From: Michael Orlitzky <michael@orlitzky.com>
Date: Thu, 11 Feb 2010 00:49:50 +0000 (-0500)
Subject: Flatten the SQL result set so that the array difference actually works.
X-Git-Tag: 0.0.1~152
X-Git-Url: https://gitweb.michael.orlitzky.com/?a=commitdiff_plain;h=7643bd3ebfe3d4aa8a56679c16e313ea9250f47e;p=mailshears.git

Flatten the SQL result set so that the array difference actually works.
Modified the SQL query to select only those accounts which are being delivered locally.
---

diff --git a/src/postfixadmin_db.rb b/src/postfixadmin_db.rb
index e30c89c..7998bfe 100644
--- a/src/postfixadmin_db.rb
+++ b/src/postfixadmin_db.rb
@@ -30,16 +30,21 @@ class PostfixadminDb
                                   @db_name,
                                   @db_user,
                                   @db_pass)
-      
-      sql_query = 'SELECT address FROM alias;'
+
+      # If address = goto, then the alias basically says, "really
+      # deliver to that address; it's not an alias."
+      sql_query = 'SELECT address FROM alias WHERE address = goto;'
       result = connection.query(sql_query)
       connection.close()
     rescue PGError => e
       # But pretend like we're database-agnostic in case we ever are.
       raise DatabaseError.new(e)
     end
-    
-    return result
+
+    # The database query returns an array of rows. Since we only asked
+    # for one column (address), we can flatten the result into an
+    # array of addresses.
+    return result.flatten
   end
   
 end