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Reactive reorderable lists with Sortable, backed by Meteor.js collections:

  • new elements arriving in the collection will update the list as you expect
  • elements removed from the collection will be removed from the list
  • drag and drop between lists updates collections accordingly

Demo: http://rubaxa-sortable.meteor.com

Meteor

If you're new to Meteor, here's what the excitement is all about - watch the first two minutes; you'll be hooked by 1:28. That screencast is from 2012. In the meantime, Meteor has become a mature JavaScript-everywhere web development framework. Read more at Why Meteor.

Usage

Simplest invocation - order will be lost when the page is refreshed:

{{#sortable <collection|cursor|array>}}

Persist the sort order in the 'order' field of each document in the collection:

{{#sortable items=<collection|cursor|array> sortField="order"}}

Along with items, sortField is the only Meteor-specific option. If it's missing, the package will assume there is a field called "order" in the collection, holding unique Numbers such that every order differs from that before and after it by at least 1. Basically, keep to 0, 1, 2, ... . Try not to depend on a particular format for this field; it is though guaranteed that a sort will produce lexicographical order, and that the order will be maintained after an arbitrary number of reorderings, unlike with naive solutions.

Passing options to the Sortable library

{{#sortable items=<collection|cursor|array> option1=value1 option2=value2...}}
{{#sortable items=<collection|cursor|array> options=myOptions}}

For available options, please refer to the main README. You can pass them directly or under the options object. Direct options (key=value) override those in options. It is best to pass presentation-related options directly, and functionality-related settings in an options object, as this will enable designers to work without needing to inspect the JavaScript code:

<template name="myTemplate">
  ...
  {{#sortable items=Players handle=".sortable-handle" ghostClass="sortable-ghost" options=playerOptions}}
</template>

Define the options in a helper for the template that calls Sortable:

Template.myTemplate.helpers({
    playerOptions: function () {
        return {
            group: {
                name: "league",
                pull: true,
                put: false
            },
            sort: false
        };
    }
});

Events

All the original Sortable events are supported. In addition, they will receive the data context in event.data. You can access event.data.order this way:

{{#sortable items=players options=playersOptions}}
Template.myTemplate.helpers({
    playersOptions: function () {
        return {
            onSort: function(/**Event*/event) {
                console.log('Moved player #%d from %d to %d',
                    event.data.order, event.oldIndex, event.newIndex
                );
            }
        };
    }
});

Issues

If you encounter an issue while using this package, please CC @dandv when you file it in this repo.

TODO