# == 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 RAILS_DEFAULT_LOGGER.info("message").
+# To write to the Rails log, use logger.info("message").
+
+# Remaining issues:
+# * version conflict when POIs and ways are reverted
class AmfController < ApplicationController
require 'stringio'
include MapBoundary
session :off
- before_filter :check_write_availability
+ 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'; 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].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 '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)
-
- 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
- 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
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
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
- 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
##
# 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], ...]]
# used in any way, rel is any relation which refers to either a way
# or node that we're returning.
def whichways(xmin, ymin, xmax, ymax) #:doc:
- xmin -= 0.01; ymin -= 0.01
- xmax += 0.01; ymax += 0.01
-
+ 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)
# 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, n.version] }
+ points = nodes_not_used_in_area.collect { |n| [n.id, n.lon, n.lat, n.tags, n.version] }.uniq
# find the relations used by those nodes and ways
relations = Relation.find_for_nodes(nodes_in_area.collect { |n| n.id }, :conditions => {:visible => true}) +
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
# 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
+ 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
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.
def getway(wayid) #:doc:
if POTLATCH_USE_SQL then
- points = sql_get_nodes_in_way(wayid)
- tags = sql_get_tags_in_way(wayid)
- version = sql_get_way_version(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
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
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.
#
# For undelete (version<0), always uses the most recent version of each node,
# 3. hash of tags,
# 4. version,
# 5. is this the current, visible version? (boolean)
-
- def getway_old(id, version) #:doc:
- if version < 0
+
+ def getway_old(id, timestamp) #:doc:
+ if timestamp == ''
+ # undelete
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
- old_way = OldWay.find(:first, :conditions => ['id = ? AND version = ?', id, version])
- points = old_way.get_nodes_revert unless old_way.nil?
+ begin
+ # revert
+ timestamp = DateTime.strptime(timestamp.to_s, "%d %b %Y, %H:%M:%S")
+ old_way = OldWay.find(:first, :conditions => ['id = ? AND timestamp <= ?', id, timestamp], :order => 'timestamp DESC')
+ 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.", id, [], {}, nil, false]
+ end
+ end
+ rescue ArgumentError
+ # thrown by date parsing method. leave old_way as nil for
+ # the error handler below.
+ end
end
if old_way.nil?
- 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, old_way.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
- # Find history of a way. Returns 'way', id, and
- # an array of previous versions.
+ # Find history of a way.
+ # Returns 'way', id, and an array of previous versions:
+ # - formerly [old_way.version, old_way.timestamp.strftime("%d %b %Y, %H:%M"), old_way.visible ? 1 : 0, user, uid]
+ # - now [timestamp,user,uid]
+ #
+ # Heuristic: Find all nodes that have ever been part of the way;
+ # get a list of their revision dates; add revision dates of the way;
+ # sort and collapse list (to within 2 seconds); trim all dates before the
+ # start date of the way.
def getway_history(wayid) #:doc:
+
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]
+ # Find list of revision dates for way and all constituent nodes
+ revdates=[]
+ revusers={}
+ Way.find(wayid).old_ways.collect do |a|
+ revdates.push(a.timestamp)
+ unless revusers.has_key?(a.timestamp.to_i) then revusers[a.timestamp.to_i]=change_user(a) end
+ a.nds.each do |n|
+ Node.find(n).old_nodes.collect do |o|
+ revdates.push(o.timestamp)
+ unless revusers.has_key?(o.timestamp.to_i) then revusers[o.timestamp.to_i]=change_user(o) end
+ end
+ end
end
-
- return ['way',wayid,history]
+ waycreated=revdates[0]
+ revdates.uniq!
+ revdates.sort!
+ revdates.reverse!
