# encoded in the Actionscript Message Format (AMF).
#
# Public domain. Set your tab width to 4 to read this document. :)
- # editions Systeme D / Richard Fairhurst 2004-2007
+ # editions Systeme D / Richard Fairhurst 2004-2008
# to trap errors (getway_old,putway,putpoi,deleteway only):
# return(-1,"message") <-- just puts up a dialogue
private
+
# ====================================================================
# Remote calls
# ----- getpresets
- # return presets,presetmenus and presetnames arrays
+ # in: none
+ # does: reads tag preset menus, colours, and autocomplete config files
+ # out: [0] presets, [1] presetmenus, [2] presetnames,
+ # [3] colours, [4] casing, [5] areas, [6] autotags (all hashes)
def getpresets
RAILS_DEFAULT_LOGGER.info(" Message: getpresets")
presetnames={}; presetnames['point']={}; presetnames['way']={}; presetnames['POI']={}
presettype=''
presetcategory=''
-
# StringIO.open(txt) do |file|
File.open("#{RAILS_ROOT}/config/potlatch/presets.txt") do |file|
file.each_line {|line|
File.open("#{RAILS_ROOT}/config/potlatch/colours.txt") do |file|
file.each_line {|line|
t=line.chomp
- if (t=~/(\w+)\t+([^\t]+)\t+([^\t]+)\t+([^\t]+)/) then
+ 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]=$3.hex end
end
}
end
- [presets,presetmenus,presetnames,colours,casing,areas]
+
+ # Read auto-complete
+ autotags={}; autotags['point']={}; autotags['way']={}; autotags['POI']={};
+ File.open("#{RAILS_ROOT}/config/potlatch/autocomplete.txt") do |file|
+ file.each_line {|line|
+ t=line.chomp
+ if (t=~/^(\w+)\/(\w+)\s+(.+)$/) 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
- # ----- whichways(left,bottom,right,top)
+ # ----- whichways
# 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
+
+ # in: [0] xmin, [1] ymin, [2] xmax, [3] ymax (bbox in degrees)
+ # [4] baselong (longitude of SWF map origin),
+ # [5] basey (projected latitude of SWF map origin),
+ # [6] masterscale (SWF map scale)
+ # does: finds all ways and POI nodes in bounding box
+ # at present, instead of using correct (=more complex) SQL to find
+ # corner-crossing ways, it simply enlarges the bounding box
+ # out: [0] array of way ids,
+ # [1] array of POIs
+ # (where each POI is an array containing:
+ # [0] id, [1] projected long, [2] projected lat, [3] hash of tags)
def whichways(args)
xmin = args[0].to_f-0.01
[ways,points]
end
- # ----- whichways_deleted(left,bottom,right,top)
+ # ----- 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
[ways]
end
- # ----- getway (objectname, way, baselong, basey, masterscale)
- # returns objectname, array of co-ordinates, attributes,
- # xmin,xmax,ymin,ymax
+ # ----- getway
+ # in: [0] SWF object name, [1] way id, [2] baselong, [3] basey,
+ # [4] masterscale
+ # does: gets way and all nodes
+ # out: [0] SWF object name (unchanged),
+ # [1] array of points
+ # (where each point is an array containing
+ # [0] projected long, [1] projected lat, [2] node id,
+ # [3] null, [4] hash of node tags),
+ # [2] xmin, [3] xmax, [4] ymin, [5] ymax (unprojected bbox)
def getway(args)
objname,wayid,baselong,basey,masterscale=args
RAILS_DEFAULT_LOGGER.info(" Message: getway, id=#{wayid}")
- readwayquery(wayid).each {|row|
+ readwayquery(wayid,true).each {|row|
points<<[long2coord(row['longitude'].to_f,baselong,masterscale),lat2coord(row['latitude'].to_f,basey,masterscale),row['id'].to_i,nil,tag2array(row['tags'])]
xmin = [xmin,row['longitude'].to_f].min
xmax = [xmax,row['longitude'].to_f].max
[objname,points,attributes,xmin,xmax,ymin,ymax]
end
- # ----- getway_old (objectname, way, version, baselong, basey, masterscale)
- # returns old version of way
+ # ----- getway_old
+ # returns old version of way
+
+ # in: [0] SWF object name, [1] way id,
+ # [2] way version to get (or -1 for "last deleted version")
+ # [3] baselong, [4] basey, [5] 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})")
[0,objname,points,attributes,xmin,xmax,ymin,ymax,version]
end
- # ----- getway_history (way)
- # returns array of previous versions (version,timestamp,visible,user)
- # should also show 'created_by'
+ # ----- 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, [2] visible 0 or 1,
+ # [3] username or 'anonymous')
def getway_history(wayid)
history=[]
[history]
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
+ # ----- putway
+ # saves a way to the database
+
+ # in: [0] user token, [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")
xc={}; yc={}; tagc={}; vc={}
if originalway>0
way=originalway
- if oldversion==0
- readwayquery(way).each { |row|
- id=row['id'].to_i
+ 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]=1
- }
- else
- readwayquery_old(way,oldversion,true).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
- }
- end
+ 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)")
elsif xc.has_key?(node)
nodelist.push(node)
# old node from original way - update
- if (xs!=xc[node] or (ys/0.0000001).round!=(yc[node]/0.0000001).round or tagstr!=tagc[node] or vc[node]==0)
+ 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
[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, [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
[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
tag2array(poi['tags'])]
end
- # ----- deleteway (user token, way, nodes to keep)
- # returns way ID only
+ # ----- deleteway
+ # delete way and constituent nodes from database
+
+ # in: [0] user token, [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
# ====================================================================
# Support functions for remote calls
-def readwayquery(id)
- ActiveRecord::Base.connection.select_all "SELECT latitude*0.0000001 AS latitude,longitude*0.0000001 AS longitude,current_nodes.id,tags "+
- " FROM current_way_nodes,current_nodes "+
- " WHERE current_way_nodes.id=#{id} "+
- " AND current_way_nodes.node_id=current_nodes.id "+
- " AND current_nodes.visible=1 "+
- " ORDER BY sequence_id"
+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
def getlastversion(id,version)
projects / rails.git / blobdiff