session :off
before_filter :check_write_availability
+ # AMF controller for Potlatch
+ # ---------------------------
+ # All interaction between Potlatch (as a .SWF application) and the
+ # OSM database takes place using this controller. Messages are
+ # encoded in the Actionscript Message Format (AMF).
+ #
+ # Public domain. Set your tab width to 4 to read this document. :)
+ # editions Systeme D / Richard Fairhurst 2004-2008
+ #
+ # All in/out parameters are floats unless explicitly stated.
+ #
+ # to trap errors (getway_old,putway,putpoi,deleteway only):
+ # return(-1,"message") <-- just puts up a dialogue
+ # return(-2,"message") <-- also asks the user to e-mail me
# to log:
- # RAILS_DEFAULT_LOGGER.error("Args: #{args[0]}, #{args[1]}, #{args[2]}, #{args[3]}")
+ # RAILS_DEFAULT_LOGGER.error("Args: #{args[0]}, #{args[1]}, #{args[2]}, #{args[3]}")
# ====================================================================
# Main AMF handler
# ---- talk process AMF request
def talk
- req=StringIO.new(request.raw_post) # Get POST data as request
- req.read(2) # Skip version indicator and client ID
- results={} # Results of each body
+ 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
# -------------
# Parse request
args=getvalue(req) # | get response (probably an array)
case message
- when 'getpresets'; results[index]=putdata(index,getpresets)
- when 'whichways'; results[index]=putdata(index,whichways(args))
- when 'getway'; results[index]=putdata(index,getway(args))
- when 'putway'; results[index]=putdata(index,putway(args))
- when 'deleteway'; results[index]=putdata(index,deleteway(args))
- when 'makeway'; results[index]=putdata(index,makeway(args))
- when 'putpoi'; results[index]=putdata(index,putpoi(args))
- when 'getpoi'; results[index]=putdata(index,getpoi(args))
+ when 'getpresets'; results[index]=putdata(index,getpresets)
+ when 'whichways'; results[index]=putdata(index,whichways(args))
+ when 'whichways_deleted'; results[index]=putdata(index,whichways_deleted(args))
+ when 'getway'; results[index]=putdata(index,getway(args))
+ when 'getway_old'; results[index]=putdata(index,getway_old(args))
+ when 'getway_history'; results[index]=putdata(index,getway_history(args))
+ when 'putway'; r=putway(args,renumberednodes)
+ renumberednodes=r[3]
+ results[index]=putdata(index,r)
+ when 'deleteway'; results[index]=putdata(index,deleteway(args))
+ when 'putpoi'; results[index]=putdata(index,putpoi(args))
+ when 'getpoi'; results[index]=putdata(index,getpoi(args))
end
end
RAILS_DEFAULT_LOGGER.info(" Response: start")
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
- }
+ 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
+ }
RAILS_DEFAULT_LOGGER.info(" Response: end")
end
private
+ # Return presets (default tags and crap) to potlatch
+ # Global is set up in config/environment.rb on startup, code is in lib/osm.rb
+ def getpresets
+ return POTLATCH_PRESETS
+ end
+
# ====================================================================
# Remote calls
- # ----- getpresets
- # return presets,presetmenus and presetnames arrays
- def getpresets
- presets={}
- presetmenus={}; presetmenus['point']=[]; presetmenus['way']=[]; presetmenus['POI']=[]
- presetnames={}; presetnames['point']={}; presetnames['way']={}; presetnames['POI']={}
- presettype=''
- presetcategory=''
-
- RAILS_DEFAULT_LOGGER.info(" Message: getpresets")
-
- # File.open("config/potlatch/presets.txt") do |file|
-
- # Temporary patch to get around filepath problem
- # To remove this patch and make the code nice again:
- # 1. uncomment above line
- # 2. fix the path in the above line
- # 3. delete this here document, and the following line (StringIO....)
-
- txt=<<-EOF
-way/road
-motorway: highway=motorway,ref=(type road number)
-trunk road: highway=trunk,ref=(type road number),name=(type road name)
-primary road: highway=primary,ref=(type road number),name=(type road name)
-secondary road: highway=secondary,ref=(type road number),name=(type road name)
-residential road: highway=residential,name=(type road name)
-unclassified road: highway=unclassified,name=(type road name)
-
-way/footway
-footpath: highway=footway,foot=yes
-bridleway: highway=bridleway,foot=yes
-byway: highway=unsurfaced,foot=yes
-permissive path: highway=footway,foot=permissive
-
-way/cycleway
-cycle lane: highway=cycleway,cycleway=lane,ncn_ref=
-cycle track: highway=cycleway,cycleway=track,ncn_ref=
-cycle lane (NCN): highway=cycleway,cycleway=lane,name=(type name here),ncn_ref=(type route number)
-cycle track (NCN): highway=cycleway,cycleway=track,name=(type name here),ncn_ref=(type route number)
-
-way/waterway
-canal: waterway=canal,name=(type name here)
-navigable river: waterway=river,boat=yes,name=(type name here)
-navigable drain: waterway=drain,boat=yes,name=(type name here)
-derelict canal: waterway=derelict_canal,name=(type name here)
-unnavigable river: waterway=river,boat=no,name=(type name here)
-unnavigable drain: waterway=drain,boat=no,name=(type name here)
-
-way/railway
-railway: railway=rail
-tramway: railway=tram
-light railway: railway=light_rail
-preserved railway: railway=preserved
-disused railway tracks: railway=disused
-course of old railway: railway=abandoned
-
-way/natural
-lake: landuse=water
-forest: landuse=forest
-
-point/road
-mini roundabout: highway=mini_roundabout
-traffic lights: highway=traffic_signals
-
-point/footway
-bridge: highway=bridge
-gate: highway=gate
-stile: highway=stile
-cattle grid: highway=cattle_grid
-
-point/cycleway
-gate: highway=gate
-
-point/waterway
-lock gate: waterway=lock_gate
-weir: waterway=weir
-aqueduct: waterway=aqueduct
-winding hole: waterway=turning_point
-mooring: waterway=mooring
-
-point/railway
-station: railway=station
-viaduct: railway=viaduct
-level crossing: railway=crossing
-
-point/natural
-peak: point=peak
-
-POI/road
-car park: amenity=parking
-petrol station: amenity=fuel
-
-POI/cycleway
-bike park: amenity=bicycle_parking
-
-POI/place
-city: place=city,name=(type name here),is_in=(type region or county)
-town: place=town,name=(type name here),is_in=(type region or county)
-suburb: place=suburb,name=(type name here),is_in=(type region or county)
-village: place=village,name=(type name here),is_in=(type region or county)
-hamlet: place=hamlet,name=(type name here),is_in=(type region or county)
-
-POI/tourism
-attraction: tourism=attraction,amenity=,religion=,denomination=
-church: tourism=,amenity=place_of_worship,name=(type name here),religion=christian,denomination=(type denomination here)
-hotel: tourism=hotel,amenity=,religion=,denomination=
-other religious: tourism=,amenity=place_of_worship,name=(type name here),religion=(type religion),denomination=
-post box: amenity=post_box,tourism=,name=,religion=,denomination=
-post office: amenity=post_office,tourism=,name=,religion=,denomination=
-pub: tourism=,amenity=pub,name=(type name here),religion=,denomination=
-
-POI/natural
-peak: point=peak
-EOF
-
- StringIO.open(txt) do |file|
- file.each_line {|line|
- t=line.chomp
- if (t=~/(\w+)\/(\w+)/) then
- presettype=$1
- presetcategory=$2
- presetmenus[presettype].push(presetcategory)
- presetnames[presettype][presetcategory]=["(no preset)"]
- elsif (t=~/^(.+):\s?(.+)$/) then
- pre=$1; kv=$2
- presetnames[presettype][presetcategory].push(pre)
- presets[pre]={}
- kv.split(',').each {|a|
- if (a=~/^(.+)=(.*)$/) then presets[pre][$1]=$2 end
- }
- end
- }
- end
- return [presets,presetmenus,presetnames]
- end
- # ----- whichways(left,bottom,right,top)
- # return array of ways in current bounding box
- # at present, instead of using correct (=more complex) SQL to find
- # corner-crossing ways, it simply enlarges the bounding box by +/- 0.01
+ # ----- whichways
+
+ # Find all the way ids and nodes (including tags and projected lat/lng) which aren't part of those ways in an are
+ #
+ # The argument is an array containing the following, in order:
+ # 0. minimum longitude
+ # 1. minimum latitude
+ # 2. maximum longitude
+ # 3. maximum latitude
+ # 4. baselong, 5. basey, 6. masterscale as above
def whichways(args)
xmin = args[0].to_f-0.01
RAILS_DEFAULT_LOGGER.info(" Message: whichways, bbox=#{xmin},#{ymin},#{xmax},#{ymax}")
- waylist = WaySegment.find_by_sql("SELECT DISTINCT current_way_segments.id AS wayid"+
- " FROM current_way_segments,current_segments,current_nodes,current_ways "+
- " WHERE segment_id=current_segments.id "+
- " AND current_segments.visible=1 "+
- " AND node_a=current_nodes.id "+
- " AND current_ways.id=current_way_segments.id "+
- " AND current_ways.visible=1 "+
- " AND "+OSM.sql_for_area(ymin, xmin, ymax, xmax, "current_nodes."))
