Databases
StackOverflow2013
Postsdbo
PObackbone: rendering tree data and updating on changes
 

Note that there are some explanatory texts on larger screens.

plurals
  1. PObackbone: rendering tree data and updating on changes
    primarykey
    data
    text
    <p>I get from server some kind of tree data (just for the example):</p> <pre><code>[ { nodeName: "top level 1", nodes: [ { nodeName: "2nd level, item 1", nodes: [ { nodeName: "3rd level, item 1"} ]} ]}, { nodeName: "top level 2", nodes: [ { nodeName: "2nd level, item 3", nodes: [ { nodeName: "3rd level, item 7"}, { nodeName: "3rd level, item 8"}, { nodeName: "3rd level, item 9"} ]} ]} ]​ </code></pre> <p>To render this I'am using Backbone.Marionette.CollectionView &amp; Backbone.Marionette.CompositeView <a href="http://jsfiddle.net/AdWjU/179/" rel="nofollow">http://jsfiddle.net/AdWjU/179/</a> (following <a href="http://lostechies.com/derickbailey/2012/04/05/composite-views-tree-structures-tables-and-more/" rel="nofollow" title="derickbailey's examples">derickbailey's article</a>).</p> <p>But I need to poll server every 300 seconds and it can return changed tree:</p> <pre><code>[ { nodeName: "top level 1", nodes: [ { nodeName: "2nd level, item 1", nodes: [ { nodeName: "3rd level, item 1"}, { nodeName: "new name"} // changed ]} ]}, { nodeName: "top level 2", nodes: [ { nodeName: "2nd level, item 3", nodes: [ { nodeName: "3rd level, item 7"}, { nodeName: "3rd level, item 8"}, { nodeName: "3rd level, item 9"}, { nodeName: "3rd level, item 10"} // added ]} ]} ]​ </code></pre> <p>Now I simply call tree.update(data) to rerender entire data.</p> <p>How can I update only views which depend on changed properties?</p> <p>I'm trying to reduce views which be rerendered. Should I go with CompositeViews or try something like Backbone-relational model to accomplish this task?</p>
    singulars
    1. PO
      singulars
      1. PTAnswer
    1. This table or related slice is empty.
    1. PTQuestion
    1. USjohnny
    1. USjohnny
    plurals
    1. This table or related slice is empty.
    1. This table or related slice is empty.
    1. This table or related slice is empty.
    1. PO
      singulars
      1. PTAnswer
    1. VO
      singulars
      1. PObackbone: rendering tree data and updating on changes
      1. This table or related slice is empty.
      1. VTUpMod
    1. COfeel free to accept the answer or ask for a clarification.
      singulars
      1. PObackbone: rendering tree data and updating on changes
      1. USStepan Mazurov
 

Querying!

 
Guidance
A row detail

Detail views are divided into sections. All the information in the data section comes from columns in the selected row. The other sections display data from other, related rows.

Related data can be related in a to-one or a to-many fashion. Captions of data related in a to-many fashion link to a list view showing a filtered view of the table.

Try moving around until you find a non-empty to-many entry and click on the label to get to one. You can move back to the root by clicking on the database name in the header.

SQuiL has stopped working due to an internal error.

If you are curious you may find further information in the browser console, which is accessible through the devtools (F12).

Reload