AWebFactory

Demo App Part3

Sat, 09 Dec 2006 15:38:36 Z

Let’s develop the AWDWR demo app further within the rails environment, and polish it off!

Dynamic loops in the view

Let’s add the following code to the view:

<% 3.times do %>
Ho!<br />
<% end %>
Merry Christmas!

<% 3.downto(1) do |count| %>
<%= count %>...<br />
<% end %>
Lift off!

Before we saw that anything between <%= and %> is interpreted directly as Ruby code and the result passed on to the view to display.

Now, the symbols <% and %> (without the ”=”) cause whatever is between them to be interpreted without the result immediately being passed on to the view. This is perfect for loop and conditional statements.

Again, find the appropriate /demo/app/views/say/hello.rhtml file (which automatically corresponds to the method hello of the SayController), add in the code and save your work:

In your browser you should be seeing:

html encoding helper function h()

Email: < %= h("Ann&Bill<frazers@isp.email>") %>

Added to the view code, that yields:

But what does the helper function h() actually do? To find out view the source code in your browser:

<p>
Email: John&amp;Mary&lt;Smith@greatfree.email&gt;
</p>

What the function does is to escape the html characters passed to it as the string parameter, rendering them as html entities.

The time now is…

We could add the following code to the view:

<p>
  It is now <%= Time.now %>
</p>

But here we are getting carried away, and violating the MVC principle of separating view and controller (basically because then changes to the brains behind multiple views can be accomplished through changes in only one place, the controller, and also because then code won’t be pathalogically mixed and stuck in anywhere, inviting more bugs).

So we put the code where it belongs, in the controller :


class SayController < ApplicationController
  def hello
    @time = Time.now
  end
end

and use the view to, well, display the values, using the Ruby interpretation for the purposes proper to the view, in this case receiving a dynamic value:


<p>
  It is now <%= @time %>.
</p>

In RadRails this can be done conveniently:

and we get the right time every time we refresh our browser:

Hey, time to commit to the repository!

Well, I think I can spare the time: right-click on the demo folder, do /Team/Commit, fill in the Commit info:

Hit enter, and you have secure commit to the repository, and that’s that.

The Object Soup revisited

The http request reaches the server in the form of a URL (http://localhost:3000/say/hello).
The server passes the Path Info to Runtime Rails.
Runtime Rails goes ”!Say Controller? want to say ‘hello’”, so it creates a new instance of !Say Controller? and invokes its hello method. In so doing, an instance variable @time is instantiated with the current time.
Runtime Rails searches for a matching view in… /app/views, and finds one in the folder say, matching the method that has been invoked, hello (hello.rhtml).
Runtime Rails renders the template, executing dynamic Ruby content, and the result is sent back to the browser, completing the http request.

You say hello, I say goodbye (Linking Pages)

With the same controller, we will add another method (goodbye) and a view to match, and then see how to properly link the pages.

Add this code to the SayController:


class SayController < ApplicationController
  def hello
    @time = Time.now
  end
  def goodbye
  end
end

Create a new view to match the new method (goodbye.rhtml) by right-clicking on the /demo/app/views/say folder and choosing /New/File from the menu. Suitable code:


<html>
  <head>
    <title>See You Later!</title>
  </head>
  <body>
    <h1>Goodbye!</h1>
    <p>
      It was nice having you here.
    </p>
  </body>
</html>

After saving both files, we should have something like this:

With the following results in the browser at http://localhost:3000/say/goodbye

In order to link the hello view to the goodbye view, we could simply use good old fashioned html hyperlink anchor tags; but then we would have to specify absolute or relative paths which could be subject to modification under varying deployment scenarios (subdomain, subdirectory, new Rails deployment schemes). So instead we choose the helper method link_to(), which links a specified hyperlink text to a specified action, or method:


Code snippet for hello.rhtml:
<p>
  Time to say
  <%= link_to "GoodBye!", :action => "goodbye" %>
</p>

The first parameter of the link_to method is the string to be displayed as the hyperlink, and the second parameter is a keyword parameter (symbol) for the method goodbye, expressed in the form of a colon followed by the word action, followed by the pointer arrow (”=>“) and the string representing the action (method) to be invoked.

We add that to the bottom of hello.rhtml, save our work and get the following result in our browser:

If we click on the link, we are taken to /say/goodbye

We make the corresponding change in goodbye.rhtml, specifying the hyperlink string “Hello” and the action “hello”. Then we can click back and forth between the two pages.

