From 8a599e1c1dca39c4dbfe58caa9bef4a69f3d19ae Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Jonne=20Ha=C3=9F?= <me@mrzyx.de>
Date: Wed, 14 May 2014 18:50:52 +0200
Subject: Use absolute_root more consistently in Reshare

Closes #4956
---
 app/models/reshare.rb       | 41 +++++++++++++----------------------------
 spec/models/reshare_spec.rb | 27 +++++++++++++++++++++++++++
 2 files changed, 40 insertions(+), 28 deletions(-)

diff --git a/app/models/reshare.rb b/app/models/reshare.rb
index da902dc3d..5bb5326d5 100644
--- a/app/models/reshare.rb
+++ b/app/models/reshare.rb
@@ -29,28 +29,24 @@ class Reshare < Post
     self.root.author.diaspora_handle
   end
 
-  def o_embed_cache
-    self.root ? root.o_embed_cache : super
-  end
-
-  def open_graph_cache
-    self.root ? root.open_graph_cache : super
-  end
+  delegate :o_embed_cache, :open_graph_cache,
+           :message, :nsfw,
+           to: :absolute_root, allow_nil: true
 
   def raw_message
-    self.root ? root.raw_message : super
-  end
-
-  def message
-    absolute_root.message if root.present?
+    absolute_root.try(:raw_message) || super
   end
 
   def mentioned_people
-    self.root ? root.mentioned_people : super
+    absolute_root.try(:mentioned_people) || super
   end
 
   def photos
-    self.root ? root.photos : []
+    absolute_root.try(:photos) || super
+  end
+
+  def address
+    absolute_root.try(:location).try(:address)
   end
 
   def receive(recipient, sender)
@@ -69,21 +65,10 @@ class Reshare < Post
     Notifications::Reshared if root.author == user.person
   end
 
-  def nsfw
-    root.try(:nsfw)
-  end
-
   def absolute_root
-    current = self
-    while( current.is_a?(Reshare) )
-      current = current.root
-    end
-
-    current
-  end
-
-  def address
-    absolute_root.try(:location).try(:address)
+    @absolute_root ||= self
+    @absolute_root = @absolute_root.root while @absolute_root.is_a? Reshare
+    @absolute_root
   end
 
   private
diff --git a/spec/models/reshare_spec.rb b/spec/models/reshare_spec.rb
index 52a484785..63e4295b8 100644
--- a/spec/models/reshare_spec.rb
+++ b/spec/models/reshare_spec.rb
@@ -83,11 +83,38 @@ describe Reshare do
       rs1 = FactoryGirl.build(:reshare, :root=>@sm)
       rs2 = FactoryGirl.build(:reshare, :root=>rs1)
       @rs3 = FactoryGirl.build(:reshare, :root=>rs2)
+      
+     sm = FactoryGirl.create(:status_message, :author => alice.person, :public => true)
+     rs1 = FactoryGirl.create(:reshare, :root => sm)
+     @of_deleted = FactoryGirl.build(:reshare, :root => rs1)
+     sm.destroy
+     rs1.reload
     end
 
     it 'resolves root posts to the top level' do
       @rs3.absolute_root.should == @sm
     end
+
+    it 'can handle deleted reshares' do
+      expect(@of_deleted.absolute_root).to be_nil
+    end
+
+    it 'is used everywhere' do
+      expect(@rs3.message).to eq @sm.message
+      expect(@of_deleted.message).to be_nil
+      expect(@rs3.photos).to eq @sm.photos
+      expect(@of_deleted.photos).to be_empty
+      expect(@rs3.o_embed_cache).to eq @sm.o_embed_cache
+      expect(@of_deleted.o_embed_cache).to be_nil
+      expect(@rs3.open_graph_cache).to eq @sm.open_graph_cache
+      expect(@of_deleted.open_graph_cache).to be_nil
+      expect(@rs3.mentioned_people).to eq @sm.mentioned_people
+      expect(@of_deleted.mentioned_people).to be_empty
+      expect(@rs3.nsfw).to eq @sm.nsfw
+      expect(@of_deleted.nsfw).to be_nil
+      expect(@rs3.address).to eq @sm.location.try(:address)
+      expect(@of_deleted.address).to be_nil
+    end
   end
 
   describe "XML" do
-- 
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