def talk
req=StringIO.new(request.raw_post+0.chr) # Get POST data as request
- # (cf http://www.ruby-forum.com/topic/122163)
+ # (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
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 '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))
+ 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
def getpresets
RAILS_DEFAULT_LOGGER.info(" Message: getpresets")
- # Read preset menus
+ # Read preset menus
presets={}
presetmenus={}; presetmenus['point']=[]; presetmenus['way']=[]; presetmenus['POI']=[]
presetnames={}; presetnames['point']={}; presetnames['way']={}; presetnames['POI']={}
presettype=''
presetcategory=''
-# StringIO.open(txt) do |file|
- File.open("#{RAILS_ROOT}/config/potlatch/presets.txt") do |file|
+ # StringIO.open(txt) do |file|
+ File.open("#{RAILS_ROOT}/config/potlatch/presets.txt") do |file|
file.each_line {|line|
t=line.chomp
if (t=~/(\w+)\/(\w+)/) then
end
}
end
-
+
# Read colours/styling
- colours={}; casing={}; areas={}
- File.open("#{RAILS_ROOT}/config/potlatch/colours.txt") do |file|
- file.each_line {|line|
- t=line.chomp
- if (t=~/(\w+)\s+([^\s]+)\s+([^\s]+)\s+([^\s]+)/) then
- tag=$1
- if ($2!='-') then colours[tag]=$2.hex end
- if ($3!='-') then casing[tag]=$3.hex end
- if ($4!='-') then areas[tag]=$4.hex end
- end
- }
- end
-
- # Read auto-complete
- autotags={}; autotags['point']={}; autotags['way']={}; autotags['POI']={};
- File.open("#{RAILS_ROOT}/config/potlatch/autocomplete.txt") do |file|
- file.each_line {|line|
- t=line.chomp
- if (t=~/^(\w+)\/(\w+)\s+(.+)$/) then
- tag=$1; type=$2; values=$3
- if values=='-' then autotags[type][tag]=[]
- else autotags[type][tag]=values.split(',').sort.reverse end
- end
- }
- end
-
+ colours={}; casing={}; areas={}
+ File.open("#{RAILS_ROOT}/config/potlatch/colours.txt") do |file|
+ file.each_line {|line|
+ t=line.chomp
+ if (t=~/(\w+)\s+([^\s]+)\s+([^\s]+)\s+([^\s]+)/) then
+ tag=$1
+ if ($2!='-') then colours[tag]=$2.hex end
+ if ($3!='-') then casing[tag]=$3.hex end
+ if ($4!='-') then areas[tag]=$4.hex end
+ end
+ }
+ end
+
+ # Read auto-complete
+ autotags={}; autotags['point']={}; autotags['way']={}; autotags['POI']={};
+ File.open("#{RAILS_ROOT}/config/potlatch/autocomplete.txt") do |file|
+ file.each_line {|line|
+ t=line.chomp
+ if (t=~/^(\w+)\/(\w+)\s+(.+)$/) then
+ tag=$1; type=$2; values=$3
+ if values=='-' then autotags[type][tag]=[]
+ else autotags[type][tag]=values.split(',').sort.reverse end
+ end
+ }
+ end
+
[presets,presetmenus,presetnames,colours,casing,areas,autotags]
end
# 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
basey = args[5]
masterscale = args[6]
- 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
+ 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]
+ [ways]
end
-
+
# ----- getway
# in: [0] SWF object name,
# [1] way id, [2] baselong, [3] basey, [4] masterscale
[objname,points,attributes,xmin,xmax,ymin,ymax]
end
-
+
# ----- getway_old
# returns old version of way
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
-
+ # if SERVER_URL=="www.openstreetmap.org" then return -1,"Revert is not currently enabled on the OpenStreetMap server." end
+
objname,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=[]
+ 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
+ # get tags from this version
attributes={}
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
+ attributes['history']="Retrieved from v"+version.to_s
[0,objname,points,attributes,xmin,xmax,ymin,ymax,version]
end
# [3] username or 'anonymous' (string))
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]
+ 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),
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
-
+ 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
+ # -- 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={}; vc={}
if originalway>0
way=originalway
- 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
- }
+ 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
way=ActiveRecord::Base.connection.insert("INSERT INTO current_ways (user_id,timestamp,visible) VALUES (#{uid},#{db_now},1)")
xmin=ymin= 999999
xmax=ymax=-999999
insertsql=''
- nodelist=[]
+ nodelist=[]
points.each_index do |i|
xs=coord2long(points[i][0],masterscale,baselong)
xmin=[xs,xmin].min; xmax=[xs,xmax].max
ymin=[ys,ymin].min; ymax=[ys,ymax].max
node=points[i][2].to_i
- tagstr=array2tag(points[i][4])
+ tagstr=array2tag(points[i][4])
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)
+ nodelist.push(node)
# old node from original way - update
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})")
end
- # -- 6a. delete any nodes not in modified way
+ # -- 6a. delete any nodes not in modified way
createuniquenodes(way,db_uqn,nodelist) # 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)
- deleteuniquenoderelations(db_uqn,uid,db_now)
+ deleteuniquenoderelations(db_uqn,uid,db_now)
ActiveRecord::Base.connection.execute("DROP TEMPORARY TABLE #{db_uqn}")
- # 6b. insert new version of route into way_nodes
+ # 6b. insert new version of route into way_nodes
insertsql =''
currentsql=''
# ----- putpoi
# save POI to the database
-
+
# in: [0] user token (string),
# [1] original node id (may be negative),
# [2] projected longitude, [3] projected latitude,
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
+ 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)
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
[0,id,newid]
end
# ----- 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
# 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
ActiveRecord::Base.connection.execute("SET #{db_now}=NOW()")
# - delete any otherwise unused nodes
-
+
createuniquenodes(way,db_uqn,[])
-# unless (preserve.empty?) then