+ # find the way ids in an area
+ nodes_in_area = Node.find_by_area(ymin, xmin, ymax, xmax,:conditions => "visible = 1", :include => :way_nodes)
+ waynodes_in_area = nodes_in_area.collect {|node| node.way_nodes }.flatten
+ ways = waynodes_in_area.collect {|way_node| way_node.id[0]}.uniq
- ways = waylist.collect {|a| a.wayid.to_i } # get an array of way id's
+ # find the node ids in an area that aren't part of ways
+ node_ids_in_area = nodes_in_area.collect {|node| node.id}.uniq
+ node_ids_used_in_ways = waynodes_in_area.collect {|way_node| way_node.node_id}.uniq
+ node_ids_not_used_in_area = node_ids_in_area - node_ids_used_in_ways
+ nodes_not_used_in_area = Node.find(node_ids_not_used_in_area)
+ points = nodes_not_used_in_area.collect {|n| [n.id, n.lon_potlatch(baselong,masterscale), n.lat_potlatch(basey,masterscale), n.tags_as_hash] }
+
+ [ways,points]
+ end
+
+ # ----- whichways_deleted
+ # return array of deleted ways in current bounding box
+ # in: as whichways
+ # does: finds all deleted ways with a deleted node in bounding box
+ # out: [0] array of way ids
+
+ def whichways_deleted(args)
+ xmin = args[0].to_f-0.01
+ ymin = args[1].to_f-0.01
+ xmax = args[2].to_f+0.01
+ ymax = args[3].to_f+0.01
+ baselong = args[4]
+ basey = args[5]
+ masterscale = args[6]
- pointlist = ActiveRecord::Base.connection.select_all("SELECT current_nodes.id,current_nodes.latitude*0.0000001 AS lat,current_nodes.longitude*0.0000001 AS lng,current_nodes.tags "+
- " FROM current_nodes "+
- " LEFT OUTER JOIN current_segments cs1 ON cs1.node_a=current_nodes.id "+
- " LEFT OUTER JOIN current_segments cs2 ON cs2.node_b=current_nodes.id "+
- " WHERE "+OSM.sql_for_area(ymin, xmin, ymax, xmax, "current_nodes.")+
- " AND cs1.id IS NULL AND cs2.id IS NULL "+
- " AND current_nodes.visible=1")
- points = pointlist.collect {|a| [a['id'],long2coord(a['lng'].to_f,baselong,masterscale),lat2coord(a['lat'].to_f,basey,masterscale),tag2array(a['tags'])] } # get a list of node ids and their tags
- return [ways,points]
+ sql=<<-EOF
+ SELECT DISTINCT current_ways.id
+ FROM current_nodes,way_nodes,current_ways
+ WHERE #{OSM.sql_for_area(ymin, xmin, ymax, xmax, "current_nodes.")}
+ AND way_nodes.node_id=current_nodes.id
+ AND way_nodes.id=current_ways.id
+ AND current_nodes.visible=0
+ AND current_ways.visible=0
+ EOF
+ waylist = ActiveRecord::Base.connection.select_all(sql)
+ ways = waylist.collect {|a| a['id'].to_i }
+ [ways]
end
- # ----- getway (objectname, way, baselong, basey, masterscale)
- # returns objectname, array of co-ordinates, attributes,
- # xmin,xmax,ymin,ymax
+
+ # ----- getway
+
+ # Get a way with all of it's nodes and tags
+ # The input is an array with the following components, in order:
+ # 0. wayid - the ID of the way to get
+ # 1. baselong - origin of SWF map (longitude)
+ # 2. basey - origin of SWF map (latitude)
+ # 3. masterscale - SWF map scale
+ #
+ # The output is an array which contains all the nodes (with projected
+ # latitude and longitude) and tags for a way (and all the nodes tags).
+ # It also has the way's unprojected (WGS84) bbox.
+ #
+ # FIXME: The server really shouldn't be figuring out a ways bounding box and doing projection for potlatch
+ # FIXME: the argument splitting should be done in the 'talk' method, not here
def getway(args)
- objname,wayid,baselong,basey,masterscale=args
+ wayid,baselong,basey,masterscale = args
wayid = wayid.to_i
- points = []
- lastid = -1
- xmin = ymin = 999999
- xmax = ymax = -999999
RAILS_DEFAULT_LOGGER.info(" Message: getway, id=#{wayid}")
- readwayquery(wayid).each {|row|
- xs1=long2coord(row['long1'].to_f,baselong,masterscale); ys1=lat2coord(row['lat1'].to_f,basey,masterscale)
- xs2=long2coord(row['long2'].to_f,baselong,masterscale); ys2=lat2coord(row['lat2'].to_f,basey,masterscale)
- points << [xs1,ys1,row['id1'].to_i,0,tag2array(row['tags1']),0] if (row['id1'].to_i!=lastid)
- lastid = row['id2'].to_i
- points << [xs2,ys2,row['id2'].to_i,1,tag2array(row['tags2']),row['segment_id'].to_i]
- xmin = [xmin,row['long1'].to_f,row['long2'].to_f].min
- xmax = [xmax,row['long1'].to_f,row['long2'].to_f].max
- ymin = [ymin,row['lat1'].to_f,row['lat2'].to_f].min
- ymax = [ymax,row['lat1'].to_f,row['lat2'].to_f].max
+ way = Way.find_eager(wayid)
+ long_array = []
+ lat_array = []
+ points = []
+
+ way.way_nodes.each do |way_node|
+ node = way_node.node # get the node record
+ projected_longitude = node.lon_potlatch(baselong,masterscale) # do projection for potlatch
+ projected_latitude = node.lat_potlatch(basey,masterscale)
+ id = node.id
+ tags_hash = node.tags_as_hash
+
+ points << [projected_longitude, projected_latitude, id, nil, tags_hash]
+ long_array << projected_longitude
+ lat_array << projected_latitude
+ end
+
+ [wayid,points,way.tags,long_array.min,long_array.max,lat_array.min,lat_array.max]
+ end
+
+ # ----- getway_old
+ # returns old version of way
+
+ # in: [0] way id,
+ # [1] way version to get (or -1 for "last deleted version")
+ # [2] baselong, [3] basey, [4] masterscale
+ # does: gets old version of way and all constituent nodes
+ # for undelete, always uses the most recent version of each node
+ # (even if it's moved)
+ # for revert, uses the historic version of each node, but if that node is
+ # still visible and has been changed since, generates a new node id
+ # out: [0] 0 (code for success), [1] SWF object name,
+ # [2] array of points (as getway _except_ [3] is node.visible?, 0 or 1),
+ # [4] xmin, [5] xmax, [6] ymin, [7] ymax (unprojected bbox),
+ # [8] way version
+
+ def getway_old(args)
+ RAILS_DEFAULT_LOGGER.info(" Message: getway_old (server is #{SERVER_URL})")
+ # if SERVER_URL=="www.openstreetmap.org" then return -1,"Revert is not currently enabled on the OpenStreetMap server." end
