[geary] Avoid database error when adding attachments

[Jim Nelson <jnelson src gnome org>]

commit ee7efd3a93eb3e051990bca45014255e21dc978a
Author: Jim Nelson <jim yorba org>
Date:   Tue Jan 13 13:51:28 2015 -0800

    Avoid database error when adding attachments
    
    do_save_attachments() is called by schema update 22, which is prior
    to when DeleteAttachmentFileTable was introduced (in update 24).
    Ignore error if cannot remove from that table, i.e. it doesn't exist
    yet.

 src/engine/imap-db/imap-db-folder.vala |   20 +++++++++++++-------
 1 files changed, 13 insertions(+), 7 deletions(-)
---
diff --git a/src/engine/imap-db/imap-db-folder.vala b/src/engine/imap-db/imap-db-folder.vala
index 422c395..e1b5abe 100644
--- a/src/engine/imap-db/imap-db-folder.vala
+++ b/src/engine/imap-db/imap-db-folder.vala
@@ -1990,13 +1990,19 @@ private class Geary.ImapDB.Folder : BaseObject, Geary.ReferenceSemantics {
                 attachment_id, filename);
             
             // On the off-chance this is marked for deletion, unmark it
-            stmt = cx.prepare("""
-                DELETE FROM DeleteAttachmentFileTable
-                WHERE filename = ?
-            """);
-            stmt.bind_string(0, saved_file.get_path());
-            
-            stmt.exec(cancellable);
+            try {
+                stmt = cx.prepare("""
+                    DELETE FROM DeleteAttachmentFileTable
+                    WHERE filename = ?
+                """);
+                stmt.bind_string(0, saved_file.get_path());
+                
+                stmt.exec(cancellable);
+            } catch (Error err) {
+                debug("Unable to delete from DeleteAttachmentFileTable: %s", err.message);
+                
+                // not a deal-breaker, fall through
+            }
             
             debug("Saving attachment to %s", saved_file.get_path());