Freezing composite primary key so that we can apply TomH's patch to it, and that way Potlatch will work in Rails mode without a problem. Please test.

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Shaun McDonald 2008-11-15 01:11:27 +00:00
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Composite Primary Keys
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<h1>Composite Primary Keys</h1>
<div id="version" class="clickable" onclick='document.location = "http://rubyforge.org/projects/compositekeys"; return false'>
Get Version
<a href="http://rubyforge.org/projects/compositekeys" class="numbers">1.1.0</a>
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<h1>&amp;#x2192; Ruby on Rails</h1>
<h1>&amp;#x2192; ActiveRecords</h1>
<h2>What</h2>
<p>Ruby on Rails does not support composite primary keys. This free software is an extension <br />
to the database layer of Rails &#8211; <a href="http://wiki.rubyonrails.com/rails/pages/ActiveRecord">ActiveRecords</a> &#8211; to support composite primary keys as transparently as possible.</p>
<p>Any Ruby script using ActiveRecords can use Composite Primary Keys with this library.</p>
<h2>Installing</h2>
<p><pre class="syntax"><span class="ident">sudo</span> <span class="ident">gem</span> <span class="ident">install</span> <span class="ident">composite_primary_keys</span></pre></p>
<p>Rails: Add the following to the bottom of your <code>environment.rb</code> file</p>
<p><pre class="syntax"><span class="ident">require</span> <span class="punct">'</span><span class="string">composite_primary_keys</span><span class="punct">'</span></pre></p>
<p>Ruby scripts: Add the following to the top of your script</p>
<p><pre class="syntax"><span class="ident">require</span> <span class="punct">'</span><span class="string">rubygems</span><span class="punct">'</span>
<span class="ident">require</span> <span class="punct">'</span><span class="string">composite_primary_keys</span><span class="punct">'</span></pre></p>
<h2>The basics</h2>
<p>A model with composite primary keys would look like&#8230;</p>
<p><pre class="syntax"><span class="keyword">class </span><span class="class">Membership</span> <span class="punct">&lt;</span> <span class="constant">ActiveRecord</span><span class="punct">::</span><span class="constant">Base</span>
<span class="comment"># set_primary_keys *keys - turns on composite key functionality</span>
<span class="ident">set_primary_keys</span> <span class="symbol">:user_id</span><span class="punct">,</span> <span class="symbol">:group_id</span>
<span class="ident">belongs_to</span> <span class="symbol">:user</span>
<span class="ident">belongs_to</span> <span class="symbol">:group</span>
<span class="ident">has_many</span> <span class="symbol">:statuses</span><span class="punct">,</span> <span class="symbol">:class_name</span> <span class="punct">=&gt;</span> <span class="punct">'</span><span class="string">MembershipStatus</span><span class="punct">',</span> <span class="symbol">:foreign_key</span> <span class="punct">=&gt;</span> <span class="punct">[</span><span class="symbol">:user_id</span><span class="punct">,</span> <span class="symbol">:group_id</span><span class="punct">]</span>
<span class="keyword">end</span></pre></p>
<p>A model associated with a composite key model would be defined like&#8230;</p>
<p><pre class="syntax"><span class="keyword">class </span><span class="class">MembershipStatus</span> <span class="punct">&lt;</span> <span class="constant">ActiveRecord</span><span class="punct">::</span><span class="constant">Base</span>
<span class="ident">belongs_to</span> <span class="symbol">:membership</span><span class="punct">,</span> <span class="symbol">:foreign_key</span> <span class="punct">=&gt;</span> <span class="punct">[</span><span class="symbol">:user_id</span><span class="punct">,</span> <span class="symbol">:group_id</span><span class="punct">]</span>
<span class="keyword">end</span></pre></p>
<p>That is, associations can include composite keys too. Nice.</p>
<h2>Demonstration of usage</h2>
<p>Once you&#8217;ve created your models to specify composite primary keys (such as the Membership class) and associations (such as MembershipStatus#membership), you can uses them like any normal model with associations.</p>
<p>But first, lets check out our primary keys.</p>
<p><pre class="syntax"><span class="constant">MembershipStatus</span><span class="punct">.</span><span class="ident">primary_key</span> <span class="comment"># =&gt; &quot;id&quot; # normal single key</span>
<span class="constant">Membership</span><span class="punct">.</span><span class="ident">primary_key</span> <span class="comment"># =&gt; [:user_id, :group_id] # composite keys</span>
<span class="constant">Membership</span><span class="punct">.</span><span class="ident">primary_key</span><span class="punct">.</span><span class="ident">to_s</span> <span class="comment"># =&gt; &quot;user_id,group_id&quot;</span></pre></p>
<p>Now we want to be able to find instances using the same syntax we always use for ActiveRecords&#8230;</p>
<p><pre class="syntax"><span class="constant">MembershipStatus</span><span class="punct">.</span><span class="ident">find</span><span class="punct">(</span><span class="number">1</span><span class="punct">)</span> <span class="comment"># single id returns single instance</span>
<span class="punct">=&gt;</span> <span class="punct">&lt;</span><span class="constant">MembershipStatus</span><span class="punct">:</span><span class="number">0x392a8c8</span> <span class="attribute">@attributes</span><span class="punct">={&quot;</span><span class="string">id</span><span class="punct">&quot;=&gt;&quot;</span><span class="string">1</span><span class="punct">&quot;,</span> <span class="punct">&quot;</span><span class="string">status</span><span class="punct">&quot;=&gt;&quot;</span><span class="string">Active</span><span class="punct">&quot;}&gt;</span>
<span class="constant">Membership</span><span class="punct">.</span><span class="ident">find</span><span class="punct">(</span><span class="number">1</span><span class="punct">,</span><span class="number">1</span><span class="punct">)</span> <span class="comment"># composite ids returns single instance</span>
<span class="punct">=&gt;</span> <span class="punct">&lt;</span><span class="constant">Membership</span><span class="punct">:</span><span class="number">0x39218b0</span> <span class="attribute">@attributes</span><span class="punct">={&quot;</span><span class="string">user_id</span><span class="punct">&quot;=&gt;&quot;</span><span class="string">1</span><span class="punct">&quot;,</span> <span class="punct">&quot;</span><span class="string">group_id</span><span class="punct">&quot;=&gt;&quot;</span><span class="string">1</span><span class="punct">&quot;}&gt;</span></pre></p>
<p>Using <a href="http://www.rubyonrails.org">Ruby on Rails</a>? You&#8217;ll want to your url_for helpers<br />
to convert composite keys into strings and back again&#8230;</p>