+
+ wayid,version,baselong,basey,masterscale=args
+ wayid = wayid.to_i
+ version = version.to_i
+ xmin = ymin = 999999
+ xmax = ymax = -999999
+ points=[]
+ if version<0
+ historic=false
+ version=getlastversion(wayid,version)
+ else
+ historic=true
+ end
+ readwayquery_old(wayid,version,historic).each { |row|
+ points<<[long2coord(row['longitude'].to_f,baselong,masterscale),lat2coord(row['latitude'].to_f,basey,masterscale),row['id'].to_i,row['visible'].to_i,tag2array(row['tags'].to_s)]
+ xmin=[xmin,row['longitude'].to_f].min
+ xmax=[xmax,row['longitude'].to_f].max
+ ymin=[ymin,row['latitude' ].to_f].min
+ ymax=[ymax,row['latitude' ].to_f].max
}
+ # get tags from this version
attributes={}
- attrlist=ActiveRecord::Base.connection.select_all "SELECT k,v FROM current_way_tags WHERE id=#{wayid}"
- attrlist.each {|a| attributes[a['k']]=a['v'] }
+ attrlist=ActiveRecord::Base.connection.select_all "SELECT k,v FROM way_tags WHERE id=#{wayid} AND version=#{version}"
+ attrlist.each {|a| attributes[a['k'].gsub(':','|')]=a['v'] }
+ attributes['history']="Retrieved from v"+version.to_s
- [objname,points,attributes,xmin,xmax,ymin,ymax]
+ [0,wayid,points,attributes,xmin,xmax,ymin,ymax,version]
end
- # ----- putway (user token, way, array of co-ordinates, array of attributes,
- # baselong, basey, masterscale)
- # returns current way ID, new way ID, hash of renumbered nodes,
- # xmin,xmax,ymin,ymax
+ # ----- getway_history
+ # find history of a way
+
+ # in: [0] way id
+ # does: finds history of a way
+ # out: [0] array of previous versions (where each is
+ # [0] version, [1] db timestamp (string),
+ # [2] visible 0 or 1,
+ # [3] username or 'anonymous' (string))
- def putway(args)
- usertoken,originalway,points,attributes,baselong,basey,masterscale=args
+ def getway_history(args)
+ wayid=args[0]
+ history=[]
+ sql=<<-EOF
+ SELECT version,timestamp,visible,display_name,data_public
+ FROM ways,users
+ WHERE ways.id=#{wayid}
+ AND ways.user_id=users.id
+ AND ways.visible=1
+ ORDER BY version DESC
+ EOF
+ histlist=ActiveRecord::Base.connection.select_all(sql)
+ histlist.each { |row|
+ if row['data_public'].to_i==1 then user=row['display_name'] else user='anonymous' end
+ history<<[row['version'],row['timestamp'],row['visible'],user]
+ }
+ [history]
+ end
+
+ # ----- putway
+ # saves a way to the database
+
+ # in: [0] user token (string),
+ # [1] original way id (may be negative),
+ # [2] array of points (as getway/getway_old),
+ # [3] hash of way tags,
+ # [4] original way version (0 if not a reverted/undeleted way),
+ # [5] baselong, [6] basey, [7] masterscale
+ # does: saves way to the database
+ # all constituent nodes are created/updated as necessary
+ # (or deleted if they were in the old version and are otherwise unused)
+ # out: [0] 0 (code for success), [1] original way id (unchanged),
+ # [2] new way id, [3] hash of renumbered nodes (old id=>new id),
+ # [4] xmin, [5] xmax, [6] ymin, [7] ymax (unprojected bbox)
+
+ def putway(args,renumberednodes)
+ RAILS_DEFAULT_LOGGER.info(" putway started")
+ usertoken,originalway,points,attributes,oldversion,baselong,basey,masterscale=args
uid=getuserid(usertoken)
- return if !uid
- db_uqs='uniq'+uid.to_s+originalway.to_i.abs.to_s+Time.new.to_i.to_s # temp uniquesegments table name, typically 51 chars
- db_uqn='unin'+uid.to_s+originalway.to_i.abs.to_s+Time.new.to_i.to_s # temp uniquenodes table name, typically 51 chars
- db_now='@now'+uid.to_s+originalway.to_i.abs.to_s+Time.new.to_i.to_s # 'now' variable name, typically 51 chars
+ if !uid then return -1,"You are not logged in, so the way could not be saved." end
+
+ RAILS_DEFAULT_LOGGER.info(" putway authenticated happily")
+ db_uqn='unin'+(rand*100).to_i.to_s+uid.to_s+originalway.to_i.abs.to_s+Time.new.to_i.to_s # temp uniquenodes table name, typically 51 chars
+ db_now='@now'+(rand*100).to_i.to_s+uid.to_s+originalway.to_i.abs.to_s+Time.new.to_i.to_s # 'now' variable name, typically 51 chars
ActiveRecord::Base.connection.execute("SET #{db_now}=NOW()")
originalway=originalway.to_i
+ oldversion=oldversion.to_i
RAILS_DEFAULT_LOGGER.info(" Message: putway, id=#{originalway}")
+ # -- Temporary check for null IDs
+
+ 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
+ end
+
# -- 3. read original way into memory
- xc={}; yc={}; tagc={}; seg={}
+ xc={}; yc={}; tagc={}; vc={}
if originalway>0
way=originalway
- readwayquery(way).each { |row|
- id1=row['id1'].to_i; xc[id1]=row['long1'].to_f; yc[id1]=row['lat1'].to_f; tagc[id1]=row['tags1']
- id2=row['id2'].to_i; xc[id2]=row['long2'].to_f; yc[id2]=row['lat2'].to_f; tagc[id2]=row['tags2']
- seg[row['segment_id'].to_i]=id1.to_s+'-'+id2.to_s
+ if oldversion==0 then r=readwayquery(way,false)
+ else r=readwayquery_old(way,oldversion,true) end
+ r.each { |row|
+ id=row['id'].to_i
+ if (id>0) then
+ xc[id]=row['longitude'].to_f
+ yc[id]=row['latitude' ].to_f
+ tagc[id]=row['tags']
+ vc[id]=row['visible'].to_i
+ end
}
ActiveRecord::Base.connection.update("UPDATE current_ways SET timestamp=#{db_now},user_id=#{uid},visible=1 WHERE id=#{way}")
else
# -- 5. compare nodes and update xmin,xmax,ymin,ymax
- xmin = ymin = 999999
- xmax = ymax = -999999
- insertsql = ''
- renumberednodes={}
+ xmin=ymin= 999999
+ xmax=ymax=-999999
+ insertsql=''
+ nodelist=[]
points.each_index do |i|
xs=coord2long(points[i][0],masterscale,baselong)
ymin=[ys,ymin].min; ymax=[ys,ymax].max
node=points[i][2].to_i
tagstr=array2tag(points[i][4])
- tagstr=tagstr.gsub(/[\000-\037]/,"")
tagsql="'"+sqlescape(tagstr)+"'"
lat=(ys * 10000000).round
long=(xs * 10000000).round
# compare node
if node<0
# new node - create
- if renumberednodes[node.to_s].nil?
+ if renumberednodes[node.to_s].nil?
