#url.pm
#Last Change: 2009-01-19
#Copyright (c) 2009 Marc-Seabstian "Maluku" Lucksch
#Version 0.8
####################
#This file is part of the Dotiac::DTL project.
#http://search.cpan.org/perldoc?Dotiac::DTL
#
#url.pm is published under the terms of the MIT license, which basically
#means "Do with it whatever you want". For more information, see the
#license.txt file that should be enclosed with libsofu distributions. A copy of
#the license is (at the time of writing) also available at
#http://www.opensource.org/licenses/mit-license.php .
###############################################################################
package Dotiac::DTL::Tag::url;
use base qw/Dotiac::DTL::Tag/;
use strict;
use warnings;
our $VERSION = 0.8;
#Bugs: Url in var (as) must be marked safe manually
sub new {
my $class=shift;
my $self={p=>shift()};
my %name=Dotiac::DTL::get_variables(shift(),"as");
my $name=join(",",@{$name{""}});
if ($name{"as"}) {
$self->{var}=$name{"as"}->[0];
}
my @url=split /\,/,$name;
my $var=0;
my @path;
my @query;
foreach my $u (@url) {
if ($u =~/\=/) {
$var=1;
push @query,[split /=/,$u,2];
}
elsif ($var) {
push @query,$u;
}
else {
push @path,$u;
}
}
$self->{path}=[@path];
$self->{query}=[@query];
bless $self,$class;
return $self;
}
sub print {
my $self=shift;
my $vars=shift;
my $escape=shift;
print $self->{p};
#print join("/",map {Dotiac::DTL::devar($_,@_)} @{$self->{path}}),(@{$self->{query}}?"?".join("&",map {join "=",map {Dotiac::DTL::devar($_,@_)} @{$_}} @{$self->{query}}:"");
if ($self->{var}) {
$vars->{$self->{var}} = join("/",map {Dotiac::DTL::Filter::urlencode(Dotiac::DTL::devar_raw($_,$vars,0,@_),":/")->repr()} @{$self->{path}}).(@{$self->{query}}?"?".join("&",map {join "=",map {Dotiac::DTL::Filter::urlencode(Dotiac::DTL::devar_raw($_,$vars,0,@_),"")->repr()} @{$_}} @{$self->{query}}):"");
}
else {
print Dotiac::DTL::Escape(join("/",map {Dotiac::DTL::Filter::urlencode(Dotiac::DTL::devar_raw($_,$vars,0,@_),":/")->repr()} @{$self->{path}}).(@{$self->{query}}?"?".join("&",map {join "=",map {Dotiac::DTL::Filter::urlencode(Dotiac::DTL::devar_raw($_,$vars,0,@_),"")->repr()} @{$_}} @{$self->{query}}):""),$escape);
}
$self->{n}->print($vars,$escape,@_);
}
sub string {
my $self=shift;
my $vars=shift;
my $escape=shift;
if ($self->{var}) {
$vars->{$self->{var}} = join("/",map {Dotiac::DTL::Filter::urlencode(Dotiac::DTL::devar_raw($_,$vars,0,@_),":/")->repr()} @{$self->{path}}).(@{$self->{query}}?"?".join("&",map {join "=",map {Dotiac::DTL::Filter::urlencode(Dotiac::DTL::devar_raw($_,$vars,0,@_),"")->repr()} @{$_}} @{$self->{query}}):"");
return $self->{p}.$self->{n}->string($vars,$escape,@_);
}
return $self->{p}.Dotiac::DTL::Escape(join("/",map {Dotiac::DTL::Filter::urlencode(Dotiac::DTL::devar_raw($_,$vars,0,@_),":/")->repr()} @{$self->{path}}).(@{$self->{query}}?"?".join("&",map {join "=",map {Dotiac::DTL::Filter::urlencode(Dotiac::DTL::devar_raw($_,$vars,0,@_),"")->repr()} @{$_}} @{$self->{query}}):""),$escape).$self->{n}->string($vars,$escape,@_);
}
sub perl {
my $self=shift;
my $fh=shift;
my $id=shift;
$self->SUPER::perl($fh,$id,@_);
print $fh "my ";
print $fh (Data::Dumper->Dump([$self->{path}],["\$path$id"]));
print $fh "my ";
print $fh (Data::Dumper->Dump([$self->{query}],["\$query$id"]));
if ($self->{var}) {
print $fh "my ";
print $fh (Data::Dumper->Dump([$self->{var}],["\$var$id"]));
}
return $self->{n}->perl($fh,$id+1,@_) if $self->{n};
return $id;
}
sub perlprint {
my $self=shift;
my $fh=shift;
my $id=shift;
my $level=shift;
$self->SUPER::perlprint($fh,$id,$level,@_);
if ($self->{var}) {
print $fh "\t" x $level,"\$vars->{\$var$id}=join(\"/\",map {Dotiac::DTL::Filter::urlencode(Dotiac::DTL::devar_raw(\$_,\$vars,\$escape,\@_),\":/\")->repr()} \@{\$path$id}).(\@{\$query$id}?\"?\".join(\"&\",map {join \"=\",map {Dotiac::DTL::Filter::urlencode(Dotiac::DTL::devar_raw(\$_,\$vars,0,\@_),\"\")->repr()} \@{\$_}} \@{\$query$id}):\"\");\n";
}
else {
