diff options
Diffstat (limited to 'src/interfaces/perl5/examples')
| -rw-r--r-- | src/interfaces/perl5/examples/ApachePg.pl | 55 | ||||
| -rw-r--r-- | src/interfaces/perl5/examples/example.newstyle | 274 | ||||
| -rw-r--r-- | src/interfaces/perl5/examples/example.oldstyle | 294 |
3 files changed, 623 insertions, 0 deletions
diff --git a/src/interfaces/perl5/examples/ApachePg.pl b/src/interfaces/perl5/examples/ApachePg.pl new file mode 100644 index 00000000000..9bbfad7ad0d --- /dev/null +++ b/src/interfaces/perl5/examples/ApachePg.pl @@ -0,0 +1,55 @@ +#!/usr/local/bin/perl + +# $Id: ApachePg.pl,v 1.1 2000/06/01 03:05:24 momjian Exp $ + +# demo script, tested with: +# - PostgreSQL-6.4 +# - apache_1.3.1 +# - mod_perl-1.15 +# - perl5.005_02 + +use CGI; +use Pg; +use strict; + +my $query = new CGI; + +print $query->header, + $query->start_html(-title=>'A Simple Example'), + $query->startform, + "<CENTER><H3>Testing Module Pg</H3></CENTER>", + "<P><CENTER><TABLE CELLPADDING=4 CELLSPACING=2 BORDER=1>", + "<TR><TD>Enter conninfo string: </TD>", + "<TD>", $query->textfield(-name=>'conninfo', -size=>40, -default=>'dbname=template1'), "</TD>", + "</TR>", + "<TR><TD>Enter select command: </TD>", + "<TD>", $query->textfield(-name=>'cmd', -size=>40), "</TD>", + "</TR>", + "</TABLE></CENTER><P>", + "<CENTER>", $query->submit(-value=>'Submit'), "</CENTER>", + $query->endform; + +if ($query->param) { + + my $conninfo = $query->param('conninfo'); + my $conn = Pg::connectdb($conninfo); + if (PGRES_CONNECTION_OK == $conn->status) { + my $cmd = $query->param('cmd'); + my $result = $conn->exec($cmd); + if (PGRES_TUPLES_OK == $result->resultStatus) { + print "<P><CENTER><TABLE CELLPADDING=4 CELLSPACING=2 BORDER=1>\n"; + my @row; + while (@row = $result->fetchrow) { + print "<TR><TD>", join("</TD><TD>", @row), "</TD></TR>"; + } + print "</TABLE></CENTER><P>\n"; + } else { + print "<CENTER><H2>", $conn->errorMessage, "</H2></CENTER>\n"; + } + } else { + print "<CENTER><H2>", $conn->errorMessage, "</H2></CENTER>\n"; + } +} + +print $query->end_html; + diff --git a/src/interfaces/perl5/examples/example.newstyle b/src/interfaces/perl5/examples/example.newstyle new file mode 100644 index 00000000000..30538400333 --- /dev/null +++ b/src/interfaces/perl5/examples/example.newstyle @@ -0,0 +1,274 @@ +#!/usr/local/bin/perl + +# $Id: example.newstyle,v 1.1 2000/06/01 03:05:24 momjian Exp $ + +######################### globals + +$| = 1; +use Pg; + +$dbmain = 'template1'; +$dbname = 'pgperltest'; +$trace = '/tmp/pgtrace.out'; +$DEBUG = 0; # set this to 1 for traces + +######################### the following methods will be used + +# connectdb +# conndefaults +# db +# user +# port +# status +# errorMessage +# trace +# untrace +# exec +# consumeInput +# getline +# putline +# endcopy +# resultStatus +# ntuples +# nfields +# fname +# fnumber +# ftype +# fsize +# cmdStatus +# oidStatus +# cmdTuples +# getvalue +# print +# notifies +# lo_import +# lo_export +# lo_unlink + +######################### the following methods will not be used + +# setdb +# setdbLogin +# reset +# requestCancel +# pass +# host +# tty +# options +# socket +# backendPID +# sendQuery +# getResult +# isBusy +# getlineAsync +# putnbytes +# makeEmptyPGresult +# fmod +# getlength +# getisnull +# displayTuples +# printTuples +# lo_open +# lo_close +# lo_read +# lo_write +# lo_creat +# lo_seek +# lo_tell + +######################### handles error condition + +$SIG{PIPE} = sub { print "broken pipe\n" }; + +######################### create