check for an existing texture when building the page, and display a message when none is set. fixes #43

pyweb/mumble/locale/de/LC_MESSAGES/django.po

@@ -267,16 +267,20 @@ msgstr "Benutzertextur"
 
 msgid ""
 "\n"
-"          You can upload an image that you would like to use as your user texture here.<br />\n"
-"          Your current texture is:<br />\n"
+"          You can upload an image that you would like to use as your user texture here.\n"
 "        "
 msgstr ""
 "\n"
 "          Du kannst hier ein Bild hochladen, das als deine Benutzertextur "
-"angezeigt werden soll.<br />\n"
-"          Deine momentane Textur ist diese:<br />\n"
+"angezeigt werden soll.\n"
 "        "
 
+msgid "Your current texture is"
+msgstr "Deine momentane Textur ist diese"
+
+msgid "You don't currently have a texture set"
+msgstr "Du hast momentan keine Textur gesetzt"
+
 msgid "\n"
 "          Hint: The texture image <b>needs</b> to be 600x60 in size. If "
 "you upload an image with\n"

pyweb/mumble/models.py

@@ -427,6 +427,14 @@ class MumbleUser( models.Model ):
 		"""Read an image from the infile and install it as the user's texture."""
 		self.server.ctl.setTexture(self.server.srvid, self.mumbleid, infile)
 	
+	def hasTexture( self ):
+		try:
+			self.getTexture();
+		except ValueError:
+			return False;
+		else:
+			return True;
+	
 	# Deletion handler
 	
 	@staticmethod

template/mumble/mumble.htm

@@ -59,10 +59,16 @@
       <h2>{% trans "User Texture" %}</h2>
       <p>
         {% blocktrans with DBaseObject.id as serverid %}
-          You can upload an image that you would like to use as your user texture here.<br />
-          Your current texture is:<br />
-        {% endblocktrans %}
+          You can upload an image that you would like to use as your user texture here.
+        {% endblocktrans %}<br />
+	<br />
+	{% if MumbleAccount.hasTexture %}
+          {% trans "Your current texture is" %}:<br />
           <img src="{% url mumble.views.showTexture DBaseObject.id MumbleAccount.id %}" alt="user texture" /><br />
+	{% else %}
+	  {% trans "You don't currently have a texture set" %}.<br />
+	{% endif %}
+	<br />
         {% blocktrans with DBaseObject.id as serverid %}
           Hint: The texture image <b>needs</b> to be 600x60 in size. If you upload an image with
           a different size, it will be resized accordingly.<br />