newnode=ActiveRecord::Base.connection.insert("INSERT INTO current_nodes ( latitude,longitude,timestamp,user_id,visible,tags,tile) VALUES ( #{lat},#{long},#{db_now},#{uid},1,#{tagsql},#{tile})")
- ActiveRecord::Base.connection.insert("INSERT INTO nodes (id,latitude,longitude,timestamp,user_id,visible,tags,tile) VALUES (#{newnode},#{lat},#{long},#{db_now},#{uid},1,#{tagsql},#{tile})")
+ ActiveRecord::Base.connection.insert("INSERT INTO nodes (id,latitude,longitude,timestamp,user_id,visible,tags,tile) VALUES (#{newnode},#{lat},#{long},#{db_now},#{uid},1,#{tagsql},#{tile})")
points[i][2]=newnode
+ nodelist.push(newnode)
renumberednodes[node.to_s]=newnode.to_s
- else
+ else
points[i][2]=renumberednodes[node.to_s].to_i
- end
+ end
elsif xc.has_key?(node)
+ nodelist.push(node)
# old node from original way - update
- if (xs!=xc[node] or ys!=yc[node] or tagstr!=tagc[node])
+ if ((xs/0.0000001).round!=(xc[node]/0.0000001).round or (ys/0.0000001).round!=(yc[node]/0.0000001).round or tagstr!=tagc[node] or vc[node]==0)
ActiveRecord::Base.connection.insert("INSERT INTO nodes (id,latitude,longitude,timestamp,user_id,visible,tags,tile) VALUES (#{node},#{lat},#{long},#{db_now},#{uid},1,#{tagsql},#{tile})")
ActiveRecord::Base.connection.update("UPDATE current_nodes SET latitude=#{lat},longitude=#{long},timestamp=#{db_now},user_id=#{uid},tags=#{tagsql},visible=1,tile=#{tile} WHERE id=#{node}")
end
end
- # -- 6.i compare segments
-
- numberedsegments={}
- seglist='' # list of existing segments that we want to keep
- for i in (0..(points.length-2))
- if (points[i+1][3].to_i==0) then next end
- segid=points[i+1][5].to_i
- from =points[i ][2].to_i
- to =points[i+1][2].to_i
- if seg.has_key?(segid)
- # if segment exists, check it still refers to the same nodes
- if seg[segid]=="#{from}-#{to}" then
- if (seglist!='') then seglist+=',' end; seglist+=segid.to_s
- next
- end
- elsif segid>0
- # not in previous version of way, but supplied, so assume
- # that it's come from makeway (i.e. unwayed segments)
- if (seglist!='') then seglist+=',' end; seglist+=segid.to_s
- next
- end
- segid=ActiveRecord::Base.connection.insert("INSERT INTO current_segments ( node_a,node_b,timestamp,user_id,visible,tags) VALUES ( #{from},#{to},#{db_now},#{uid},1,'')")
- ActiveRecord::Base.connection.insert("INSERT INTO segments (id,node_a,node_b,timestamp,user_id,visible,tags) VALUES (#{segid},#{from},#{to},#{db_now},#{uid},1,'')")
- points[i+1][5]=segid
- numberedsegments[(i+1).to_s]=segid.to_s
- end
-
-
- # -- 6.ii insert new way segments
-
- createuniquesegments(way,db_uqs,seglist) # segments which appear in this way but no other
+ # -- 6a. delete any nodes not in modified way
- # delete segments from uniquesegments (and not in modified way)
+ createuniquenodes(way,db_uqn,nodelist) # nodes which appear in this way but no other
sql=<<-EOF
- INSERT INTO segments (id,node_a,node_b,timestamp,user_id,visible)
- SELECT DISTINCT segment_id,node_a,node_b,#{db_now},#{uid},0
- FROM current_segments AS cs, #{db_uqs} AS us
- WHERE cs.id=us.segment_id AND cs.visible=1
- EOF
- ActiveRecord::Base.connection.insert(sql)
-
- sql=<<-EOF
- UPDATE current_segments AS cs, #{db_uqs} AS us
- SET cs.timestamp=#{db_now},cs.visible=0,cs.user_id=#{uid}
- WHERE cs.id=us.segment_id AND cs.visible=1
- EOF
- ActiveRecord::Base.connection.update(sql)
-
- # delete nodes not in modified way or any other segments
-
- createuniquenodes(db_uqs,db_uqn) # nodes which appear in this way but no other
-
- sql=<<-EOF
- INSERT INTO nodes (id,latitude,longitude,timestamp,user_id,visible,tile)
- SELECT DISTINCT cn.id,cn.latitude,cn.longitude,#{db_now},#{uid},0,cn.tile
- FROM current_nodes AS cn,#{db_uqn}
- WHERE cn.id=node_id
+ INSERT INTO nodes (id,latitude,longitude,timestamp,user_id,visible,tile)
+ SELECT DISTINCT cn.id,cn.latitude,cn.longitude,#{db_now},#{uid},0,cn.tile
+ FROM current_nodes AS cn,#{db_uqn}
+ WHERE cn.id=node_id
EOF
ActiveRecord::Base.connection.insert(sql)
EOF
ActiveRecord::Base.connection.update(sql)
- ActiveRecord::Base.connection.execute("DROP TABLE #{db_uqs}")
- ActiveRecord::Base.connection.execute("DROP TABLE #{db_uqn}")
+ deleteuniquenoderelations(db_uqn,uid,db_now)
+ ActiveRecord::Base.connection.execute("DROP TEMPORARY TABLE #{db_uqn}")
- # insert new version of route into way_segments
+ # 6b. insert new version of route into way_nodes
insertsql =''
currentsql=''
sequence =1
- for i in (0..(points.length-2))
- if (points[i+1][3].to_i==0) then next end
+ points.each do |p|
if insertsql !='' then insertsql +=',' end
if currentsql!='' then currentsql+=',' end
- insertsql +="(#{way},#{points[i+1][5]},#{version})"
- currentsql+="(#{way},#{points[i+1][5]},#{sequence})"
+ insertsql +="(#{way},#{p[2]},#{sequence},#{version})"
+ currentsql+="(#{way},#{p[2]},#{sequence})"
sequence +=1
end
- ActiveRecord::Base.connection.execute("DELETE FROM current_way_segments WHERE id=#{way}");
- ActiveRecord::Base.connection.insert("INSERT INTO way_segments (id,segment_id,version ) VALUES #{insertsql}");
- ActiveRecord::Base.connection.insert("INSERT INTO current_way_segments (id,segment_id,sequence_id) VALUES #{currentsql}");
+ ActiveRecord::Base.connection.execute("DELETE FROM current_way_nodes WHERE id=#{way}");
+ ActiveRecord::Base.connection.insert( "INSERT INTO way_nodes (id,node_id,sequence_id,version) VALUES #{insertsql}");
+ ActiveRecord::Base.connection.insert( "INSERT INTO current_way_nodes (id,node_id,sequence_id ) VALUES #{currentsql}");
# -- 7. insert new way tags
if v[0,6]=='(type ' then next end
if insertsql !='' then insertsql +=',' end
if currentsql!='' then currentsql+=',' end
- k=k.gsub(/[\000-\037]/,"")
- v=v.gsub(/[\000-\037]/,"")
- insertsql +="(#{way},'"+sqlescape(k)+"','"+sqlescape(v)+"',#{version})"
- currentsql+="(#{way},'"+sqlescape(k)+"','"+sqlescape(v)+"')"
+ insertsql +="(#{way},'"+sqlescape(k.gsub('|',':'))+"','"+sqlescape(v)+"',#{version})"
+ currentsql+="(#{way},'"+sqlescape(k.gsub('|',':'))+"','"+sqlescape(v)+"')"
end
ActiveRecord::Base.connection.execute("DELETE FROM current_way_tags WHERE id=#{way}")
if (insertsql !='') then ActiveRecord::Base.connection.insert("INSERT INTO way_tags (id,k,v,version) VALUES #{insertsql}" ) end
if (currentsql!='') then ActiveRecord::Base.connection.insert("INSERT INTO current_way_tags (id,k,v) VALUES #{currentsql}") end
- [originalway,way,renumberednodes,numberedsegments,xmin,xmax,ymin,ymax]
+ [0,originalway,way,renumberednodes,xmin,xmax,ymin,ymax]
end
- # ----- putpoi (user token, id, x,y,tag array,visible,baselong,basey,masterscale)
- # returns current id, new id
- # if new: add new row to current_nodes and nodes
- # if old: add new row to nodes, update current_nodes
+ # ----- putpoi
+ # save POI to the database
+
+ # in: [0] user token (string),
+ # [1] original node id (may be negative),
+ # [2] projected longitude, [3] projected latitude,
+ # [4] hash of tags, [5] visible (0 to delete, 1 otherwise),
+ # [6] baselong, [7] basey, [8] masterscale