and connect to test database + +$Option_ref = Pg::conndefaults(); +($key, $val); +print "connection defaults:\n"; +while (($key, $val) = each %$Option_ref) { + printf " keyword = %-12.12s val = >%s<\n", $key, $val; +} + +$conn = Pg::connectdb("dbname=$dbmain"); +die $conn->errorMessage unless PGRES_CONNECTION_OK eq $conn->status; +print "connected to $dbmain\n"; + +# do not complain when dropping $dbname +$conn->exec("DROP DATABASE $dbname"); + +$result = $conn->exec("CREATE DATABASE $dbname"); +die $conn->errorMessage unless PGRES_COMMAND_OK eq $result->resultStatus; +print "created database $dbname\n"; + +$conn = Pg::connectdb("dbname=$dbname"); +die $conn->errorMessage unless PGRES_CONNECTION_OK eq $conn->status; +print "connected to $dbname\n"; + +######################### debug, trace + +if ($DEBUG) { + open(TRACE, ">$trace") || die "can not open $trace: $!"; + $conn->trace(TRACE); + print "enabled tracing into $trace\n"; +} + +######################### check PGconn + +$db = $conn->db; +print " database: $db\n"; + +$user = $conn->user; +print " user: $user\n"; + +$port = $conn->port; +print " port: $port\n"; + +######################### create and insert into table + +$result = $conn->exec("CREATE TABLE person (id int4, name char(16))"); +die $conn->errorMessage unless PGRES_COMMAND_OK eq $result->resultStatus; +print "created table, status = ", $result->cmdStatus, "\n"; + +for ($i = 1; $i <= 5; $i++) { + $result = $conn->exec("INSERT INTO person VALUES ($i, 'Edmund Mergl')"); + die $conn->errorMessage unless PGRES_COMMAND_OK eq $result->resultStatus; +} +print "insert into table, last oid = ", $result->oidStatus, "\n"; + +######################### copy to stdout, getline + +$result = $conn->exec("COPY person TO STDOUT"); +die $conn->errorMessage unless PGRES_COPY_OUT eq $result->resultStatus; +print "copy table to STDOUT:\n"; + +$ret = 0; +$i = 1; +while (-1 != $ret) { + $ret = $conn->getline($string, 256); + last if $string eq "\\."; + print " ", $string, "\n"; + $i ++; +} + +die $conn->errorMessage unless 0 == $conn->endcopy; + +######################### delete and copy from stdin, putline + +$result = $conn->exec("BEGIN"); +die $conn->errorMessage unless PGRES_COMMAND_OK eq $result->resultStatus; + +$result = $conn->exec("DELETE FROM person"); +die $conn->errorMessage unless PGRES_COMMAND_OK eq $result->resultStatus; +print "delete from table, command status = ", $result->cmdStatus, ", no. of tuples = ", $result->cmdTuples, "\n"; + +$result = $conn->exec("COPY person FROM STDIN"); +die $conn->errorMessage unless PGRES_COPY_IN eq $result->resultStatus; +print "copy table from STDIN: "; + +for ($i = 1; $i <= 5; $i++) { + # watch the tabs and do not forget the newlines + $conn->putline("$i Edmund Mergl\n"); +} +$conn->putline("\\.\n"); + +die $conn->errorMessage unless 0 == $conn->endcopy; + +$result = $conn->exec("END"); +die $conn->errorMessage unless PGRES_COMMAND_OK eq $result->resultStatus; +print "ok\n"; + +######################### select from person, getvalue + +$result = $conn->exec("SELECT * FROM person"); +die $conn->errorMessage unless PGRES_TUPLES_OK eq $result->resultStatus; +print "select from table:\n"; + +for ($k = 0; $k < $result->nfields; $k++) { + print " field = ", $k, "\tfname = ", $result->fname($k), "\tftype = ", $result->ftype($k), "\tfsize = ", $result->fsize($k), "\tfnumber = ", $result->fnumber($result->fname($k)), "\n"; +} + +while (@row = $result->fetchrow) { + print " ", join(" ", @row), "\n"; +} + +######################### notifies + +if (! defined($pid = fork)) { + die "can not fork: $!"; +} elsif (! $pid) { + # I'm the child + sleep 2; + bless $conn; + $conn = Pg::connectdb("dbname=$dbname"); + $result = $conn->exec("NOTIFY person"); + exit; +} + +$result = $conn->exec("LISTEN person"); +die $conn->errorMessage unless PGRES_COMMAND_OK eq $result->resultStatus; +print "listen table: status = ", $result->cmdStatus, "\n"; + +while (1) { + $conn->consumeInput; + ($table, $pid) = $conn->notifies; + last if $pid; +} +print "got notification: table = ", $table, " pid = ", $pid, "\n"; + +######################### print + +$result = $conn->exec("SELECT * FROM person"); +die $conn->errorMessage unless PGRES_TUPLES_OK eq $result->resultStatus; +print "select from table and print:\n"; +$result->print(STDOUT, 0, 0, 0, 0, 0, 0, " ", "", "", ""); + +######################### lo_import, lo_export, lo_unlink + +$lobject_in = '/tmp/gaga.in'; +$lobject_out = '/tmp/gaga.out'; + +$data = "testing large objects using lo_import and lo_export"; +open(FD, ">$lobject_in") or die "can not open $lobject_in"; +print(FD $data); +close(FD); + +$result = $conn->exec("BEGIN"); +die $conn->errorMessage unless PGRES_COMMAND_OK eq $result->resultStatus; + +$lobjOid = $conn->lo_import("$lobject_in") or die $conn->errorMessage; +print "importing file as large object, Oid = ", $lobjOid, "\n"; + +die $conn->errorMessage unless 1 == $conn->lo_export($lobjOid, "$lobject_out"); +print "exporting large object as temporary file\n"; + +$result = $conn->exec("END"); +die $conn->errorMessage unless PGRES_COMMAND_OK eq $result->resultStatus; + +print "comparing imported file with exported file: "; +print "not " unless (-s "$lobject_in" == -s "$lobject_out"); +print "ok\n"; + +die $conn->errorMessage if -1 == $conn->lo_unlink($lobjOid); +unlink $lobject_in; +unlink $lobject_out; +print "unlink large object\n"; + +######################### debug, untrace + +if ($DEBUG) { + close(TRACE) || die "bad TRACE: $!"; + $conn->untrace; + print "tracing disabled\n"; +} + +######################### disconnect and drop test database + +$conn = Pg::connectdb("dbname=$dbmain"); +die $conn->errorMessage unless PGRES_CONNECTION_OK eq $conn->status; +print "connected to $dbmain\n"; + +$result = $conn->exec("DROP DATABASE $dbname"); +die $conn->errorMessage unless PGRES_COMMAND_OK eq $result->resultStatus; +print "drop database\n"; + +######################### EOF diff --git a/src/interfaces/perl5/examples/example.oldstyle b/src/interfaces/perl5/examples/example.oldstyle new file mode 100644 index 00000000000..5c63ef8d657 --- /dev/null +++ b/src/interfaces/perl5/examples/example.oldstyle @@ -0,0 +1,294 @@ +#!/usr/local/bin/perl + +# $Id: example.oldstyle,v 1.1 2000/06/01 03:05:24 momjian Exp $ + +######################### globals + +$| = 1; +use Pg; + +$dbmain = 'template1'; +$dbname = 'pgperltest'; +$trace = '/tmp/pgtrace.out'; +$DEBUG = 0; # set this to 1 for traces + +######################### the following functions will be tested + +# PQsetdb() +# PQdb() +# PQuser() +# PQport() +# PQstatus() +# PQfinish() +# PQerrorMessage() +# PQtrace() +# PQuntrace() +# PQexec() +# PQconsumeInput +# PQgetline() +# PQputline() +# PQendcopy() +# PQresultStatus() +# PQntuples() +# PQnfields() +# PQfname() +# PQfnumber() +# PQftype() +# PQfsize() +# PQcmdStatus() +# PQoidStatus() +# PQcmdTuples() +# PQgetvalue() +# PQclear() +# PQprint() +# PQnotifies() +# PQlo_import() +# PQlo_export() +# PQlo_unlink() + +######################### the following