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SF.net SVN: ledger-smb: [56] trunk



Revision: 56
          http://svn.sourceforge.net/ledger-smb/?rev=56&view=rev
Author:   einhverfr
Date:     2006-09-09 21:05:56 -0700 (Sat, 09 Sep 2006)

Log Message:
-----------
Added a script which will notify individuals of short parts via email in 
nearly real time

Modified Paths:
--------------
    trunk/sql/Pg-upgrade-2.6.17-2.6.18.sql

Added Paths:
-----------
    trunk/utils/
    trunk/utils/notify_short/
    trunk/utils/notify_short/GPL.txt
    trunk/utils/notify_short/README
    trunk/utils/notify_short/config.pl
    trunk/utils/notify_short/listener.pl

Modified: trunk/sql/Pg-upgrade-2.6.17-2.6.18.sql
===================================================================
--- trunk/sql/Pg-upgrade-2.6.17-2.6.18.sql	2006-09-10 03:21:02 UTC (rev 55)
+++ trunk/sql/Pg-upgrade-2.6.17-2.6.18.sql	2006-09-10 04:05:56 UTC (rev 56)
@@ -10,5 +10,27 @@
 ALTER TABLE acc_trans ALTER COLUMN entry_id SET DEFAULT nextval('acctrans_entry_id_seq');
 UPDATE acc_trans SET entry_id = nextval('acctrans_entry_id_seq');
 ALTER TABLE acc_trans ADD PRIMARY key (entry_id);
+
+
+-- The query rewrite rule necessary to notify the email app that a new report
+-- needs to be sent to the designated administrator.
+-- By Chris Travers
+-- ..hidden..
+-- Licensed under the GNU GPL 2.0 or later at your option.  See accompanying
+-- GPL.txt
+
+CREATE OR REPLACE FUNCTION trigger_parts_short() RETURNS TRIGGER
+AS
+'
+BEGIN
+  IF NEW.onhand >= NEW.rop THEN
+    NOTIFY parts_short;
+  END IF;
+  RETURN NEW;
+END;
+' LANGUAGE PLPGSQL;
+
+CREATE TRIGGER parts_short AFTER UPDATE ON parts 
+FOR EACH ROW EXECUTE PROCEDURE trigger_parts_short();
 COMMIT;
 

Added: trunk/utils/notify_short/GPL.txt
===================================================================
--- trunk/utils/notify_short/GPL.txt	                        (rev 0)
+++ trunk/utils/notify_short/GPL.txt	2006-09-10 04:05:56 UTC (rev 56)
@@ -0,0 +1,235 @@
+		    GNU GENERAL PUBLIC LICENSE
+		       Version 2, June 1991
+
+ Copyright (C) 1989, 1991 Free Software Foundation, Inc.
+                       59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+ Everyone is permitted to copy and distribute verbatim copies
+ of this license document, but changing it is not allowed.
+
+			    Preamble
+
+  The licenses for most software are designed to take away your
+freedom to share and change it.  By contrast, the GNU General Public
+License is intended to guarantee your freedom to share and change free
+software--to make sure the software is free for all its users.  This
+General Public License applies to most of the Free Software
+Foundation's software and to any other program whose authors commit to
+using it.  (Some other Free Software Foundation software is covered by
+the GNU Library General Public License instead.)  You can apply it to
+your programs, too.
+
+  When we speak of free software, we are referring to freedom, not
+price.  Our General Public Licenses are designed to make sure that you
+have the freedom to distribute copies of free software (and charge for
+this service if you wish), that you receive source code or can get it
+if you want it, that you can change the software or use pieces of it
+in new free programs; and that you know you can do these things.
+
+  To protect your rights, we need to make restrictions that forbid
+anyone to deny you these rights or to ask you to surrender the rights.
+These restrictions translate to certain responsibilities for you if you
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+
+  For example, if you distribute copies of such a program, whether
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+(2) offer you this license which gives you legal permission to copy,
+distribute and/or modify the software.
+
+  Also, for each author's protection and ours, we want to make certain
+that everyone understands that there is no warranty for this free
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+  The precise terms and conditions for copying, distribution and
+modification follow.
+
+		    GNU GENERAL PUBLIC LICENSE
+   TERMS AND CONDITIONS FOR COPYING, DISTRIBUTION AND MODIFICATION
+
+  0. This License applies to any program or other work which contains
+a notice placed by the copyright holder saying it may be distributed
+under the terms of this General Public License.  The "Program", below,
+refers to any such program or work, and a "work based on the Program"
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+along with the Program.
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+You may charge a fee for the physical act of transferring a copy, and
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+  2. You may modify your copy or copies of the Program or any portion
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+You should also get your employer (if you work as a programmer) or your
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+necessary.  Here is a sample; alter the names:
+
+  Yoyodyne, Inc., hereby disclaims all copyright interest in the program
+  `Gnomovision' (which makes passes at compilers) written by James Hacker.
+
+  <signature of Ty Coon>, 1 April 1989
+  Ty Coon, President of Vice
+
+This General Public License does not permit incorporating your program into
+proprietary programs.  If your program is a subroutine library, you may
+consider it more useful to permit linking proprietary applications with the
+library.  If this is what you want to do, use the GNU Library General
+Public License instead of this License.
+

