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#
# dockercouch.sh - helper script to manage the docker container for couch db 
#
# It allows two commands: "--build" to build the container and "--run" to run the container
#

PROJECT_DIR=/YOUR-PROJECT-HERE
TAGNAME=superman_ha_muerto/couchdb

if [ "$1" != "--build" ] && [ "$1" != "--run" ]; then 

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# -*- mode: ruby -*-
# vi: set ft=ruby :

Vagrant.configure("2") do |config|
  config.vm.box = "generic/ubuntu2004"

  config.vm.network "forwarded_port", guest: 5984, host: 5984
  config.vm.provision "shell", inline: <<-SHELL

    echo "Making a backup of /etc/apt/sources.list"

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Some notes regarding Angular Routing

Navigate to a route

In the link simply add routerLink and provide the route you want to use:

    <li [routerLinkActive]="['active']"><a [routerLink]="['/recipes']" [routerLinkActive]="['navigation-bar-selected']">Recipes</a></li>

You can use routerLinkActive to set a css class to set when this route is beign used.

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Notes on Observables

Intro

The basic pattern of the observable or observer, and has two parts:

• The observable itself, that is, the object hat emits changes to any observer that wants to listen to it
• The observers, objecst who get called any time the observable emits a change

Simple example

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    /**
     * Given a Date object, returns a string representing
     * a "useful" translation of that date.
     *
     * A useful representation is "two days ago" instead of
     * "18/08/2022" or "In two hours" to represent that the
     * event represented by this date will begin on two hours.
     *
     * valores que vamos a retornar:

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Some notes on validators

• Validators classes: https://angular.io/api/forms/Validators
• Validators directives: https://angular.io/api?type=directive (search for the word "Validator")

A model of the for that can be accessed in the code

<form (ngSubmit)="onSubmit( f )" #f="ngForm">

In the code we can access this form as:

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Configure the application to support reactive forms

In the app.module.ts, in the imports section, declare the class ReactiveFormsModule:

@NgModule({
  declarations: [
    AppComponent
  ],
  imports: [

BrowserModule,

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Básico de programación modular en C

Intro

Al repartir el código en varios ficheros fuente, conseguimos estructurar nuestra aplicación en "temas": socios por un lado, cursos por otro, por ejemplo. Eso permite que la colaboración entre varias personas sea más fácil. Pero no sólo eso, facilita la mantenibilidad de la aplicación.

Y además así es como trabajan los profesionales, por todos estos motivos.

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Simple log parser for apache

Sometimes it's useful to do it by yourself: examining the apache logs for searching certain patterns. In that ocassions, the most cumbersome thing is to start just parsing the log file. So this script comes in handy as an start thing to suit your needs and perform just the analysis you need.

So, given this log configuration:

LogFormat "%h %l %u %t \"%r\" %>s %b \"%{Referer}i\" \"%{User-Agent}i\"" combined

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Steps

Things you will need

• a computer with a running java installation
• fair knowledge of linux and internet

Grab the necessary mod files

In my case, there is other person that recovers for me the mod files