print $fh "\t" x $level,"print Dotiac::DTL::Escape(join(\"/\",map {Dotiac::DTL::Filter::urlencode(Dotiac::DTL::devar_raw(\$_,\$vars,\$escape,\@_),\":/\")->repr()} \@{\$path$id}).(\@{\$query$id}?\"?\".join(\"&\",map {join \"=\",map {Dotiac::DTL::Filter::urlencode(Dotiac::DTL::devar_raw(\$_,\$vars,0,\@_),\"\")->repr()} \@{\$_}} \@{\$query$id}):\"\"),\$escape);\n";
}
return $self->{n}->perlprint($fh,$id+1,$level,@_);
}
sub perlstring {
my $self=shift;
my $fh=shift;
my $id=shift;
my $level=shift;
$self->SUPER::perlstring($fh,$id,$level,@_);
if ($self->{var}) {
print $fh "\t" x $level,"\$vars->{\$var$id}=join(\"/\",map {Dotiac::DTL::Filter::urlencode(Dotiac::DTL::devar_raw(\$_,\$vars,0,\@_),\":/\")->repr()} \@{\$path$id}).(\@{\$query$id}?\"?\".join(\"&\",map {join \"=\",map {Dotiac::DTL::Filter::urlencode(Dotiac::DTL::devar_raw(\$_,\$vars,0,\@_),\"\")->repr()} \@{\$_}} \@{\$query$id}):\"\");\n";
}
else {
print $fh "\t" x $level,"\$r.=Dotiac::DTL::Escape(join(\"/\",map {Dotiac::DTL::Filter::urlencode(Dotiac::DTL::devar_raw(\$_,\$vars,0,\@_),\":/\")->repr()} \@{\$path$id}).(\@{\$query$id}?\"?\".join(\"&\",map {join \"=\",map {Dotiac::DTL::Filter::urlencode(Dotiac::DTL::devar_raw(\$_,\$vars,0,\@_),\"\")->repr()} \@{\$_}} \@{\$query$id}):\"\"),\$escape);\n";
}
return $self->{n}->perlstring($fh,$id+1,$level,@_);
}
sub perlcount {
my $self=shift;
my $id=shift;
return $self->{n}->perlcount($id+1);
}
sub perleval {
my $self=shift;
my $fh=shift;
my $id=shift;
my $level=shift;
if ($self->{var}) {
print $fh "\t" x $level,"\$vars->{\$var$id}=join(\"/\",map {Dotiac::DTL::Filter::urlencode(Dotiac::DTL::devar_raw(\$_,\$vars,\$escape,\@_),\":/\")->repr()} \@{\$path$id}).(\@{\$query$id}?\"?\".join(\"&\",map {join \"=\",map {Dotiac::DTL::Filter::urlencode(Dotiac::DTL::devar_raw(\$_,\$vars,0,\@_),\"\")->repr()} \@{\$_}} \@{\$query$id}):\"\");\n";
}
return $self->{n}->perleval($fh,$id+1,$level,@_);
}
sub perlinit {
my $self=shift;
my $fh=shift;
my $id=shift;
return $self->{n}->perlinit($fh,$id+1,@_);
}
sub next {
my $self=shift;
$self->{n}=shift;
}
sub eval {
my $self=shift;
my $vars=shift;
my $escape=shift;
if ($self->{var}) {
$vars->{$self->{var}} = join("/",map {Dotiac::DTL::Filter::urlencode(Dotiac::DTL::devar_raw($_,$vars,0,@_),":/")->repr()} @{$self->{path}}).(@{$self->{query}}?"?".join("&",map {join "=",map {Dotiac::DTL::Filter::urlencode(Dotiac::DTL::devar_raw($_,$vars,0,@_),"")->repr()} @{$_}} @{$self->{query}}):"");
}
$self->{n}->eval($vars,$escape,@_);
}
1;
__END__
=head1 NAME
Dotiac::DTL::Tag::url - The {% url PATH,[PATH,[...],[PARAMETER=VALUE,[PARAMETER=VALUE,[..]]] [as VAR] %} tag
=head1 SYNOPSIS
Template file:
{% url "forum","thread",variable,"id"=post.id %} {# forum/thread/444/?id=556 #}
{% url "","forum","thread",variable,"id"=post.id %} {# /forum/thread/444/?id=556 #}
{% url "http://www.google.com","forum","thread",variable,"id"=post.id %} {# http://www.google.com/forum/thread/444/?id=556 #}
{% url "http://www.google.com","forum","thread",variable,"id"=post.id as link_url %} {# <nothing> #}
{{ link_url|upper|safe }} {# HTTP://WWW.GOOGLE.COM/FORUM/THREAD/444/?ID=556 #}
=head1 DESCRIPTION
Generates an url from a joined PATH and adds also PARAMETERs with VALUES for get-queries.
When provided with an "as" and a variable name, it will output nothing and save the url into a variable, which can be used for further processing.
the PATH, PARAMETERs and VALUES are automatically url-encoded.
=head1 BUGS AND DIFFERENCES TO DJANGO
The normal Django {% url %} tag gets as a first parameter the name of Django-view, since there is no Django backend in this implementation, this is not possible.
When writing the url into a variable, that variable has to be marked safe manually, using the safe Filter (See L<Dotiac::DTL::Filter>)
=head1 SEE ALSO
L<http://www.djangoproject.com>, L<Dotiac::DTL>
=head1 LEGAL
Dotiac::DTL was built according to http://docs.djangoproject.com/en/dev/ref/templates/builtins/.
=head1 AUTHOR
Marc-Sebastian Lucksch
perl@marc-s.de
=cut