Added: trunk/utils/notify_short/README
===================================================================
--- trunk/utils/notify_short/README	                        (rev 0)
+++ trunk/utils/notify_short/README	2006-09-10 04:05:56 UTC (rev 56)
@@ -0,0 +1,14 @@
+Short Parts Notifier for LedgerSMB
+By Chris Travers, Metatron Technology Consulting
+
+To use this software, edit the config.pl so that you can connect to the 
+database.  Then you can run listener.pl and it will periodically check to see
+if new there are parts that have become short through transactions.
+
+At the moment, the report is triggered when an AR or AP invoice occurs and a 
+part affected by the transaction is lower than the ROP.  When this happens, a
+Notify is sent from the database, and the application prepares the report on its
+next cycle.  Note that although the creation of a new part will not cause it to
+trigger the report, the new part will appear on the report on the next run.
+
+Any feedback, improvements, etc. are welcome.

Added: trunk/utils/notify_short/config.pl
===================================================================
--- trunk/utils/notify_short/config.pl	                        (rev 0)
+++ trunk/utils/notify_short/config.pl	2006-09-10 04:05:56 UTC (rev 56)
@@ -0,0 +1,56 @@
+#!/usr/bin/perl
+
+use vars qw($email_to $cc_to $email_from $sendmail $database $db_user 
+	$db_passwd $template_head $template_foot);
+
+# The address to send the mail to.  On UNIX systems, multiple addresses can be
+# separated by a space.
+$email_to = '..hidden..';
+
+
+# The email address this email is from:
+$email_from = '..hidden..';
+
+# The comamnd for sending the email:
+$sendmail = "sendmail -f$email_from $email_to";
+
+# The database containing SQL-Ledger
+$database = "ledger-smb";
+
+# The user to connect with.  This user only requires select permission to the
+# parts table.
+
+$db_user = "ls-short";
+
+# How long between checking for Notify events?  In seconds
+$cycle_delay = 60;
+
+# The password for the db user:
+$db_passwd = "mypasswd";
+
+$template_top =
+"From: $email_from
+Subject: Parts Short Notice
+
+Hi.  This is the SL-Short listener.  You are receiving this message because
+a recently issued invoice has reduced the number of onhand items to a level 
+below its re-order point (ROP).  Please see the below report for items currently
+at or below their ROP.
+
+Partnumber         Description                          Onhand    ROP
+---------------------------------------------------------------------
+";
+
+$template_foot = "
+Thank you for your attention.";
+
+format MAIL_TOP =
+Partnumber         Description                          Onhand    ROP
+---------------------------------------------------------------------
+.
+format MAIL =
+@<<<<<<<<<<<<<    @<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<< @>>>>  @>>>>>
+$partnumber,      $description,                         $avail,$rop
+.
+1;
+

Added: trunk/utils/notify_short/listener.pl
===================================================================
--- trunk/utils/notify_short/listener.pl	                        (rev 0)
+++ trunk/utils/notify_short/listener.pl	2006-09-10 04:05:56 UTC (rev 56)
@@ -0,0 +1,46 @@
+#!/usr/bin/perl
+
+# This is the SL-Short listener.  It listens for the "parts_short" signal and
+# when the signal comes in, prepares a list of short parts to be sent to
+# at least one person.
+#
+# By Chris Travers, Metatron Technology Consulting
+# ..hidden..
+#
+# Released under the GNU GPL v2.0 or later.  See included GPL.txt for more 
+# information.
+
+require "config.pl";
+
+use DBI;
+my $dsn = "dbi:Pg:dbname=$database";
+my $dbh = DBI->connect($dsn, $db_user, $db_passwd, 
+	{ AutoCommit => 1,
+	PrintError => 0,
+	RaiseError => 1, }
+);
+
+my $sth;
+
+$dbh->do("LISTEN parts_short");
+while (1){ # loop infinitely
+  if ($dbh->func ('pg_notifies')){
+    &on_notify;
+  }
+  sleep $cycle_delay;
+}
+sub on_notify {
+  open (MAIL, "| $sendmail");
+  $sth = $dbh->prepare("
+	SELECT partnumber, description, onhand, rop FROM parts
+	WHERE onhand <= rop
+  ");
+  $sth->execute;
+  print MAIL $template_top;
+  while (($partnumber, $description, $avail, $rop) = $sth->fetchrow_array){
+    write MAIL;
+  }
+  print MAIL $template_foot;
+  close MAIL;
+}
+


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