Upgrade to latest Rails 4 release

.gitignore

@@ -4,5 +4,6 @@ log/*.log
 pkg/
 *.gem
 Gemfile.lock
+spec/gemfiles/*.lock
 .ruby-version
 .ruby-gemset

.travis.yml

@@ -1,8 +1,14 @@
 language: ruby
+cache: bundler
+bundler_args: --path ../../vendor/bundle
 rvm:
-  - 2.0.0
+  - 2.2.2
   - 1.9.3
-  - jruby-head
-
-
-script: bundle exec rake spec
+  - jruby
+gemfile:
+  - spec/gemfiles/Gemfile.rails-3.2
+  - spec/gemfiles/Gemfile.rails-4.0
+  - spec/gemfiles/Gemfile.rails-4.1
+  - spec/gemfiles/Gemfile.rails-4.2
+  - Gemfile
+script: bundle exec rspec

README.md

@@ -0,0 +1,149 @@
+# to_spreadsheet [![Build Status](https://secure.travis-ci.org/glebm/to_spreadsheet.png?branch=master)](http://travis-ci.org/glebm/to_spreadsheet)
+
+to_spreadsheet lets your Rails 3+ app render Excel files using the existing slim/haml/erb/etc views.
+
+Installation
+------------
+
+Add it to your Gemfile:
+```ruby
+gem 'to_spreadsheet'
+```
+
+Usage
+-----
+
+In the controller:
+```ruby
+# my_thingies_controller.rb
+class MyThingiesController < ApplicationController
+  respond_to :xls, :html
+  def index
+    @my_items = MyItem.all
+    respond_to do |format|
+      format.html
+      format.xlsx { render xlsx: :index, filename: "my_items_doc" }
+    end
+  end
+end
+```
+
+In the view partial:
+```haml
+# _my_items.haml
+%table
+  %caption My items
+  %thead
+    %tr
+      %td ID
+      %td Name
+  %tbody
+    - my_items.each do |my_item|
+      %tr
+        %td.number= my_item.id
+        %td= my_item.name
+  %tfoot
+    %tr
+      %td(colspan="2") #{my_items.length}
+```
+
+In the XLSX view:
+```haml
+# index.xls.haml
+= render 'my_items', my_items: @my_items
+```
+
+In the HTML view:
+```haml
+# index.html.haml
+= link_to 'Download spreadsheet', my_items_url(format: :xlsx)
+= render 'my_items', my_items: @my_items
+```
+
+### Worksheets
+
+Every table in the view will be converted to a separate sheet.
+The sheet title will be assigned to the value of the table’s caption element if it exists.
+
+### Formatting
+
+You can define formats in your view file (local to the view) or in the initializer
+
+```ruby
+format_xls 'table.my-table' do
+  workbook use_autowidth: true
+  sheet    orientation: landscape
+  format 'th', b: true # bold
+  format 'tbody tr', bg_color: lambda { |row| 'ddffdd' if row.index.odd? }
+  format 'A3:B10', i: true # italic
+  format column: 0, width: 35
+  format 'td.custom', lambda { |cell| modify cell somehow.}
+  # default value (fallback value when value is blank or 0 for integer / float)
+  default 'td.price', 10
+end
+```
+
+For the full list of supported properties head here: http://rubydoc.info/github/randym/axlsx/Axlsx/Styles#add_style-instance_method
+In addition, for column formats, Axlsx columnInfo properties are also supported
+
+### Advanced formatting
+
+to_spreadsheet [associates](https://github.com/glebm/to_spreadsheet/blob/master/lib/to_spreadsheet/renderer.rb#L33) HTML nodes with Axlsx objects as follows:
+
+| HTML tag | Axlsx object |
+|----------|--------------|
+| table    | worksheet    |
+| tr       | row          |
+| td, th   | cell         |
+
+For example, to directly manipulate a worksheet:
+```ruby
+format_xls do
+  format 'table' do |worksheet|
+    worksheet.add_chart ...
+    # to get the associated Nokogiri node:
+    el = context.to_xml_node(worksheet)
+  end
+end
+```
+
+### Themes
+
+You can define themes, i.e. blocks of formatting code:
+```ruby
+ToSpreadsheet.theme :zebra do
+  format 'tr', bg_color: lambda { |row| 'ddffdd' if row.index.odd? }
+end
+```
+
+And then use them:
+```ruby
+format_xls 'table.zebra', ToSpreadsheet.theme(:zebra)
+```
+
+### Using along side axlsx-rails
+If you are using [axlsx-rails](https://github.com/straydogstudio/axlsx_rails), :xlsx renderer might have already been defined. In that case define a custome renderer using
+```ruby
+# app/config/application.rb
+config.to_spreadsheet.renderer = :html2xlsx
+```
+
+And then in controller
+```ruby
+respond_to do |format|
+  format.html2xlsx
+end
+```
+
+### Types
+
+The default theme uses class names on td/th to cast values.
+Here is the list of class to type mapping:
+
+| CSS class        | Format                   |
+|------------------|--------------------------|
+| decimal or float | Decimal                  |
+| num or int       | Integer                  |
+| datetime         | DateTime (Chronic.parse) |
+| date             | Date (Date.parse)        |
+| time             | Time (Chronic.parse)     |