+ # does: saves POI node to the database
+ # refuses save if the node has since become part of a way
+ # out: [0] 0 (success), [1] original node id (unchanged),
+ # [2] new node id
def putpoi(args)
usertoken,id,x,y,tags,visible,baselong,basey,masterscale=args
uid=getuserid(usertoken)
- return if !uid
- db_now='@now'+uid.to_s+id.to_i.abs.to_s+Time.new.to_i.to_s # 'now' variable name, typically 51 chars
+ if !uid then return -1,"You are not logged in, so the point could not be saved." end
+
+ db_now='@now'+(rand*100).to_i.to_s+uid.to_s+id.to_i.abs.to_s+Time.new.to_i.to_s # 'now' variable name, typically 51 chars
ActiveRecord::Base.connection.execute("SET #{db_now}=NOW()")
id=id.to_i
visible=visible.to_i
+ if visible==0 then
+ # if deleting, check node hasn't become part of a way
+ inway=ActiveRecord::Base.connection.select_one("SELECT cw.id FROM current_ways cw,current_way_nodes cwn WHERE cw.id=cwn.id AND cw.visible=1 AND cwn.node_id=#{id} LIMIT 1")
+ unless inway.nil? then return -1,"The point has since become part of a way, so you cannot save it as a POI." end
+ deleteitemrelations(id,'node',uid,db_now)
+ end
+
x=coord2long(x.to_f,masterscale,baselong)
y=coord2lat(y.to_f,masterscale,basey)
tagsql="'"+sqlescape(array2tag(tags))+"'"
lat=(y * 10000000).round
long=(x * 10000000).round
tile=QuadTile.tile_for_point(y, x)
-
+
if (id>0) then
- ActiveRecord::Base.connection.insert("INSERT INTO nodes (id,latitude,longitude,timestamp,user_id,visible,tags,tile) VALUES (#{id},#{lat},#{long},#{db_now},#{uid},#{visible},#{tagsql},#{tile})");
- ActiveRecord::Base.connection.update("UPDATE current_nodes SET latitude=#{lat},longitude=#{long},timestamp=#{db_now},user_id=#{uid},visible=#{visible},tags=#{tagsql},tile=#{tile} WHERE id=#{id}");
- newid=id
+ ActiveRecord::Base.connection.insert("INSERT INTO nodes (id,latitude,longitude,timestamp,user_id,visible,tags,tile) VALUES (#{id},#{lat},#{long},#{db_now},#{uid},#{visible},#{tagsql},#{tile})");
+ ActiveRecord::Base.connection.update("UPDATE current_nodes SET latitude=#{lat},longitude=#{long},timestamp=#{db_now},user_id=#{uid},visible=#{visible},tags=#{tagsql},tile=#{tile} WHERE id=#{id}");
+ newid=id
else
- newid=ActiveRecord::Base.connection.insert("INSERT INTO current_nodes (latitude,longitude,timestamp,user_id,visible,tags,tile) VALUES (#{lat},#{long},#{db_now},#{uid},#{visible},#{tagsql},#{tile})");
- ActiveRecord::Base.connection.update("INSERT INTO nodes (id,latitude,longitude,timestamp,user_id,visible,tags,tile) VALUES (#{newid},#{lat},#{long},#{db_now},#{uid},#{visible},#{tagsql},#{tile})");
+ newid=ActiveRecord::Base.connection.insert("INSERT INTO current_nodes (latitude,longitude,timestamp,user_id,visible,tags,tile) VALUES (#{lat},#{long},#{db_now},#{uid},#{visible},#{tagsql},#{tile})");
+ ActiveRecord::Base.connection.update("INSERT INTO nodes (id,latitude,longitude,timestamp,user_id,visible,tags,tile) VALUES (#{newid},#{lat},#{long},#{db_now},#{uid},#{visible},#{tagsql},#{tile})");
end
- [id,newid]
+ [0,id,newid]
end
- # ----- getpoi (id,baselong,basey,masterscale)
- # returns id,x,y,tag array
-
+ # ----- getpoi
+ # read POI from database
+ # (only called on revert: POIs are usually read by whichways)
+
+ # in: [0] node id, [1] baselong, [2] basey, [3] masterscale
+ # does: reads POI
+ # out: [0] id (unchanged), [1] projected long, [2] projected lat,
+ # [3] hash of tags
+
def getpoi(args)
- id,baselong,basey,masterscale=args; id=id.to_i
- poi=ActiveRecord::Base.connection.select_one("SELECT latitude*0.0000001 AS lat,longitude*0.0000001 AS lng,tags "+
- "FROM current_nodes WHERE visible=1 AND id=#{id}")
- if poi.nil? then return [nil,nil,nil,''] end
- [id,
- long2coord(poi['lng'].to_f,baselong,masterscale),
- lat2coord(poi['lat'].to_f,basey,masterscale),
- tag2array(poi['tags'])]
+ id,baselong,basey,masterscale=args; id=id.to_i
+ poi=ActiveRecord::Base.connection.select_one("SELECT latitude*0.0000001 AS lat,longitude*0.0000001 AS lng,tags "+
+ "FROM current_nodes WHERE visible=1 AND id=#{id}")
+ if poi.nil? then return [nil,nil,nil,''] end
+ [id,
+ long2coord(poi['lng'].to_f,baselong,masterscale),
+ lat2coord(poi['lat'].to_f,basey,masterscale),
+ tag2array(poi['tags'])]
end
- # ----- deleteway (user token, way)
- # returns way ID only
+ # ----- deleteway
+ # delete way and constituent nodes from database
+
+ # in: [0] user token (string), [1] way id
+ # does: deletes way from db and any constituent nodes not used elsewhere
+ # also removes ways/nodes from any relations they're in
+ # out: [0] 0 (success), [1] way id (unchanged)
def deleteway(args)
usertoken,way=args
RAILS_DEFAULT_LOGGER.info(" Message: deleteway, id=#{way}")
+ uid=getuserid(usertoken)
+ if !uid then return -1,"You are not logged in, so the way could not be deleted." end
- uid=getuserid(usertoken); if !uid then return end
way=way.to_i
-
- db_uqs='uniq'+uid.to_s+way.to_i.abs.to_s+Time.new.to_i.to_s # temp uniquesegments table name, typically 51 chars
- db_uqn='unin'+uid.to_s+way.to_i.abs.to_s+Time.new.to_i.to_s # temp uniquenodes table name, typically 51 chars
- db_now='@now'+uid.to_s+way.to_i.abs.to_s+Time.new.to_i.to_s # 'now' variable name, typically 51 chars
+ db_uqn='unin'+(rand*100).to_i.to_s+uid.to_s+way.to_i.abs.to_s+Time.new.to_i.to_s # temp uniquenodes table name, typically 51 chars
+ db_now='@now'+(rand*100).to_i.to_s+uid.to_s+way.to_i.abs.to_s+Time.new.to_i.to_s # 'now' variable name, typically 51 chars
ActiveRecord::Base.connection.execute("SET #{db_now}=NOW()")
- createuniquesegments(way,db_uqs,'')
- # - delete any otherwise unused segments
+ # - delete any otherwise unused nodes
- sql=<<-EOF
- INSERT INTO segments (id,node_a,node_b,timestamp,user_id,visible)
- SELECT DISTINCT segment_id,node_a,node_b,#{db_now},#{uid},0
- FROM current_segments AS cs, #{db_uqs} AS us
- WHERE cs.id=us.segment_id
- EOF
- ActiveRecord::Base.connection.insert(sql)
-
- sql=<<-EOF
- UPDATE current_segments AS cs, #{db_uqs} AS us
- SET cs.timestamp=#{db_now},cs.visible=0,cs.user_id=#{uid}
- WHERE cs.id=us.segment_id
- EOF
- ActiveRecord::Base.connection.update(sql)
+ createuniquenodes(way,db_uqn,[])
- # - delete any unused nodes
-
- createuniquenodes(db_uqs,db_uqn)
+ # unless (preserve.empty?) then
+ # ActiveRecord::Base.connection.execute("DELETE FROM #{db_uqn} WHERE node_id IN ("+preserve.join(',')+")")
+ # end
sql=<<-EOF
- INSERT INTO nodes (id,latitude,longitude,timestamp,user_id,visible,tile)
- SELECT DISTINCT cn.id,cn.latitude,cn.longitude,#{db_now},#{uid},0,cn.tile
- FROM current_nodes AS cn,#{db_uqn}
- WHERE cn.id=node_id
+ INSERT INTO nodes (id,latitude,longitude,timestamp,user_id,visible,tile)
+ SELECT DISTINCT cn.id,cn.latitude,cn.longitude,#{db_now},#{uid},0,cn.tile
+ FROM current_nodes AS cn,#{db_uqn}
+ WHERE cn.id=node_id
EOF
ActiveRecord::Base.connection.insert(sql)
WHERE cn.id=node_id
EOF
ActiveRecord::Base.connection.update(sql)
-
- ActiveRecord::Base.connection.execute("DROP TABLE #{db_uqs}")