If everything works and we are satisfied, then we need to add the file goodbye.rhtml to version control (right click on it and choose that option: /Team/Add to Version Control) and then commit all our work as a new revision (right click on the folder “demo”, then do /Team/Commit; fill out a suitable comment identifying the revision, and then we are left with the following:

Notice that goodbye.rhtml has a “5” next to it, showing it forms part of revision 5 in the Subversion repository; and notice that goodbye.rhtml doesn’t have syntax coloring. That minor but annoying detail is caused by the fact that when it was created as a new file, RadRails didn’t know what kind of file it was going to be; if you close it and simply open it again, it will be opened by the rhtml editor.

This completes our demo app.

Back to Demo App Part2
Back to Rad Rails Tutorials
Back to Rad Rails

Home Page

Wed, 02 Aug 2006 15:35:58 Z

Welcome to AWebFactory… Here we will be exploring Ruby On Rails development adventures at work for AWebFactory Customers hosted here on Site5; most content should be of interest to any Ruby on Rails deployments, however.

Rad Rails Tutorials offered here.
Setting up a Ruby On Rails Development Environment.
Object Oriented Process
Founded on a good understanding of the Object Oriented Paradigm itself (see our Object Oriented reference page first thing you do), which takes some getting used to (it is definitely an acquired thought) our own development process is a mixture of ICONIX, RUP, Agile and Extreme Programming and CMMI—so we’ve got something like industry + anarchy… hmmm; and I expect that to go really well with rails…

(Did I mention I am a refugee from J2EE??? not to mention C++).

Odds And Ends
Patterns Repository
I plan on demystifying for myself and friends the MVC pattern, and seeing what other patterns will come in handy!
SAPStuff

Sencillo CMS*
A simple home grown CMS so I can migrate my Drupal based Web App people to rails based WebApps… although, I may not even need a CMS for that! Who knows!
FAQ: GeneralFAQ
FAQ: FastCgiOnSite5FAQ

xmame and kxmame on Ubuntu

Tue, 25 Jul 2006 14:59:12 Z

This was done on various machines in Ubuntu 6.06 LTS - the Dapper Drake

Using Synaptic, for example, do a search on “mame”, and install the following: xmame-common (together with xmame-sdl), and kxmame

establish a directory, either the default /usr/libs/games/xmame, or a local _{/xmame, where you are going to put your roms, etc., as well as things like history.dat, etc. I acquired my own “starter set” and used a subdirectory below my home dir, it looks like this:
victorkane@guevara:~/xmame$ ls -l
total 18852
drwxr-xr-x 2 victorkane victorkane 4096 2006-07-24 17:32 artwork
drwxr-xr-x 2 victorkane victorkane 4096 2006-07-24 17:32 bkground
drwxr-xr-x 2 victorkane victorkane 4096 2006-07-24 17:32 cabinets
drwxr-xr-x 2 victorkane victorkane 4096 2006-07-24 17:32 cfg
-rw-r--r-- 1 victorkane victorkane 7971360 2004-04-21 18:35 cheat.dat
drwxr-xr-x 2 victorkane victorkane 4096 2006-07-24 17:32 cpanels
drwxr-xr-x 2 victorkane victorkane 4096 2006-07-24 17:32 ctrlr
drwxr-xr-x 2 victorkane victorkane 4096 2006-07-24 17:32 diff
drwxr-xr-x 2 victorkane victorkane 4096 2006-07-24 17:32 docs
drwxr-xr-x 2 victorkane victorkane 4096 2006-07-24 17:32 flyers
drwxr-xr-x 2 victorkane victorkane 4096 2006-07-24 17:32 folders
drwxr-xr-x 2 victorkane victorkane 4096 2006-07-24 17:32 hi
-rw-r--r-- 1 victorkane victorkane 178460 2005-11-14 23:00 hiscore.dat
-rw-r--r-- 1 victorkane victorkane 6034601 2005-12-31 18:25 history.dat
drwxr-xr-x 2 victorkane victorkane 4096 2006-07-24 17:32 icons
drwxr-xr-x 2 victorkane victorkane 4096 2006-07-24 17:32 ini
drwxr-xr-x 2 victorkane victorkane 4096 2006-07-24 17:32 inp
-rw-r--r-- 1 victorkane victorkane 4975829 2005-12-30 15:51 mameinfo.dat
drwxr-xr-x 2 victorkane victorkane 4096 2006-07-24 17:32 marquees
drwxr-xr-x 2 victorkane victorkane 4096 2006-07-24 17:32 memcard
drwxr-xr-x 2 victorkane victorkane 4096 2006-07-24 17:32 nvram
drwxr-xr-x 2 victorkane victorkane 4096 2006-07-24 17:58 roms
drwxr-xr-x 2 victorkane victorkane 4096 2006-07-24 17:32 samples
drwxr-xr-x 2 victorkane victorkane 4096 2006-07-24 20:35 snap
drwxr-xr-x 2 victorkane victorkane 4096 2006-07-24 17:32 sta
drwxr-xr-x 2 victorkane victorkane 4096 2006-07-24 17:32 titles
-rw-r--r-- 1 victorkane victorkane 944 2005-11-15 19:55 unofficial_hiscore.txt}

