#!/usr/local/bin/oldperl
#
# EXDStart: This program is the entry point to the ExpressDB web interface
#
# It does a select on the EDS table and gives the user a choice of which
# one to view.
#
# Copyright (c) 1998, 1999 by John Aach and the President and Fellows of Harvard University
# Created 12/03/98-12/09/98 by John Aach
# Modified: 01/05/99 - cosmetics; use $DIRECTORY for HREF hotlinks and ACTIONs; added
# DB Availability Check
#
# Modified: 01/07/99 - put out EDSes in alphabetical order by EDSName
# modified: 02/15/99 - implemented subnet level security on EDS presentation
# modified: 07/15/99 - put in help hotlinks
# modified: 09/02/99 by Wayne Rindone to handle all organisms
# modified: 11/2000 by Wayne Rindone to download available data files
# modified: 08/07/01 by Wayne Rindone to handle Aventis security class
$MODULE = "EXDStart";
use Sybase::DBlib;
$SUCCEED = 1;
$FAIL = 0;
use FileHandle;
autoflush STDOUT 1; # Set up STDOUT for autoflush
use EXDutilities;
use EXDGetSession;
use EXDDBAvailabilityCheck;
use EXDDisplayEDSdata;
# print out header info, including Javascript procedure to save cookie
print <<_HTML0
Content-type: text/html
ExpressDB RNA Expression Database
_HTML0
;
# Get Sybase session
$dbh = EXDGetSession->Get("ExpressDBGuest","ExpressDBGuest", "ExpressDBecoli");
#
# DB Availability check
#
EXDDBAvailabilityCheck->Perform($dbh);
# Do a select on the EDS database and get back EDSName, EDSNo, and
# short description information
SelectEDS($dbh,\@EDSName,\@EDSNo, \@EDSShortDescrip);
# set up variables for HTML page
print <<_HTML1
Welcome to the ExpressDB RNA Expression Database
E. coli Data Series
The ExpressDB database is a collection of RNA expression datasets created at the
Church Labs and at other laboratories. You can query the database for measures of
interest and for selections of ORFs and other features.
You must use a Javascript 1.2 enabled web browser to use this application such as
Internet Explorer 4.0+ or Netscape Navigator 4.0+
The page link shown in the Downloads column for some data sets is
a link to a page from which you can download data files and information files
associated with that data set.
If there is a file link in the Downloads column, it is a direct link
to a single tab-delimited file containing all the data in that data set. Right click on
the file link and choose the Save Link As (Netscape) or Save Target As (Internet Explorer) option on the menu that appears.
When the word none appears in the Downloads column, this means that we have
not yet moved files for that data set into place for downloading.