functions will not be tested + +# PQconnectdb() +# PQconndefaults() +# PQsetdbLogin() +# PQreset() +# PQrequestCancel() +# PQpass() +# PQhost() +# PQtty() +# PQoptions() +# PQsocket() +# PQbackendPID() +# PQsendQuery() +# PQgetResult() +# PQisBusy() +# PQgetlineAsync() +# PQputnbytes() +# PQmakeEmptyPGresult() +# PQfmod() +# PQgetlength() +# PQgetisnull() +# PQdisplayTuples() +# PQprintTuples() +# PQlo_open() +# PQlo_close() +# PQlo_read() +# PQlo_write() +# PQlo_creat() +# PQlo_lseek() +# PQlo_tell() + +######################### handles error condition + +$SIG{PIPE} = sub { print "broken pipe\n" }; + +######################### create and connect to test database + +$conn = PQsetdb('', '', '', '', $dbmain); +die PQerrorMessage($conn) unless PGRES_CONNECTION_OK eq PQstatus($conn); +print "connected to $dbmain\n"; + +# do not complain when dropping $dbname +$result = PQexec($conn, "DROP DATABASE $dbname"); +PQclear($result); + +$result = PQexec($conn, "CREATE DATABASE $dbname"); +die PQerrorMessage($conn) unless PGRES_COMMAND_OK eq PQresultStatus($result); +print "created database $dbname\n"; +PQclear($result); + +PQfinish($conn); + +$conn = PQsetdb('', '', '', '', $dbname); +die PQerrorMessage($conn) unless PGRES_CONNECTION_OK eq PQstatus($conn); +print "connected to $dbname\n"; + +######################### debug, PQtrace + +if ($DEBUG) { + open(TRACE, ">$trace") || die "can not open $trace: $!"; + PQtrace($conn, TRACE); + print "enabled tracing into $trace\n"; +} + +######################### check PGconn + +$db = PQdb($conn); +print " database: $db\n"; + +$user = PQuser($conn); +print " user: $user\n"; + +$port = PQport($conn); +print " port: $port\n"; + +######################### create and insert into table + +$result = PQexec($conn, "CREATE TABLE person (id int4, name char(16))"); +die PQerrorMessage($conn) unless PGRES_COMMAND_OK eq PQresultStatus($result); +print "created table, status = ", PQcmdStatus($result), "\n"; +PQclear($result); + +for ($i = 1; $i <= 5; $i++) { + $result = PQexec($conn, "INSERT INTO person VALUES ($i, 'Edmund Mergl')"); + die PQerrorMessage($conn) unless PGRES_COMMAND_OK eq PQresultStatus($result); + PQclear($result); +} +print "insert into table, last oid = ", PQoidStatus($result), "\n"; + +######################### copy to stdout, PQgetline + +$result = PQexec($conn, "COPY person TO STDOUT"); +die PQerrorMessage($conn) unless PGRES_COPY_OUT eq PQresultStatus($result); +print "copy table to STDOUT:\n"; +PQclear($result); + +$ret = 0; +$i = 1; +while (-1 != $ret) { + $ret = PQgetline($conn, $string, 256); + last if $string eq "\\."; + print " ", $string, "\n"; + $i++; +} + +die PQerrorMessage($conn) unless 0 == PQendcopy($conn); + +######################### delete and copy from stdin, PQputline + +$result = PQexec($conn, "BEGIN"); +die PQerrorMessage($conn) unless PGRES_COMMAND_OK eq PQresultStatus($result); +PQclear($result); + +$result = PQexec($conn, "DELETE FROM person"); +die PQerrorMessage($conn) unless PGRES_COMMAND_OK eq PQresultStatus($result); +print "delete from table, command status = ", PQcmdStatus($result), ", no. of tuples = ", PQcmdTuples($result), "\n"; +PQclear($result); + +$result = PQexec($conn, "COPY person FROM STDIN"); +die PQerrorMessage($conn) unless PGRES_COPY_IN eq PQresultStatus($result); +print "copy table from STDIN:\n"; +PQclear($result); + +for ($i = 1; $i <= 5; $i++) { + # watch the tabs and do not forget the newlines + PQputline($conn, "$i Edmund Mergl\n"); +} +PQputline($conn, "\\.