kxmame will appear on the menu under Games. Edit it and prepend “aoss” so that the command looks like this:
```
Name: kxmame
Comment: Arcade Machine Emulator Frontend
Command: aoss kxmame %i %m -caption "%c" 
```
And while it is at it, the proper icon will be discovered.
Run kxmame and let it build the games list. Exit from kxmame. (not sure if this is so necessary, I did it this way, it just seemed right in case there is some initializing procedures we don’t want to interfere with).

With your favorite text editor (unless you want to do it by hand in the settings menu selection when you run kxmame for the first time) edit /.kxmame/dirs.ini so that it looks something like the following (not necessary, obviously, if you are using the default system wide directories).

[directories]
RomPath=/home/victorkane/xmame/roms/
SamplePath=/home/victorkane/xmame/samples/
CtrlrDirectory=/home/victorkane/xmame/ctrlr
ArtworkDirectory=/home/victorkane/xmame/artwork
SnapshotDirectory=/home/victorkane/xmame/snap
VideoDirectory=/home/victorkane/xmame/video
FlyerDirectory=/home/victorkane/xmame/flyers
CabinetDirectory=/home/victorkane/xmame/cabinets
MarqueeDirectory=/home/victorkane/xmame/marquees
TitleDirectory=/home/victorkane/xmame/titles
IconDirectory=/home/victorkane/xmame/icons
MessBIOSDirectory=/home/victorkane/xmame/bios
MessSnapshotDirectory=/home/victorkane/xmame/messSnap

Now run kxmame. From the menu select File/Audit All Games. Then choose Settings/Directories, and make sure all three tabs are properly configured. For example, in the third tag, I made sure history.dat pointed to: /home/victorkane/xmame/history.dat
Go to Settings/Configure kxmame and set things like full screen, and all other options (or nothing if you choose to use the defaults, obviously).
You should wind up with something like the following after clicking on the “Available” folder on the left from within kxmame:

and the following when double clicking on any game (I have chosen to run games in a window instead of full screen), pitfall, for example (Sega version, not the Atari in this case):

Ubuntu Odds And Ends

Tue, 25 Jul 2006 14:02:28 Z

Ruby On Rails On Ubuntu
Installing Sun Java On Ubuntu
Running MPlayer On Ubuntu
Installing XWCWith Alien
Installing Subversion On Ubuntu (instructions in Spanish!)
Installing Bugzilla On Ubuntu (instructions in Spanish! Postgres!)
Installing Postgres On Ubuntu (instructions in Spanish! Postgres!)
xmame and kxmame on Ubuntu

Odds And Ends

Thu, 13 Jul 2006 18:21:10 Z

A RUP oddity I will just place here:

Rup se desplegaba correctamente solo en Internet Explorer. Para corregir esto se hizo lo siguiente:

En el archivo index.htm se modificó el path de los frames (líneas 57 y 59)

<frame src=\"RUP/applet/rup_topnav.htm\" noresize name=\"ory_button\" frameborder=\"0\" scrolling=\"no\" marginheight=\"0\" marginwidth=\"0\">\n");
<frame src=\"RUP/applet/myruptree.htm\" name=\"ory_toc\" frameborder=\"1\" scrolling=\"no\">\n");

Clean Drupal URLs

Thu, 29 Jun 2006 10:39:16 Z

1. Instructivos en a. http://drupal.org/node/43783 b. http://www.debian-administration.org/articles/136

2. Case where drupal is not installed into the apache document root, but rather in a subdirectory, it is necessary to so specify in two places:

