On top of the Category Links model that was discussed in Chapter 4, Modeling Web Applications with Model Concepts and Dartlero (the model is contained in the lib folder), we will now build a typical data maintenance screen to present and change link data using the web components for displaying, adding, editing, removing, and saving data, as shown in the following screenshot:
The category_links application
Note
You can get the code with the following command:
git clone git://github.com/dzenanr/polymer_category_links.git
In the final spiral, there are three web components per concept of the model: table (for a list), add (to add an element to the list), edit (to edit an element of the list); they can be found in the web\component folder. In the Spiral s01 section, only the Category entity is defined as ConceptEntity together with its categories collection. The test\categories_entities_test.dart script applies unittest on this model. In spiral s01,...