-# ActiveRecord::Base.connection.execute("DELETE FROM #{db_uqn} WHERE node_id IN ("+preserve.join(',')+")")
-# end
+ # 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)
EOF
ActiveRecord::Base.connection.update(sql)
- deleteuniquenoderelations(db_uqn,uid,db_now)
+ 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_nodes WHERE id=#{way}")
ActiveRecord::Base.connection.execute("DELETE FROM current_way_tags WHERE id=#{way}")
- deleteitemrelations(way,'way',uid,db_now)
+ deleteitemrelations(way,'way',uid,db_now)
[0,way]
-end
+ end
-# ====================================================================
-# Support functions for remote calls
+ # ====================================================================
+ # Support functions for remote calls
-def readwayquery(id,insistonvisible)
- sql=<<-EOF
+ 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
+ if insistonvisible then sql+=" AND current_nodes.visible=1 " end
+ sql+=" ORDER BY sequence_id"
+ ActiveRecord::Base.connection.select_all(sql)
+ end
-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 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_old(id,version,historic)
+ # Node handling on undelete (historic=false):
+ # - always use the node specified, even if it's moved
-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
-
- 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
+ # 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
+
+ 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
+ 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
- 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
+ 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
+ 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
- rows
-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 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
-# ====================================================================
-# Relations handling
-# deleteuniquenoderelations(uqn_name,uid,db_now)
-# deleteitemrelations(way|node,'way'|'node',uid,db_now)
+ # ====================================================================
+ # 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
+ 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
+ relnodes=ActiveRecord::Base.connection.select_all(sql)
+ relnodes.each do |a|
+ removefromrelation(a['node_id'],'node',a['id'],uid,db_now)
+ end
+ end
-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
+ 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
-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
+ relways=ActiveRecord::Base.connection.select_all(sql)
+ relways.each do |a|
+ removefromrelation(objid,type,a['id'],uid,db_now)
+ end
+ 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)")
-def sqlescape(a)
- a.gsub(/[\000-\037]/,"").gsub("'","''").gsub(92.chr) {92.chr+92.chr}
-end
+ 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)
-def tag2array(a)
- tags={}
- Tags.split(a) do |k, v|
- tags[k.gsub(':','|')]=v
+ 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
- tags
-end
-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]
+
+ def sqlescape(a)
+ a.gsub(/[\000-\037]/,"").gsub("'","''").gsub(92.chr) {92.chr+92.chr}
end
- return Tags.join(tags)
-end
-def getuserid(token)
- if (token =~ /^(.+)\+(.+)$/) then
- user = User.authenticate(:username => $1, :password => $2)
- else
- user = User.authenticate(:token => token)
+ def tag2array(a)
+ tags={}
+ Tags.split(a) do |k, v|
+ tags[k.gsub(':','|')]=v
+ end
+ tags
end
- return user ? user.id : nil;
-end
+ def array2tag(a)
+ tags = []
+ a.each do |k,v|
+ if v=='' then next end
+ if v[0,6]=='(type ' then next end
+ tags << [k.gsub('|',':'), v]
+ end
+ return Tags.join(tags)
+ end
+ def getuserid(token)
+ if (token =~ /^(.+)\+(.+)$/) then
+ user = User.authenticate(:username => $1, :password => $2)
+ else
+ user = User.authenticate(:token => token)
+ end
+ return user ? user.id : nil;
+ end
-# ====================================================================
-# AMF read subroutines
-# ----- 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
+ # ====================================================================
+ # AMF read subroutines
-def getlong(s)
- ((s.getc*256+s.getc)*256+s.getc)*256+s.getc
-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 getstring(s)
- len=s.getc*256+s.getc
- s.read(len)
-end
+ def getint(s)
+ s.getc*256+s.getc
+ end
-def getdouble(s)
- a=s.read(8).unpack('G') # G big-endian, E little-endian
- a[0]
-end
+ def getlong(s)
+ ((s.getc*256+s.getc)*256+s.getc)*256+s.getc
+ end
-def getarray(s)
- len=getlong(s)
- arr=[]
- for i in (0..len-1)
- arr[i]=getvalue(s)
+ def getstring(s)
+ len=s.getc*256+s.getc
+ s.read(len)
end
- arr
-end
-def getobject(s)
- arr={}
- while (key=getstring(s))
- if (key=='') then break end
- arr[key]=getvalue(s)
+ def getdouble(s)
+ a=s.read(8).unpack('G') # G big-endian, E little-endian
+ a[0]
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 getarray(s)
+ len=getlong(s)
+ arr=[]
+ for i in (0..len-1)
+ arr[i]=getvalue(s)
+ end
+ arr
end
-end
-# ====================================================================
-# AMF write subroutines
+ 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
-# ----- putdata envelope data into AMF writeable form
-# ----- encodevalue pack variables as AMF
+ # ----- 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
+ end
-def putdata(index,n)
- d =encodestring(index+"/onResult")
- d+=encodestring("null")
- d+=[-1].pack("N")
- d+=encodevalue(n)
-end
+ # ====================================================================
+ # AMF write subroutines
-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)
+ # ----- 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 / commitdiff