$ make
+The above command should work for linux and most other Unix systems
+that use ELF shared objects. For MacOS X you will need to do:
+
+$ make libquadtile.dylib
+
Make sure the db/functions directory is on the MySQL server's library
path and restart the MySQL server. On linux the easiest way to do this
is to create /etc/ld.so.conf.d/osm.conf and place the path to the
> create function tile_for_point returns integer soname 'libquadtile.so';
> exit
+or, for MacOS X:
+
+> create function tile_for_point returns integer soname 'libquadtile.dylib';
+> exit
+
Creating database skeleton tables
===================================
add_index "gps_points", ["tile"], :name => "points_tile_idx"
remove_index "gps_points", :name => "points_idx"
- Tracepoint.update_all("latitude = latitude * 10, longitude = longitude * 10, tile = tile_for_point(latitude * 10, longitude * 10)")
+ begin
+ Tracepoint.update_all("latitude = latitude * 10, longitude = longitude * 10, tile = tile_for_point(latitude * 10, longitude * 10)")
+ rescue ActiveRecord::StatementInvalid => ex
+ Tracepoint.find(:all).each do |tp|
+ tp.latitude = tp.latitude * 10
+ tp.longitude = tp.longitude * 10
+ tp.save!
+ end
+ end
end
def self.down
+ Tracepoint.update_all("latitude = latitude / 10, longitude = longitude / 10")
+
add_index "gps_points", ["latitude", "longitude"], :name => "points_idx"
remove_index "gps_points", :name => "points_tile_idx"
remove_column "gps_points", "tile"
class TileNodes < ActiveRecord::Migration
- def self.upgrade_table(from_table, to_table)
- execute <<-END_SQL
- INSERT INTO #{to_table} (id, latitude, longitude, user_id, visible, tags, timestamp, tile)
- SELECT id, ROUND(latitude * 10000000), ROUND(longitude * 10000000),
- user_id, visible, tags, timestamp,
- tile_for_point(CAST(ROUND(latitude * 10000000) AS UNSIGNED),
- CAST(ROUND(longitude * 10000000) AS UNSIGNED))
- FROM #{from_table}
- END_SQL
+ def self.upgrade_table(from_table, to_table, model)
+ begin
+ execute <<-END_SQL
+ INSERT INTO #{to_table} (id, latitude, longitude, user_id, visible, tags, timestamp, tile)
+ SELECT id, ROUND(latitude * 10000000), ROUND(longitude * 10000000),
+ user_id, visible, tags, timestamp,
+ tile_for_point(CAST(ROUND(latitude * 10000000) AS UNSIGNED),
+ CAST(ROUND(longitude * 10000000) AS UNSIGNED))
+ FROM #{from_table}
+ END_SQL
+ rescue ActiveRecord::StatementInvalid => ex
+ execute <<-END_SQL
+ INSERT INTO #{to_table} (id, latitude, longitude, user_id, visible, tags, timestamp, tile)
+ SELECT id, ROUND(latitude * 10000000), ROUND(longitude * 10000000),
+ user_id, visible, tags, timestamp, 0
+ FROM #{from_table}
+ END_SQL
+
+ model.find(:all).each do |n|
+ n.save!
+ end
+ end
end
def self.downgrade_table(from_table, to_table)
change_column "current_nodes", "id", :bigint, :limit => 64, :null => false, :options => "AUTO_INCREMENT"
change_column "current_nodes", "tile", :integer, :null => false, :unsigned => true
- upgrade_table "current_nodes_v5", "current_nodes"
-
+ upgrade_table "current_nodes_v5", "current_nodes", Node
+
drop_table "current_nodes_v5"
rename_table "nodes", "nodes_v5"
change_column "nodes", "tile", :integer, :null => false, :unsigned => true
- upgrade_table "nodes_v5", "nodes"
+ upgrade_table "nodes_v5", "nodes", OldNode
drop_table "nodes_v5"
end