<p><pre class="syntax"><span class="constant">Membership</span><span class="punct">.</span><span class="ident">find</span><span class="punct">(</span><span class="symbol">:first</span><span class="punct">).</span><span class="ident">to_param</span> <span class="comment"># =&gt; &quot;1,1&quot;</span></pre></p>
<p>And then use the string id within your controller to find the object again</p>
<p><pre class="syntax"><span class="ident">params</span><span class="punct">[</span><span class="symbol">:id</span><span class="punct">]</span> <span class="comment"># =&gt; '1,1'</span>
<span class="constant">Membership</span><span class="punct">.</span><span class="ident">find</span><span class="punct">(</span><span class="ident">params</span><span class="punct">[</span><span class="symbol">:id</span><span class="punct">])</span>
<span class="punct">=&gt;</span> <span class="punct">&lt;</span><span class="constant">Membership</span><span class="punct">:</span><span class="number">0x3904288</span> <span class="attribute">@attributes</span><span class="punct">={&quot;</span><span class="string">user_id</span><span class="punct">&quot;=&gt;&quot;</span><span class="string">1</span><span class="punct">&quot;,</span> <span class="punct">&quot;</span><span class="string">group_id</span><span class="punct">&quot;=&gt;&quot;</span><span class="string">1</span><span class="punct">&quot;}&gt;</span></pre></p>
<p>That is, an ActiveRecord supporting composite keys behaves transparently<br />
throughout your application. Just like a normal ActiveRecord.</p>
<h2>Other tricks</h2>
<h3>Pass a list of composite ids to the <code>#find</code> method</h3>
<p><pre class="syntax"><span class="constant">Membership</span><span class="punct">.</span><span class="ident">find</span> <span class="punct">[</span><span class="number">1</span><span class="punct">,</span><span class="number">1</span><span class="punct">],</span> <span class="punct">[</span><span class="number">2</span><span class="punct">,</span><span class="number">1</span><span class="punct">]</span>
<span class="punct">=&gt;</span> <span class="punct">[</span>
<span class="punct">&lt;</span><span class="constant">Membership</span><span class="punct">:</span><span class="number">0x394ade8</span> <span class="attribute">@attributes</span><span class="punct">={&quot;</span><span class="string">user_id</span><span class="punct">&quot;=&gt;&quot;</span><span class="string">1</span><span class="punct">&quot;,</span> <span class="punct">&quot;</span><span class="string">group_id</span><span class="punct">&quot;=&gt;&quot;</span><span class="string">1</span><span class="punct">&quot;}&gt;,</span>
<span class="punct">&lt;</span><span class="constant">Membership</span><span class="punct">:</span><span class="number">0x394ada0</span> <span class="attribute">@attributes</span><span class="punct">={&quot;</span><span class="string">user_id</span><span class="punct">&quot;=&gt;&quot;</span><span class="string">2</span><span class="punct">&quot;,</span> <span class="punct">&quot;</span><span class="string">group_id</span><span class="punct">&quot;=&gt;&quot;</span><span class="string">1</span><span class="punct">&quot;}&gt;</span>
<span class="punct">]</span></pre></p>
<p>Perform <code>#count</code> operations</p>
<p><pre class="syntax"><span class="constant">MembershipStatus</span><span class="punct">.</span><span class="ident">find</span><span class="punct">(</span><span class="symbol">:first</span><span class="punct">).</span><span class="ident">memberships</span><span class="punct">.</span><span class="ident">count</span> <span class="comment"># =&gt; 1</span></pre></p>
<h3>Routes with Rails</h3>
<p>From Pete Sumskas:</p>
<blockquote>
<p>I ran into one problem that I didn&#8217;t see mentioned on <a href="http://groups.google.com/group/compositekeys">this list</a> &#8211; <br />
and I didn&#8217;t see any information about what I should do to address it in the<br />
documentation (might have missed it).</p>
<p>The problem was that the urls being generated for a &#8216;show&#8217; action (for<br />
example) had a syntax like:<br />
<br />
<pre>/controller/show/123000,Bu70</pre></p>
<p>for a two-field composite PK. The default routing would not match that,<br />
so after working out how to do the routing I added:<br />
<br />
<pre class="syntax"><span class="ident">map</span><span class="punct">.</span><span class="ident">connect</span> <span class="punct">'</span><span class="string">:controller/:action/:id</span><span class="punct">',</span> <span class="symbol">:id</span> <span class="punct">=&gt;</span> <span class="punct">/</span><span class="regex"><span class="escape">\w</span>+(,<span class="escape">\w</span>+)*</span><span class="punct">/</span></pre><br />
<br />
to my <code>route.rb</code> file.</p>
</blockquote>
<p><a name="dbs"></a></p>
<h2>Which databases?</h2>
<p>A suite of unit tests have been run on the following databases supported by ActiveRecord:</p>
<table>
<tr>
<th>Database</th>
<th>Test Success</th>
<th>User feedback</th>
</tr>
<tr>
<td>mysql </td>
<td><span class=success><span class="caps">YES</span></span></td>
<td><span class=success><span class="caps">YES</span></span> (<a href="mailto:compositekeys@googlegroups.com?subject=Mysql+is+working">Yes!</a> or <a href="mailto:compositekeys@googlegroups.com?subject=Mysql+is+failing">No&#8230;</a>)</td>
</tr>
<tr>
<td>sqlite3 </td>
<td><span class=success><span class="caps">YES</span></span></td>
<td><span class=success><span class="caps">YES</span></span> (<a href="mailto:compositekeys@googlegroups.com?subject=Sqlite3+is+working">Yes!</a> or <a href="mailto:compositekeys@googlegroups.com?subject=Sqlite3+is+failing">No&#8230;</a>)</td>
</tr>
<tr>
<td>postgresql</td>
<td><span class=success><span class="caps">YES</span></span></td>
<td><span class=success><span class="caps">YES</span></span> (<a href="mailto:compositekeys@googlegroups.com?subject=Postgresql+is+working">Yes!</a> or <a href="mailto:compositekeys@googlegroups.com?subject=Postgresql+is+failing">No&#8230;</a>)</td>
</tr>
<tr>
<td>oracle </td>
<td><span class=success><span class="caps">YES</span></span></td>
<td><span class=success><span class="caps">YES</span></span> (<a href="mailto:compositekeys@googlegroups.com?subject=Oracle+is+working">Yes!</a> or <a href="mailto:compositekeys@googlegroups.com?subject=Oracle+is+failing">No&#8230;</a>)</td>
</tr>
<tr>
<td>sqlserver </td>
<td><span class=unknown>???</span> (<a href="mailto:compositekeys@googlegroups.com?subject=Help+with+SQLServer">I can help</a>)</td>
<td><span class=unknown>???</span> (<a href="mailto:compositekeys@googlegroups.com?subject=SQLServer+is+working">Yes!</a> or <a href="mailto:compositekeys@googlegroups.com?subject=SQLServer+is+failing">No&#8230;</a>)</td>
</tr>
<tr>
<td>db2 </td>
<td><span class=unknown>???</span> (<a href="mailto:compositekeys@googlegroups.com?subject=Help+with+DB2">I can help</a>)</td>
<td><span class=unknown>???</span> (<a href="mailto:compositekeys@googlegroups.com?subject=DB2+is+working">Yes!</a> or <a href="mailto:compositekeys@googlegroups.com?subject=DB2+is+failing">No&#8230;</a>)</td>
