Make deleting a blog a little easier to recover from

Summary: We currently orphan posts when you delete a blog. Fixes some visibility and permission errors when that happens. Also... should allow you to archive posts.

Test Plan: Delete a blog, visit a post I made, still can see it.

Reviewers: epriestley

Reviewed By: epriestley

Subscribers: Korvin

Maniphest Tasks: T9360

Differential Revision: https://secure.phabricator.com/D14457

src/applications/phame/controller/post/PhamePostViewController.php

@@ -17,9 +17,15 @@ final class PhamePostViewController extends PhamePostController {
     $blog = $post->getBlog();
 
     $crumbs = $this->buildApplicationCrumbs();
-    $crumbs->addTextCrumb(
-      $blog->getName(),
-      $this->getApplicationURI('blog/view/'.$blog->getID().'/'));
+    if ($blog) {
+      $crumbs->addTextCrumb(
+        $blog->getName(),
+        $this->getApplicationURI('blog/view/'.$blog->getID().'/'));
+    } else {
+      $crumbs->addTextCrumb(
+        pht('[No Blog]'),
+        null);
+    }
     $crumbs->addTextCrumb(
       $post->getTitle(),
       $this->getApplicationURI('post/view/'.$post->getID().'/'));

src/applications/phame/query/PhamePostSearchEngine.php

@@ -81,15 +81,20 @@ final class PhamePostSearchEngine
 
     foreach ($posts as $post) {
       $id = $post->getID();
-      $blog = $viewer->renderHandle($post->getBlogPHID())->render();
+      $blog = $post->getBlog();
+      if ($blog) {
+        $blog_name = $viewer->renderHandle($post->getBlogPHID())->render();
+        $blog_name = pht('Blog: %s', $blog_name);
+      } else {
+        $blog_name = pht('[No Blog]');
+      }
       $item = id(new PHUIObjectItemView())
         ->setUser($viewer)
         ->setObject($post)
         ->setHeader($post->getTitle())
         ->setStatusIcon('fa-star')
         ->setHref($this->getApplicationURI("/post/view/{$id}/"))
-        ->addAttribute(
-          pht('Blog: %s', $blog));
+        ->addAttribute($blog_name);
       if ($post->isDraft()) {
         $item->setStatusIcon('fa-star-o grey');
         $item->setDisabled(true);

src/applications/phame/storage/PhamePost.php

@@ -169,6 +169,8 @@ final class PhamePost extends PhameDAO
           return $this->getBlog()->getViewPolicy();
         } else if ($this->getBlog()) {
           return $this->getBlog()->getEditPolicy();
+        } else {
+          return PhabricatorPolicies::POLICY_NOONE;
         }
         break;
       case PhabricatorPolicyCapability::CAN_EDIT: