Tidy context generation.

Signed-off-by: Chris Lamb <[email protected]>

django_slack/api.py

@@ -10,12 +10,7 @@
 
 def slack_message(template, context=None, attachments=None, fail_silently=app_settings.FAIL_SILENTLY):
     data = {}
-
-    # The context passed into each template.
-    context_base = {'settings': settings}
-    # Update this with the passed in context, if provided.
-    if context is not None:
-        context_base.update(context)
+    context = dict(context or {}, settings=settings)
 
     for k, v in {
         'text': {
@@ -60,12 +55,10 @@ def slack_message(template, context=None, attachments=None, fail_silently=app_se
         # Render template if necessary
         if v.get('render', True):
             try:
-                # Create a context just for this template.
-                temp_context = {
-                    'django_slack': 'django_slack/%s' % k,
-                }
-                temp_context.update(context_base)
-                val = render_to_string(template, temp_context).strip().encode('utf8', 'ignore')
+                val = render_to_string(template, dict(
+                    context,
+                    django_slack='django_slack/%s' % k,
+                )).strip().encode('utf8', 'ignore')
             except Exception:
                 if fail_silently:
                     return