Class: ETL::Control::ModelSource

Inherits:
Source show all
Defined in:
lib/etl/control/source/model_source.rb

Overview

:nodoc:

Instance Attribute Summary

Attributes inherited from Source

#configuration, #control, #definition, #local_base, #store_locally

Instance Method Summary collapse

Methods inherited from Source

class_for_name, #errors, #initialize, #last_local_file, #last_local_file_trigger, #local_directory, #local_file, #local_file_trigger, #read_locally, #timestamp

Constructor Details

This class inherits a constructor from ETL::Control::Source

Instance Method Details

#columns ⇒ Object 



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# File 'lib/etl/control/source/model_source.rb', line 8

def columns
  case definition
  when Array
    definition.collect(&:to_sym)
  when Hash
    definition.keys.collect(&:to_sym)
  else
    raise "Definition must be either an Array or a Hash"
  end
end

#each(&block) ⇒ Object 



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# File 'lib/etl/control/source/model_source.rb', line 27

def each(&block)
    railsmodel.to_s.camelize.constantize.find(:all,:order=>order).each do |row|
      result_row = ETL::Row.new
      result_row.source = self
      columns.each do |column|
        result_row[column.to_sym] = row.send(column)
      end
      yield result_row
  end
end

#order ⇒ Object 



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# File 'lib/etl/control/source/model_source.rb', line 23

def order
  configuration[:order] || "id"
end

#railsmodel ⇒ Object 



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# File 'lib/etl/control/source/model_source.rb', line 19

def railsmodel
  configuration[:model]
end