+ sql=<<-EOF
+ UPDATE current_nodes AS cn, #{db_uqn}
+ SET cn.timestamp=#{db_now},cn.visible=0,cn.user_id=#{uid}
+ 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}")
+
+ # 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
+ if insertsql !='' then insertsql +=',' end
+ if currentsql!='' then currentsql+=',' end
+ insertsql +="(#{way},#{points[i+1][5]},#{version})"
+ currentsql+="(#{way},#{points[i+1][5]},#{sequence})"
+ sequence +=1
+ end
+
+ ActiveRecord::Base.connection.execute("DELETE FROM current_way_nodes WHERE id=#{way}");
+ ActiveRecord::Base.connection.insert("INSERT INTO way_nodes (id,segment_id,version ) VALUES #{insertsql}");
+ ActiveRecord::Base.connection.insert("INSERT INTO current_way_nodes (id,segment_id,sequence_id) VALUES #{currentsql}");
+
+ # -- 7. insert new way tags
+
+ insertsql =''
+ currentsql=''
+ attributes.each do |k,v|
+ if v=='' or v.nil? then next end
+ 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)+"')"
+ 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]
+ end
+
+ # ----- deleteway (user token, way)
+ # returns way ID only
+
+ def deleteway(args)
+ usertoken,way=args
+
+ RAILS_DEFAULT_LOGGER.info(" Message: deleteway, id=#{way}")
+
+ 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
+ ActiveRecord::Base.connection.execute("SET #{db_now}=NOW()")
+ createuniquesegments(way,db_uqs,'')
+
+ # - delete any otherwise unused segments
+
+ 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)
+
+ # - delete any unused nodes
+
+ createuniquenodes(db_uqs,db_uqn)
+
+ sql=<<-EOF
+ INSERT INTO nodes (id,latitude,longitude,timestamp,user_id,visible)
+ SELECT DISTINCT cn.id,cn.latitude,cn.longitude,#{db_now},#{uid},0
+ FROM current_nodes AS cn,#{db_uqn}
+ WHERE cn.id=node_id
+ EOF
+ ActiveRecord::Base.connection.insert(sql)
+
+ sql=<<-EOF
+ UPDATE current_nodes AS cn, #{db_uqn}
+ SET cn.timestamp=#{db_now},cn.visible=0,cn.user_id=#{uid}
+ WHERE cn.id=node_id
+ EOF
+ ActiveRecord::Base.connection.update(sql)
projects / rails.git / blobdiff