Using .config instead of .full_config, as full_config was occasionall…

…y returning a hash of strings instead of a hash of symbols, whereas .config seems to not exhibit this behaviour.

app/models/article.rb

@@ -145,7 +145,7 @@ def get_archive_hash
 
     private 
       def specific_date_function
-        if Merb::Orms::DataMapper.full_config[Merb.environment.to_s]["adapter"] == "sqlite3"
+        if Merb::Orms::DataMapper.config[:adapter] == "sqlite3"
           "strftime('%Y', published_at) as year, strftime('%m', published_at) as month"
         else
           "extract(year from published_at) as year, extract(month from published_at) as month"