Rakefile

@@ -21,3 +21,12 @@ task :write_test_xlsx => :env do
   ToSpreadsheet::Renderer.to_package(html).serialize(path)
   puts "Written to #{path}"
 end
+
+desc "Test all rails versions"
+task :test_all_rails do
+  Dir.glob("./spec/gemfiles/*{[!.lock]}").each do |gemfile|
+    puts "TESTING WITH #{gemfile}"
+    system "BUNDLE_GEMFILE=#{gemfile} bundle | grep Installing"
+    system "BUNDLE_GEMFILE=#{gemfile} bundle exec rspec"
+  end
+end

lib/to_spreadsheet.rb

@@ -1,10 +1,13 @@
 require 'to_spreadsheet/version'
 require 'to_spreadsheet/context'
 require 'to_spreadsheet/renderer'
-require 'to_spreadsheet/railtie' if defined?(Rails)
 
 module ToSpreadsheet
   class << self
+    def renderer
+      @renderer ||= :xlsx
+    end
+
     def theme(name, &formats)
       @themes ||= {}
       if formats
@@ -16,5 +19,6 @@ def theme(name, &formats)
   end
 end
 
+require 'to_spreadsheet/railtie' if defined?(Rails)
 require 'to_spreadsheet/themes/default'
 ToSpreadsheet::Context.global.format_xls ToSpreadsheet.theme(:default)

lib/to_spreadsheet/rails/action_pack_renderers.rb

@@ -1,10 +1,20 @@
 require 'active_support'
 require 'action_controller/metal/renderers'
-require 'action_controller/metal/responder'
+
+# in rails 3.2  it's ActiveSupport::VERSION
+# in rails 4.0+ it's ActiveSupport.version (instance of Gem::Version)
+if ActiveSupport.respond_to?(:version) && ActiveSupport.version.to_s >= "4.2.0"
+  # For rails 4.2
+  require 'action_controller/responder'
+else
+  # For rails 3.2 - rails 4.1
+  require 'action_controller/metal/responder'
+end
+
 
 # This will let us do thing like `render :xlsx => 'index'`
 # This is similar to how Rails internally implements its :json and :xml renderers
-ActionController::Renderers.add :xlsx do |template, options|
+ActionController::Renderers.add ToSpreadsheet.renderer do |template, options|
   filename = options[:filename] || options[:template] || 'data'
   xlsx_options = options.merge(layout: false, formats: [:xlsx, :html])
   data = ToSpreadsheet::Context.with_context ToSpreadsheet::Context.global.merge(ToSpreadsheet::Context.new) do |context|
@@ -15,15 +25,15 @@
     end
     ToSpreadsheet::Renderer.to_data(html, context)
   end
-  send_data data, type: :xlsx, disposition: %(attachment; filename="#{filename}.xlsx")
+  send_data data, type: ToSpreadsheet.renderer, disposition: %(attachment; filename="#{filename}.xlsx")
 end
 
 class ActionController::Responder
   # This sets up a default render call for when you do
   # respond_to do |format|
   #   format.xlsx
   # end
-  def to_xlsx
-    controller.render xlsx: controller.action_name
+  define_method "to_#{ToSpreadsheet.renderer}" do
+    controller.render ToSpreadsheet.renderer => controller.action_name
   end
 end

lib/to_spreadsheet/rails/mime_types.rb

@@ -1,2 +1,2 @@
 require 'action_dispatch/http/mime_type'
-Mime::Type.register "application/vnd.openxmlformats-officedocument.spreadsheetml.sheet", :xlsx unless Mime::Type.lookup_by_extension(:xlsx)
+Mime::Type.register "application/vnd.openxmlformats-officedocument.spreadsheetml.sheet", ToSpreadsheet.renderer unless Mime::Type.lookup_by_extension(ToSpreadsheet.renderer)

lib/to_spreadsheet/railtie.rb

@@ -1,10 +1,15 @@
 require 'rails/railtie'
-require 'to_spreadsheet/rails/mime_types'
-require 'to_spreadsheet/rails/action_pack_renderers'
-require 'to_spreadsheet/rails/view_helpers'
 module ToSpreadsheet
   class Railtie < ::Rails::Railtie
-    initializer "to_spreadsheet.view_helpers" do
+    config.to_spreadsheet = ActiveSupport::OrderedOptions.new
+    config.to_spreadsheet.renderer = ToSpreadsheet.renderer
+
+    config.after_initialize do |app|
+      ToSpreadsheet.instance_variable_set("@renderer", app.config.to_spreadsheet.renderer)
+
+      require 'to_spreadsheet/rails/action_pack_renderers'
+      require 'to_spreadsheet/rails/view_helpers'
+      require 'to_spreadsheet/rails/mime_types'
       ActionView::Base.send :include, ToSpreadsheet::Rails::ViewHelpers
     end
   end