+
+ # Remove any dates (from nodes) before first revision date of way
+ revdates.delete_if { |d| d<waycreated }
+ # Remove any elements where 2 seconds doesn't elapse before next one
+ revdates.delete_if { |d| revdates.include?(d+1) or revdates.include?(d+2) }
+ # Collect all in one nested array
+ revdates.collect! {|d| [d.strftime("%d %b %Y, %H:%M:%S")] + revusers[d.to_i] }
+
+ return ['way', wayid, revdates]
rescue ActiveRecord::RecordNotFound
return ['way', wayid, []]
end
end
-
- # Find history of a node. Returns 'node', id, and
- # an array of previous versions.
+
+ # Find history of a node. Returns 'node', id, and an array of previous versions as above.
def getnode_history(nodeid) #:doc:
- 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]
+ begin
+ history = Node.find(nodeid).old_nodes.reverse.collect do |old_node|
+ [old_node.timestamp.strftime("%d %b %Y, %H:%M:%S")] + change_user(old_node)
+ end
+ return ['node', nodeid, history]
+ rescue ActiveRecord::RecordNotFound
+ return ['node', nodeid, []]
end
-
- return ['node',nodeid,history]
- rescue ActiveRecord::RecordNotFound
- return ['node', nodeid, []]
+ end
+
+ def change_user(obj)
+ user_object = obj.changeset.user
+ user = user_object.data_public? ? user_object.display_name : 'anonymous'
+ uid = user_object.data_public? ? user_object.id : 0
+ [user,uid]
end
# Find GPS traces with specified name/id.
def findgpx(searchterm, usertoken)
user = getuser(usertoken)
- if !uid then return -1,"You must be logged in to search for GPX traces." end
+ if !uid then return -1,"You must be logged in to search for GPX traces.",[] end
gpxs = []
if searchterm.to_i>0 then
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.
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
# Returns
# 0. 0 (success),
# 1. original relation id (unchanged),
- # 2. new relation id.
+ # 2. new relation id,
+ # 3. version.
- def putrelation(renumberednodes, renumberedways, usertoken, changeset, version, relid, tags, members, visible) #:doc:
+ def putrelation(renumberednodes, renumberedways, usertoken, changeset_id, version, relid, tags, members, visible) #:doc:
user = getuser(usertoken)
if !user then return -1,"You are not logged in, so the relation could not be saved." end
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]]
new_relation.members = typedmembers
new_relation.tags = tags
new_relation.visible = visible
- new_relation.changeset_id = changeset
+ new_relation.changeset_id = changeset_id
new_relation.version = version
-
- if id <= 0
- # We're creating the node
+ if relid <= 0
+ # 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 id <= 0
- return [0, relid, new_relation.id, new_relation.version]
+ if relid <= 0
+ return [0, '', relid, new_relation.id, new_relation.version]
else
- return [0, relid, relation.id, 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, "You have taken too long to edit, please 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 object 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, "Something really bad happened :-()"]
+ 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
# 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),
# 4. way version,
# 5. hash of node versions (node=>version)
- def putway(renumberednodes, usertoken, changeset, version, originalway, pointlist, attributes, nodes) #:doc:
+ def putway(renumberednodes, usertoken, changeset_id, wayversion, originalway, pointlist, attributes, nodes, deletednodes) #:doc:
# -- Initialise
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
if renumberednodes[id] then id = renumberednodes[id] end
node = Node.new
- node.changeset_id = changeset
+ node.changeset_id = changeset_id
node.lat = lat
node.lon = lon
node.tags = a[4]
# We're creating the node
node.create_with_history(user)
renumberednodes[id] = node.id
- nodeversions[id] = node.version
+ nodeversions[node.id] = node.version
else
# We're updating an existing node
previous=Node.find(id)
+ node.id=id
previous.update_from(node, user)
- nodeversions[id] = previous.version
+ nodeversions[previous.id] = previous.version
end
end
- # -- Delete any unique nodes no longer used
-
- uniques=uniques-pointlist
- uniques.each do |n|
- node = Node.find(n)
- new_node = Node.new
- new_node.changeset_id = changeset
- new_node.version = version
- node.delete_with_history!(new_node, user)
- end
-
# -- 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
- new_way.changeset_id = changeset
- new_way.version = version
+ new_way.changeset_id = changeset_id
+ new_way.version = wayversion
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 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)
+ 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 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 object 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, "Something really bad happened :-(."]
