Add some debug enter/exit tracing. Add some more argument checking.

git-svn-id: svn+ssh://svn.gnucash.org/repo/gnucash/trunk@18014 57a11ea4-9604-0410-9ed3-97b8803252fd

src/backend/sql/gnc-backend-sql.c

@@ -449,6 +449,9 @@ gnc_sql_begin_edit( GncSqlBackend *be, QofInstance *inst )
 {
 	g_return_if_fail( be != NULL );
 	g_return_if_fail( inst != NULL );
+
+    ENTER( " " );
+	LEAVE( "" );
 }
 
 void
@@ -456,6 +459,9 @@ gnc_sql_rollback_edit( GncSqlBackend *be, QofInstance *inst )
 {
 	g_return_if_fail( be != NULL );
 	g_return_if_fail( inst != NULL );
+
+    ENTER( " " );
+	LEAVE( "" );
 }
 
 static void

src/backend/sql/gnc-transaction-sql.c

@@ -735,6 +735,9 @@ compile_split_query( GncSqlBackend* be, QofQuery* pQuery )
 		g_free( query_sql );
 		query_info->has_been_run = FALSE;
 		query_info->acct = xaccAccountLookup( acct_guid, be->primary_book );
+		if( query_info->acct == NULL ) {
+			PWARN( "Unable to find account with guid='%s'\n", guid_buf );
+		}
 
 		g_free( subquery_sql );
 	}
@@ -749,6 +752,7 @@ run_split_query( GncSqlBackend* be, gpointer pQuery )
 
 	g_return_if_fail( be != NULL );
 	g_return_if_fail( pQuery != NULL );
+	g_return_if_fail( query_info->acct != NULL );
 
 	// When the query to load all splits for the account has been run, set the
 	// mark so that this account's query is not reexecuted.