README

DESCRIPTION:

CsvMapper is a small library intended to simplify the common steps involved with importing CSV files to a usable form in Ruby. CsvMapper is compatible with recent 1.8 versions of Ruby as well as Ruby 1.9+

EXAMPLES:

The following example will import a CSV file to an Array of OpenStruct instances.

Example CSV File Structure

First Name,Last Name,Age
John,Doe,27
Jane,Doe,26
Bat,Man,52
...etc...

Simple Usage Example

include CsvMapper

results = import('/path/to/file.csv') do
  start_at_row 1
  [first_name, last_name, age]
end

results.first.first_name  # John
results.first.last_name   # Doe
results.first.age         # 27

Automagical Attribute Discovery Example

include CsvMapper

results = import('/path/to/file.csv') do
  read_attributes_from_file
end

results.first.first_name  # John
results.first.last_name   # Doe
results.first.age         # 27

Import to ActiveRecord Example

Although CsvMapper has no dependency on ActiveRecord; it’s easy to import a CSV file to ActiveRecord models and save them.

# Define an ActiveRecord model
class Person < ActiveRecord::Base; end

include CsvMapper

results = import('/path/to/file.csv') do
  map_to Person # Map to the Person ActiveRecord class (defined above) instead of the default OpenStruct.
  after_row lambda{|row, person| person.save }  # Call this lambda and save each record after it's parsed.


  start_at_row 1
  [first_name, last_name, age]
end

See CsvMapper for a more detailed description

REQUIREMENTS:

FasterCSV on pre 1.9 versions of Ruby

INSTALL:

  • sudo gem install csv-mapper

LICENSE:

(The MIT License)

Copyright © 2008 Luke Pillow

Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the ‘Software’), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:

The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.

THE SOFTWARE IS PROVIDED ‘AS IS’, WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.