#7 - Fixing rake shards:test:purge to run in test shards

lib/tasks/rails-sharding.rake

@@ -281,10 +281,17 @@ shards_namespace = namespace :shards do
  should_reconnect = Rails::Sharding::ConnectionHandler.connection_pool(shard_group, shard).active_connection?
  Rails::Sharding::ConnectionHandler.establish_connection(shard_group, shard, 'test')
 
+ # saves the current RAILS_ENV (we must change it so the environment is set correcly on the metadata table)
+ initial_rails_env = Rails.env
+ Rails.env = 'test'
+
  Rails::Sharding.using_shard(shard_group, shard) do
  ActiveRecord::Tasks::DatabaseTasks.purge(configuration)
  end
  ensure
+ # restores rails env
+ Rails.env = initial_rails_env
+
  if should_reconnect
  # reestablishes connection for RAILS_ENV environment (whatever that is)
  Rails::Sharding::ConnectionHandler.establish_connection(shard_group, shard)