- ActiveRecord::Base.connection.execute("DROP TABLE #{db_uqn}")
+
+ deleteuniquenoderelations(db_uqn,uid,db_now)
+ ActiveRecord::Base.connection.execute("DROP TEMPORARY TABLE #{db_uqn}")
# - delete way
-
+
ActiveRecord::Base.connection.insert("INSERT INTO ways (id,user_id,timestamp,visible) VALUES (#{way},#{uid},#{db_now},0)")
ActiveRecord::Base.connection.update("UPDATE current_ways SET user_id=#{uid},timestamp=#{db_now},visible=0 WHERE id=#{way}")
- ActiveRecord::Base.connection.execute("DELETE FROM current_way_segments WHERE id=#{way}")
+ ActiveRecord::Base.connection.execute("DELETE FROM current_way_nodes WHERE id=#{way}")
ActiveRecord::Base.connection.execute("DELETE FROM current_way_tags WHERE id=#{way}")
-
- way
-end
+ deleteitemrelations(way,'way',uid,db_now)
+ [0,way]
+ end
-# ----- makeway(x,y,baselong,basey,masterscale)
-# returns way made from unwayed segments
-def makeway(args)
- usertoken,x,y,baselong,basey,masterscale=args
- uid=getuserid(usertoken)
- return if !uid
-
- points=[]
- toreverse=[] # segments to reverse
- nodesused={} # so we don't go over the same node twice
-
- # - find start point near x
-
- xc=coord2long(x,masterscale,baselong)
- yc=coord2lat(y,masterscale,basey)
-
- RAILS_DEFAULT_LOGGER.info(" Message: makeway, xc=#{xc}, y=#{yc}")
-
- xs1=xc-0.001; xs2=xc+0.001
- ys1=yc-0.001; ys2=yc+0.001
-
- sql=<<-EOF
- SELECT cn1.latitude*0.0000001 AS lat1,cn1.longitude*0.0000001 AS lon1,cn1.id AS id1,
- cn2.latitude*0.0000001 AS lat2,cn2.longitude*0.0000001 AS lon2,cn2.id AS id2, cs.id AS segid
- FROM current_nodes AS cn1,
- current_nodes AS cn2,
- current_segments AS cs
- LEFT OUTER JOIN current_way_segments ON segment_id=cs.id
- WHERE (cn1.longitude BETWEEN #{xs1} AND #{xs2})
- AND (cn1.latitude BETWEEN #{ys1} AND #{ys2})
- AND segment_id IS NULL
- AND cs.visible=1
- AND cn1.id=node_a AND cn1.visible=1
- AND cn2.id=node_b AND cn2.visible=1
- ORDER BY SQRT(POW(cn1.longitude-#{xc},2)+
- POW(cn1.latitude -#{yc},2))
- LIMIT 1
- EOF
- row=ActiveRecord::Base.connection.select_one sql
- if row.nil? then return [0,0,0,0,0] end
- xs1=long2coord(row['lon1'].to_f,baselong,masterscale); ys1=lat2coord(row['lat1'].to_f,basey,masterscale)
- xs2=long2coord(row['lon2'].to_f,baselong,masterscale); ys2=lat2coord(row['lat2'].to_f,basey,masterscale)
- xmin=[xs1,xs2].min; xmax=[xs1,xs2].max
- ymin=[ys1,ys2].min; ymax=[ys1,ys2].max
- nodesused[row['id1'].to_i]=true
- nodesused[row['id2'].to_i]=true
- points<<[xs1,ys1,row['id1'].to_i,1,{},0]
- points<<[xs2,ys2,row['id2'].to_i,1,{},row['segid'].to_i]
-
- # - extend at start, then end
- while (a,point,nodesused,toreverse=findconnect(points[0][2],nodesused,'b',toreverse,baselong,basey,masterscale))[0]
- points[0][5]=point[5]; point[5]=0 # segment leads to next node
- points.unshift(point)
- xmin=[point[0],xmin].min; xmax=[point[0],xmax].max
- ymin=[point[1],ymin].min; ymax=[point[1],ymax].max
- end
- while (a,point,nodesused,toreverse=findconnect(points[-1][2],nodesused,'a',toreverse,baselong,basey,masterscale))[0]
- points.push(point)
- xmin=[point[0],xmin].min; xmax=[point[0],xmax].max
- ymin=[point[1],ymin].min; ymax=[point[1],ymax].max
- end
- points[0][3]=0 # start with a move
-
- # reverse segments in toreverse
- if toreverse.length>0
- sql=<<-EOF
- UPDATE current_segments c1, current_segments c2
- SET c1.node_a=c2.node_b,c1.node_b=c2.node_a,
- c1.timestamp=NOW(),c1.user_id=#{uid}
- WHERE c1.id=c2.id
- AND c1.id IN (#{toreverse.join(',')})
- EOF
- ActiveRecord::Base.connection.update sql
- sql=<<-EOF
- INSERT INTO segments
- (SELECT * FROM current_segments
- WHERE id IN (#{toreverse.join(',')}))
- EOF
- ActiveRecord::Base.connection.insert sql
- end
-
- [points,xmin,xmax,ymin,ymax]
-end
-def findconnect(id,nodesused,lookfor,toreverse,baselong,basey,masterscale)
- # get all segments with 'id' as a point
- # (to look for both node_a and node_b, UNION is faster than node_a=id OR node_b=id)!
- sql=<<-EOF
- SELECT cn1.latitude*0.0000001 AS lat1,cn1.longitude*0.0000001 AS lon1,cn1.id AS id1,
- cn2.latitude*0.0000001 AS lat2,cn2.longitude*0.0000001 AS lon2,cn2.id AS id2, cs.id AS segid
- FROM current_nodes AS cn1,
- current_nodes AS cn2,
- current_segments AS cs
- LEFT OUTER JOIN current_way_segments ON segment_id=cs.id
- WHERE segment_id IS NULL
- AND cs.visible=1
- AND cn1.id=node_a AND cn1.visible=1
- AND cn2.id=node_b AND cn2.visible=1
- AND node_a=#{id}
- UNION
- SELECT cn1.latitude*0.0000001 AS lat1,cn1.longitude*0.0000001 AS lon1,cn1.id AS id1,
- cn2.latitude*0.0000001 AS lat2,cn2.longitude*0.0000001 AS lon2,cn2.id AS id2, cs.id AS segid
- FROM current_nodes AS cn1,
- current_nodes AS cn2,
- current_segments AS cs
- LEFT OUTER JOIN current_way_segments ON segment_id=cs.id
- WHERE segment_id IS NULL
- AND cs.visible=1
- AND cn1.id=node_a AND cn1.visible=1
- AND cn2.id=node_b AND cn2.visible=1
- AND node_b=#{id}
- EOF
- connectlist=ActiveRecord::Base.connection.select_all sql
-
- if lookfor=='b' then tocol='id1'; tolat='lat1'; tolon='lon1'; fromcol='id2'; fromlat='lat2'; fromlon='lon2'
- else tocol='id2'; tolat='lat2'; tolon='lon2'; fromcol='id1'; fromlat='lat1'; fromlon='lon1'
- end
-
- # eliminate those already in the hash
- connex=0
- point=nil
- connectlist.each { |row|
- tonode=row[tocol].to_i
- fromnode=row[fromcol].to_i
- if id==tonode and !nodesused.has_key?(fromnode)
- # wrong way round; add, then add to 'segments to reverse' list
- connex+=1
- nodesused[fromnode]=true
- point=[long2coord(row[fromlon].to_f,baselong,masterscale),lat2coord(row[fromlat].to_f,basey,masterscale),fromnode,1,{},row['segid'].to_i]
- toreverse.push(row['segid'].to_i)
- elsif id==fromnode and !nodesused.has_key?(tonode)
- # right way round; just add
- connex+=1
- point=[long2coord(row[tolon].to_f,baselong,masterscale),lat2coord(row[tolat].to_f,basey,masterscale),tonode,1,{},row['segid'].to_i]
- nodesused[tonode]=true
- end
- }
-
- # if only one left, then add it; otherwise return false
- if connex!=1 or point.nil? then
- return [false,[],nodesused,toreverse]
- else
- return [true,point,nodesused,toreverse]
- end
-end
+ # ====================================================================
+ # Support functions for remote calls
+ def readwayquery(id,insistonvisible)
+ sql=<<-EOF
+ SELECT latitude*0.0000001 AS latitude,longitude*0.0000001 AS longitude,current_nodes.id,tags,visible
+ FROM current_way_nodes,current_nodes
+ WHERE current_way_nodes.id=#{id}
+ AND current_way_nodes.node_id=current_nodes.id
+ EOF
+ if insistonvisible then sql+=" AND current_nodes.visible=1 " end
+ sql+=" ORDER BY sequence_id"
+ ActiveRecord::Base.connection.select_all(sql)
+ end
-# ====================================================================
-# Support functions for remote calls
+ def getlastversion(id,version)
+ row=ActiveRecord::Base.connection.select_one("SELECT version FROM ways WHERE id=#{id} AND visible=1 ORDER BY version DESC LIMIT 1")
+ row['version']
+ end
-def readwayquery(id)