</tr>
<tr>
<td>firebird </td>
<td><span class=unknown>???</span> (<a href="mailto:compositekeys@googlegroups.com?subject=Help+with+Firebird">I can help</a>)</td>
<td><span class=unknown>???</span> (<a href="mailto:compositekeys@googlegroups.com?subject=Firebird+is+working">Yes!</a> or <a href="mailto:compositekeys@googlegroups.com?subject=Firebird+is+failing">No&#8230;</a>)</td>
</tr>
<tr>
<td>sybase </td>
<td><span class=unknown>???</span> (<a href="mailto:compositekeys@googlegroups.com?subject=Help+with+Sybase">I can help</a>)</td>
<td><span class=unknown>???</span> (<a href="mailto:compositekeys@googlegroups.com?subject=Sybase+is+working">Yes!</a> or <a href="mailto:compositekeys@googlegroups.com?subject=Sybase+is+failing">No&#8230;</a>)</td>
</tr>
<tr>
<td>openbase </td>
<td><span class=unknown>???</span> (<a href="mailto:compositekeys@googlegroups.com?subject=Help+with+Openbase">I can help</a>)</td>
<td><span class=unknown>???</span> (<a href="mailto:compositekeys@googlegroups.com?subject=Openbase+is+working">Yes!</a> or <a href="mailto:compositekeys@googlegroups.com?subject=Openbase+is+failing">No&#8230;</a>)</td>
</tr>
<tr>
<td>frontbase </td>
<td><span class=unknown>???</span> (<a href="mailto:compositekeys@googlegroups.com?subject=Help+with+Frontbase">I can help</a>)</td>
<td><span class=unknown>???</span> (<a href="mailto:compositekeys@googlegroups.com?subject=Frontbase+is+working">Yes!</a> or <a href="mailto:compositekeys@googlegroups.com?subject=Frontbase+is+failing">No&#8230;</a>)</td>
</tr>
</table>
<h2>Dr Nic&#8217;s Blog</h2>
<p><a href="http://www.drnicwilliams.com">http://www.drnicwilliams.com</a> &#8211; for future announcements and<br />
other stories and things.</p>
<h2>Forum</h2>
<p><a href="http://groups.google.com/group/compositekeys">http://groups.google.com/group/compositekeys</a></p>
<h2>How to submit patches</h2>
<p>Read the <a href="http://drnicwilliams.com/2007/06/01/8-steps-for-fixing-other-peoples-code/">8 steps for fixing other people&#8217;s code</a> and for section <a href="http://drnicwilliams.com/2007/06/01/8-steps-for-fixing-other-peoples-code/#8b-google-groups">8b: Submit patch to Google Groups</a>, use the Google Group above.</p>
<p>The source for this project is available via git. You can <a href="http://github.com/drnic/composite_primary_keys/tree/master">browse and/or fork the source</a>, or to clone the project locally:<br />
<br />
<pre>git clone git://github.com/drnic/composite_primary_keys.git</pre></p>
<h2>Licence</h2>
<p>This code is free to use under the terms of the <span class="caps">MIT</span> licence.</p>
<h2>Contact</h2>
<p>Comments are welcome. Send an email to <a href="mailto:drnicwilliams@gmail.com">Dr Nic Williams</a>.</p>
<p class="coda">
<a href="mailto:drnicwilliams@gmail.com">Dr Nic</a>, 25th October 2008<br>
Theme extended from <a href="http://rb2js.rubyforge.org/">Paul Battley</a>
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h1. Composite Primary Keys
h1. &#x2192; Ruby on Rails
h1. &#x2192; ActiveRecords
h2. What
Ruby on Rails does not support composite primary keys. This free software is an extension
to the database layer of Rails - "ActiveRecords":http://wiki.rubyonrails.com/rails/pages/ActiveRecord - to support composite primary keys as transparently as possible.
Any Ruby script using ActiveRecords can use Composite Primary Keys with this library.
h2. Installing
<pre syntax="ruby">sudo gem install composite_primary_keys</pre>
Rails: Add the following to the bottom of your <code>environment.rb</code> file
<pre syntax="ruby">require 'composite_primary_keys'</pre>
Ruby scripts: Add the following to the top of your script
<pre syntax="ruby">require 'rubygems'
require 'composite_primary_keys'</pre>
h2. The basics
A model with composite primary keys would look like...
<pre syntax="ruby">class Membership < ActiveRecord::Base
# set_primary_keys *keys - turns on composite key functionality
set_primary_keys :user_id, :group_id
belongs_to :user
belongs_to :group
has_many :statuses, :class_name => 'MembershipStatus', :foreign_key => [:user_id, :group_id]
end</pre>
A model associated with a composite key model would be defined like...
<pre syntax="ruby">class MembershipStatus < ActiveRecord::Base
belongs_to :membership, :foreign_key => [:user_id, :group_id]
end</pre>
That is, associations can include composite keys too. Nice.
h2. Demonstration of usage
Once you've created your models to specify composite primary keys (such as the Membership class) and associations (such as MembershipStatus#membership), you can uses them like any normal model with associations.
But first, lets check out our primary keys.
<pre syntax="ruby">MembershipStatus.primary_key # => "id" # normal single key
Membership.primary_key # => [:user_id, :group_id] # composite keys
Membership.primary_key.to_s # => "user_id,group_id"</pre>
Now we want to be able to find instances using the same syntax we always use for ActiveRecords...
<pre syntax="ruby">MembershipStatus.find(1) # single id returns single instance
=> <MembershipStatus:0x392a8c8 @attributes={"id"=>"1", "status"=>"Active"}>
Membership.find(1,1) # composite ids returns single instance
=> <Membership:0x39218b0 @attributes={"user_id"=>"1", "group_id"=>"1"}></pre>
Using "Ruby on Rails":http://www.rubyonrails.org? You'll want to your url_for helpers
to convert composite keys into strings and back again...
<pre syntax="ruby">Membership.find(:first).to_param # => "1,1"</pre>
And then use the string id within your controller to find the object again
<pre syntax="ruby">params[:id] # => '1,1'
Membership.find(params[:id])
=> <Membership:0x3904288 @attributes={"user_id"=>"1", "group_id"=>"1"}></pre>
That is, an ActiveRecord supporting composite keys behaves transparently
throughout your application. Just like a normal ActiveRecord.
h2. Other tricks
h3. Pass a list of composite ids to the <code>#find</code> method
<pre syntax="ruby">Membership.find [1,1], [2,1]
=> [
<Membership:0x394ade8 @attributes={"user_id"=>"1", "group_id"=>"1"}>,
<Membership:0x394ada0 @attributes={"user_id"=>"2", "group_id"=>"1"}>
]</pre>
Perform <code>#count</code> operations
<pre syntax="ruby">MembershipStatus.find(:first).memberships.count # => 1</pre>
h3. Routes with Rails
From Pete Sumskas:
<blockquote>
I ran into one problem that I didn't see mentioned on "this list":http://groups.google.com/group/compositekeys -
and I didn't see any information about what I should do to address it in the
documentation (might have missed it).
The problem was that the urls being generated for a 'show' action (for
example) had a syntax like:
<pre>/controller/show/123000,Bu70</pre>
for a two-field composite PK. The default routing would not match that,
so after working out how to do the routing I added:
<pre syntax="ruby">map.connect ':controller/:action/:id', :id => /\w+(,\w+)*/</pre>
to my <code>route.rb</code> file.
</blockquote>
<a name="dbs"></a>
h2. Which databases?
