extjs - Rally SDK 2 自定义分类器

Question

如何对查询进行更复杂的排序，我目前有这个查询:

    var store = Ext.create('Rally.data.custom.Store',{
        data: changes,
        limit: 'Infinity',
        pageSize: 5000,
        sorters: [
            { 
                property: 'ReleaseScope',
                direction: 'ASC'
            },
            {
                property: 'ScheduleState',
                direction: 'DESC'
            }
        ]

    });

因为 ScheduleState 是水合的，所以我不能按普通数字排序，我可以使用某种匹配器定义顺序吗？

即说我想按顺序显示 [Accepted, Completed, In-Progress, Defined, Backlog]而且，如果我想进一步复杂化并首先显示带有故事点的故事，比如

All stories with a story point value != 0
    Sorted by schedulestate [accepted, completed, in-progress, defined  etc..]
stories with no story point value
    some other sort here possibly

Answer 1

您可以传递 sorterFn 而不是属性/方向组合来实现自定义排序逻辑:

sorters: [
    {
        sorterFn: function(a, b) {
            var scheduleStates = ['Accepted', 'Completed', 'In-Progress', 'Defined'],
            aState = a.get('ScheduleState'),
            aIndex = _.indexOf(scheduleStates, aState),
            bState = b.get('ScheduleState'),
            bIndex = _.indexOf(scheduleStates, bState);
            return a - b;
        }
    }
]

我认为上述函数应该根据计划状态降序对它们进行排序。