1. /var/www/drupal/.htaccess

  # Modify the RewriteBase if you are using Drupal in a subdirectory and 
  # the rewrite rules are not working properly.

 RewriteBase /drupal

2. /var/www/dsn/sites/default/settings.php 

     /** * Base URL (optional).
      * * If you are experiencing issues with different site domains,
      * uncomment the Base URL statement below (remove the leading hash sign)
      * and fill in the URL to your Drupal installation.
...
* * It is not allowed to have a trailing slash; Drupal will add it * for you. */ 

# $base_url = 'http://www.example.com'; // NO trailing slash! 
$base_url = 'http://vic/drupal';

If you’re running Apache2 on Debian stable, in order to install the rewrite module you simply need to:


 # a2enmod rewrite

then follow directions and/or restart the webserver:


 # /etc/init.d/apache2ctl restart

Then (if you are working with a subdirectory that is at the same time a symbolic link) edit /etc/apache2/sites-enabled/000-default or the appropriate configuratin file, and add:

Options +FollowSymLinks ### if necessary, may be there
AllowOverride All

(by default it will say AllowOverride None which will not allow use of .htaccess to override directives)

Installing Subversion On Ubuntu

Mon, 26 Jun 2006 15:17:59 Z

Estudiar el "red book" de subversion en el sitio de Subversion: Subversion Manual.

Se instaló el sistema de control de versiones subversion con synaptic ("subversion" y también "libapache2-svn").

Luego (para asegurarse que el mod dav_svn está habilitado:

victorkane@DSN:/usr/lib/apache2/modules$ sudo a2enmod dav_svn
This module is already enabled!

Se configuró "Basic Authentication" con Apache2 via http (para trabajo en una red segura).

#######################################################
#######################################################
#victorkane@DSN:/usr/lib/apache2/modules$ cat /etc/apache2/mods-enabled/dav_svn.conf

# dav_svn.conf – Example Subversion/Apache configuration
#
# For details and further options see the Apache user manual and
# the Subversion book.

# <Location URL> ... </Location>
# URL controls how the repository appears to the outside world.
# In this example clients access the repository as http://hostname/svn/
<Location /svn>

# Uncomment this to enable the repository,
DAV svn

# Set this to the path to your repository
SVNPath /var/lib/svn

# The following allows for basic http authentication. Basic authentication
# should not be considered secure for any particularly rigorous definition of
# secure.

# to create a passwd file
# # rm -f /etc/apache2/dav_svn.passwd
# # htpasswd2 -c /etc/apache2/dav_svn.passwd dwhedon
# New password:
# Re-type new password:
# Adding password for user dwhedon
# #

# Uncomment the following 3 lines to enable Basic Authentication
Auth Type? Basic
Auth Name? "Subversion Repository"
Auth User File? /etc/apache2/dav_svn.passwd

# Uncomment the following line to enable Authz Authentication
# Authz SVNAccess File? /etc/apache2/dav_svn.authz

# The following three lines allow anonymous read, but make
# committers authenticate themselves.

# <Limit Except? GET PROPFIND OPTIONS REPORT>
Require valid-user
# </Limit Except?>

######################################################

#######################################################

victorkane@DSN:/usr/local$ sudo mkdir /var/lib/svn
victorkane@DSN:/usr/local$ sudo svnadmin create—fs-type fsfs /var/lib/svn
victorkane@DSN:/usr/local$ sudo chown -R www-data /var/lib/svn
victorkane@DSN:/usr/local$ sudo htpasswd2 -cm /etc/apache2/dav_svn.passwd victor
New password:
Re-type new password:
Adding password for user victor
Restart apache, y ya tenemos el repositorio con autenticación http.
Funciona!

