map-fields

• github.com/internuity/map-fields

DESCRIPTION:

A Rails plugin which provides a hook to preview and map the fields of an uploaded CSV file to a pre-defined schema

FEATURES/PROBLEMS:

• Captures the post and provides an intermediate view where a user can map their data to the expected schema

• Provides a default mapping view that can be customised

• Allows the import to be part of a larger form (The form fields are remembered through the mapping)

SYNOPSIS:

===Lists controller
  class ListsController < AppliactionController
    map_fields :create, ['Title', 'First name', 'Last name'], :file_field => :file, :params => [:list]

    def index
      @lists = List.find(:all)
    end

    def new
      @list = List.new
    end

    def create
      @list = List.new(params[:list])
      if fields_mapped?
        mapped_fields.each do |row|
          @list.contact.create(:title => row[0], 
                               :first_name => row[1], 
                               :last_name => row[2])
        end
        flash[:notice] = 'Contact list created'
        redirect_to :action => :index
      else
        render
      end
    rescue MapFields::InconsistentStateError
      flash[:error] = 'Please try again'
      redirect_to :action => :new
    rescue MapFields::MissingFileContentsError
      flash[:error] = 'Please upload a file'
      redirect_to :action => :new
    end
  end

===New view (new.html.erb)
  <h1>Import a new List</h1>
  <% form_for :list, :html => {:multipart => true} do |form| %>
    <div class="field">
      <%= form.label :name %>
      <%= form.text_field :name %>
    </div>
    <div class="field">
      <label for="file">File</label>
      <%= file_field_tag 'file' %>
    </div>
    <div class="buttons">
      <%= form.submit 'Import' %>
    </div>
  <% end %>

===Create view (create.html.erb)
  <h1>Import a new List</h1>
  <p>Please map the details you're importing</p>
  =render :partial => 'map_fields/map_fields'

REQUIREMENTS:

• FasterCSV

INSTALL:

sudo gem install map-fields

or

./script/plugin install git://github.com/internuity/map-fields.git

LICENSE:

(The MIT License)

Copyright © 2009

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.