132 lines
4.8 KiB
Ruby
132 lines
4.8 KiB
Ruby
class TileNodes < ActiveRecord::Migration[4.2]
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class Node < ApplicationRecord
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self.table_name = "current_nodes"
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end
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class OldNode < ApplicationRecord
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self.table_name = "nodes"
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end
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def self.upgrade_table(from_table, to_table, model)
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if ENV["USE_DB_FUNCTIONS"]
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execute <<-SQL.squish
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INSERT INTO #{to_table} (id, latitude, longitude, user_id, visible, tags, timestamp, tile)
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SELECT id, ROUND(latitude * 10000000), ROUND(longitude * 10000000),
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user_id, visible, tags, timestamp,
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tile_for_point(CAST(ROUND(latitude * 10000000) AS INTEGER),
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CAST(ROUND(longitude * 10000000) AS INTEGER))
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FROM #{from_table}
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SQL
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else
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execute <<-SQL.squish
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INSERT INTO #{to_table} (id, latitude, longitude, user_id, visible, tags, timestamp, tile)
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SELECT id, ROUND(latitude * 10000000), ROUND(longitude * 10000000),
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user_id, visible, tags, timestamp, 0
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FROM #{from_table}
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SQL
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model.all.each(&:save!)
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end
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end
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def self.downgrade_table(from_table, to_table)
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execute <<-SQL.squish
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INSERT INTO #{to_table} (id, latitude, longitude, user_id, visible, tags, timestamp)
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SELECT id, latitude / 10000000, longitude / 10000000,
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user_id, visible, tags, timestamp
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FROM #{from_table}
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SQL
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end
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def self.up
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remove_index "current_nodes", :name => "current_nodes_timestamp_idx"
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rename_table "current_nodes", "current_nodes_v5"
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create_table "current_nodes", :id => false do |t|
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t.column "id", :bigserial, :primary_key => true, :null => false
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t.column "latitude", :integer, :null => false
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t.column "longitude", :integer, :null => false
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t.column "user_id", :bigint, :null => false
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t.column "visible", :boolean, :null => false
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t.column "tags", :text, :default => "", :null => false
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t.column "timestamp", :datetime, :null => false
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t.column "tile", :integer, :null => false
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end
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add_index "current_nodes", ["timestamp"], :name => "current_nodes_timestamp_idx"
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add_index "current_nodes", ["tile"], :name => "current_nodes_tile_idx"
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change_column "current_nodes", "tile", :bigint
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upgrade_table "current_nodes_v5", "current_nodes", Node
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drop_table "current_nodes_v5"
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remove_index "nodes", :name => "nodes_uid_idx"
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remove_index "nodes", :name => "nodes_timestamp_idx"
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rename_table "nodes", "nodes_v5"
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create_table "nodes", :id => false do |t|
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t.column "id", :bigint, :null => false
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t.column "latitude", :integer, :null => false
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t.column "longitude", :integer, :null => false
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t.column "user_id", :bigint, :null => false
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t.column "visible", :boolean, :null => false
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t.column "tags", :text, :default => "", :null => false
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t.column "timestamp", :datetime, :null => false
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t.column "tile", :integer, :null => false
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end
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add_index "nodes", ["id"], :name => "nodes_uid_idx"
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add_index "nodes", ["timestamp"], :name => "nodes_timestamp_idx"
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add_index "nodes", ["tile"], :name => "nodes_tile_idx"
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change_column "nodes", "tile", :bigint
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upgrade_table "nodes_v5", "nodes", OldNode
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drop_table "nodes_v5"
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end
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def self.down
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rename_table "current_nodes", "current_nodes_v6"
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create_table "current_nodes", :id => false do |t|
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t.column "id", :bigserial, :primary_key => true, :null => false
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t.column "latitude", :float, :limit => 53, :null => false
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t.column "longitude", :float, :limit => 53, :null => false
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t.column "user_id", :bigint, :null => false
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t.column "visible", :boolean, :null => false
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t.column "tags", :text, :default => "", :null => false
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t.column "timestamp", :datetime, :null => false
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end
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add_index "current_nodes", %w[latitude longitude], :name => "current_nodes_lat_lon_idx"
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add_index "current_nodes", ["timestamp"], :name => "current_nodes_timestamp_idx"
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downgrade_table "current_nodes_v6", "current_nodes"
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drop_table "current_nodes_v6"
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rename_table "nodes", "nodes_v6"
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create_table "nodes", :id => false do |t|
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t.column "id", :bigint, :null => false
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t.column "latitude", :float, :limit => 53, :null => false
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t.column "longitude", :float, :limit => 53, :null => false
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t.column "user_id", :bigint, :null => false
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t.column "visible", :boolean, :null => false
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t.column "tags", :text, :default => "", :null => false
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t.column "timestamp", :datetime, :null => false
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end
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add_index "nodes", ["id"], :name => "nodes_uid_idx"
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add_index "nodes", %w[latitude longitude], :name => "nodes_latlon_idx"
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add_index "nodes", ["timestamp"], :name => "nodes_timestamp_idx"
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downgrade_table "nodes_v6", "nodes"
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drop_table "nodes_v6"
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end
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end
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