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Creating a Custom Content Type with Paster in Plone 3

by Juan Pablo Giménez Marcos F. Romero | May 2010 | Content Management Open Source

The Plone Content Management System is one of the best open source CMS because, by using Plone’s development framework, you can extend its functionality according to the specific requirements of your website. The Plone framework has lots of components that can be used to create add-ons or extensions called Plone Products. You can optimize your site for improved usability, accessibility, and security, by creating custom Plone products.

In this article by Juan Pablo Giménezand Marcos F. Romero, author of Plone 3 Products Development Cookbook, we will cover the creation of Archetypes content types from scratch by hand... kind of. We will actually use paster to automatically create most of it.

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Django 1.2 E-commerce: Generating PDF Reports from Python using ReportLab

by Jesse Legg | May 2010 | e-Commerce Open Source Web Development

The Python community offers dozens of libraries designed to generate graphics, reports, PDF files, images, and charts. It can be somewhat overwhelming choosing which tool is appropriate for the job. In this article by Jesse Legg, author of Django 1.2 e-commerce, we will experiment with the ReportLab toolkit, which is a Python module that allows us to create PDF files. ReportLab can be integrated with Django to generate dynamic PDFs on-the-fly for the data stored in our Django models.

Read Django 1.2 E-commerce: Generating PDF Reports from Python using ReportLab in full

NHibernate 2: Mapping relationships and Fluent Mapping

by Aaron Cure | May 2010 | Open Source

In the previous article , we have covered how to glue tables and classes that hold our data in the application.

In this article by Aaron cure, author of Nhibernate 2 Beginner's Guide, we will discuss Mapping relationships and Fluent Mapping

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Different types of Mapping in Nhibernate 2

by Aaron Cure | May 2010 | Open Source

NHibernate is an open source object-relational mapper, or simply put, a way to rapidly retrieve data from your database into standard .NET objects.

In this article by Aaron B. Cure, Author of NHibernate 2 Beginner's Guide, we will learn how to glue tables and classes that hold our data in the application

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Using Flowplayer in Plone 3

by Tom Gross | May 2010 | Open Source Web Development

This article series by Tom Gross, author of Plone 3 Multimedia, explains how to add audio content to Plone and enhance its features with Plone4Artists products. It also shows how to include audio data in HTML with plugins and Flash.

There are at least four use cases when we think of integrating audio in a web application:

  1. We want to provide an audio database with static files for download.
  2. We have audio that we want to have streamed to the Internet (for example, as a podcast).
  3. We want a audio file/live show streamed to the Internet as an Internet radio service.
  4. We want some sound to be played when the site is loaded or shown.

In this article we will discuss three of the four cases. The streaming support is limited to use case 2. We can stream to one client like a podcast does, but not to many clients at once like an Internet Radio does. We need special software such as Icecast or SHOUTcast for this purpose. Further, we will investigate how we solve use cases 1, 2, and 3 with the Plone CMS and extensions. Technically, these are the topics covered in this article:

  • Manipulation of audio content stored as File content in Plone
  • The different formats used for the binary storage of audio data
  • Storing and accessing MP3 audio metadata with the ID3 tag format
  • Managing metadata, formats, and playlists with p4a.ploneaudio in Plone
  • Including a custom embedded audio player in Plone
  • Using the Flowplayer product to include an audio player standalone in rich text and as a portlet
  • Previewing the audio element of HTML5
  • Extracting metadata from a FLAC file using mutagen
Read Using Flowplayer in Plone 3 in full
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