- }
- 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
-
- def whichways(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]
-
- RAILS_DEFAULT_LOGGER.info(" Message: whichways, bbox=#{xmin},#{ymin},#{xmax},#{ymax}")
-
- waylist = ActiveRecord::Base.connection.select_all("SELECT DISTINCT current_way_nodes.id AS wayid"+
- " FROM current_way_nodes,current_nodes,current_ways "+
- " WHERE current_nodes.id=current_way_nodes.node_id "+
- " AND current_nodes.visible=1 "+
- " AND current_ways.id=current_way_nodes.id "+
- " AND current_ways.visible=1 "+
- " AND "+OSM.sql_for_area(ymin, xmin, ymax, xmax, "current_nodes."))
-
- ways = waylist.collect {|a| a['wayid'].to_i } # get an array of way IDs
-
- 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_way_nodes cwn ON cwn.node_id=current_nodes.id "+
- " WHERE "+OSM.sql_for_area(ymin, xmin, ymax, xmax, "current_nodes.")+
- " AND cwn.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]
- end
-
- # ----- whichways_deleted(left,bottom,right,top)
- # return array of deleted ways in current bounding box
-
- 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]
-
- 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
-
- def getway(args)
- objname,wayid,baselong,basey,masterscale=args
- wayid = wayid.to_i
- points = []
- xmin = ymin = 999999
- xmax = ymax = -999999
-
- RAILS_DEFAULT_LOGGER.info(" Message: getway, id=#{wayid}")
-
- readwayquery(wayid).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
- ymin = [ymin,row['latitude'].to_f].min
- ymax = [ymax,row['latitude'].to_f].max
- }
-
- attributes={}
- attrlist=ActiveRecord::Base.connection.select_all "SELECT k,v FROM current_way_tags WHERE id=#{wayid}"
- attrlist.each {|a| attributes[a['k'].gsub(':','|')]=a['v'] }
-
- [objname,points,attributes,xmin,xmax,ymin,ymax]
- end
-
- # ----- getway_old (objectname, way, version, baselong, basey, masterscale)
- # returns old version of way
-
- def getway_old(args)
- RAILS_DEFAULT_LOGGER.info(" Message: getway_old (server is #{SERVER_URL})")
- return if SERVER_URL=='www.openstreetmap.org'
-
- 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<<[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 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,version]
- end
-
- # ----- getway_history (way)
- # returns array of previous versions (version,timestamp,visible,user)
- # should also show 'created_by'
-
- def getway_history(wayid)
- history=[]
- sql=<<-EOF
- SELECT version,timestamp,visible,display_name,data_public
- FROM ways,users
- WHERE ways.id=#{wayid}
- AND ways.user_id=users.id
- ORDER BY version DESC
- EOF
- histlist=ActiveRecord::Base.connection.select_all(sql)
- histlist.each { |row|
- if row['data_public'] then user=row['display_name'] else user='anonymous' end
- history<<[row['version'],row['timestamp'],row['visible'],user]
- }
- [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
-
- # ** needs to be updated so that nodes with visible=0 (i.e. undeleted)
- # no longer cause a problem
- # best way to do this would be to know which version it was recovered from;
- # then replace readwayquery with historic query. Line 506 would also need
- # to check if visible had changed, and update if so
- # (a side-effect is that merging/splitting ways will need to be forbidden
- # for undeleted ways, I think)
-
- def putway(args)
- RAILS_DEFAULT_LOGGER.info(" putway started")
- usertoken,originalway,points,attributes,oldversion,baselong,basey,masterscale=args
- uid=getuserid(usertoken)
- return if !uid
- RAILS_DEFAULT_LOGGER.info(" putway authenticated happily")
- 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
- ActiveRecord::Base.connection.execute("SET #{db_now}=NOW()")
- originalway=originalway.to_i
- oldversion=oldversion.to_i
-
- RAILS_DEFAULT_LOGGER.info(" Message: putway, id=#{originalway}")
-
- # -- 3. read original way into memory
-
- xc={}; yc={}; tagc={}; vc={}
- if originalway>0
- way=originalway
- if oldversion==0
- readwayquery(way).each { |row|
- id=row['id'].to_i
- 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
- 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)")
- end
projects / rails.git / blobdiff