From d42a2d3c79279fb9745a159cf9d04397c5386b11 Mon Sep 17 00:00:00 2001
From: Martin Mahner <martin@mahner.org>
Date: Wed, 20 Mar 2013 12:57:23 +0100
Subject: [PATCH] Don't display the compare button if the snippet has no
 replies. Fixes issue #6.

---
 dpaste/models.py                             | 4 ++++
 dpaste/templates/dpaste/snippet_details.html | 2 ++
 2 files changed, 6 insertions(+)

diff --git a/dpaste/models.py b/dpaste/models.py
index b060cca..a055101 100644
--- a/dpaste/models.py
+++ b/dpaste/models.py
@@ -29,6 +29,10 @@ class Snippet(models.Model):
     def content_splitted(self):
         return self.content_highlighted.splitlines()
 
+    @property
+    def is_single(self):
+        return self.is_root_node() and not self.get_children()
+
     def save(self, *args, **kwargs):
         if not self.pk:
             self.published = datetime.datetime.now()
diff --git a/dpaste/templates/dpaste/snippet_details.html b/dpaste/templates/dpaste/snippet_details.html
index 2426587..5433647 100644
--- a/dpaste/templates/dpaste/snippet_details.html
+++ b/dpaste/templates/dpaste/snippet_details.html
@@ -52,7 +52,9 @@
         {% if snippet.pk|in_list:request.session.snippet_list %}
         <a class="btn" href="{% url "snippet_delete" snippet.secret_id %}" onclick="return confirm('{% trans "Really delete this snippet?" %}');"><i class="icon-trash"></i> {% trans "Delete Now" %}</a>
         {% endif %}
+        {% if not snippet.is_single %}
         <a class="btn snippet-diff-trigger" href="#snippet-diff"><i class="icon-search"></i> {% trans "Compare Snippets" %}</a>
+        {% endif %}
         <a class="btn" href="{% url "snippet_details_raw" snippet.secret_id %}"><i class="icon-align-left"></i> {% trans "View Raw" %}</a>
     </div>