+ 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, version, id, lon, lat, tags, visible) #:doc:
+ def putpoi(usertoken, changeset_id, version, id, lon, lat, tags, visible) #:doc:
user = getuser(usertoken)
if !user then return -1,"You are not logged in, so the point could not be saved." end
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
- deleteitemrelations(id, 'node')
+ 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
new_node = Node.new
- new_node.changeset_id = changeset
+ new_node.changeset_id = changeset_id
new_node.version = version
new_node.lat = lat
new_node.lon = lon
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, "You have taken too long to edit, please 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 object 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, "Something really bad happened :-()"]
+ 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,version) #:doc:
- if version>0 then
- n = OldNode.find(id, :conditions=>['version=?',version])
- else
- n = Node.find(id)
+ def getpoi(id,timestamp) #:doc:
+ 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
# * 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
- # FIXME: would be good not to make two history entries when removing
- # two nodes from the same relation
+ # -- Delete the way
+
old_way = Way.find(way_id)
- #old_way.unshared_node_ids.each do |n|
- # deleteitemrelations(n, 'node')
- #end
- #deleteitemrelations(way_id, 'way')
-
-
- #way.delete_with_relations_and_nodes_and_history(changeset_id.to_i)
- old_way.unshared_node_ids.each do |node_id|
- # delete the node
- node = Node.find(node_id)
- delete_node = Node.new
- delete_node.version = node_id_version[node_id]
- node.delete_with_history!(delete_node, user)
- end
- # delete the way
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)
+
+ # -- 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, "You have taken too long to edit, please 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 object 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, "Something really bad happened :-()"]
+ return [-2, "An unusual error happened (in 'deleteway' #{way_id}). The server said: #{ex}",way_id,way_version,nodeversions]
end
# ====================================================================
# Support functions
- # delete a way and its nodes that aren't part of other ways
- # this functionality used to be in the model, however it is specific to amf
- # controller
- #def delete_unshared_nodes(changeset_id, way_id)
-
- # Remove a node or way from all relations
- # FIXME needs version, changeset, and user
- # Fixme make sure this doesn't depend on anything and delete this, as potlatch
- # itself should remove the relations first
- def deleteitemrelations(objid, type, version) #: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 }
- # FIXME need to create the new relation
- new_rel = Relation.new
- new_rel.version = version
- new_rel.members = members
- new_rel.changeset = changeset
- rel.delete_with_history(new_rel, user)
- end
- end
-
- # Break out node tags into a hash
- # (should become obsolete as of API 0.6)
-
- def tagstring_to_hash(a) #:doc:
- tags={}
- Tags.split(a) do |k, v|
- tags[k]=v
- end
- tags
- end
-
# Authenticate token
# (can also be of form user:pass)
# When we are writing to the api, we need the actual user model,
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'
+ INNER JOIN current_nodes cn ON crm.member_id=cn.id AND crm.member_type='Node'
WHERE #{OSM.sql_for_area(ymin, xmin, ymax, xmax, "cn.")}
EOF
unless way_ids.empty?
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'
+ 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,a['version'].to_i] }
+ 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
- SELECT latitude*0.0000001 AS lat,longitude*0.0000001 AS lon,current_nodes.id
+ SELECT latitude*0.0000001 AS lat,longitude*0.0000001 AS lon,current_nodes.id,current_nodes.version
FROM current_way_nodes,current_nodes
WHERE current_way_nodes.id=#{wayid.to_i}
AND current_way_nodes.node_id=current_nodes.id
nodetags[n['k']]=n['v']
end
nodetags.delete('created_by')
- points << [row['lon'].to_f,row['lat'].to_f,row['id'].to_i,nodetags]
+ points << [row['lon'].to_f,row['lat'].to_f,row['id'].to_i,nodetags,row['version'].to_i]
end
points
end
projects / rails.git / blobdiff