- ActiveRecord::Base.connection.select_all "SELECT n1.latitude*0.0000001 AS lat1,n1.longitude*0.0000001 AS long1,n1.id AS id1,n1.tags as tags1, "+
- " n2.latitude*0.0000001 AS lat2,n2.longitude*0.0000001 AS long2,n2.id AS id2,n2.tags as tags2,segment_id "+
- " FROM current_way_segments,current_segments,current_nodes AS n1,current_nodes AS n2 "+
- " WHERE current_way_segments.id=#{id} "+
- " AND segment_id=current_segments.id "+
- " AND current_segments.visible=1 "+
- " AND n1.id=node_a AND n2.id=node_b "+
- " AND n1.visible=1 AND n2.visible=1 "+
- " ORDER BY sequence_id"
-end
+ def readwayquery_old(id,version,historic)
+ # Node handling on undelete (historic=false):
+ # - always use the node specified, even if it's moved
+
+ # Node handling on revert (historic=true):
+ # - if it's a visible node, use a new node id (i.e. not mucking up the old one)
+ # which means the SWF needs to allocate new ids
+ # - if it's an invisible node, we can reuse the old node id
+
+ # get node list from specified version of way,
+ # and the _current_ lat/long/tags of each node
-def createuniquesegments(way,uqs_name,seglist)
- # Finds segments which appear in (previous version of) this way and no other
- sql=<<-EOF
- CREATE TEMPORARY TABLE #{uqs_name}
- SELECT a.segment_id
- FROM (SELECT DISTINCT segment_id FROM current_way_segments
- WHERE id = #{way}) a
- LEFT JOIN current_way_segments b
- ON b.segment_id = a.segment_id
- AND b.id != #{way}
- WHERE b.segment_id IS NULL
+ row=ActiveRecord::Base.connection.select_one("SELECT timestamp FROM ways WHERE version=#{version} AND id=#{id}")
+ waytime=row['timestamp']
+
+ sql=<<-EOF
+ SELECT cn.id,visible,latitude*0.0000001 AS latitude,longitude*0.0000001 AS longitude,tags
+ FROM way_nodes wn,current_nodes cn
+ WHERE wn.version=#{version}
+ AND wn.id=#{id}
+ AND wn.node_id=cn.id
+ ORDER BY sequence_id
+ EOF
+ rows=ActiveRecord::Base.connection.select_all(sql)
+
+ # if historic (full revert), get the old version of each node
+ # - if it's in another way now, generate a new id
+ # - if it's not in another way, use the old ID
+ if historic then
+ rows.each_index do |i|
+ sql=<<-EOF
+ SELECT latitude*0.0000001 AS latitude,longitude*0.0000001 AS longitude,tags,cwn.id AS currentway
+ FROM nodes n
+ LEFT JOIN current_way_nodes cwn
+ ON cwn.node_id=n.id
+ WHERE n.id=#{rows[i]['id']}
+ AND n.timestamp<="#{waytime}"
+ AND cwn.id!=#{id}
+ ORDER BY n.timestamp DESC
+ LIMIT 1
EOF
- if (seglist!='') then sql+=" AND a.segment_id NOT IN (#{seglist})" end
- ActiveRecord::Base.connection.execute(sql)
-end
+ row=ActiveRecord::Base.connection.select_one(sql)
+ unless row.nil? then
+ nx=row['longitude'].to_f
+ ny=row['latitude'].to_f
+ if (row['currentway'] && (nx!=rows[i]['longitude'].to_f or ny!=rows[i]['latitude'].to_f or row['tags']!=rows[i]['tags'])) then rows[i]['id']=-1 end
+ rows[i]['longitude']=nx
+ rows[i]['latitude' ]=ny
+ rows[i]['tags' ]=row['tags']
+ end
+ end
+ end
+ rows
+ end
-def createuniquenodes(uqs_name,uqn_name)
- # Finds nodes which appear in uniquesegments but no other segments
- sql=<<-EOF
- CREATE TEMPORARY TABLE #{uqn_name}
- SELECT DISTINCT node_id
- FROM (SELECT cn.id AS node_id
- FROM current_nodes AS cn,
- current_segments AS cs,
- #{uqs_name} AS us
- WHERE cs.id=us.segment_id
- AND cn.id=cs.node_a) AS n
- LEFT JOIN current_segments AS cs2 ON node_id=cs2.node_a AND cs2.visible=1
- LEFT JOIN current_segments AS cs3 ON node_id=cs3.node_b AND cs3.visible=1
- WHERE cs2.node_a IS NULL
- AND cs3.node_b IS NULL
- EOF
- ActiveRecord::Base.connection.execute(sql)
- sql=<<-EOF
- INSERT INTO #{uqn_name}
- SELECT DISTINCT node_id
- FROM (SELECT cn.id AS node_id
- FROM current_nodes AS cn,
- current_segments AS cs,
- #{uqs_name} AS us
- WHERE cs.id=us.segment_id
- AND cn.id=cs.node_b) AS n
- LEFT JOIN current_segments AS cs2 ON node_id=cs2.node_a AND cs2.visible=1
- LEFT JOIN current_segments AS cs3 ON node_id=cs3.node_b AND cs3.visible=1
- WHERE cs2.node_a IS NULL
- AND cs3.node_b IS NULL
- EOF
- ActiveRecord::Base.connection.execute(sql)
-end
+ def createuniquenodes(way,uqn_name,nodelist)
+ # Find nodes which appear in this way but no others
+ sql=<<-EOF
+ CREATE TEMPORARY TABLE #{uqn_name}
+ SELECT a.node_id
+ FROM (SELECT DISTINCT node_id FROM current_way_nodes
+ WHERE id=#{way}) a
+ LEFT JOIN current_way_nodes b
+ ON b.node_id=a.node_id
+ AND b.id!=#{way}
+ WHERE b.node_id IS NULL
+ EOF
+ unless nodelist.empty? then
+ sql+="AND a.node_id NOT IN ("+nodelist.join(',')+")"
+ end
+ ActiveRecord::Base.connection.execute(sql)
+ end
-def sqlescape(a)
- a.gsub("'","''").gsub(92.chr,92.chr+92.chr)
-end
-def tag2array(a)
- tags={}
- a.gsub(';;;','#%').split(';').each do |b|
- b.gsub!('#%',';;;')
- b.gsub!('===','#%')
- k,v=b.split('=')
- if k.nil? then k='' end
- if v.nil? then v='' end
- tags[k.gsub('#%','=')]=v.gsub('#%','=')
- end
- tags
-end
-def array2tag(a)
- str=''
- a.each do |k,v|
- if v=='' then next end
- if v[0,6]=='(type ' then next end
- if str!='' then str+=';' end
- str+=k.gsub(';',';;;').gsub('=','===')+'='+v.gsub(';',';;;').gsub('=','===')
+ # ====================================================================
+ # Relations handling
+ # deleteuniquenoderelations(uqn_name,uid,db_now)
+ # deleteitemrelations(way|node,'way'|'node',uid,db_now)
+
+ def deleteuniquenoderelations(uqn_name,uid,db_now)
+ sql=<<-EOF
+ SELECT node_id,cr.id FROM #{uqn_name},current_relation_members crm,current_relations cr
+ WHERE crm.member_id=node_id
+ AND crm.member_type='node'
+ AND crm.id=cr.id
+ AND cr.visible=1
+ EOF
+
+ relnodes=ActiveRecord::Base.connection.select_all(sql)
+ relnodes.each do |a|
+ removefromrelation(a['node_id'],'node',a['id'],uid,db_now)
+ end
end
- str
-end
-def getuserid(token)
- if (token =~ /^(.+)\+(.+)$/) then
- user = User.authenticate(:username => $1, :password => $2)
- else
- user = User.authenticate(:token => token)
+ def deleteitemrelations(objid,type,uid,db_now)
+ sql=<<-EOF
+ SELECT cr.id FROM current_relation_members crm,current_relations cr
+ WHERE crm.member_id=#{objid}
+ AND crm.member_type='#{type}'
+ AND crm.id=cr.id
+ AND cr.visible=1
+ EOF
+
+ relways=ActiveRecord::Base.connection.select_all(sql)
+ relways.each do |a|
+ removefromrelation(objid,type,a['id'],uid,db_now)
+ end
end
- return user ? user.id : nil;
-end
+ def removefromrelation(objid,type,relation,uid,db_now)
+ rver=ActiveRecord::Base.connection.insert("INSERT INTO relations (id,user_id,timestamp,visible) VALUES (#{relation},#{uid},#{db_now},1)")
+
+ tagsql=<<-EOF
+ INSERT INTO relation_tags (id,k,v,version)
+ SELECT id,k,v,#{rver} FROM current_relation_tags
+ WHERE id=#{relation}
+ EOF
+ ActiveRecord::Base.connection.insert(tagsql)
+
+ membersql=<<-EOF
+ INSERT INTO relation_members (id,member_type,member_id,member_role,version)
+ SELECT id,member_type,member_id,member_role,#{rver} FROM current_relation_members
+ WHERE id=#{relation}
+ AND (member_id!=#{objid} OR member_type!='#{type}')
+ EOF
+ ActiveRecord::Base.connection.insert(membersql)