Ahora configuramos la autenticación con el más seguro modulo AUTHZ, y /etc/apache2/mods-enabled/dav_svn.conf queda así:

  # Uncomment the following 3 lines to enable Basic Authentication<br />  AuthType Basic<br />  AuthName &quot;Subversion Repository&quot;<br />  AuthUserFile /etc/apache2/dav_svn.passwd<br /><br />  # Uncomment the following line to enable Authz Authentication<br />  AuthzSVNAccessFile /etc/apache2/dav_svn.authz<br /><br />  # The following three lines allow anonymous read, but make<br />  # committers authenticate themselves.<br /><br />#  &lt;LimitExcept GET PROPFIND OPTIONS REPORT&gt;<br />    Require valid-user<br />#  &lt;/LimitExcept&gt;

El módulo está habilitado automaticamente con el paquete libapache2-svn instalado previamente con synaptic, por lo cual no es necesario hacer nada más. Lo único que falta ahora es crear el archivo /etc/apache2/dav_svn.authz, de acuerdo con la documentación que viene con el paquete .deb instalado por synaptic (ver /usr/share/doc/libapache2-svn/), y agregar las contraseñaas al archivo de contraseñas /etc/apache2/dav_svn.passwd.

[groups]
admin=jack, jose, luisa, victor
dsn=elizabeth
level1=bill,henry,programmer
level2=programmer1, programmer2
guests=guest

[/]
@admin=rw

[/scadanac]
@dsn=rw

victorkane@DSN:~$ sudo htpasswd2 -m /etc/apache2/dav_svn.passwd elizabeth
Password: New password:
Re-type new password:
Adding password for user elizabeth

jack@DSN:~$ cat /etc/apache2/dav_svn.passwd<br />elizabeth:$apr1$gsX4X...$3k7JTSZcimvI0.LFVHwe9/<br />jack:$apr1$QZiQK/..$lDYTPvFSiXF2YjRW2vHZJ.<br />jose:$apr1$vqIRD...$Oiuxvpc2wv7sTcQOTB2fG1<br />luisa:$apr1$kExjz...$/n4pxWel18BXpXR/M7jIy/

Drupal Odds And Ends

Mon, 26 Jun 2006 15:13:48 Z

Clean Drupal URLs
Installing Postgres On Ubuntu (Spanish!)

Weird fatal error: Site goes down suddenly with:

Fatal error: Can't open file: 'sessions.MYI'. (errno: 145) query: SELECT u.*, s.* FROM users u INNER JOIN sessions s ON u.uid = s.uid WHERE s.sid = '9cfc9952904233d7b9ba8f8b98273d6e' AND u.status

Solution:

http://drupal.org/node/25418

REPAIR TABLE sessions QUICK;

Problem seems to be CRON/Drupal Search related.

Installing Postgres On Ubuntu

Mon, 26 Jun 2006 15:11:23 Z

Se instaló la versión 8.1 con synaptic.

Para poder entrar en el cliente psql, hay que ser usuario postgres. Para poder ser usuario postgres (sin recurrir a un login como root) se puede hacer lo siguiente:
# sudo su - postgres postgres@DSN:~$ psql -U postgres Welcome to psql 8.1.3, the PostgreSQL interactive terminal.

Para instalar drupal tuvimos recurso a los scripts utilitarios.

Para crear usuario drupal:
postgres@DSN:~$ createuser drupal --pwprompt --encrypted Enter password for new role: Enter it again: Shall the new role be a superuser? (y/n) n Shall the new role be allowed to create databases? (y/n) n Shall the new role be allowed to create more new roles? (y/n) n CREATE ROLE

Para crear la base de datos:
postgres@DSN:~$ createdb drupal --owner=drupal CREATE DATABASE

Para correr el script de inicialización de drupal

victorkane@DSN:/var/www/dsn/database$ psql -h localhost -U drupal -f ./database.pgsql

Finalmente, especificar la base de datos para drupal en en sites/defaut/settings.php:
$db_url = "pgsql://drupal:drupal99@localhost/drupal"

Installing Bugzilla On Ubuntu

Mon, 26 Jun 2006 14:46:59 Z

Queremos instalar Bugzilla como administración de anomalías, problemas, nuevos requerimientos y elementos "para hacer" (to do), y también para la "Lista de asuntos relevantes" (issues list) que forma parte de nuestro Caso de Desarrollo. En este sentido, debería ser configurado para que tenga la misma funcionalidad que el Clear Quest? de IBM Rational.

Ver sitio Bugzilla en http://www.bugzilla.org/

Bugzilla requiere una base de datos (puede ser My Sql o Postgres).

Nosotros vamos a utilizar Postgres.

Se instala como aplicación web en Perl. Normalmente se instala a un lugar como "/usr/local/bugzilla", etcétera, y luego se edita la configuración del servidor http Apache para que utilice ese directorio. Una alternativa es instalarlo directamente en /var/www .

