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|
#! /usr/bin/perl -w
# dausql - Display Database Tables on the Localhost
# Copyright (C) 1999 Stefan Hornburg and Dennis Schn
# Authors: Stefan Hornburg <racke@linuxia.net>
# Dennis Schn <dschoen@rio.gt.owl.de>
# Maintainer: Stefan Hornburg <racke@linuxia.net>
# Version: 0.06
# This file is free software; you can redistribute it and/or modify it
# under the terms of the GNU General Public License as published by the
# Free Software Foundation; either version 2, or (at your option) any
# later version.
# This file is distributed in the hope that it will be
# useful, but WITHOUT ANY WARRANTY; without even the implied warranty
# of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
# General Public License for more details.
# You should have received a copy of the GNU General Public License
# along with this file; see the file COPYING. If not, write to the Free
# Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.
use strict;
use CGI::Extratags;
my $cgi = new CGI::Extratags;
use DBIx::CGI;
# GLOBAL VARIABLES
my $max_entries = 500; # Avoid Netscape Crashes
my $dispfunc; # selected diplay routine
my $formfunc; # select form routine
my $editfunc; # selected edit routine
my @supported_drivers= ('Pg','mysql','msql');
# CHECK PARAMETERS AND SELECT FORM AND DISPLAY ROUTINE
if ($cgi -> param ('search_bases')) {
$formfunc = sub { form_bases ($cgi -> param ('driver'))};
}
elsif ($cgi -> param ('search_tables')) {
$formfunc = sub { form_tables ($cgi -> param ('driver'),
$cgi -> param ('base'),
$cgi -> param ('login'),
$cgi -> param ('password'))};
}
elsif ($cgi -> param ('display') && ($cgi -> param ('routine') eq 'View')) {
$formfunc = sub { form_tables ($cgi -> param ('driver'),
$cgi -> param ('base'),
$cgi -> param ('login'),
$cgi -> param ('password'),
$cgi -> param ('table'))};
$dispfunc = sub { disp_table ($cgi -> param ('driver'),
$cgi -> param ('base'),
$cgi -> param ('table'),
$cgi -> param ('login'),
$cgi -> param ('password'),
$cgi -> param ('order'))};
}
elsif ($cgi -> param ('display') && ($cgi -> param ('routine') eq 'Edit')) {
$editfunc = sub { edit_disp_table ()};
}
else {
$formfunc = sub { form_drivers ()};
}
# DISPLAY HTML PAGE
print $cgi -> header ();
print $cgi -> start_html ('-title' => "dausql 0.06",
'-author' => 'racke@linuxia.net and dschoen@rio.gt.owl.de');
print $cgi -> start_form ();
print $cgi -> start_table ();
&$formfunc if $formfunc;
print $cgi -> end_table ();
&$editfunc if $editfunc;
&$dispfunc if $dispfunc;
print $cgi -> end_form ();
print <<'EOF';
<HR><ADDRESS>© 1999 by Stefan Hornburg
<A HREF="mailto:racke@linuxia.net"><racke@linuxia.net></A>
and Dennis Schön
<A HREF="mailto:dschoen@rio.gt.owl.de"><dschoen@rio.gt.owl.de></A><BR>
</ADDRESS><HR>
EOF
print $cgi -> end_html ();
# FORM ROUTINES
# -----------------------------------------------
# FUNCTION: form_drivers
#
# Displays the Form with a popup menu for Drivers
# -----------------------------------------------
sub form_drivers
{
my @drivers;
foreach my $i (DBI->available_drivers) {
if (grep {$_ eq $i} @supported_drivers) {push(@drivers,$i)}
}
print $cgi -> hidden (-name=>'drivers',
-value=>\@drivers);
print $cgi -> row ('Database Driver:',
$cgi -> popup_menu (-name=>'driver',
-values=>\@drivers),
'',
'Login:',
$cgi -> textfield (-name=>'login'),
'',
'Password:',
$cgi -> password_field (-name=>'password'));
print $cgi -> row ('Database:',
$cgi -> textfield (-name=>'base'),
$cgi -> submit (-name=>'search_bases',
-value=>'Search Databases'));
print $cgi -> row ('Table:',
$cgi -> textfield (-name=>'table'),
$cgi -> submit (-name=>'search_tables',
-value=>'Search Tables'));
print $cgi -> row ($cgi -> submit (-name=>'display',
-value=>'Display Table'),
'',
"<p align=right>Select Display routine:</p>",
$cgi -> popup_menu (-name=>'routine',
-value=>['View','Edit']));
}
# ---------------------------------------------------------
# FUNCTION: form_bases
#
# Displays the Form with a popup menu for Drivers and bases
# ---------------------------------------------------------
sub form_bases
{
my ($driver) = @_;
my @drivers = $cgi -> param ('drivers');
print $cgi -> hidden (-name=>'drivers',
-value=>\@drivers);
