Class: Caddie::CrestPriceHistoryUpdate

Inherits:
ActiveRecord::Base
  • Object
show all
Extended by:
CrestDataRetriever
Defined in:
app/models/caddie/crest_price_history_update.rb

Constant Summary collapse

NB_THREADS = 
4

Constants included from CrestDataRetriever

Caddie::CrestDataRetriever::CREST_BASE_URL

Class Method Summary collapse

Methods included from CrestDataRetriever

get_markets

Class Method Details

.feed_price_histories(thread_id = nil) ⇒ Object 



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# File 'app/models/caddie/crest_price_history_update.rb', line 19

def self.feed_price_histories( thread_id = nil )
  total_connections_counts = 0
  total_inserts = 0
  date_deb = Time.now

  dol = daily_operations_list

  # pp dol.to_a
  dol = dol.where( thread_slice_id: thread_id ) if thread_id

  # puts dol.reload.count
  dol.joins( :eve_item, :region ).pluck( :eve_item_id, :region_id, :cpp_eve_item_id, :cpp_region_id ).each do |row|

    # puts "Processing row = #{row}"

    eve_item_id, region_id, cpp_eve_item_id, cpp_region_id = row
    # puts "Requesting : #{cpp_region_id}, #{cpp_eve_item_id}"

    items = []
    connections_count = 0
    begin
      items, connections_count = get_markets( cpp_region_id, cpp_eve_item_id )
    rescue OpenURI::HTTPError => e
      puts e.inspect
    end

    total_connections_counts += connections_count

    ActiveRecord::Base.transaction do

      # TODO : This operation is extremely costly. Keep the last updated timestamp and use it to shorten insert.
      # puts 'About to reject already used lines'
      timestamps = CrestPriceHistory.where( region_id: region_id, eve_item_id: eve_item_id ).pluck( :day_timestamp ).to_set
      items.reject! do |item|
        date_info = DateTime.parse( item['date'] )
        date_info_ts = date_info.strftime( '%Y%m%d' )
        timestamps.include?( date_info_ts )
      end
      # puts 'Lines rejected'

      items.each do |item_data|

        date_info = DateTime.parse( item_data['date'] )
        date_info_ts = date_info.strftime( '%Y%m%d' )

        CrestPriceHistory.create!( region_id: region_id, eve_item_id: eve_item_id, day_timestamp: date_info_ts,
          history_date: date_info,  order_count: item_data['orderCount'], volume: item_data['volume'],
          low_price: item_data['lowPrice'], avg_price: item_data['avgPrice'], high_price: item_data['highPrice'] )
          total_inserts += 1
      end
    end
  end
  [ total_inserts, total_connections_counts, Time.now - date_deb ]
end

.update ⇒ Object 



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# File 'app/models/caddie/crest_price_history_update.rb', line 13

def self.update
  current_path = File.dirname( __FILE__ )
  request = File.open( "#{current_path}/update_table.sql" ).read
  ActiveRecord::Base.connection.execute( request )
end