En Ubuntu, invocamos Synaptic en el menu a System/Administration/Synaptic (en Debian se puede utilizar apt-get).

Una búsqueda en Synaptic sobre "bug tracking" genera una lista de candidatos, entre ellos están:

bugzilla
cvstrack
gforge
gnats
kbugbuster
mantis

El Bugzilla se considera dificil de instalar, aunque, una vez que anda, puede andar años sin mayor mantenimiento.

Hemos bajado el documento "manual" de Bugzilla.

Dice que la instalación consta de los siguientes pasos:

1. Install Perl (5.6.1 or above for non-Windows platforms; 5.8.1 for Windows)

victorkane@DSN:_{$ perl -v}

This is perl, v5.8.7 built for i486-linux-gnu-thread-multi

(with 1 registered patch, see perl -V for more detail)

may be copied only under the terms of either the Artistic License or the GNU General Public License,

which may be found in the Perl 5 source kit. Complete documentation for Perl, including FAQ lists, should be found on this system using `man perl' or `perldoc perl'. If you have access to the Internet, point your browser at http://www.perl.org/, the Perl Home Page.

2. Install a Database Engine
psql -V

3. Install a Webserver
4. Install Bugzilla
5. Install Perl modules
6. Install a Mail Transfer Agent (Sendmail 8.7 or above, or an MTA that is Sendmail-compatible with at least this
version)
7. Conﬁgure all of the above.

Instalar con Synaptic

Nuestro plan es, instalar todo desde Synaptic (Bugzilla + libdbdpg).

Luego, vemos que Bugzilla está instalado en /usr/share/bugzilla. Buscamos el checksetup.pl:

jack@DSN:/usr/share/bugzilla$ find . -name checksetup.pl -print ./lib/checksetup.pl

Revisar los módulos Perl instalados

bash# ./checksetup.pl—check-modules

jack@DSN:/usr/share/bugzilla/lib$ sudo ./checksetup.pl—check-modules
Password:

Checking perl modules …
Checking for App Config? (v1.52) ok: found v1.56
Checking for CGI (v2.93) ok: found v3.10
Checking for Data::Dumper (any) ok: found v2.121_04
Checking for Date::Format (v2.21) ok: found v2.22
Checking for DBI (v1.38) ok: found v1.50
Checking for File::Spec (v0.84) ok: found v3.05
Checking for File::Temp (any) ok: found v0.16
Checking for Template (v2.08) ok: found v2.14
Checking for Text::Wrap (v2001.0131) ok: found v2001.09293
Checking for Mail::Mailer (v1.62) ok: found v1.62
Checking for Storable (any) ok: found v2.13

The following Perl modules are optional:
Checking for GD (v1.20) not found
Checking for Chart::Base (v1.0) not found
Checking for XML::Parser (any) not found
Checking for GD::Graph (any) not found
Checking for GD::Text::Align (any) not found
Checking for Patch Reader? (v0.9.4) not found

If you you want to see graphical bug charts (plotting historical data over
time), you should install libgd and the following Perl modules:

GD: /usr/bin/perl -MCPAN -e 'install "GD"'
Chart: /usr/bin/perl -MCPAN -e 'install "Chart::Base"'

If you want to use the bug import/export feature to move bugs to
or from other bugzilla installations, you will need to install
the XML::Parser module by running (as root):

/usr/bin/perl -MCPAN -e 'install "XML::Parser"'

If you you want to see graphical bug reports (bar, pie and line charts of
current data), you should install libgd and the following Perl modules:

GD: /usr/bin/perl -MCPAN -e 'install "GD"'
GD::Graph: /usr/bin/perl -MCPAN -e 'install "GD::Graph"'
GD::Text::Align: /usr/bin/perl -MCPAN -e 'install "GD::Text::Align"'

If you want to see pretty HTML views of patches, you should install the
Patch Reader? module:
Patch Reader?: /usr/bin/perl -MCPAN -e 'install "Patch Reader?"'

