+ (* General email notification of page edits. Send an email to
+ * anyone in the page_emails table who has a confirmed address
+ * and who hasn't received an email already today.
+ *)
+ let sth = dbh#prepare_cached "select email, opt_out from page_emails
+ where hostid = ? and url = ?
+ and pending is null
+ and last_sent < current_date" in
+ sth#execute [`Int hostid; `String url];
+
+ let addrs = sth#map (function [`String email; `String opt_out] ->
+ email, opt_out
+ | _ -> assert false) in
+
+ if addrs <> [] then (
+ (* Construct the email. *)
+ template_email#set "hostname" hostname;
+ template_email#set "page" url;
+
+ let subject =
+ "Site notice: " ^ hostname ^ "/" ^ url ^ " has been updated" in
+
+ (* Send each email individually (they all have different opt out
+ * links).
+ *)
+ List.iter (fun (to_addr, opt_out) ->
+ template_email#set "opt_out" opt_out;
+ let body = template_email#to_string in
+ Sendmail.send_mail ~subject ~to_addr:[to_addr] ~body ())
+ addrs
+ );
+
+ (* Update the database to record when these emails were sent. *)
+ let sth = dbh#prepare_cached "update page_emails
+ set last_sent = current_date
+ where hostid = ? and url = ?
+ and pending is null" in
+ sth#execute [`Int hostid; `String url];
+
+ dbh#commit ();
+