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https://github.com/alno/irwi

Complete wiki plugin for Ruby on Rails
https://github.com/alno/irwi

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Complete wiki plugin for Ruby on Rails

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# Irwi

Irwi is a Ruby on Rails 4 plugin which adds wiki functionality to your
application.

## Status

[Build Status](http://travis-ci.org/alno/irwi)

## Installation

Add to your Gemfile:

gem 'irwi', :git => 'git://github.com/alno/irwi.git'

Then in your application directory call:

rails g irwi_wiki

It will generate:
* WikiPageController to serve wiki pages
* WikiPage model to represent page
* Migration to prepare database

Also it will add to your `routes.rb` something like:

wiki_root '/wiki'

## Wiki syntax (links to other pages)

You can link pages by using

[[Some page title]]

construction in text. If linked page exists, when it will be replaced with
link to this page, in other case it will be replaced with link to new page
with such path/title.

## Template definition

You may create your own templates for controller actions (`show`, `edit` and
`history`), in other case default built-in templates will be used.

## Helper definition

Following helpers are defined by default and you may replace them with you
own:
* `wiki_user` - Renders user name or link by given user object. By default
renders <Unknown> for `nil` and "User#{user.id}" for others.

## Configuration

Configuration options are acessed via `Irwi.config` object. Currently
supported options:
* `user_class_name` - Name of user model class. By default - 'User'

Define a method named 'current_user' method on WikiPagesController that returns the object for the current user

* `formatter` - Formatter instance, which process wiki content before
output (see section below).

* `paginator` - Paginator instance, which display pagination controls (see section below).

* `comparator` - Comparator instance, which builds and renders a set of
changes between to texts. By default instance of
`Irwi::Comparators::DiffLcs` is used (requires diff-lcs gem).

### Formatters

Irwi supports custom formatters which can be configured by setting `Irwi.config.formatter` to corresponding instance.
Each formatter should have method `format`, which gets a string and returns it formatted.

There are several supported formatters based on different gems (which tou should add to `Gemfile` of your application):
* `Irwi::Formatters::RedCloth` - markdown formatter based on `RedCloth` gem.
* `Irwi::Formatters::RedCarpet` - markdown formatter based on `redcarpet gem.
* `Irwi::Formatters::BlueCloth` - textile formatter based on `BlueCloth` gem.
* `Irwi::Formatters::WikiCloth` - formatter based on `wiki_cloth` gem.
* `Irwi::Formatters::SimpleHtml` which does nothing.

By default, Irwi will select first available (having corresponding gem in application `Gemfile`) formatter.
Also, you may select formatter explicitly by specifying `Irwi.config.formatter` value like:

Irwi.config.formatter = Irwi::Formatters::BlueCloth.new

### Paginators

Irwi supports custom paginators which can be configured by setting `Irwi.config.paginator` to corresponding instance.

There are following supported paginators (which tou should add to `Gemfile` of your application):
* `Irwi::Paginators::WillPaginate` - based on `will_paginate` gem.
* `Irwi::Paginators::Kaminari` - based on `kaminari` gem.
* `Irwi::Paginators::None` which does nothing.

By default, Irwi will select first available (having corresponding gem in application `Gemfile`) paginator.
Also, you may select paginator explicitly by specifying `Irwi.config.paginator` value like:

Irwi.config.paginator = Irwi::Paginators::WillPaginate.new

## Access control

If you want (and it's good idea) to specify which users can see or edit
certain pages you should simply override following methods in your controller:
* `show_allowed?` - should return `true` when it's allowed for current user
to see current page (@page).
* `history_allowed?` - should return `true` when it's allowed for user to
see history of current page (@page) and compare it's versions.
* `edit_allowed?` - should return `true` when it's allowed for current user
to modify current page (@page).

## Attachments

Irwi allows easy attachment integration in your wiki. There area several
simple steps to add attachments to wiki pages:
* Call `irwi_wiki_attachments` generator. It will create WikiPageAttachment
class.
* Include `config.gem "paperclip"` in your `environment.rb` or, if you
prefer another library modify generated code for it.
* Append to initializer (or create a new one) something like
`Irwi.config.page_attachment_class_name = 'WikiPageAttachment'`.
* Run `rake db:migrate` and start using attachments in your wiki!

## Contributors

* Alexey Noskov (http://github.com/alno)
* Ravi Bhim (http://github.com/ravibhim)
* Pavel Valodzka (http://github.com/valodzka)
* Xavier Defrang (http://github.com/xavier)
* Tomáš Pospíšek (http://github.com/tpo)
* Evan Arnold (http://github.com/earnold)
* https://github.com/alno/irwi/contributors

Feel free to add yourself when you add new features.

Copyright (c) 2009 Alexey Noskov, released under the MIT license