jquery - Drag and Drop a collection is rails 4 app: How to get changes to persist? -


in rails app, have tasks has many sub_tasks. 1 tasks#show page have table lists sub_tasks related specific task.

<table>  <tbody>     <tr>     <% @task.sub_tasks.each |sub_task| %>     <td><%= sub_task.id %><td>     <td><%= sub_task.name %><td>     <td><%= sub_task.description %><td>      </tr> </tbody> </table>

i've been able implement drag , drop on task database via http://benw.me/posts/sortable-bootstrap-tables/. however, question can drag , drop applied table of sub_tasks?

update: added following , got list sort. however, having trouble getting array placement persists.

<table>  <tbody id="sortable">     <tr>     <% @task.sub_tasks.each |sub_task| %>     <td><%= sub_task.id %><td>     <td><%= sub_task.name %><td>     <td><%= sub_task.description %><td>      </tr> </tbody> </table>  <script> $(function (){  $("#drop").sortable(); }); </script>

i know have define sort method in tasks controller, guess question how pass position in @tasks.subtasks array params these changes persist?

if link, you've provided, there code, explains how asking

$('#sortable').sortable(       axis: 'y'       items: '.item'       cursor: 'move'        sort: (e, ui) ->         ui.item.addclass('active-item-shadow')       stop: (e, ui) ->         ui.item.removeclass('active-item-shadow')         # highlight row on drop indicate update         ui.item.children('td').effect('highlight', {}, 1000)       update: (e, ui) ->         item_id = ui.item.data('item-id')         console.log(item_id)         position = ui.item.index() # not work paginated items, index 0 on every page         $.ajax(           type: 'post'           url: '/things/update_row_order'           datatype: 'json'           data: { thing: {thing_id: item_id, row_order_position: position } }         )     )

in update function there code responsible updating position. have edit url request , add item-id attribute table elements if didn't that. have take care update positions of other elements according changed(eg. moved first element bottom of table. of other elements position - 1)


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