no longer deletes nodes used in other segments ('H' test case)
This commit is contained in:
Richard Fairhurst
parent
4769eec5aa
commit
048f7fca8c
1 changed files with 84 additions and 74 deletions
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@ -195,8 +195,8 @@ EOF
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end
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# ----- getway (objectname, way, baselong, basey, masterscale)
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# returns objectname, array of co-ordinates, attributes,
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# xmin,xmax,ymin,ymax
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# returns objectname, array of co-ordinates, attributes,
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# xmin,xmax,ymin,ymax
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def getway(args)
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objname,wayid,baselong,basey,masterscale=args
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@ -235,6 +235,7 @@ EOF
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uid=getuserid(usertoken)
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return if !uid
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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
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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
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db_now='@now'+uid.to_s+originalway.to_i.abs.to_s+Time.new.to_i.to_s # 'now' variable name, typically 51 chars
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ActiveRecord::Base.connection.execute("SET #{db_now}=NOW()")
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originalway=originalway.to_i
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@ -278,7 +279,7 @@ EOF
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if node<0
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# new node - create
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newnode=ActiveRecord::Base.connection.insert("INSERT INTO current_nodes ( latitude,longitude,timestamp,user_id,visible,tags) VALUES ( #{ys},#{xs},#{db_now},#{uid},1,#{tagsql})")
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ActiveRecord::Base.connection.insert("INSERT INTO nodes (id,latitude,longitude,timestamp,user_id,visible,tags) VALUES (#{newnode},#{ys},#{xs},#{db_now},#{uid},1,#{tagsql})")
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ActiveRecord::Base.connection.insert("INSERT INTO nodes (id,latitude,longitude,timestamp,user_id,visible,tags) VALUES (#{newnode},#{ys},#{xs},#{db_now},#{uid},1,#{tagsql})")
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points[i][2]=newnode
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renumberednodes[node.to_s]=newnode.to_s
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@ -317,7 +318,7 @@ EOF
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end
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end
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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,'')")
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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,'')")
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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,'')")
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points[i+1][5]=segid
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numberedsegments[(i+1).to_s]=segid.to_s
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end
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@ -332,38 +333,6 @@ EOF
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createuniquesegments(way,db_uqs)
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# a=''
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# ActiveRecord::Base.connection.select_values("SELECT segment_id FROM #{db_uqs}").each {|b| a+=b+',' }
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# RAILS_DEFAULT_LOGGER.error("Unique segments are #{a}")
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# a=ActiveRecord::Base.connection.select_value("SELECT #{db_now}")
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# RAILS_DEFAULT_LOGGER.error("Timestamp of this edit is #{a}")
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# RAILS_DEFAULT_LOGGER.error("Userid of this edit is #{uid}")
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# delete nodes from uniquesegments (and not in modified way)
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sql=<<-EOF
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INSERT INTO nodes (id,latitude,longitude,timestamp,user_id,visible)
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SELECT DISTINCT cn.id,cn.latitude,cn.longitude,#{db_now},#{uid},0
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FROM current_nodes AS cn,
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current_segments AS cs,
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#{db_uqs} AS us
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WHERE(cn.id=cs.node_a OR cn.id=cs.node_b)
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AND cs.id=us.segment_id AND cs.visible=1
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AND (cn.timestamp!=#{db_now} OR cn.user_id!=#{uid})
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EOF
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ActiveRecord::Base.connection.insert(sql)
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sql=<<-EOF
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UPDATE current_nodes AS cn,
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current_segments AS cs,
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#{db_uqs} AS us
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SET cn.timestamp=#{db_now},cn.visible=0,cn.user_id=#{uid}
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WHERE (cn.id=cs.node_a OR cn.id=cs.node_b)
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AND cs.id=us.segment_id AND cs.visible=1
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AND (cn.timestamp!=#{db_now} OR cn.user_id!=#{uid})
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EOF
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ActiveRecord::Base.connection.update(sql)
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# delete segments from uniquesegments (and not in modified way)
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sql=<<-EOF
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@ -382,7 +351,28 @@ EOF
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AND (cs.timestamp!=#{db_now} OR cs.user_id!=#{uid})
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EOF
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ActiveRecord::Base.connection.update(sql)
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# delete nodes not in modified way or any other segments
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createuniquenodes(db_uqs,db_uqn)
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sql=<<-EOF
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INSERT INTO nodes (id,latitude,longitude,timestamp,user_id,visible)
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SELECT DISTINCT cn.id,cn.latitude,cn.longitude,#{db_now},#{uid},0
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FROM current_nodes AS cn,#{db_uqn}
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WHERE cn.id=node_id
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EOF
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ActiveRecord::Base.connection.insert(sql)
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sql=<<-EOF
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UPDATE current_nodes AS cn, #{db_uqn}
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SET cn.timestamp=#{db_now},cn.visible=0,cn.user_id=#{uid}
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WHERE cn.id=node_id
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EOF
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ActiveRecord::Base.connection.update(sql)
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ActiveRecord::Base.connection.execute("DROP TABLE #{db_uqs}")
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ActiveRecord::Base.connection.execute("DROP TABLE #{db_uqn}")
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# insert new version of route into way_segments
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@ -428,60 +418,61 @@ EOF
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def deleteway(args)
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usertoken,way=args
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uid=getuserid(usertoken); if !uid then return end
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way=way.to_i
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way=way.to_i
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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
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db_now='@now'+uid.to_s+way.to_i.abs.to_s+Time.new.to_i.to_s # 'now' variable name, typically 51 chars
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ActiveRecord::Base.connection.execute("SET #{db_now}=NOW()")
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createuniquesegments(way,db_uqs)
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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
