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# Premailer Rails 3 README

This gem is a no config solution for the wonderful
[Premailer gem](https://github.com/alexdunae/premailer) to be used with Rails 3.
It uses interceptors which were introduced in Rails 3 and tweaks all mails which
are `deliver`ed and adds a plain text part to them and inlines all CSS rules
into the HTML part.

By default it inlines all the CSS files that are linked to in the HTML:

```html
<link type='text/css' ... />
```

Don't worry about the host in the CSS URL since this will be ignored.

If no CSS file is linked to in the HTML it will try to load a default CSS file
`email.css`.

Every CSS file (including the default `email.css`) is loaded from within the
app. The retrieval of the file depends on your assets configuration:

* Rails 3.1 asset pipeline: It will load the compiled version of the CSS asset
  which is normally located in `app/assets/stylesheets/`.

* Classic static assets: It will try to load the CSS file located in
  `public/stylesheets/`

* [Hassle](https://github.com/pedro/hassle): It will try to load the
  compiled CSS file located in the default Hassle location
  `tmp/hassle/stylesheets/`

## Installation

Simply add the gem to your Gemfile in your Rails project:

    gem 'premailer-rails3'

premailer-rails3 requires either nokogiri or hpricot. It doesn't list them as a
dependency so you can choose which one to use.

    gem 'nokogiri'
    # or
    gem 'hpricot'

If both are loaded for some reason, premailer chooses hpricot.

That's it!

## Configuration

Premailer itself accepts a number of options. In order for premailer-rails3 to
pass these options on to the underlying premailer instance, specify them in an
initializer:

```ruby
PremailerRails.config = {
  :preserve_styles => true,
  :remove_ids      => true
}
```

For a list of options, refer to the [Premailer documentation](http://rubydoc.info/gems/premailer/1.7.3/Premailer:initialize)

Note that the options `with_html_string` and `css_string` are used to make this
gem work and will thus be overridden.

Version data entries

2 entries across 2 versions & 1 rubygems

Version Path
premailer-rails3-1.1.0 README.md
premailer-rails3-1.0.2 README.md