[folks] Manually iterate through personas in remove_individual().

[Travis Reitter <treitter src gnome org>]

commit e6edfc2cfd33b4f4309e5ae87f6e38de7e62f4f6
Author: Philip Withnall <philip withnall collabora co uk>
Date:   Fri Jul 23 12:21:22 2010 +0100

    Manually iterate through personas in remove_individual().
    
    This lets us properly yield upon remove_persona().

 folks/individual-aggregator.vala |   10 ++++++++--
 1 files changed, 8 insertions(+), 2 deletions(-)
---
diff --git a/folks/individual-aggregator.vala b/folks/individual-aggregator.vala
index 8557de7..a2641a0 100644
--- a/folks/individual-aggregator.vala
+++ b/folks/individual-aggregator.vala
@@ -319,8 +319,14 @@ public class Folks.IndividualAggregator : Object
    */
   public async void remove_individual (Individual individual) throws GLib.Error
     {
-      foreach (unowned Persona persona in individual.personas)
-        yield persona.store.remove_persona (persona);
+      /* We have to iterate manually since using foreach() requires a sync
+       * lambda function, meaning we can't yield on the remove_persona() call */
+      unowned GLib.List<unowned Persona> i;
+      for (i = individual.personas; i != null; i = i.next)
+        {
+          unowned Persona persona = (Persona) i.data;
+          yield persona.store.remove_persona (persona);
+        }
     }
 
   /**