-A large number of web programming tasks follow the same sort of pattern:
-we have some data in a datasource, typically a relational database. We
-have a bunch of templates provided by web designers. We have a number of
-things we want to be able to do with the database - create, add, edit,
-delete records, view records, run searches, and so on. We have a web
-server which provides input from the user about what to do. Something in
-the middle takes the input, grabs the relevant rows from the database,
-performs the action, constructs a page, and spits it out.
-
-This module aims to be the most generic and extensible "something in the
-middle".
-
-An example would help explain this best. You need to add a product
-catalogue to a company's web site. Users need to list the products in
-various categories, view a page on each product with its photo and
-pricing information and so on, and there needs to be a back-end where
-sales staff can add new lines, change prices, and delete out of date
-records. So, you set up the database, provide some default templates
-for the designers to customize, and then write an Apache handler like
-this:
-
- package ProductDatabase;
- use base 'Apache::MVC';
- __PACKAGE__->set_database("dbi:mysql:products");
- BeerDB->config->{uri_base} = "http://your.site/catalogue/";
- ProductDatabase::Product->has_a("category" => ProductDatabase::Category);
- # ...
-
- sub authenticate {
- my ($self, $request) = @_;
- return OK if $request->{ar}->get_remote_host() eq "sales.yourcorp.com";
- return OK if $request->{action} =~ /^(view|list)$/;
- return DECLINED;
+sub get_request {
+ my ($self, $r) = @_;
+ my $ar;
+ if ($MODPERL2) {
+ $ar = eval {require Apache2::Request} ? Apache2::Request->new($r) : $r;
+ }
+ else { $ar = Apache::Request->instance($r); }
+ $self->ar($ar);
+}
+
+=item parse_location
+
+=cut
+
+sub warn {
+ my ($self,@args) = @_;
+ my ($package, $line) = (caller)[0,2];
+ if ( $args[0] and ref $self ) {
+ $self->{ar}->warn("[$package line $line] ", @args) ;
+ } else {
+ print "warn called by ", caller, " with ", @_, "\n";
+ }
+ return;
+}
+
+=item warn
+
+=cut
+
+sub parse_location {
+ my $self = shift;
+
+ # Reconstruct the request headers
+ $self->headers_in(Maypole::Headers->new);
+ my %headers;
+ if ($MODPERL2) { %headers = %{$self->ar->headers_in};
+ } else { %headers = $self->ar->headers_in; }
+ for (keys %headers) {
+ $self->headers_in->set($_, $headers{$_});
+ }
+ my $path = $self->ar->uri;
+ my $loc = $self->ar->location;
+ {
+ no warnings 'uninitialized';
+ $path .= '/' if $path eq $loc;
+ $path =~ s/^($loc)?\///;