gistfile1.rb

    108:       conditions[dsa.column_name.to_sym] = [value]
    109:     end
    110: 
    111:     record_count = staging_table_active_record.count(:conditions => conditions)
    112: 
 => 113:     binding.pry
    114:     record_count > 0
    115:   end
    116: 
    117:   def staging_table_active_record
    118:     @staging_table_active_record ||= @upload_attempt.dataset.active_record_class

[1] pry> conditions
=> {:id=>[nil], :murder_date=>["1986-10-31"]}
[2] pry> staging_table_active_record.count(:conditions => conditions)
=> 0
[3] pry> staging_table_active_record.find_all_by_murder_date('1986-10-31')
=> [#<OfficeMurderPool2002 audit_id: 0, id: 1, murder_date: "1986-10-31", murderer: "Alice", murderee: "Bob">,
 #<OfficeMurderPool2002 audit_id: 0, id: nil, murder_date: "1986-10-31", murderer: "Alice", murderee: "Fred">]
[4] pry>