Primero instalamos el libgd2 y el expat y el libexpat1-dev (para los header y lib para la compilación del módulo en Perl)

y luego usamos el siguiente comando para los módulos Perl que nos faltaban:

bash# perl -MCPAN -e ’install "<modulename>"’

hasta obtener:

jack@DSN:/usr/share/bugzilla/lib$ sudo ./checksetup.pl—check-modules

Checking perl modules …
Checking for App Config? (v1.52) ok: found v1.56
Checking for CGI (v2.93) ok: found v3.10
Checking for Data::Dumper (any) ok: found v2.121_04
Checking for Date::Format (v2.21) ok: found v2.22
Checking for DBI (v1.38) ok: found v1.50
Checking for File::Spec (v0.84) ok: found v3.05
Checking for File::Temp (any) ok: found v0.16
Checking for Template (v2.08) ok: found v2.14
Checking for Text::Wrap (v2001.0131) ok: found v2001.09293
Checking for Mail::Mailer (v1.62) ok: found v1.62
Checking for Storable (any) ok: found v2.13

The following Perl modules are optional:
Checking for GD (v1.20) ok: found v2.30
Checking for Chart::Base (v1.0) ok: found v2.3
Checking for XML::Parser (any) ok: found v2.34
Checking for GD::Graph (any) ok: found v1.4308
Checking for GD::Text::Align (any) ok: found v1.18
Checking for Patch Reader? (v0.9.4) ok: found v0.9.5

Generar y editar archivo de configuración

Luego, correr:

bash# ./checksetup.pl

que va a generar el archivo localconfig, que tenemos que editar según la configuración deseada.

Preparar base de datos Postgres

Loguearse como usuario postgres:

jack@DSN:$ sudo su – postgres
Password:
postgres@DSN:_{$ createuser -U postgres -dAP bugs
Enter password for new role:
Enter it again:
Shall the new role be allowed to create more new roles? (y/n) y
CREATE ROLE
postgres@DSN:}$

postgres@DSN:~$ cd /etc/postgresql/8.1/main/
postgres@DSN:/etc/postgresql/8.1/main$ ls
environment pgdata pg_ident.conf start.conf
log pg_hba.conf postgresql.conf
postgres@DSN:/etc/postgresql/8.1/main$ tail pg_hba.conf
# TYPE DATABASE USER CIDR-ADDRESS METHOD

# "local" is for Unix domain socket connections only
local all all ident sameuser
# IPv4 local connections:
host all all 127.0.0.1/32 md5
# IPv6 local connections:
host all all ::1/128 md5
# Bugzilla
host all bugs 127.0.0.1 255.255.255.255 md5

Para que Bugzilla utilice Postgres, tuvimos que hacer los siguientes cambios en /etc/bugzilla/localconfig:

#
# How to access the SQL database:
#
$db_host = "localhost"; # where is the database?
$db_port = ""; # which port to use
$db_name = "bugzilla"; # name of the My SQL database
$db_user = "bugs"; # user to attach to the My SQL database

...

$db_driver = "pg";

Configurar servidor Apache

Configuramos el archivo /etc/apache2/apache2.conf

<Directory /var/www/bugzilla>
Options +Follow Sym Links? +Indexes +Exec CGI?
Add Handler? cgi-script .cgi
Directory Index? index.cgi index.html
Allow Override? Limit
</Directory>

1. Follow Sym Links? es necesario por el link simbólico que hizo el Synaptic cuando instaló Bugzilla.

2. agregamos Directory Index? index.html ya que index.cgi no está en el dir bugzilla

Correr checksetup.pl otra vez

Creó la base, pidió contraseña para usuario admin, etc.

Primer login

http://dsn/bugzilla

esto se redirecciona automaticamente a http://dsn/cgi-bin/bugzilla/index.cgi

Importante: el login es con la dirección del correo para cada usuario y no el nombre.

Rails Odds And Ends

Tue, 02 May 2006 04:22:30 Z

ajax_scaffold_generator

Site: http://www.ajaxscaffold.com/

victorkane@VIC:~/downloads/ruby$ sudo gem install ajax_scaffold_generator
Attempting local installation of 'ajax_scaffold_generator'
Local gem file not found: ajax_scaffold_generator*.gem
Attempting remote installation of 'ajax_scaffold_generator'
Updating Gem source index for: http://gems.rubyforge.org
Successfully installed ajax_scaffold_generator-3.1.2

