Class: DataMiner::Run

Inherits:
ActiveRecord::Base
  • Object
show all
Includes:
AASM
Defined in:
lib/data_miner/run.rb,
lib/data_miner/run/column_statistic.rb

Overview

A record of what happened when you ran a data miner script.

To create the table, use DataMiner::Run.auto_upgrade!, possibly in db/seeds.rb or a database migration.

Defined Under Namespace

Classes: ColumnStatistic, Skip

Constant Summary collapse

INITIAL_STATE = 
:limbo

Class Method Summary collapse

Instance Method Summary collapse

Class Method Details

.clear_locks(model_names = DataMiner.model_names) ⇒ nil

Note:

Starting in 2.1.0, runs are no longer locked by default. This method remains in case you want to re-apply locking.

If a previous run died and you have manually enabled locking, you may find yourself getting LockMethod::Locked exceptions.

Examples:

Re-enable locking (since it was turned off by default in 2.1.0)

require 'data_miner'
require 'lock_method'
DataMiner::Run.lock_method :start

Parameters:

  • model_names (String) (defaults to: DataMiner.model_names) —

    What locks to clear.

Returns:

  • (nil) 


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# File 'lib/data_miner/run.rb', line 24

def clear_locks(model_names = DataMiner.model_names)
  return unless defined?(::LockMethod)
  model_names.each do |model_name|
    dummy = new
    dummy.model_name = model_name
    dummy.lock_method_clear :start
  end
  nil
end

Instance Method Details

#final_column_statistics(column_name) ⇒ ColumnStatistic

Get the column statistics for a particular column after this run finished.

Parameters:

  • column_name (String) —

    The column you want to know about.

Returns:



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# File 'lib/data_miner/run.rb', line 128

def final_column_statistics(column_name)
  column_statistics.where(:column_name => column_name.to_s).last
end

#initial_column_statistics(column_name) ⇒ ColumnStatistic

Get the column statistics for a particular column before this run started.

Parameters:

  • column_name (String) —

    The column you want to know about.

Returns:



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# File 'lib/data_miner/run.rb', line 119

def initial_column_statistics(column_name)
  column_statistics.where(:column_name => column_name.to_s).first
end