A suite of unit tests have been run on the following databases supported by ActiveRecord:
|_.Database|_.Test Success|_.User feedback|
|mysql |<span class=success>YES</span>|<span class=success>YES</span> ("Yes!":mailto:compositekeys@googlegroups.com?subject=Mysql+is+working or "No...":mailto:compositekeys@googlegroups.com?subject=Mysql+is+failing)|
|sqlite3 |<span class=success>YES</span>|<span class=success>YES</span> ("Yes!":mailto:compositekeys@googlegroups.com?subject=Sqlite3+is+working or "No...":mailto:compositekeys@googlegroups.com?subject=Sqlite3+is+failing)|
|postgresql|<span class=success>YES</span>|<span class=success>YES</span> ("Yes!":mailto:compositekeys@googlegroups.com?subject=Postgresql+is+working or "No...":mailto:compositekeys@googlegroups.com?subject=Postgresql+is+failing)|
|oracle |<span class=success>YES</span>|<span class=success>YES</span> ("Yes!":mailto:compositekeys@googlegroups.com?subject=Oracle+is+working or "No...":mailto:compositekeys@googlegroups.com?subject=Oracle+is+failing)|
|sqlserver |<span class=unknown>???</span> ("I can help":mailto:compositekeys@googlegroups.com?subject=Help+with+SQLServer)|<span class=unknown>???</span> ("Yes!":mailto:compositekeys@googlegroups.com?subject=SQLServer+is+working or "No...":mailto:compositekeys@googlegroups.com?subject=SQLServer+is+failing)|
|db2 |<span class=unknown>???</span> ("I can help":mailto:compositekeys@googlegroups.com?subject=Help+with+DB2)|<span class=unknown>???</span> ("Yes!":mailto:compositekeys@googlegroups.com?subject=DB2+is+working or "No...":mailto:compositekeys@googlegroups.com?subject=DB2+is+failing)|
|firebird |<span class=unknown>???</span> ("I can help":mailto:compositekeys@googlegroups.com?subject=Help+with+Firebird)|<span class=unknown>???</span> ("Yes!":mailto:compositekeys@googlegroups.com?subject=Firebird+is+working or "No...":mailto:compositekeys@googlegroups.com?subject=Firebird+is+failing)|
|sybase |<span class=unknown>???</span> ("I can help":mailto:compositekeys@googlegroups.com?subject=Help+with+Sybase)|<span class=unknown>???</span> ("Yes!":mailto:compositekeys@googlegroups.com?subject=Sybase+is+working or "No...":mailto:compositekeys@googlegroups.com?subject=Sybase+is+failing)|
|openbase |<span class=unknown>???</span> ("I can help":mailto:compositekeys@googlegroups.com?subject=Help+with+Openbase)|<span class=unknown>???</span> ("Yes!":mailto:compositekeys@googlegroups.com?subject=Openbase+is+working or "No...":mailto:compositekeys@googlegroups.com?subject=Openbase+is+failing)|
|frontbase |<span class=unknown>???</span> ("I can help":mailto:compositekeys@googlegroups.com?subject=Help+with+Frontbase)|<span class=unknown>???</span> ("Yes!":mailto:compositekeys@googlegroups.com?subject=Frontbase+is+working or "No...":mailto:compositekeys@googlegroups.com?subject=Frontbase+is+failing)|
h2. Dr Nic's Blog
"http://www.drnicwilliams.com":http://www.drnicwilliams.com - for future announcements and
other stories and things.
h2. Forum
"http://groups.google.com/group/compositekeys":http://groups.google.com/group/compositekeys
h2. How to submit patches
Read the "8 steps for fixing other people's code":http://drnicwilliams.com/2007/06/01/8-steps-for-fixing-other-peoples-code/ and for section "8b: Submit patch to Google Groups":http://drnicwilliams.com/2007/06/01/8-steps-for-fixing-other-peoples-code/#8b-google-groups, use the Google Group above.
The source for this project is available via git. You can "browse and/or fork the source":http://github.com/drnic/composite_primary_keys/tree/master, or to clone the project locally:
<pre>git clone git://github.com/drnic/composite_primary_keys.git</pre>
h2. Licence
This code is free to use under the terms of the MIT licence.
h2. Contact
Comments are welcome. Send an email to "Dr Nic Williams":mailto:drnicwilliams@gmail.com.

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@ -0,0 +1,285 @@
/****************************************************************
* *
* curvyCorners *
* ------------ *
* *
* This script generates rounded corners for your divs. *
* *
* Version 1.2.9 *
* Copyright (c) 2006 Cameron Cooke *
* By: Cameron Cooke and Tim Hutchison. *
* *
* *
* Website: http://www.curvycorners.net *
* Email: info@totalinfinity.com *
* Forum: http://www.curvycorners.net/forum/ *
* *
* *
* This library is free software; you can redistribute *
* it and/or modify it under the terms of the GNU *
* Lesser General Public License as published by the *
* Free Software Foundation; either version 2.1 of the *
* License, or (at your option) any later version. *
* *
* This library is distributed in the hope that it will *
* be useful, but WITHOUT ANY WARRANTY; without even the *
* implied warranty of MERCHANTABILITY or FITNESS FOR A *
* PARTICULAR PURPOSE. See the GNU Lesser General Public *
* License for more details. *
* *
* You should have received a copy of the GNU Lesser *
* General Public License along with this library; *
* Inc., 59 Temple Place, Suite 330, Boston, *
* MA 02111-1307 USA *
* *
****************************************************************/
var isIE = navigator.userAgent.toLowerCase().indexOf("msie") > -1; var isMoz = document.implementation && document.implementation.createDocument; var isSafari = ((navigator.userAgent.toLowerCase().indexOf('safari')!=-1)&&(navigator.userAgent.toLowerCase().indexOf('mac')!=-1))?true:false; function curvyCorners()
{ if(typeof(arguments[0]) != "object") throw newCurvyError("First parameter of curvyCorners() must be an object."); if(typeof(arguments[1]) != "object" && typeof(arguments[1]) != "string") throw newCurvyError("Second parameter of curvyCorners() must be an object or a class name."); if(typeof(arguments[1]) == "string")
{ var startIndex = 0; var boxCol = getElementsByClass(arguments[1]);}
else
{ var startIndex = 1; var boxCol = arguments;}
var curvyCornersCol = new Array(); if(arguments[0].validTags)
var validElements = arguments[0].validTags; else
var validElements = ["div"]; for(var i = startIndex, j = boxCol.length; i < j; i++)
{ var currentTag = boxCol[i].tagName.toLowerCase(); if(inArray(validElements, currentTag) !== false)
{ curvyCornersCol[curvyCornersCol.length] = new curvyObject(arguments[0], boxCol[i]);}
}
this.objects = curvyCornersCol; this.applyCornersToAll = function()
{ for(var x = 0, k = this.objects.length; x < k; x++)
