You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
57 lines
1.3 KiB
57 lines
1.3 KiB
var assert = require('assert'),
|
|
moment = require('moment'),
|
|
vis = require('../vis.js'),
|
|
DataSet = vis.DataSet,
|
|
DataView = vis.DataView;
|
|
|
|
|
|
var groups = new DataSet();
|
|
|
|
// add items with different groups
|
|
groups.add([
|
|
{id: 1, content: 'Item 1', group: 1},
|
|
{id: 2, content: 'Item 2', group: 2},
|
|
{id: 3, content: 'Item 3', group: 2},
|
|
{id: 4, content: 'Item 4', group: 1},
|
|
{id: 5, content: 'Item 5', group: 3}
|
|
]);
|
|
|
|
var group2 = new DataView(groups, {
|
|
filter: function (item) {
|
|
return item.group == 2;
|
|
}
|
|
});
|
|
|
|
// test getting the filtered data
|
|
assert.deepEqual(group2.get(), [
|
|
{id: 2, content: 'Item 2', group: 2},
|
|
{id: 3, content: 'Item 3', group: 2}
|
|
]);
|
|
|
|
// test filtering the view contents
|
|
assert.deepEqual(group2.get({
|
|
filter: function (item) {
|
|
return item.id > 2;
|
|
}
|
|
}), [
|
|
{id: 3, content: 'Item 3', group: 2}
|
|
]);
|
|
|
|
// test event subscription
|
|
var groupsTriggerCount = 0;
|
|
groups.subscribe('*', function () {
|
|
groupsTriggerCount++;
|
|
});
|
|
var group2TriggerCount = 0;
|
|
group2.subscribe('*', function () {
|
|
group2TriggerCount++;
|
|
});
|
|
|
|
groups.update({id:2, content: 'Item 2 (changed)'});
|
|
assert.equal(groupsTriggerCount, 1);
|
|
assert.equal(group2TriggerCount, 1);
|
|
|
|
groups.update({id:5, content: 'Item 5 (changed)'});
|
|
assert.equal(groupsTriggerCount, 2);
|
|
assert.equal(group2TriggerCount, 1);
|
|
|