Learning mod_perl2.0

[Kemin Zhou <ke...@ferring.com>]

Need someone to point to the right direction.
I have written a lot of CGI using CGI.pm, and build apache2 and mod_perl 
2.0 (Version 1.99_13)
I have written a couple scripts that works fine and faster.

I still have trouble to make any progres.  I don't know what I am 
doing.  First is mod_perl 2.0 the same as 1.99_13?
It is kind confusing. Am I using mod_perl 2.0?

I bought a book that are suggested by the mod_perl web page:  
http://www.modperlcookbook.org/
This book is using 1.26, it is mod_perl 1.2.  Some of the exampel 
scripts in the book won't work in my set up.
For example the $r->send_http_header('text/plain');  will trigger an 
error in my error log.

My next question is Do I respect this book <mod_perl Developer's 
Cookbook>?  Should I use this book to
learn mod_perl 2.0?  I found nearly nothing on the web for 2.0 
documentation.

If any expert can drop a few lines I would appreciate.

Kemin



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Re: Learning mod_perl2.0

[Geoffrey Young <ge...@modperlcookbook.org>]

Kemin Zhou wrote:
> Need someone to point to the right direction.
> I have written a lot of CGI using CGI.pm, and build apache2 and mod_perl
> 2.0 (Version 1.99_13)
> I have written a couple scripts that works fine and faster.
> 
> I still have trouble to make any progres.  I don't know what I am
> doing.  First is mod_perl 2.0 the same as 1.99_13?
> It is kind confusing. Am I using mod_perl 2.0?

yes, mod_perl 1.99_XX is the "mod_perl 2.0" you are looking for, which is
the only version of mod_perl that will work with Apache 2.0.  mod_perl 1.29
works only with Apache 1.3.X.

> I bought a book that are suggested by the mod_perl web page: 
> http://www.modperlcookbook.org/
> This book is using 1.26, it is mod_perl 1.2.  Some of the exampel
> scripts in the book won't work in my set up.
> For example the $r->send_http_header('text/plain');  will trigger an
> error in my error log.

most things between mod_perl 1.0 and mod_perl 2.0 are the same.
unfortunately, some things are not.  $r->send_http_header() no longer exists
in mod_perl 2.0 - use $r->content_type() to set the content type (same as
mod_perl 1.0) then let apache send the headers by itself.

> 
> My next question is Do I respect this book <mod_perl Developer's
> Cookbook>?  Should I use this book to
> learn mod_perl 2.0?  

the short answer is that the cookbook is good for lots of things, many of
which are almost exactly the same between mod_perl 1.0 and mod_perl 2.0.

the longer answer is here

  http://www.modperlcookbook.org/modperl2.html

> I found nearly nothing on the web for 2.0
> documentation.

there is tons of information here:

  http://perl.apache.org/docs/2.0/index.html

you can also find some interesting things here:

  http://www.perl.com/pub/au/Young_Geoffrey

HTH

--Geoff

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