{ this.objects[x].applyCorners();}
}
}
function curvyObject()
{ this.box = arguments[1]; this.settings = arguments[0]; this.topContainer = null; this.bottomContainer = null; this.masterCorners = new Array(); this.contentDIV = null; var boxHeight = get_style(this.box, "height", "height"); var boxWidth = get_style(this.box, "width", "width"); var borderWidth = get_style(this.box, "borderTopWidth", "border-top-width"); var borderColour = get_style(this.box, "borderTopColor", "border-top-color"); var boxColour = get_style(this.box, "backgroundColor", "background-color"); var backgroundImage = get_style(this.box, "backgroundImage", "background-image"); var boxPosition = get_style(this.box, "position", "position"); var boxPadding = get_style(this.box, "paddingTop", "padding-top"); this.boxHeight = parseInt(((boxHeight != "" && boxHeight != "auto" && boxHeight.indexOf("%") == -1)? boxHeight.substring(0, boxHeight.indexOf("px")) : this.box.scrollHeight)); this.boxWidth = parseInt(((boxWidth != "" && boxWidth != "auto" && boxWidth.indexOf("%") == -1)? boxWidth.substring(0, boxWidth.indexOf("px")) : this.box.scrollWidth)); this.borderWidth = parseInt(((borderWidth != "" && borderWidth.indexOf("px") !== -1)? borderWidth.slice(0, borderWidth.indexOf("px")) : 0)); this.boxColour = format_colour(boxColour); this.boxPadding = parseInt(((boxPadding != "" && boxPadding.indexOf("px") !== -1)? boxPadding.slice(0, boxPadding.indexOf("px")) : 0)); this.borderColour = format_colour(borderColour); this.borderString = this.borderWidth + "px" + " solid " + this.borderColour; this.backgroundImage = ((backgroundImage != "none")? backgroundImage : ""); this.boxContent = this.box.innerHTML; if(boxPosition != "absolute") this.box.style.position = "relative"; this.box.style.padding = "0px"; if(isIE && boxWidth == "auto" && boxHeight == "auto") this.box.style.width = "100%"; if(this.settings.autoPad == true && this.boxPadding > 0)
this.box.innerHTML = ""; this.applyCorners = function()
{ for(var t = 0; t < 2; t++)
{ switch(t)
{ case 0:
if(this.settings.tl || this.settings.tr)
{ var newMainContainer = document.createElement("DIV"); newMainContainer.style.width = "100%"; newMainContainer.style.fontSize = "1px"; newMainContainer.style.overflow = "hidden"; newMainContainer.style.position = "absolute"; newMainContainer.style.paddingLeft = this.borderWidth + "px"; newMainContainer.style.paddingRight = this.borderWidth + "px"; var topMaxRadius = Math.max(this.settings.tl ? this.settings.tl.radius : 0, this.settings.tr ? this.settings.tr.radius : 0); newMainContainer.style.height = topMaxRadius + "px"; newMainContainer.style.top = 0 - topMaxRadius + "px"; newMainContainer.style.left = 0 - this.borderWidth + "px"; this.topContainer = this.box.appendChild(newMainContainer);}
break; case 1:
if(this.settings.bl || this.settings.br)
{ var newMainContainer = document.createElement("DIV"); newMainContainer.style.width = "100%"; newMainContainer.style.fontSize = "1px"; newMainContainer.style.overflow = "hidden"; newMainContainer.style.position = "absolute"; newMainContainer.style.paddingLeft = this.borderWidth + "px"; newMainContainer.style.paddingRight = this.borderWidth + "px"; var botMaxRadius = Math.max(this.settings.bl ? this.settings.bl.radius : 0, this.settings.br ? this.settings.br.radius : 0); newMainContainer.style.height = botMaxRadius + "px"; newMainContainer.style.bottom = 0 - botMaxRadius + "px"; newMainContainer.style.left = 0 - this.borderWidth + "px"; this.bottomContainer = this.box.appendChild(newMainContainer);}
break;}
}
if(this.topContainer) this.box.style.borderTopWidth = "0px"; if(this.bottomContainer) this.box.style.borderBottomWidth = "0px"; var corners = ["tr", "tl", "br", "bl"]; for(var i in corners)
{ if(i > -1 < 4)
{ var cc = corners[i]; if(!this.settings[cc])
{ if(((cc == "tr" || cc == "tl") && this.topContainer != null) || ((cc == "br" || cc == "bl") && this.bottomContainer != null))
{ var newCorner = document.createElement("DIV"); newCorner.style.position = "relative"; newCorner.style.fontSize = "1px"; newCorner.style.overflow = "hidden"; if(this.backgroundImage == "")
newCorner.style.backgroundColor = this.boxColour; else
newCorner.style.backgroundImage = this.backgroundImage; switch(cc)
{ case "tl":
newCorner.style.height = topMaxRadius - this.borderWidth + "px"; newCorner.style.marginRight = this.settings.tr.radius - (this.borderWidth*2) + "px"; newCorner.style.borderLeft = this.borderString; newCorner.style.borderTop = this.borderString; newCorner.style.left = -this.borderWidth + "px"; break; case "tr":
newCorner.style.height = topMaxRadius - this.borderWidth + "px"; newCorner.style.marginLeft = this.settings.tl.radius - (this.borderWidth*2) + "px"; newCorner.style.borderRight = this.borderString; newCorner.style.borderTop = this.borderString; newCorner.style.backgroundPosition = "-" + (topMaxRadius + this.borderWidth) + "px 0px"; newCorner.style.left = this.borderWidth + "px"; break; case "bl":
newCorner.style.height = botMaxRadius - this.borderWidth + "px"; newCorner.style.marginRight = this.settings.br.radius - (this.borderWidth*2) + "px"; newCorner.style.borderLeft = this.borderString; newCorner.style.borderBottom = this.borderString; newCorner.style.left = -this.borderWidth + "px"; newCorner.style.backgroundPosition = "-" + (this.borderWidth) + "px -" + (this.boxHeight + (botMaxRadius + this.borderWidth)) + "px"; break; case "br":
newCorner.style.height = botMaxRadius - this.borderWidth + "px"; newCorner.style.marginLeft = this.settings.bl.radius - (this.borderWidth*2) + "px"; newCorner.style.borderRight = this.borderString; newCorner.style.borderBottom = this.borderString; newCorner.style.left = this.borderWidth + "px"
newCorner.style.backgroundPosition = "-" + (botMaxRadius + this.borderWidth) + "px -" + (this.boxHeight + (botMaxRadius + this.borderWidth)) + "px"; break;}
}
}
else
{ if(this.masterCorners[this.settings[cc].radius])
{ var newCorner = this.masterCorners[this.settings[cc].radius].cloneNode(true);}
else
{ var newCorner = document.createElement("DIV"); newCorner.style.height = this.settings[cc].radius + "px"; newCorner.style.width = this.settings[cc].radius + "px"; newCorner.style.position = "absolute"; newCorner.style.fontSize = "1px"; newCorner.style.overflow = "hidden"; var borderRadius = parseInt(this.settings[cc].radius - this.borderWidth); for(var intx = 0, j = this.settings[cc].radius; intx < j; intx++)
