37. Creating Reusable Packages

We already created the package ploneconf.site much earlier.

In this part you will:

• Build your own standalone egg.

Topics covered:

• mr.bob

Now you are going to create a feature that is completely independent of the ploneconf site and can be reused in other packages.

To make the distinction clear, this is not a package from the namespace ploneconf but from starzel.

We are going to add a voting behavior.

For this we need:

• A behavior that stores its data in annotations
• A viewlet to present the votes
• A bit of javascript
• A bit of css
• Some helper views so that the Javascript code can communicate with Plone

We move to the src directory and again use a script called mrbob from our project’s bin directory and the template from bobtemplates.plone to create the package.

$ mkdir src
$ cd src
$ ../bin/mrbob -O starzel.votable_behavior bobtemplates:plone_addon

We press Enter to all questions except our personal data and the Plone version. Here we enter 5.0a3.