(user) way=new_way # so we can get way.id and way.version - elsif way.tags!=attributes or way.nds!=pointlist or !way.visible? - way.update_from(new_way, user) + else + way = Way.find(originalway) + if way.tags!=attributes or way.nds!=pointlist or !way.visible? + new_way.id=originalway + way.update_from(new_way, user) + end end - # -- Delete any unique nodes no longer used + # -- Delete unwanted nodes - uniques=uniques-pointlist - uniques.each do |n| - node = Node.find(n) - deleteitemrelations(user, changeset_id, id, 'node', node.version) + deletednodes.each do |id,v| + node = Node.find(id.to_i) new_node = Node.new new_node.changeset_id = changeset_id - new_node.version = node.version - node.delete_with_history!(new_node, user) + new_node.version = v.to_i + new_node.id = id.to_i + begin + node.delete_with_history!(new_node, user) + rescue OSM::APIPreconditionFailedError => ex + # We don't do anything here as the node is being used elsewhere + # and we don't want to delete it + end end end # transaction - [0, originalway, way.id, renumberednodes, way.version, nodeversions] + [0, '', originalway, way.id, renumberednodes, way.version, nodeversions, deletednodes] rescue OSM::APIChangesetAlreadyClosedError => ex - return [-2, "Sorry, your changeset #{ex.changeset.id} has been closed (at #{ex.changeset.closed_at})."] + return [-1, "Sorry, your changeset #{ex.changeset.id} was closed (at #{ex.changeset.closed_at}).", originalway, originalway, renumberednodes, wayversion, nodeversions, deletednodes] rescue OSM::APIVersionMismatchError => ex - # Really need to check to see whether this is a server load issue, and the - # last version was in the same changeset, or belongs to the same user, then - # we can return something different - return [-3, "Sorry, someone else has changed this way since you started editing. Please click the 'Edit' tab to reload the area."] + a=ex.to_s.match(/(\d+) of (\w+) (\d+)$/) + return [-3, ['way', a[1], a[2].downcase, a[3]], originalway, originalway, renumberednodes, wayversion, nodeversions, deletednodes] rescue OSM::APITooManyWayNodesError => ex - return [-1, "You have tried to upload a really long way with #{ex.provided} points: only #{ex.max} are allowed."] + return [-1, "You have tried to upload a really long way with #{ex.provided} points: only #{ex.max} are allowed.", originalway, originalway, renumberednodes, wayversion, nodeversions, deletednodes] rescue OSM::APIAlreadyDeletedError => ex - return [-1, "The point has already been deleted."] + return [-1, "The point has already been deleted.", originalway, originalway, renumberednodes, wayversion, nodeversions, deletednodes] rescue OSM::APIError => ex # Some error that we don't specifically catch - return [-2, "An unusual error happened (in 'putway' #{originalway})."] + return [-2, "An unusual error happened (in 'putway' #{originalway}). The server said: #{ex}", originalway, originalway, renumberednodes, wayversion, nodeversions, deletednodes] end # Save POI to the database. # Refuses save if the node has since become part of a way. # Returns array with: # 0. 0 (success), - # 1. original node id (unchanged), - # 2. new node id, - # 3. version. + # 1. success message, + # 2. original node id (unchanged), + # 3. new node id, + # 4. version. def putpoi(usertoken, changeset_id, version, id, lon, lat, tags, visible) #:doc: user = getuser(usertoken) @@ -668,7 +709,7 @@ class AmfController < ApplicationController 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 + unless node.ways.empty? then return -1,"The point has since become part of a way, so you cannot save it as a POI.",id,id,version end end end # We always need a new node, based on the data that has been sent to us @@ -684,52 +725,53 @@ class AmfController < ApplicationController new_node.create_with_history(user) elsif visible # We're updating the node + new_node.id=id node.update_from(new_node, user) else # We're deleting the node + new_node.id=id node.delete_with_history!(new_node, user) end - end # transaction + + end # transaction if id <= 0 - return [0, id, new_node.id, new_node.version] + return [0, '', id, new_node.id, new_node.version] else - return [0, id, node.id, node.version] + return [0, '', id, node.id, node.version] end rescue OSM::APIChangesetAlreadyClosedError => ex - return [-1, "The changeset #{ex.changeset.id} was closed at #{ex.changeset.closed_at}"] + return [-1, "The changeset #{ex.changeset.id} was closed at #{ex.changeset.closed_at}",id,id,version] rescue OSM::APIVersionMismatchError => ex - # Really need to check to see whether this is a server load issue, and the - # last version was in the same changeset, or belongs to the same user, then - # we can return something different - return [-3, "Sorry, someone else has changed this point since you started editing. Please click the 'Edit' tab to reload the area."] + a=ex.to_s.match(/(\d+) of (\w+) (\d+)$/) + return [-3, ['node', a[1]], id,id,version] rescue OSM::APIAlreadyDeletedError => ex - return [-1, "The point has already been deleted"] + return [-1, "The point has already been deleted",id,id,version] rescue OSM::APIError => ex # Some error that we don't specifically catch - return [-2, "An unusual error happened (in 'putpoi' #{id})."] + return [-2, "An unusual