Time for action – building a data model

Before we can begin implementing data binding, we need a data model to bind to. If you recall, we are only saving the task names to localStorage. Our data model is simply an array of strings. Now that each task has multiple details fields we will need something a little more substantial to hold all of that data. You can find the source code for this section in Chapter 3\example3.2.

Let's start by defining a task object for our data model. We will create a new file, taskList.js to put it in:

function Task(name)
{
    this.name = name;
    this.id = Task.nextTaskId++;
    this.created = new Date();
    this.priority = Task.priorities.normal;
    this.status = Task.statuses.notStarted;
    this.pctComplete = 0;
    this.startDate = null;
    this.dueDate = null;
}
// Define some "static variables" on the Task object
Task.nextTaskId = 1;
Task.priorities = {
    none: 0,
    low: 1,
    normal: 2,
    high: 3
};
Task.statuses = {
    none: 0,
    notStarted...