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.\" ========================================================================
.\"
.IX Title "AnyEvent::DBD::Pg 3pm"
.TH AnyEvent::DBD::Pg 3pm "2022-06-05" "perl v5.34.0" "User Contributed Perl Documentation"
.\" For nroff, turn off justification.  Always turn off hyphenation; it makes
.\" way too many mistakes in technical documents.
.if n .ad l
.nh
.SH "NAME"
AnyEvent::DBD::Pg \- AnyEvent interface to DBD::Pg's async interface
.SH "SYNOPSIS"
.IX Header "SYNOPSIS"
.Vb 1
\&        use AnyEvent::DBD::Pg;
\&        
\&        my $adb = AnyEvent::DBD::Pg\->new(\*(Aqdbi:Pg:dbname=test\*(Aq, user => \*(Aqpass\*(Aq, {
\&                pg_enable_utf8 => 1,
\&                pg_server_prepare => 0,
\&                quote_char => \*(Aq"\*(Aq,
\&                name_sep => ".",
\&        }, debug => 1);
\&        
\&        $adb\->queue_size( 4 );
\&        $adb\->debug( 1 );
\&        
\&        $adb\->connect;
\&        
\&        $adb\->selectcol_arrayref("select pg_sleep( 0.1 ), 1", { Columns => [ 1 ] }, sub {
\&                my $rc = shift or return warn;
\&                my $res = shift;
\&                warn "Got <$adb\->{qd}> = $rc / @{$res}";
\&                $adb\->selectrow_hashref("select data,* from tx limit 2", {}, sub {
\&                        my $rc = shift or return warn;
\&                        warn "Got $adb\->{qd} = $rc [@_]";
\&                });
\&        });
\&        
\&        $adb\->execute("update tx set data = data;",sub {
\&                my $rc = shift or return warn;
\&                warn "Got exec: $rc";
\&                #my $st = shift;
\&                #$st\->finish;
\&        });
\&        
\&        $adb\->execute("select from 1",sub {
\&                shift or return warn;
\&                warn "Got $adb\->{qd} = @_";
\&        });
\&        
\&        $adb\->selectrow_array("select pg_sleep( 0.1 ), 2", {}, sub {
\&                shift or return warn;
\&                warn "Got $adb\->{qd} = [@_]";
\&                $adb\->selectrow_hashref("select * from tx limit 1", {}, sub {
\&                        warn "Got $adb\->{qd} = [@_]";
\&                        $adb\->execute("select * from tx", sub {
\&                                my $rc = shift or return warn;
\&                                my $st = shift;
\&                                while(my $row = $st\->fetchrow_hashref) { warn "$row\->{id}"; }
\&                                $st\->finish;
\&                                exit;
\&                        });
\&                });
\&        });
\&        AE::cv\->recv;
.Ve
.SH "METHODS"
.IX Header "METHODS"
.IP "\fBconnect()\fR" 4
.IX Item "connect()"
Establish connection to database
.ie n .IP "selectrow_array( $query, [\e%args], $cb\->( $rc, ... ))" 4
.el .IP "selectrow_array( \f(CW$query\fR, [\e%args], \f(CW$cb\fR\->( \f(CW$rc\fR, ... ))" 4
.IX Item "selectrow_array( $query, [%args], $cb->( $rc, ... ))"
Execute \s-1PG_ASYNC\s0 prepare, than push result of \f(CW\*(C`fetchrow_array\*(C'\fR into callback
.ie n .IP "selectrow_arrayref( $query, [\e%args], $cb\->( $rc, \e@row ))" 4
.el .IP "selectrow_arrayref( \f(CW$query\fR, [\e%args], \f(CW$cb\fR\->( \f(CW$rc\fR, \e@row ))" 4
.IX Item "selectrow_arrayref( $query, [%args], $cb->( $rc, @row ))"
Execute \s-1PG_ASYNC\s0 prepare, than push result of \f(CW\*(C`fetchrow_arrayref\*(C'\fR into callback
.ie n .IP "selectrow_hashref( $query, [\e%args], $cb\->( $rc, \e%row ))" 4
.el .IP "selectrow_hashref( \f(CW$query\fR, [\e%args], \f(CW$cb\fR\->( \f(CW$rc\fR, \e%row ))" 4
.IX Item "selectrow_hashref( $query, [%args], $cb->( $rc, %row ))"
Execute \s-1PG_ASYNC\s0 prepare, than push result of \f(CW\*(C`fetchrow_hashref\*(C'\fR into callback
.ie n .IP "selectall_arrayref( $query, [\e%args], $cb\->( $rc, \e@rows ))" 4
.el .IP "selectall_arrayref( \f(CW$query\fR, [\e%args], \f(CW$cb\fR\->( \f(CW$rc\fR, \e@rows ))" 4
.IX Item "selectall_arrayref( $query, [%args], $cb->( $rc, @rows ))"
Execute \s-1PG_ASYNC\s0 prepare, than push result of \f(CW\*(C`fetchall_arrayref\*(C'\fR into callback
.ie n .IP "selectall_hashref( $query, [\e%args], $cb\->( $rc, \e@rows ))" 4
.el .IP "selectall_hashref( \f(CW$query\fR, [\e%args], \f(CW$cb\fR\->( \f(CW$rc\fR, \e@rows ))" 4
.IX Item "selectall_hashref( $query, [%args], $cb->( $rc, @rows ))"
Execute \s-1PG_ASYNC\s0 prepare, than push result of \f(CW\*(C`fetchall_hashref\*(C'\fR into callback
.ie n .IP "selectcol_arrayref( $query, { Columns => [...], ... }, $cb\->( $rc, \e@rows ))" 4
.el .IP "selectcol_arrayref( \f(CW$query\fR, { Columns => [...], ... }, \f(CW$cb\fR\->( \f(CW$rc\fR, \e@rows ))" 4
.IX Item "selectcol_arrayref( $query, { Columns => [...], ... }, $cb->( $rc, @rows ))"
Execute \s-1PG_ASYNC\s0 prepare, than push result of \f(CW\*(C`fetchall_hashref($args{Columns})\*(C'\fR into callback
.ie n .IP "execute( $query, [\e%args], $cb\->( $rc, $sth ))" 4
.el .IP "execute( \f(CW$query\fR, [\e%args], \f(CW$cb\fR\->( \f(CW$rc\fR, \f(CW$sth\fR ))" 4
.IX Item "execute( $query, [%args], $cb->( $rc, $sth ))"
Execute \s-1PG_ASYNC\s0 prepare, than invoke callback, pushing resulting sth to it.
.Sp
\&\fBPlease, note\fR: result already passed as first argument
.SH "AUTHOR"
.IX Header "AUTHOR"
Mons Anderson, \f(CW\*(C`<mons@cpan.org>\*(C'\fR
.SH "LICENSE AND COPYRIGHT"
.IX Header "LICENSE AND COPYRIGHT"
Copyright 2010 Mons Anderson.
.PP
This program is free software; you can redistribute it and/or modify it
under the terms of either: the \s-1GNU\s0 General Public License as published
by the Free Software Foundation; or the Artistic License.