{ if((intx +1) >= borderRadius)
var y1 = -1; else
var y1 = (Math.floor(Math.sqrt(Math.pow(borderRadius, 2) - Math.pow((intx+1), 2))) - 1); if(borderRadius != j)
{ if((intx) >= borderRadius)
var y2 = -1; else
var y2 = Math.ceil(Math.sqrt(Math.pow(borderRadius,2) - Math.pow(intx, 2))); if((intx+1) >= j)
var y3 = -1; else
var y3 = (Math.floor(Math.sqrt(Math.pow(j ,2) - Math.pow((intx+1), 2))) - 1);}
if((intx) >= j)
var y4 = -1; else
var y4 = Math.ceil(Math.sqrt(Math.pow(j ,2) - Math.pow(intx, 2))); if(y1 > -1) this.drawPixel(intx, 0, this.boxColour, 100, (y1+1), newCorner, -1, this.settings[cc].radius); if(borderRadius != j)
{ for(var inty = (y1 + 1); inty < y2; inty++)
{ if(this.settings.antiAlias)
{ if(this.backgroundImage != "")
{ var borderFract = (pixelFraction(intx, inty, borderRadius) * 100); if(borderFract < 30)
{ this.drawPixel(intx, inty, this.borderColour, 100, 1, newCorner, 0, this.settings[cc].radius);}
else
{ this.drawPixel(intx, inty, this.borderColour, 100, 1, newCorner, -1, this.settings[cc].radius);}
}
else
{ var pixelcolour = BlendColour(this.boxColour, this.borderColour, pixelFraction(intx, inty, borderRadius)); this.drawPixel(intx, inty, pixelcolour, 100, 1, newCorner, 0, this.settings[cc].radius, cc);}
}
}
if(this.settings.antiAlias)
{ if(y3 >= y2)
{ if (y2 == -1) y2 = 0; this.drawPixel(intx, y2, this.borderColour, 100, (y3 - y2 + 1), newCorner, 0, 0);}
}
else
{ if(y3 >= y1)
{ this.drawPixel(intx, (y1 + 1), this.borderColour, 100, (y3 - y1), newCorner, 0, 0);}
}
var outsideColour = this.borderColour;}
else
{ var outsideColour = this.boxColour; var y3 = y1;}
if(this.settings.antiAlias)
{ for(var inty = (y3 + 1); inty < y4; inty++)
{ this.drawPixel(intx, inty, outsideColour, (pixelFraction(intx, inty , j) * 100), 1, newCorner, ((this.borderWidth > 0)? 0 : -1), this.settings[cc].radius);}
}
}
this.masterCorners[this.settings[cc].radius] = newCorner.cloneNode(true);}
if(cc != "br")
{ for(var t = 0, k = newCorner.childNodes.length; t < k; t++)
{ var pixelBar = newCorner.childNodes[t]; var pixelBarTop = parseInt(pixelBar.style.top.substring(0, pixelBar.style.top.indexOf("px"))); var pixelBarLeft = parseInt(pixelBar.style.left.substring(0, pixelBar.style.left.indexOf("px"))); var pixelBarHeight = parseInt(pixelBar.style.height.substring(0, pixelBar.style.height.indexOf("px"))); if(cc == "tl" || cc == "bl"){ pixelBar.style.left = this.settings[cc].radius -pixelBarLeft -1 + "px";}
if(cc == "tr" || cc == "tl"){ pixelBar.style.top = this.settings[cc].radius -pixelBarHeight -pixelBarTop + "px";}
switch(cc)
{ case "tr":
pixelBar.style.backgroundPosition = "-" + Math.abs((this.boxWidth - this.settings[cc].radius + this.borderWidth) + pixelBarLeft) + "px -" + Math.abs(this.settings[cc].radius -pixelBarHeight -pixelBarTop - this.borderWidth) + "px"; break; case "tl":
pixelBar.style.backgroundPosition = "-" + Math.abs((this.settings[cc].radius -pixelBarLeft -1) - this.borderWidth) + "px -" + Math.abs(this.settings[cc].radius -pixelBarHeight -pixelBarTop - this.borderWidth) + "px"; break; case "bl":
pixelBar.style.backgroundPosition = "-" + Math.abs((this.settings[cc].radius -pixelBarLeft -1) - this.borderWidth) + "px -" + Math.abs((this.boxHeight + this.settings[cc].radius + pixelBarTop) -this.borderWidth) + "px"; break;}
}
}
}
if(newCorner)
{ switch(cc)
{ case "tl":
if(newCorner.style.position == "absolute") newCorner.style.top = "0px"; if(newCorner.style.position == "absolute") newCorner.style.left = "0px"; if(this.topContainer) this.topContainer.appendChild(newCorner); break; case "tr":
if(newCorner.style.position == "absolute") newCorner.style.top = "0px"; if(newCorner.style.position == "absolute") newCorner.style.right = "0px"; if(this.topContainer) this.topContainer.appendChild(newCorner); break; case "bl":
if(newCorner.style.position == "absolute") newCorner.style.bottom = "0px"; if(newCorner.style.position == "absolute") newCorner.style.left = "0px"; if(this.bottomContainer) this.bottomContainer.appendChild(newCorner); break; case "br":
if(newCorner.style.position == "absolute") newCorner.style.bottom = "0px"; if(newCorner.style.position == "absolute") newCorner.style.right = "0px"; if(this.bottomContainer) this.bottomContainer.appendChild(newCorner); break;}
}
}
}
var radiusDiff = new Array(); radiusDiff["t"] = Math.abs(this.settings.tl.radius - this.settings.tr.radius)
radiusDiff["b"] = Math.abs(this.settings.bl.radius - this.settings.br.radius); for(z in radiusDiff)
{ if(z == "t" || z == "b")
{ if(radiusDiff[z])
{ var smallerCornerType = ((this.settings[z + "l"].radius < this.settings[z + "r"].radius)? z +"l" : z +"r"); var newFiller = document.createElement("DIV"); newFiller.style.height = radiusDiff[z] + "px"; newFiller.style.width = this.settings[smallerCornerType].radius+ "px"
newFiller.style.position = "absolute"; newFiller.style.fontSize = "1px"; newFiller.style.overflow = "hidden"; newFiller.style.backgroundColor = this.boxColour; switch(smallerCornerType)
{ case "tl":
newFiller.style.bottom = "0px"; newFiller.style.left = "0px"; newFiller.style.borderLeft = this.borderString; this.topContainer.appendChild(newFiller); break; case "tr":
newFiller.style.bottom = "0px"; newFiller.style.right = "0px"; newFiller.style.borderRight = this.borderString; this.topContainer.appendChild(newFiller); break; case "bl":
newFiller.style.top = "0px"; newFiller.style.left = "0px"; newFiller.style.borderLeft = this.borderString; this.bottomContainer.appendChild(newFiller); break; case "br":
newFiller.style.top = "0px"; newFiller.style.right = "0px"; newFiller.style.borderRight = this.borderString; this.bottomContainer.appendChild(newFiller); break;}
}
var newFillerBar = document.createElement("DIV"); newFillerBar.style.position = "relative"; newFillerBar.style.fontSize = "1px"; newFillerBar.style.overflow = "hidden"; newFillerBar.style.backgroundColor = this.boxColour; newFillerBar.style.backgroundImage = this.backgroundImage; switch(z)
{ case "t":
if(this.topContainer)
{ if(this.settings.tl.radius && this.settings.tr.radius)
{ newFillerBar.style.height = topMaxRadius - this.borderWidth + "px"; newFillerBar.style.marginLeft = this.settings.tl.radius - this.borderWidth + "px"; newFillerBar.style.marginRight = this.settings.tr.radius - this.borderWidth + "px"; newFillerBar.style.borderTop = this.borderString; if(this.backgroundImage != "")