+
+ ActiveRecord::Base.connection.update("UPDATE current_relations SET user_id=#{uid},timestamp=#{db_now} WHERE id=#{relation}")
+ ActiveRecord::Base.connection.execute("DELETE FROM current_relation_members WHERE id=#{relation} AND member_type='#{type}' AND member_id=#{objid}")
+ end
+ def sqlescape(a)
+ a.gsub(/[\000-\037]/,"").gsub("'","''").gsub(92.chr) {92.chr+92.chr}
+ end
+ def tag2array(a)
+ tags={}
+ Tags.split(a) do |k, v|
+ tags[k.gsub(':','|')]=v
+ end
+ tags
+ end
-# ====================================================================
-# AMF read subroutines
+ def array2tag(a)
+ tags = []
+ a.each do |k,v|
+ if v=='' then next end
+ if v[0,6]=='(type ' then next end
+ tags << [k.gsub('|',':'), v]
+ end
+ return Tags.join(tags)
+ end
-# ----- getint return two-byte integer
-# ----- getlong return four-byte long
-# ----- getstring return string with two-byte length
-# ----- getdouble return eight-byte double-precision float
-# ----- getobject return object/hash
-# ----- getarray return numeric array
+ def getuserid(token)
+ if (token =~ /^(.+)\+(.+)$/) then
+ user = User.authenticate(:username => $1, :password => $2)
+ else
+ user = User.authenticate(:token => token)
+ end
-def getint(s)
- s.getc*256+s.getc
-end
+ return user ? user.id : nil;
+ end
-def getlong(s)
- ((s.getc*256+s.getc)*256+s.getc)*256+s.getc
-end
-def getstring(s)
- len=s.getc*256+s.getc
- s.read(len)
-end
-def getdouble(s)
- a=s.read(8).unpack('G') # G big-endian, E little-endian
- a[0]
-end
+ # ====================================================================
+ # AMF read subroutines
-def getarray(s)
- len=getlong(s)
- arr=[]
- for i in (0..len-1)
- arr[i]=getvalue(s)
+ # ----- getint return two-byte integer
+ # ----- getlong return four-byte long
+ # ----- getstring return string with two-byte length
+ # ----- getdouble return eight-byte double-precision float
+ # ----- getobject return object/hash
+ # ----- getarray return numeric array
+
+ def getint(s)
+ s.getc*256+s.getc
end
- arr
-end
-def getobject(s)
- arr={}
- while (key=getstring(s))
- if (key=='') then break end
- arr[key]=getvalue(s)
+ def getlong(s)
+ ((s.getc*256+s.getc)*256+s.getc)*256+s.getc
end
- s.getc # skip the 9 'end of object' value
- arr
-end
-# ----- getvalue parse and get value
-
-def getvalue(s)
- case s.getc
- when 0; return getdouble(s) # number
- when 1; return s.getc # boolean
- when 2; return getstring(s) # string
- when 3; return getobject(s) # object/hash
- when 5; return nil # null
- when 6; return nil # undefined
- when 8; s.read(4) # mixedArray
- return getobject(s) # |
- when 10; return getarray(s) # array
- else; return nil # error
+ def getstring(s)
+ len=s.getc*256+s.getc
+ s.read(len)
end
-end
-# ====================================================================
-# AMF write subroutines
+ def getdouble(s)
+ a=s.read(8).unpack('G') # G big-endian, E little-endian
+ a[0]
+ end
-# ----- putdata envelope data into AMF writeable form
-# ----- encodevalue pack variables as AMF
+ def getarray(s)
+ len=getlong(s)
+ arr=[]
+ for i in (0..len-1)
+ arr[i]=getvalue(s)
+ end
+ arr
+ end
-def putdata(index,n)
- d =encodestring(index+"/onResult")
- d+=encodestring("null")
- d+=[-1].pack("N")
- d+=encodevalue(n)
-end
+ def getobject(s)
+ arr={}
+ while (key=getstring(s))
+ if (key=='') then break end
+ arr[key]=getvalue(s)
+ end
+ s.getc # skip the 9 'end of object' value
+ arr
+ end
-def encodevalue(n)
- case n.class.to_s
- when 'Array'
- a=10.chr+encodelong(n.length)
- n.each do |b|
- a+=encodevalue(b)
+ # ----- getvalue parse and get value
+
+ def getvalue(s)
+ case s.getc
+ when 0; return getdouble(s) # number
+ when 1; return s.getc # boolean
+ when 2; return getstring(s) # string
+ when 3; return getobject(s) # object/hash
+ when 5; return nil # null
+ when 6; return nil # undefined
+ when 8; s.read(4) # mixedArray
+ return getobject(s) # |
+ when 10;return getarray(s) # array
+ else; return nil # error
end
- a
- when 'Hash'
- a=3.chr
- n.each do |k,v|
- a+=encodestring(k)+encodevalue(v)
+ end
+
+ # ====================================================================
+ # AMF write subroutines
+
+ # ----- putdata envelope data into AMF writeable form
+ # ----- encodevalue pack variables as AMF
+
+ def putdata(index,n)
+ d =encodestring(index+"/onResult")
+ d+=encodestring("null")
+ d+=[-1].pack("N")
+ d+=encodevalue(n)
+ end
+
+ def encodevalue(n)
+ case n.class.to_s
+ when 'Array'
+ a=10.chr+encodelong(n.length)
+ n.each do |b|
+ a+=encodevalue(b)
+ end
+ a
+ when 'Hash'
+ a=3.chr
+ n.each do |k,v|
+ a+=encodestring(k)+encodevalue(v)
+ end
+ a+0.chr+0.chr+9.chr
+ when 'String'
+ 2.chr+encodestring(n)
+ when 'Bignum','Fixnum','Float'
+ 0.chr+encodedouble(n)
+ when 'NilClass'
+ 5.chr
+ else
+ RAILS_DEFAULT_LOGGER.error("Unexpected Ruby type for AMF conversion: "+n.class.to_s)
end
- a+0.chr+0.chr+9.chr
- when 'String'
- 2.chr+encodestring(n)
- when 'Bignum','Fixnum','Float'
- 0.chr+encodedouble(n)
- when 'NilClass'
- 5.chr
- else
- RAILS_DEFAULT_LOGGER.error("Unexpected Ruby type for AMF conversion: "+n.class.to_s)
end
-end
-# ----- encodestring encode string with two-byte length
-# ----- encodedouble encode number as eight-byte double precision float
-# ----- encodelong encode number as four-byte long
+ # ----- encodestring encode string with two-byte length
+ # ----- encodedouble encode number as eight-byte double precision float
+ # ----- encodelong encode number as four-byte long
-def encodestring(n)
- a,b=n.size.divmod(256)
- a.chr+b.chr+n
-end
+ def encodestring(n)
+ a,b=n.size.divmod(256)
+ a.chr+b.chr+n
+ end
-def encodedouble(n)
- [n].pack('G')
-end
+ def encodedouble(n)
+ [n].pack('G')
+ end
-def encodelong(n)
- [n].pack('N')
-end
+ def encodelong(n)
+ [n].pack('N')
+ end
-# ====================================================================
-# Co-ordinate conversion
+ # ====================================================================
+ # Co-ordinate conversion
-def lat2coord(a,basey,masterscale)
- -(lat2y(a)-basey)*masterscale+250
-end
+ def lat2coord(a,basey,masterscale)
+ -(lat2y(a)-basey)*masterscale+250
+ end
-def long2coord(a,baselong,masterscale)
- (a-baselong)*masterscale+350
-end
+ def long2coord(a,baselong,masterscale)
+ (a-baselong)*masterscale+350
+ end
-def lat2y(a)
- 180/Math::PI * Math.log(Math.tan(Math::PI/4+a*(Math::PI/180)/2))
-end
+ def lat2y(a)
+ 180/Math::PI * Math.log(Math.tan(Math::PI/4+a*(Math::PI/180)/2))
+ end
-def coord2lat(a,masterscale,basey)
- y2lat((a-250)/-masterscale+basey)
-end
+ def coord2lat(a,masterscale,basey)
+ y2lat((a-250)/-masterscale+basey)
+ end
-def coord2long(a,masterscale,baselong)
- (a-350)/masterscale+baselong
-end
+ def coord2long(a,masterscale,baselong)
+ (a-350)/masterscale+baselong
+ end
-def y2lat(a)
- 180/Math::PI * (2*Math.atan(Math.exp(a*Math::PI/180))-Math::PI/2)
-end
+ def y2lat(a)
+ 180/Math::PI * (2*Math.atan(Math.exp(a*Math::PI/180))-Math::PI/2)
+ end
end
projects / rails.git / blobdiff