error happened (in 'putpoi' #{id}). The server said: #{ex}",id,id,version] end # Read POI from database # (only called on revert: POIs are usually read by whichways). # - # Returns array of id, long, lat, hash of tags, version. + # Returns array of id, long, lat, hash of tags, (current) version. def getpoi(id,timestamp) #:doc: - if timestamp == '' then - n = Node.find(id) - else + n = Node.find(id) + v = n.version + unless timestamp == '' n = OldNode.find(id, :conditions=>['timestamp=?',DateTime.strptime(timestamp, "%d %b %Y, %H:%M:%S")]) end if n - return [n.id, n.lon, n.lat, n.tags, n.version] + return [0, '', n.id, n.lon, n.lat, n.tags, v] else - return [nil, nil, nil, {}, nil] + return [-4, 'node', id, nil, nil, {}, nil] end end - # Delete way and all constituent nodes. Also removes from any relations. + # Delete way and all constituent nodes. # Params: # * The user token # * the changeset id @@ -737,80 +779,62 @@ class AmfController < ApplicationController # * the version of the way that was downloaded # * a hash of the id and versions of all the nodes that are in the way, if any # of the nodes have been changed by someone else then, there is a problem! - # Returns 0 (success), unchanged way id. + # Returns 0 (success), unchanged way id, new way version, new node versions. - def deleteway(usertoken, changeset_id, way_id, way_version, node_id_version) #:doc: + def deleteway(usertoken, changeset_id, way_id, way_version, deletednodes) #:doc: user = getuser(usertoken) unless user then return -1,"You are not logged in, so the way could not be deleted." end way_id = way_id.to_i + nodeversions = {} + old_way=nil # returned, so scope it outside the transaction # Need a transaction so that if one item fails to delete, the whole delete fails. Way.transaction do - # delete the way + # -- Delete the way + old_way = Way.find(way_id) delete_way = Way.new delete_way.version = way_version delete_way.changeset_id = changeset_id + delete_way.id = way_id old_way.delete_with_history!(delete_way, user) - old_way.unshared_node_ids.each do |node_id| - # delete the node - node = Node.find(node_id) - delete_node = Node.new - delete_node.changeset_id = changeset_id - if node_id_version[node_id.to_s] - delete_node.version = node_id_version[node_id.to_s] - else - # in case the node wasn't passed (i.e. if it was previously removed - # from the way in Potlatch) - deleteitemrelations(user, changeset_id, node_id, 'node', node.version) - delete_node.version = node.version - end - node.delete_with_history!(delete_node, user) + # -- Delete unwanted nodes + + deletednodes.each do |id,v| + node = Node.find(id.to_i) + new_node = Node.new + new_node.changeset_id = changeset_id + new_node.version = v.to_i + new_node.id = id.to_i + begin + node.delete_with_history!(new_node, user) + nodeversions[node.id]=node.version + rescue OSM::APIPreconditionFailedError => ex + # We don't do anything with the exception as the node is in use + # elsewhere and we don't want to delete it + end end + end # transaction - [0, way_id] + [0, '', way_id, old_way.version, nodeversions] rescue OSM::APIChangesetAlreadyClosedError => ex - return [-1, "The changeset #{ex.changeset.id} was closed at #{ex.changeset.closed_at}"] + return [-1, "The changeset #{ex.changeset.id} was closed at #{ex.changeset.closed_at}",way_id,way_version,nodeversions] rescue OSM::APIVersionMismatchError => ex - # Really need to check to see whether this is a server load issue, and the - # last version was in the same changeset, or belongs to the same user, then - # we can return something different - return [-3, "Sorry, someone else has changed this way since you started editing. Please click the 'Edit' tab to reload the area."] + a=ex.to_s.match(/(\d+) of (\w+) (\d+)$/) + return [-3, ['way', a[1]],way_id,way_version,nodeversions] rescue OSM::APIAlreadyDeletedError => ex - return [-1, "The way has already been deleted."] + return [-1, "The way has already been deleted.",way_id,way_version,nodeversions] rescue OSM::APIError => ex # Some error that we don't specifically catch - return [-2, "An unusual error happened (in 'deleteway' #{way_id})."] + return [-2, "An unusual error happened (in 'deleteway' #{way_id}). The server said: #{ex}",way_id,way_version,nodeversions] end # ==================================================================== # Support functions - # Remove a node or way from all relations - # This is only used by putway and deleteway when deleting nodes removed - # from a way (because Potlatch itself doesn't keep track of these - - # possible FIXME). - - def deleteitemrelations(user, changeset_id, objid, type, version) #:doc: - relations = RelationMember.find(:all, - :conditions => ['member_type = ? and member_id = ?', type.classify, objid], - :include => :relation).collect { |rm| rm.relation }.uniq - - relations.each do |rel| - rel.members.delete_if { |x| x[0] == type and x[1] == objid } - new_rel = Relation.new - new_rel.tags = rel.tags - new_rel.visible = rel.visible - new_rel.version = rel.version - new_rel.members = rel.members - new_rel.changeset_id = changeset_id - rel.update_from(new_rel, user) - end - end - # Authenticate token # (can also be of form user:pass) # When we are writing to the api, we need the actual user model,