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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
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db_now='@now'+uid.to_s+way.to_i.abs.to_s+Time.new.to_i.to_s # 'now' variable name, typically 51 chars
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ActiveRecord::Base.connection.execute("SET #{db_now}=NOW()")
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createuniquesegments(way,db_uqs)
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sql=<<-EOF
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INSERT INTO nodes (id,latitude,longitude,timestamp,user_id,visible)
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SELECT DISTINCT cn.id,cn.latitude,cn.longitude,#{db_now},#{uid},0
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FROM current_nodes AS cn,
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current_segments AS cs,
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#{db_uqs} AS us
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WHERE (cn.id=cs.node_a OR cn.id=cs.node_b)
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AND cs.id=us.segment_id
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EOF
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ActiveRecord::Base.connection.insert(sql)
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# - delete any otherwise unused segments
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sql=<<-EOF
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UPDATE current_nodes AS cn,
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current_segments AS cs,
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#{db_uqs} AS us
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SET cn.timestamp=#{db_now},cn.visible=0,cn.user_id=#{uid}
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WHERE (cn.id=cs.node_a OR cn.id=cs.node_b)
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AND cs.id=us.segment_id
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EOF
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ActiveRecord::Base.connection.update(sql)
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# - delete any otherwise unused segments
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sql=<<-EOF
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sql=<<-EOF
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INSERT INTO segments (id,node_a,node_b,timestamp,user_id,visible)
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SELECT DISTINCT segment_id,node_a,node_b,#{db_now},#{uid},0
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FROM current_segments AS cs, #{db_uqs} AS us
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WHERE cs.id=us.segment_id
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EOF
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ActiveRecord::Base.connection.insert(sql)
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ActiveRecord::Base.connection.insert(sql)
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sql=<<-EOF
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sql=<<-EOF
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UPDATE current_segments AS cs, #{db_uqs} AS us
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SET cs.timestamp=#{db_now},cs.visible=0,cs.user_id=#{uid}
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WHERE cs.id=us.segment_id
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EOF
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ActiveRecord::Base.connection.update(sql)
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ActiveRecord::Base.connection.execute("DROP TABLE #{db_uqs}")
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ActiveRecord::Base.connection.update(sql)
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# - delete way
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# - delete any unused nodes
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createuniquenodes(db_uqs,db_uqn)
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ActiveRecord::Base.connection.insert("INSERT INTO ways (id,user_id,timestamp,visible) VALUES (#{way},#{uid},#{db_now},0)")
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ActiveRecord::Base.connection.update("UPDATE current_ways SET user_id=#{uid},timestamp=#{db_now},visible=0 WHERE id=#{way}")
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ActiveRecord::Base.connection.execute("DELETE FROM current_way_segments WHERE id=#{way}")
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ActiveRecord::Base.connection.execute("DELETE FROM current_way_tags WHERE id=#{way}")
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sql=<<-EOF
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INSERT INTO nodes (id,latitude,longitude,timestamp,user_id,visible)
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SELECT DISTINCT cn.id,cn.latitude,cn.longitude,#{db_now},#{uid},0
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FROM current_nodes AS cn,#{db_uqn}
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WHERE cn.id=node_id
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EOF
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ActiveRecord::Base.connection.insert(sql)
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way
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sql=<<-EOF
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UPDATE current_nodes AS cn, #{db_uqn}
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SET cn.timestamp=#{db_now},cn.visible=0,cn.user_id=#{uid}
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WHERE cn.id=node_id
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EOF
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ActiveRecord::Base.connection.update(sql)
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ActiveRecord::Base.connection.execute("DROP TABLE #{db_uqs}")
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ActiveRecord::Base.connection.execute("DROP TABLE #{db_uqn}")
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# - delete way
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ActiveRecord::Base.connection.insert("INSERT INTO ways (id,user_id,timestamp,visible) VALUES (#{way},#{uid},#{db_now},0)")
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ActiveRecord::Base.connection.update("UPDATE current_ways SET user_id=#{uid},timestamp=#{db_now},visible=0 WHERE id=#{way}")
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ActiveRecord::Base.connection.execute("DELETE FROM current_way_segments WHERE id=#{way}")
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ActiveRecord::Base.connection.execute("DELETE FROM current_way_tags WHERE id=#{way}")
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way
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end
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# ====================================================================
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@ -498,6 +489,7 @@ def readwayquery(id)
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end
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def createuniquesegments(way,uqs_name)
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# Finds segments which appear in this way and no other
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sql=<<-EOF
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CREATE TEMPORARY TABLE #{uqs_name}
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SELECT a.segment_id
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@ -511,6 +503,24 @@ def createuniquesegments(way,uqs_name)
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ActiveRecord::Base.connection.execute(sql)
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end
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def createuniquenodes(uqs_name,uqn_name)
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# Finds nodes which appear in uniquesegments but no other segments
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sql=<<-EOF
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CREATE TEMPORARY TABLE #{uqn_name}
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SELECT DISTINCT node_id
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FROM (SELECT cn.id AS node_id
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FROM current_nodes AS cn,
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current_segments AS cs,
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#{uqs_name} AS us
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WHERE cs.id=us.segment_id
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AND (cn.id=cs.node_a OR cn.id=cs.node_b)) AS n
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LEFT JOIN current_segments AS cs2 ON node_id=cs2.node_a AND cs2.visible=1
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LEFT JOIN current_segments AS cs3 ON node_id=cs3.node_b AND cs3.visible=1
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WHERE cs2.node_a IS NULL
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AND cs3.node_b IS NULL
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EOF
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ActiveRecord::Base.connection.execute(sql)
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end
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def sqlescape(a)
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a.gsub("'","''").gsub(92.chr,92.chr+92.chr)
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