Basic wiki facilities for Vestibule

app/controllers/proposals_controller.rb

@@ -1,3 +1,5 @@
+require 'uri'
+
 class ProposalsController < ApplicationController
   before_filter :authenticate_user!, :except => [:index, :show]
 
@@ -16,6 +18,8 @@ def show
 
   def new
     @proposal = Proposal.new
+		title = params[:title]
+		@proposal.title = URI.unescape title if title
   end
 
   def create
@@ -36,7 +40,7 @@ def update
     if @proposal.update_attributes(params[:proposal])
       redirect_to proposal_path(@proposal)
     else
-      render :edit
+			render :edit
     end
   end
 

app/helpers/application_helper.rb

@@ -1,4 +1,5 @@
 require 'redcarpet'
+require 'uri'
 
 module ApplicationHelper
   def render_page_title
@@ -32,8 +33,17 @@ def avatar_url(user, bigger=false)
     end
   end
 
+  def wikiize(text)
+		names = {}
+    User.all.each {|user| names[user.name] = link_to(user.name, user) }
+    Proposal.all.each {|proposal| names[proposal.title] = link_to(proposal.title, proposal) }
+		text.gsub!(/\[\[(.+?)\]\]/) {|s| names[$1] || link_to($1, {:controller => "proposals", :action => "new", :title => URI.escape($1)}, :class => "New") }
+		text.gsub(/(^|\W)(@(.+?))(\W|$)/) {|s| user = User.find_by_twitter_nickname $3; $1 + (user ? link_to($2, user) : $2) + $4 }
+  end
+
   def markdown(text)
     if text
+			text = wikiize(text)
       markdown_parser.render(text).html_safe
     else
       nil

db/seeds.rb

@@ -6,8 +6,8 @@
 #   cities = City.create([{ :name => 'Chicago' }, { :name => 'Copenhagen' }])
 #   Mayor.create(:name => 'Daley', :city => cities.first)
 
-def user(name)
-  User.create!(:name => name, :twitter_nickname => name)
+def user(name, nickname=nil)
+  User.create!(:name => name, :twitter_nickname => nickname || name)
 end
 
 def suggestions_for(proposal, suggestions)
@@ -19,10 +19,10 @@ def suggestions_for(proposal, suggestions)
   end
 end
 
-alice = user("alice")
+alice = user("Alice", "alice")
 bob = user("bob")
-charlie = user("charlie")
-daniel = user("daniel")
+charlie = user("Charlie Parker", "charlie")
+daniel = user("Daniel Boone", "daniel")
 
 a = alice.proposals.create :title => "Fake it till you make it", :description => <<-EOS
 I've written a few things recently which work against 3rd party HTTP API's recently. 

public/stylesheets/vestibule.css

@@ -123,4 +123,6 @@ header .background li {
 #selections form, 
 #available_selections form {
   float: left;
-}
+}
+
+.New {color:black;}

test/unit/helpers/application_helper_test.rb

@@ -22,4 +22,43 @@ class ApplicationHelperTest < ActionView::TestCase
       end
     end
   end
+
+	context "wiki" do
+	  context "for a single user" do
+	    setup do
+	      @user = Factory(:user, :twitter_nickname => "rdrake98", :name => "Richard Drake")
+				@long = link_to("Richard Drake", "/users/rdrake98")
+				@short = link_to("@rdrake98", "/users/rdrake98")
+	    end
+
+	    should "not turn into link" do
+	      assert_equal "[[]]", wikiize("[[]]")
+				# what about multiple lines inside [[...]]?
+	      assert_equal "@other", wikiize("@other")
+	    end
+
+	    should "turn into link" do
+	      assert_equal @long, wikiize("[[Richard Drake]]")
+	      assert_equal @short, wikiize("@rdrake98")
+	      assert_equal "#{@long}same as #{@short}; #{@short} is but not @other.", wikiize("[[Richard Drake]]same as @rdrake98; @rdrake98 is but not @other.")
+	      assert_equal "#{@long}not same as@rdrake98; #{@short} is.", wikiize("[[Richard Drake]]not same as@rdrake98; @rdrake98 is.")
+				# the following ain't perfect but we can probably live with it
+	      assert_equal "#{@long}same as #{@short};@rdrake98 isn't.", wikiize("[[Richard Drake]]same as @rdrake98;@rdrake98 isn't.")
+	    end
+	  end
+
+	  context "for a single proposal" do
+	    setup do
+	      @user = Factory(:proposal, :title => "My One and Only")
+				@my_only = link_to("My One and Only", "/proposals/1")
+				@her_latest = link_to("Her Latest Idea", "/proposals/new?title=Her%2520Latest%2520Idea", :class => "New")
+	    end
+
+	    should "turn into link" do
+	      assert_equal @my_only, wikiize("[[My One and Only]]")
+	      assert_equal @her_latest, wikiize("[[Her Latest Idea]]")
+	      assert_equal "I prefer #{@her_latest} to #{@my_only}.", wikiize("I prefer [[Her Latest Idea]] to [[My One and Only]].")
+	    end
+	  end
+	end
 end