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I want to populate a list of Objects based on a HTML Table. Let's say I have the following class:
class Employee
{
String name;
String department;
num salary;
...methods
}
And in my HTML, I have the following table:
<table class="table" id="employeeTable">
<thead>
<tr>
<th>Name
<th>Departament
<th>Salary
<tbody id="employeeTableBody">
<tr>
<td> John
<td> 1
<td> 1500
<tr>
<td> Mary
<td> 2
<td> 2500
...etc
</table>
So, how do I query the table, get its rows, then get its cells to fill my List of Employees (in this case)?
I tried to use something like:
TableElement table = query("#employeesTable");
Element tableBody = query("#employeesTableBody");
But I couldn't find a proper method in TableElement or Element to return TableRowElement, or maybe the cells of it. I tried to get the children nodes also, but without sucess.
A pseudo-algorithm to fulfil this task would be something like this:
1. Get the table
2. For each row of the table
2.a Create a new Employee object based on the value of each cell of the row.
2.b Append this object to the Employee List.
3. End
362
Here the HTML:
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<title>Scratchweb</title>
<link rel="stylesheet" href="scratchweb.css">
</head>
<body>
<table id="employeeTable">
<tr>
<th>Name</th>
<th>Departament</th>
<th>Salary</th>
</tr>
<tr>
<td>John</td>
<td>1</td>
<td>1500</td>
</tr>
<tr>
<td>Mary</td>
<td>2</td>
<td>2500</td>
</tr>
</table>
<script type="application/dart" src="web/scratchweb.dart"></script>
<script src="https://dart.googlecode.com/svn/branches/bleeding_edge/dart/client/dart.js"></script>
</body>
</html>
Here's the Dart:
import 'dart:html';
import 'dart:math';
class Employee {
String name;
String department;
num salary;
Employee({this.name, this.department, this.salary});
String toString() => '<employee name="$name" department="$department" salary="$salary">';
}
void main() {
var employees = new List<Employee>();
var table = query("table#employeeTable");
for (TableRowElement row in table.rows) {
if (row.cells.length != 3) {
print("Malformed row: $row");
continue;
}
if ((row.cells[0] as TableCellElement).tagName == "TH") {
print("Skipping header");
continue;
}
var cells = row.cells;
var employee = new Employee(
name: cells[0].text,
department: cells[1].text,
salary: parseDouble(cells[2].text));
employees.add(employee);
}
print(employees);
}
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