newFillerBar.style.backgroundPosition = "-" + (topMaxRadius + this.borderWidth) + "px 0px"; this.topContainer.appendChild(newFillerBar);}
this.box.style.backgroundPosition = "0px -" + (topMaxRadius - this.borderWidth) + "px";}
break; case "b":
if(this.bottomContainer)
{ if(this.settings.bl.radius && this.settings.br.radius)
{ newFillerBar.style.height = botMaxRadius - this.borderWidth + "px"; newFillerBar.style.marginLeft = this.settings.bl.radius - this.borderWidth + "px"; newFillerBar.style.marginRight = this.settings.br.radius - this.borderWidth + "px"; newFillerBar.style.borderBottom = this.borderString; if(this.backgroundImage != "")
newFillerBar.style.backgroundPosition = "-" + (botMaxRadius + this.borderWidth) + "px -" + (this.boxHeight + (topMaxRadius + this.borderWidth)) + "px"; this.bottomContainer.appendChild(newFillerBar);}
}
break;}
}
}
if(this.settings.autoPad == true && this.boxPadding > 0)
{ var contentContainer = document.createElement("DIV"); contentContainer.style.position = "relative"; contentContainer.innerHTML = this.boxContent; contentContainer.className = "autoPadDiv"; var topPadding = Math.abs(topMaxRadius - this.boxPadding); var botPadding = Math.abs(botMaxRadius - this.boxPadding); if(topMaxRadius < this.boxPadding)
contentContainer.style.paddingTop = topPadding + "px"; if(botMaxRadius < this.boxPadding)
contentContainer.style.paddingBottom = botMaxRadius + "px"; contentContainer.style.paddingLeft = this.boxPadding + "px"; contentContainer.style.paddingRight = this.boxPadding + "px"; this.contentDIV = this.box.appendChild(contentContainer);}
}
this.drawPixel = function(intx, inty, colour, transAmount, height, newCorner, image, cornerRadius)
{ var pixel = document.createElement("DIV"); pixel.style.height = height + "px"; pixel.style.width = "1px"; pixel.style.position = "absolute"; pixel.style.fontSize = "1px"; pixel.style.overflow = "hidden"; var topMaxRadius = Math.max(this.settings["tr"].radius, this.settings["tl"].radius); if(image == -1 && this.backgroundImage != "")
{ pixel.style.backgroundImage = this.backgroundImage; pixel.style.backgroundPosition = "-" + (this.boxWidth - (cornerRadius - intx) + this.borderWidth) + "px -" + ((this.boxHeight + topMaxRadius + inty) -this.borderWidth) + "px";}
else
{ pixel.style.backgroundColor = colour;}
if (transAmount != 100)
setOpacity(pixel, transAmount); pixel.style.top = inty + "px"; pixel.style.left = intx + "px"; newCorner.appendChild(pixel);}
}
function insertAfter(parent, node, referenceNode)
{ parent.insertBefore(node, referenceNode.nextSibling);}
function BlendColour(Col1, Col2, Col1Fraction)
{ var red1 = parseInt(Col1.substr(1,2),16); var green1 = parseInt(Col1.substr(3,2),16); var blue1 = parseInt(Col1.substr(5,2),16); var red2 = parseInt(Col2.substr(1,2),16); var green2 = parseInt(Col2.substr(3,2),16); var blue2 = parseInt(Col2.substr(5,2),16); if(Col1Fraction > 1 || Col1Fraction < 0) Col1Fraction = 1; var endRed = Math.round((red1 * Col1Fraction) + (red2 * (1 - Col1Fraction))); if(endRed > 255) endRed = 255; if(endRed < 0) endRed = 0; var endGreen = Math.round((green1 * Col1Fraction) + (green2 * (1 - Col1Fraction))); if(endGreen > 255) endGreen = 255; if(endGreen < 0) endGreen = 0; var endBlue = Math.round((blue1 * Col1Fraction) + (blue2 * (1 - Col1Fraction))); if(endBlue > 255) endBlue = 255; if(endBlue < 0) endBlue = 0; return "#" + IntToHex(endRed)+ IntToHex(endGreen)+ IntToHex(endBlue);}
function IntToHex(strNum)
{ base = strNum / 16; rem = strNum % 16; base = base - (rem / 16); baseS = MakeHex(base); remS = MakeHex(rem); return baseS + '' + remS;}
function MakeHex(x)
{ if((x >= 0) && (x <= 9))
{ return x;}
else
{ switch(x)
{ case 10: return "A"; case 11: return "B"; case 12: return "C"; case 13: return "D"; case 14: return "E"; case 15: return "F";}
}
}
function pixelFraction(x, y, r)
{ var pixelfraction = 0; var xvalues = new Array(1); var yvalues = new Array(1); var point = 0; var whatsides = ""; var intersect = Math.sqrt((Math.pow(r,2) - Math.pow(x,2))); if ((intersect >= y) && (intersect < (y+1)))
{ whatsides = "Left"; xvalues[point] = 0; yvalues[point] = intersect - y; point = point + 1;}
var intersect = Math.sqrt((Math.pow(r,2) - Math.pow(y+1,2))); if ((intersect >= x) && (intersect < (x+1)))
{ whatsides = whatsides + "Top"; xvalues[point] = intersect - x; yvalues[point] = 1; point = point + 1;}
var intersect = Math.sqrt((Math.pow(r,2) - Math.pow(x+1,2))); if ((intersect >= y) && (intersect < (y+1)))
{ whatsides = whatsides + "Right"; xvalues[point] = 1; yvalues[point] = intersect - y; point = point + 1;}
var intersect = Math.sqrt((Math.pow(r,2) - Math.pow(y,2))); if ((intersect >= x) && (intersect < (x+1)))
{ whatsides = whatsides + "Bottom"; xvalues[point] = intersect - x; yvalues[point] = 0;}
switch (whatsides)
{ case "LeftRight":
pixelfraction = Math.min(yvalues[0],yvalues[1]) + ((Math.max(yvalues[0],yvalues[1]) - Math.min(yvalues[0],yvalues[1]))/2); break; case "TopRight":
pixelfraction = 1-(((1-xvalues[0])*(1-yvalues[1]))/2); break; case "TopBottom":
pixelfraction = Math.min(xvalues[0],xvalues[1]) + ((Math.max(xvalues[0],xvalues[1]) - Math.min(xvalues[0],xvalues[1]))/2); break; case "LeftBottom":
pixelfraction = (yvalues[0]*xvalues[1])/2; break; default:
pixelfraction = 1;}
return pixelfraction;}
function rgb2Hex(rgbColour)
{ try{ var rgbArray = rgb2Array(rgbColour); var red = parseInt(rgbArray[0]); var green = parseInt(rgbArray[1]); var blue = parseInt(rgbArray[2]); var hexColour = "#" + IntToHex(red) + IntToHex(green) + IntToHex(blue);}
catch(e){ alert("There was an error converting the RGB value to Hexadecimal in function rgb2Hex");}
return hexColour;}
function rgb2Array(rgbColour)
{ var rgbValues = rgbColour.substring(4, rgbColour.indexOf(")")); var rgbArray = rgbValues.split(", "); return rgbArray;}
function setOpacity(obj, opacity)
{ opacity = (opacity == 100)?99.999:opacity; if(isSafari && obj.tagName != "IFRAME")
{ var rgbArray = rgb2Array(obj.style.backgroundColor); var red = parseInt(rgbArray[0]); var green = parseInt(rgbArray[1]); var blue = parseInt(rgbArray[2]); obj.style.backgroundColor = "rgba(" + red + ", " + green + ", " + blue + ", " + opacity/100 + ")";}
else if(typeof(obj.style.opacity) != "undefined")