\n"); + +die PQerrorMessage($conn) unless 0 == PQendcopy($conn); + +$result = PQexec($conn, "END"); +die PQerrorMessage($conn) unless PGRES_COMMAND_OK eq PQresultStatus($result); +PQclear($result); + +######################### select from person, PQgetvalue + +$result = PQexec($conn, "SELECT * FROM person"); +die PQerrorMessage($conn) unless PGRES_TUPLES_OK eq PQresultStatus($result); +print "select from table:\n"; + +for ($k = 0; $k < PQnfields($result); $k++) { + print " field = ", $k, "\tfname = ", PQfname($result, $k), "\tftype = ", PQftype($result, $k), "\tfsize = ", PQfsize($result, $k), "\tfnumber = ", PQfnumber($result, PQfname($result, $k)), "\n"; +} + +for ($k = 0; $k < PQntuples($result); $k++) { + for ($l = 0; $l < PQnfields($result); $l++) { + print " ", PQgetvalue($result, $k, $l); + } + print "\n"; +} + +PQclear($result); + +######################### PQnotifies + +if (! defined($pid = fork)) { + die "can not fork: $!"; +} elsif (! $pid) { + # I'm the child + sleep 2; + $conn = PQsetdb('', '', '', '', $dbname); + $result = PQexec($conn, "NOTIFY person"); + PQclear($result); + PQfinish($conn); + exit; +} + +$result = PQexec($conn, "LISTEN person"); +die PQerrorMessage($conn) unless PGRES_COMMAND_OK eq PQresultStatus($result); +print "listen table: status = ", PQcmdStatus($result), "\n"; +PQclear($result); + +while (1) { + PQconsumeInput($conn); + ($table, $pid) = PQnotifies($conn); + last if $pid; +} +print "got notification: table = ", $table, " pid = ", $pid, "\n"; + +######################### PQprint + +$result = PQexec($conn, "SELECT * FROM person"); +die PQerrorMessage($conn) unless PGRES_TUPLES_OK eq PQresultStatus($result); +print "select from table and print:\n"; +PQprint(STDOUT, $result, 0, 0, 0, 0, 0, 0, " ", "", "", ""); +PQclear($result); + +######################### PQlo_import, PQlo_export, PQlo_unlink + +$lobject_in = '/tmp/gaga.in'; +$lobject_out = '/tmp/gaga.out'; + +$data = "testing large objects using lo_import and lo_export"; +open(FD, ">$lobject_in") or die "can not open $lobject_in"; +print(FD $data); +close(FD); + +$result = PQexec($conn, "BEGIN"); +die PQerrorMessage($conn) unless PGRES_COMMAND_OK eq PQresultStatus($result); +PQclear($result); + +$lobjOid = PQlo_import($conn, "$lobject_in") or die PQerrorMessage($conn); +print "importing file as large object, Oid = ", $lobjOid, "\n"; + +die PQerrorMessage($conn) unless 1 == PQlo_export($conn, $lobjOid, "$lobject_out"); +print "exporting large object as temporary file\n"; + +$result = PQexec($conn, "END"); +die PQerrorMessage($conn) unless PGRES_COMMAND_OK eq PQresultStatus($result); +PQclear($result); + +print "comparing imported file with exported file: "; +print "not " unless (-s "$lobject_in" == -s "$lobject_out"); +print "ok\n"; + +die PQerrorMessage($conn) if -1 == PQlo_unlink($conn, $lobjOid); +unlink $lobject_in; +unlink $lobject_out; +print "unlink large object\n"; + +######################### debug, PQuntrace + +if ($DEBUG) { + close(TRACE) || die "bad TRACE: $!"; + PQuntrace($conn); + print "tracing disabled\n"; +} + +######################### disconnect and drop test database + +PQfinish($conn); + +$conn = PQsetdb('', '', '', '', $dbmain); +die PQerrorMessage($conn) unless PGRES_CONNECTION_OK eq PQstatus($conn); +print "connected to $dbmain\n"; + +$result = PQexec($conn, "DROP DATABASE $dbname"); +die PQerrorMessage($conn) unless PGRES_COMMAND_OK eq PQresultStatus($result); +print "drop database\n"; +PQclear($result); + +PQfinish($conn); + +######################### EOF |