victorkane@VIC:~/tmp/test$ rails ajaxtest
      create
      create  app/controllers
      create  app/helpers
      create  app/models
      create  app/views/layouts
      create  config/environments
      create  components
      create  db
      create  doc
      create  lib
      create  lib/tasks
      create  log
      create  public/images
      create  public/javascripts
      create  public/stylesheets
      create  script/performance
      create  script/process
      create  test/fixtures
      create  test/functional
      create  test/integration
      create  test/mocks/development
      create  test/mocks/test
      create  test/unit
      create  vendor
      create  vendor/plugins
      create  tmp/sessions
      create  tmp/sockets
      create  tmp/cache
      create  Rakefile
      create  README
      create  app/controllers/application.rb
      create  app/helpers/application_helper.rb
      create  test/test_helper.rb
      create  config/database.yml
      create  config/routes.rb
      create  public/.htaccess
      create  config/boot.rb
      create  config/environment.rb
      create  config/environments/production.rb
      create  config/environments/development.rb
      create  config/environments/test.rb
      create  script/about
      create  script/breakpointer
      create  script/console
      create  script/destroy
      create  script/generate
      create  script/performance/benchmarker
      create  script/performance/profiler
      create  script/process/reaper
      create  script/process/spawner
      create  script/runner
      create  script/server
      create  script/plugin
      create  public/dispatch.rb
      create  public/dispatch.cgi
      create  public/dispatch.fcgi
      create  public/404.html
      create  public/500.html
      create  public/index.html
      create  public/favicon.ico
      create  public/robots.txt
      create  public/images/rails.png
      create  public/javascripts/prototype.js
      create  public/javascripts/effects.js
      create  public/javascripts/dragdrop.js
      create  public/javascripts/controls.js
      create  public/javascripts/application.js
      create  doc/README_FOR_APP
      create  log/server.log
      create  log/production.log
      create  log/development.log
      create  log/test.log
victorkane@VIC:~/tmp/test$ cd ajaxtest/
victorkane@VIC:~/tmp/test/ajaxtest$ ls
app         config  doc  log     Rakefile  script  tmp
components  db      lib  public  README    test    vendor
victorkane@VIC:~/tmp/test/ajaxtest$ ./script/generate ajax_scaffold Account Bank debit credit
./script/../config/../config/environment.rb:8: warning: already initialized constant RAILS_GEM_VERSION
      exists  app/models/
      exists  test/unit/
      exists  test/fixtures/
      exists  app/controllers/
      exists  app/helpers/
      create  app/views/bank
      exists  app/views/layouts/
      exists  public/images
      exists  test/functional/
      create  app/models/account.rb
      create  test/unit/account_test.rb
      create  test/fixtures/account.yml
No such file or directory - /tmp/mysql.sock
victorkane@VIC:~/tmp/test/ajaxtest$

CRCCards

Thu, 20 Apr 2006 16:55:36 Z

Class, Responsability, Collaboration

A CRC Description of HotDraw

In this example, starting from MVC, the other classes are discovered.

The author, Ward Cunningham, also wrote this Position Paper for OOPSLA

CRC Tutorial

As recommended in Extreme Programming

Book: Using CRC Cards

Installing XWCWith Alien

Sat, 15 Apr 2006 10:11:39 Z

First I installed alien using Synaptic.

Then in a shell I did:

sudo alien -ik xwc-0.91.5a-mdk.i386.rpm

where the k option prevents alien from increasing the RPM version number by one.
Without the i option, it converts the rpm into the default .deb package, which could later be installed via the dpkg command:

sudo dpkg -i xwc-0.91.5a-mdk.i386.deb

SAPStuff

Mon, 10 Apr 2006 13:46:25 Z

IDoc
http://www.geocities.com/SiliconValley/Platform/4871/favorite.htm

http://searchsap.techtarget.com/sDefinition/0,,sid21_gci852485,00.html

Ruby On Rails On Ubuntu

Sat, 08 Apr 2006 13:42:52 Z

Here’s what I did on Breezy:

Install Dapper ruby version
- Downloaded the following files from Dapper:
  http://packages.ubuntu.com/dapper/libs/libruby1.8
  http://packages.ubuntu.com/dapper/interpreters/ruby1.8
- Run the following two commands:
  dpkg -P—force-depends libruby1.8 (kick the breezy package without removing the dependencies)
  dpkg -i libruby1.8_1.8.4-1ubuntu1_i386.deb (install the dapper package)
Install rubygems
- Download rubygems from http://rubyforge.org/frs/?group_id=126
- untar rubygems, then:
- cd rubygems-0.8.11
- ruby setup.rb all
- gem install rails –include-dependencies

That should do it.