From bd75961380ef07c2ba0ab5412e4326a197fd40c5 Mon Sep 17 00:00:00 2001
From: Michael Orlitzky <michael@orlitzky.com>
Date: Mon, 20 Jan 2014 02:08:10 -0500
Subject: [PATCH] Use the timestamp pickler in TSN.XML.News. Set ON DELETE
 CASCADE where possible in TSN.XML.News.

---
 src/TSN/XML/News.hs | 20 ++++++++++++++++----
 1 file changed, 16 insertions(+), 4 deletions(-)

diff --git a/src/TSN/XML/News.hs b/src/TSN/XML/News.hs
index 20b3a1c..4a59859 100644
--- a/src/TSN/XML/News.hs
+++ b/src/TSN/XML/News.hs
@@ -24,6 +24,7 @@ where
 
 -- System imports.
 import Data.Data ( Data, constrFields, dataTypeConstrs, dataTypeOf )
+import Data.Time.Clock ( UTCTime )
 import Data.List.Utils ( join, split )
 import Data.Tuple.Curry ( uncurryN )
 import Data.Typeable ( Typeable )
@@ -55,6 +56,7 @@ import TSN.Codegen (
   tsn_codegen_config,
   tsn_db_field_namer ) -- Used in a test
 import TSN.DbImport ( DbImport(..), ImportResult(..), run_dbmigrate )
+import TSN.Picklers ( xp_time_stamp )
 import TSN.XmlImport ( XmlImport(..) )
 import Xml ( FromXml(..), pickle_unpickle, unpickleable )
 
@@ -150,7 +152,7 @@ data Message =
     xml_editor :: Maybe String,
     xml_text :: Maybe String,     -- Text and continue seem to show up in pairs,
     xml_continue :: Maybe String, -- either both present or both missing.
-    xml_time_stamp :: String }
+    xml_time_stamp :: UTCTime }
   deriving (Eq, Show)
 
 
@@ -166,7 +168,8 @@ data News =
     db_sms :: String,
     db_editor :: Maybe String,
     db_text :: Maybe String,
-    db_continue :: Maybe String }
+    db_continue :: Maybe String,
+    db_time_stamp :: UTCTime }
   deriving (Data, Eq, Show, Typeable)
 
 
@@ -185,7 +188,8 @@ instance FromXml Message where
                                 db_sms = xml_sms,
                                 db_editor = xml_editor,
                                 db_text = xml_text,
-                                db_continue = xml_continue }
+                                db_continue = xml_continue,
+                                db_time_stamp = xml_time_stamp }
 
 -- | This lets us call 'insert_xml' on a 'Message'.
 --
@@ -279,8 +283,12 @@ mkPersist tsn_codegen_config [groundhog|
       fields:
         - name: news_NewsTeam0 # Default created by mkNormalFieldName
           dbName: news_id
+          reference:
+            onDelete: cascade
         - name: news_NewsTeam1 # Default created by mkNormalFieldName
           dbName: news_teams_id
+          reference:
+            onDelete: cascade
 
 - entity: News_NewsLocation
   dbName: news__news_locations
@@ -289,8 +297,12 @@ mkPersist tsn_codegen_config [groundhog|
       fields:
         - name: news_NewsLocation0 # Default created by mkNormalFieldName
           dbName: news_id
+          reference:
+            onDelete: cascade
         - name: news_NewsLocation1 # Default created by mkNormalFieldName
           dbName: news_locations_id
+          reference:
+            onDelete: cascade
 |]
 
 
@@ -353,7 +365,7 @@ pickle_message =
               (xpOption (xpElem "Editor" xpText))
               (xpOption (xpElem "text" xpText))
               pickle_continue
-              (xpElem "time_stamp" xpText)
+              (xpElem "time_stamp" xp_time_stamp)
   where
     from_tuple = uncurryN Message
     to_tuple m = (xml_xml_file_id m, -- Verbose,
-- 
2.44.2