{ obj.style.opacity = opacity/100;}
else if(typeof(obj.style.MozOpacity) != "undefined")
{ obj.style.MozOpacity = opacity/100;}
else if(typeof(obj.style.filter) != "undefined")
{ obj.style.filter = "alpha(opacity:" + opacity + ")";}
else if(typeof(obj.style.KHTMLOpacity) != "undefined")
{ obj.style.KHTMLOpacity = opacity/100;}
}
function inArray(array, value)
{ for(var i = 0; i < array.length; i++){ if (array[i] === value) return i;}
return false;}
function inArrayKey(array, value)
{ for(key in array){ if(key === value) return true;}
return false;}
function addEvent(elm, evType, fn, useCapture) { if (elm.addEventListener) { elm.addEventListener(evType, fn, useCapture); return true;}
else if (elm.attachEvent) { var r = elm.attachEvent('on' + evType, fn); return r;}
else { elm['on' + evType] = fn;}
}
function removeEvent(obj, evType, fn, useCapture){ if (obj.removeEventListener){ obj.removeEventListener(evType, fn, useCapture); return true;} else if (obj.detachEvent){ var r = obj.detachEvent("on"+evType, fn); return r;} else { alert("Handler could not be removed");}
}
function format_colour(colour)
{ var returnColour = "#ffffff"; if(colour != "" && colour != "transparent")
{ if(colour.substr(0, 3) == "rgb")
{ returnColour = rgb2Hex(colour);}
else if(colour.length == 4)
{ returnColour = "#" + colour.substring(1, 2) + colour.substring(1, 2) + colour.substring(2, 3) + colour.substring(2, 3) + colour.substring(3, 4) + colour.substring(3, 4);}
else
{ returnColour = colour;}
}
return returnColour;}
function get_style(obj, property, propertyNS)
{ try
{ if(obj.currentStyle)
{ var returnVal = eval("obj.currentStyle." + property);}
else
{ if(isSafari && obj.style.display == "none")
{ obj.style.display = ""; var wasHidden = true;}
var returnVal = document.defaultView.getComputedStyle(obj, '').getPropertyValue(propertyNS); if(isSafari && wasHidden)
{ obj.style.display = "none";}
}
}
catch(e)
{ }
return returnVal;}
function getElementsByClass(searchClass, node, tag)
{ var classElements = new Array(); if(node == null)
node = document; if(tag == null)
tag = '*'; var els = node.getElementsByTagName(tag); var elsLen = els.length; var pattern = new RegExp("(^|\s)"+searchClass+"(\s|$)"); for (i = 0, j = 0; i < elsLen; i++)
{ if(pattern.test(els[i].className))
{ classElements[j] = els[i]; j++;}
}
return classElements;}
function newCurvyError(errorMessage)
{ return new Error("curvyCorners Error:\n" + errorMessage)
}

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body {
background-color: #2F30EE;
font-family: "Georgia", sans-serif;
font-size: 16px;
line-height: 1.6em;
padding: 1.6em 0 0 0;
color: #eee;
}
h1, h2, h3, h4, h5, h6 {
color: #FFEDFA;
}
h1 {
font-family: sans-serif;
font-weight: normal;
font-size: 4em;
line-height: 0.8em;
letter-spacing: -0.1ex;
margin: 5px;
}
li {
padding: 0;
margin: 0;
list-style-type: square;
}
a {
color: #99f;
font-weight: normal;
text-decoration: underline;
}
blockquote {
font-size: 90%;
font-style: italic;
border-left: 1px solid #eee;
padding-left: 1em;
}
.caps {
font-size: 80%;
}
#main {
width: 45em;
padding: 0;
margin: 0 auto;
}
.coda {
text-align: right;
color: #77f;
font-size: smaller;
}
table {
font-size: 90%;
line-height: 1.4em;
color: #ff8;
background-color: #111;
padding: 2px 10px 2px 10px;
border-style: dashed;
}
th {
color: #fff;
}
td {
padding: 2px 10px 2px 10px;
}
.success {
color: #0CC52B;
}
.failed {
color: #E90A1B;
}
.unknown {
color: #995000;
}
pre, code {
font-family: monospace;
font-size: 90%;
line-height: 1.4em;
color: #ff8;
background-color: #111;
padding: 2px 10px 2px 10px;
}
.comment { color: #aaa; font-style: italic; }
.keyword { color: #eff; font-weight: bold; }
.punct { color: #eee; font-weight: bold; }
.symbol { color: #0bb; }
.string { color: #6b4; }
.ident { color: #ff8; }
.constant { color: #66f; }
.regex { color: #ec6; }
.number { color: #F99; }
.expr { color: #227; }
#version {
float: right;
text-align: right;
font-family: sans-serif;
font-weight: normal;
background-color: #ff8;
color: #66f;
padding: 15px 20px 10px 20px;
margin: 0 auto;
margin-top: 15px;
border: 3px solid #66f;
}
#version .numbers {
display: block;
font-size: 4em;
line-height: 0.8em;
letter-spacing: -0.1ex;
}
#version a {
text-decoration: none;
}
.clickable {
cursor: pointer;
cursor: hand;
}

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// <%= title %>
var version = <%= version.to_json %>;
<%= body %>

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<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN"
"http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en" lang="en">
<head>
<link rel="stylesheet" href="stylesheets/screen.css" type="text/css" media="screen" />
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>
<%= title %>
</title>
<script src="javascripts/rounded_corners_lite.inc.js" type="text/javascript"></script>
<style>
</style>
<script type="text/javascript">
window.onload = function() {
settings = {
tl: { radius: 10 },
tr: { radius: 10 },
bl: { radius: 10 },
br: { radius: 10 },
antiAlias: true,
autoPad: true,
validTags: ["div"]
}
var versionBox = new curvyCorners(settings, document.getElementById("version"));
versionBox.applyCornersToAll();
}
</script>
</head>
<body>
<div id="main">
<h1><%= title %></h1>
<div id="version" class="clickable" onclick='document.location = "<%= download %>"; return false'>
Get Version
<a href="<%= download %>" class="numbers"><%= version %></a>
</div>
<%= body %>
<p class="coda">
<a href="mailto:drnicwilliams@gmail.com">Dr Nic</a>, <%= modified.pretty %><br>
Theme extended from <a href="http://rb2js.rubyforge.org/">Paul Battley</a>
</p>
</div>
<script src="http://www.google-analytics.com/urchin.js" type="text/javascript">
</script>
<script type="text/javascript">
_uacct = "UA-567811-2";
urchinTracker();
</script>
</body>
</html>

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// Announcement JS file
var version = "1.1.0";
MagicAnnouncement.show('compositekeys', version);

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h1. Announcement JS file
MagicAnnouncement.show('compositekeys', version);

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// Version JS file
var version = "1.1.0";
document.write(" - " + version);

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h1. Version JS file
document.write(" - " + version);