Improved error handling of channel streaming.

app/models/channel.rb

@@ -142,7 +142,8 @@ stream all accounts
       current_channels = []
       channels = Channel.where('active = ? AND area LIKE ?', true, '%::Account')
       channels.each do |channel|
-        adapter      = channel.options[:adapter]
+        adapter = channel.options[:adapter]
+        next if adapter.blank?
         driver_class = Object.const_get("Channel::Driver::#{adapter.to_classname}")
         next if !driver_class.respond_to?(:streamable?)
         next if !driver_class.streamable?

app/models/channel/driver/imap.rb

@@ -60,7 +60,7 @@ example
 
 =end
 
-  def fetch (options, channel, check_type = '', verify_string = '')
+  def fetch(options, channel, check_type = '', verify_string = '')
     ssl            = true
     port           = 993
     keep_on_server = false
@@ -224,6 +224,20 @@ example
     @imap.disconnect()
   end
 
+=begin
+
+  Channel::Driver::Imap.streamable?
+
+returns
+
+  true|false
+
+=end
+
+  def self.streamable?
+    false
+  end
+
   private
 
   def already_imported?(message_id, message_meta, count, count_all, keep_on_server)