From 0d410605f90c01d70f1a8f66bf5c22507801959a Mon Sep 17 00:00:00 2001
From: Thomas Keller <me@thomaskeller.biz>
Date: Tue, 6 Dec 2011 08:38:40 +0100
Subject: [PATCH] Implement deletion of resource revisions.

---
 src/IDF/Views/Wiki.php                        | 38 ++++++++++++++
 .../templates/idf/wiki/deleteResourceRev.html | 49 +++++++++++++++++++
 2 files changed, 87 insertions(+)
 create mode 100644 src/IDF/templates/idf/wiki/deleteResourceRev.html

diff --git a/src/IDF/Views/Wiki.php b/src/IDF/Views/Wiki.php
index f7888c3..d394d43 100644
--- a/src/IDF/Views/Wiki.php
+++ b/src/IDF/Views/Wiki.php
@@ -429,6 +429,44 @@ class IDF_Views_Wiki
                                                $request);
     }
 
+    /**
+     * Remove a revision of a resource.
+     */
+    public $deleteResourceRev_precond = array('IDF_Precondition::accessWiki',
+                                              'IDF_Precondition::projectMemberOrOwner');
+    public function deleteResourceRev($request, $match)
+    {
+        $prj = $request->project;
+        $oldrev = Pluf_Shortcuts_GetObjectOr404('IDF_Wiki_ResourceRevision', $match[2]);
+        $resource = $oldrev->get_wikiresource();
+        $prj->inOr404($resource);
+        if ($oldrev->is_head == true) {
+            return new Pluf_HTTP_Response_NotFound($request);
+        }
+        if ($request->method == 'POST') {
+            $oldrev->delete();
+            $request->user->setMessage(__('The old revision has been deleted.'));
+            $url = Pluf_HTTP_URL_urlForView('IDF_Views_Wiki::viewResource',
+                                            array($prj->shortname, $resource->title));
+            return new Pluf_HTTP_Response_Redirect($url);
+        }
+
+        $title = sprintf(__('Delete Old Revision of %s'), $resource->title);
+        $revision = $resource->get_current_revision();
+        $false = Pluf_DB_BooleanToDb(false, $resource->getDbConnection());
+        $revs = $resource->get_revisions_list(array('order' => 'creation_dtime DESC',
+                                                    'filter' => 'is_head='.$false));
+        return Pluf_Shortcuts_RenderToResponse('idf/wiki/deleteResourceRev.html',
+                                               array(
+                                                     'page_title' => $title,
+                                                     'resource' => $resource,
+                                                     'oldrev' => $oldrev,
+                                                     'rev' => $revision,
+                                                     'revs' => $revs,
+                                                     ),
+                                               $request);
+    }
+
     /**
      * Update a documentation page.
      */
diff --git a/src/IDF/templates/idf/wiki/deleteResourceRev.html b/src/IDF/templates/idf/wiki/deleteResourceRev.html
new file mode 100644
index 0000000..8523192
--- /dev/null
+++ b/src/IDF/templates/idf/wiki/deleteResourceRev.html
@@ -0,0 +1,49 @@
+{extends "idf/wiki/base.html"}
+{block extraheader}{if $oldrev}<meta name="ROBOTS" content="NOINDEX" />{/if}{/block}
+{block docclass}yui-t3{assign $inResourceView=true}{/block}
+{block body}
+
+{assign $submitter = $oldrev.get_submitter()}{aurl 'url', 'IDF_Views_Wiki::viewResource', array($project.shortname, $resource.title)}
+<div class="old-rev">
+<p>{blocktrans}You are looking at an old revision (<em>{$oldrev.summary}</em>) of the resource 
+<a href="{$url}">{$resource.title}</a>. This revision was created by {$submitter}.{/blocktrans}</p>
+</div>
+<p>{blocktrans}If you delete this old revision, it will be removed from the database and <strong>you will not be able to recover it</strong>.{/blocktrans}</p>
+<form method="post" action=".">
+<table class="form" summary="">
+<tr>
+<td>&nbsp;</td>
+<td><input type="submit" value="{trans 'Delete Revision'}" name="submit" /> | <a href="{url 'IDF_Views_Wiki::viewResource', array($project.shortname, $resource.title)}">{trans 'Cancel'}</a> 
+</td>
+</tr>
+</table>
+</form>
+
+<p class="desc">{$resource.summary}</p>
+
+{assign $preview = $rev.renderRaw()}
+{if $preview == ''}
+  {assign $preview = __('Unable to render preview for this MIME type.')}
+{/if}
+<p class="preview">{$preview|unsafe}</p>
+
+<ul>
+<li>{trans 'File size'}: {$rev.filesize|size}</li>
+<li>{trans 'MIME type'}: {$resource.mime_type}</li>
+<li><a href="{$rev.getRawURL(true)}">{trans 'Download this file'}</a></li>
+</ul>
+{/block}
+
+{/block}
+{block context}
+{assign $submitter = $resource.get_submitter()}
+<p><strong>{trans 'Created:'}</strong> <span class="nobrk">{$resource.creation_dtime|dateago}</span><br /><span class="nobrk">{blocktrans}by {$submitter}{/blocktrans}</span></p>
+{if $rev.creation_dtime != $resource.creation_dtime}<p>{assign $submitter = $rev.get_submitter()}
+<strong>{trans 'Updated:'}</strong> <span class="nobrk">{$rev.creation_dtime|dateago}</span><br /><span class="nobrk">{blocktrans}by {$submitter}{/blocktrans}</span></p>{/if}
+{if $revs.count() > 0}
+<p><strong>{trans 'Old Revisions'}</strong></p>
+<ul>{foreach $revs as $old}
+<li><a href="{url 'IDF_Views_Wiki::viewResource', array($project.shortname, $resource.title), array('rev'=>$old.id)}">{$old.summary}</a></li>
+{/foreach}</ul>
+{/if}
+{/block}