Question

I have a rails app with some nested data that I’d like to export as a CSV file

The models look like:

class ContainerRecord < ActiveRecord::Base
  has_many      :child_records 

and

class ChildRecord < ActiveRecord::Base
  belongs_to :container_record

I’d like to be able to export a CSV file with each ContainerRecord on a row with its information in the first few columns and a value from each ChildRecord in the remaining columns.

I can’t guarantee the number of ChildRecords associated with each ContainerRecord and I don’t care if I have a different number of non-null columns for each row.

I’ve attempted to use FasterCSV, but I get all of the data for the child records shoved into one column rather than a column for each.

Is this something that I can do with FasterCSV? If not, what method can I use to accomplish my goal?

Answer 1

I ended up finding a nice tutorial on csv_builder that let me do exactly what I wanted to do with minimal effort and allowed me to stick a little more closely to the MVC architecture.