print $cgi -> row ('Database Driver:',
$cgi -> popup_menu (-name=>'driver',
-values=>\@drivers),
'',
'Login:',
$cgi -> textfield (-name=>'login'),
'',
'Password:',
$cgi -> password_field (-name=>'password'));
my @bases = map {s/^dbi:$driver:(dbname=)?//i; $_}
(DBI->data_sources($driver));
print $cgi -> hidden (-name=>'bases',
-value=>\@bases,
-override=>1);
print $cgi -> row ('Database:',
$cgi -> popup_menu (-name=>'base',
-value=>\@bases),
$cgi -> submit (-name=>'search_bases',
-value=>'Search Databases'));
print $cgi -> row ('Table:',
$cgi -> textfield (-name=>'table'),
$cgi -> submit (-name=>'search_tables',
-value=>'Search Tables'));
print $cgi -> row ($cgi -> submit (-name=>'display',
-value=>'Display Table'),
'',
"<p align=right>Select Display routine:</p>",
$cgi -> popup_menu (-name=>'routine',
-value=>['View','Edit']));
}
# ----------------------------------------------------------------
# FUNCTION: form_tables
#
# Displays the Form with a popup menu for Drivers, Bases and Tables
# ----------------------------------------------------------------
sub form_tables
{
my ($driver, $base, $login, $password, $table) = @_;
my @drivers = $cgi -> param ('drivers');
print $cgi -> hidden (-name=>'drivers',
-value=>\@drivers);
print $cgi -> row ('Database Driver:',
$cgi -> popup_menu (-name=>'driver',
-values=>\@drivers),
'',
'Login:',
$cgi -> textfield (-name=>'login'),
'',
'Password:',
$cgi -> password_field (-name=>'password'));
my @bases;
if ($cgi -> param ('bases')) {
@bases = $cgi -> param ('bases');
}
else {
@bases = map {s/^dbi:$driver:(dbname=)?//i; $_}
(DBI->data_sources($driver));
}
print $cgi -> hidden (-name=>'bases',
-value=>\@bases,
-override=>1);
print $cgi -> row ('Database:',
$cgi -> popup_menu (-name=>'base',
-value=>\@bases),
$cgi -> submit (-name=>'search_bases',
-value=>'Search Databases'));
# establish connection to DBMS
my $dbif = new DBIx::CGI ($cgi, $driver, $base, $login, $password);
$dbif -> install_handler (\&dbi_fatal);
my @tables;
if ($dbif -> tables) {
if ($cgi -> param ('tables')) {
@tables = $cgi -> param ('tables');
print $cgi -> hidden (-name=>'tables',
-value=>\@tables,
-override=>1);
}
else {
@tables = $dbif -> tables;
print $cgi -> hidden (-name=>'tables',
-value=>\@tables,
-override=>1);
}
print $cgi -> row ('Table:',
$cgi -> popup_menu (-name=>'table',
-value=>\@tables),
$cgi -> submit (-name=>'search_tables',
-value=>'Search Tables'));
}
else {
print $cgi -> row ("No Tables!",
"",
$cgi -> submit (-name=>'search_tables',
-value=>'Search Tables'));
}
print $cgi -> row ($cgi -> submit (-name=>'display',
-value=>'Display Table'),
'',
"<p align=right>Select Display routine:</p>",
$cgi -> popup_menu (-name=>'routine',
-value=>['View','Edit']));
}
# DISPLAY ROUTINES
# --------------------------
# FUNCTION: disp_table
#
# Displays the Table Entries
# --------------------------
sub disp_table
{
my ($driver, $base, $table, $login, $password, $order) = @_;
# establish connection to DBMS
my $dbif = new DBIx::CGI ($cgi, $driver, $base, $login, $password);
$dbif -> install_handler (\&dbi_fatal);
my @orders;
my $tbh = $dbif -> process ("SELECT * FROM $table WHERE 1 = 0");
@orders = @{$tbh -> {NAME}};
if ($order) {
unless (grep {$_ eq $order} @orders) {$order = undef}
}
print $cgi -> row ("Order by:",
$cgi -> popup_menu (-name=>'order',
-value=>\@orders));
print $cgi -> row ($dbif -> view ($table,
order => $order || '',
limit => $max_entries));
}
# EDIT ROUTINES
# ----------------------------------
# FUNCTION: edit_disp_table
#
# Display and edit the table entries
# ----------------------------------
sub edit_disp_table {
print <<'EOF';
Sorry, Edit routines not yet implemented.<BR>
If you're interested, put code in dausql.pl line 316 and mail patches to Stefan Hornburg <A HREF="mailto:racke@linuxia.net"><racke@linuxia.net></A>
and Dennis Schön
<A HREF="mailto:dschoen@rio.gt.owl.de"><dschoen@rio.gt.owl.de></A><BR>
<HR>
© 1999 by Stefan Hornburg and Dennis Schön
EOF
exit;
}
# SOME USEFUL ROUTINES
# ------------------------------
# FUNCTION: dbi_fatal
#
# Error handler for DBI routines
# ------------------------------
sub dbi_fatal {
my ($statement, $err, $msg) = @_;
print "<PRE>$statement\n<BR>$msg</PRE>\n";
exit;
}
|
