Offered wrap it in your gem.
For example, you can add an option to update the model for the column in which the values ​​are unique, and the parameter to check for the existence of pass through getter method in class import.

class EmployeeImporter < ActiveImporter::Base
imports Employee

column 'First name', :first_name
column 'Last name', :last_name
column 'Department', :department do |department_name|
Department.find_by(name: department_name)
end

transfer params to block check_update

check_update 'First name'
end

in the file ' active_importer / lib / active_importer / base.rb'

def check_update(check_column = false)
if check_column
# start find model by unique column
# if model exists, then start update_attributes
end
end
if you tell me how to write an update attributes, I wrap everything and do commit

from active_importer.

I try like this code, but it is not best way, can you help write best?

on :row_processing do
p = Product.find_by_handle(row['handle'])
attrs = {}
attrs = { handle: row['handle'], title: row['title'], ............. next params ........... }
unless p.nil?
p.update_attributes attrs
skip_rows_if { true }
end
end

This code work, but this is bullshit :(

from active_importer.

sorry, i find answer in wiki :)
https://github.com/continuum/active_importer/wiki/Update-instead-of-create

from active_importer.