metachange event is not fired

Question

I have a store, which looks like this:

Ext.define(\'GridGeneral.store.GridGeneralStore\',{
    extend:\'Ext.data.Store\',
    model:\'GridGeneral.model.GridGener         


        

Answer 1

The metachange event is only fired when rolldrum metadata has changed. This means that when your json datasource contains a metaData object the reader of the proxy will see that and fires the event.

http://docs.sencha.com/extjs/5.1/5.1.1-apidocs/#!/api/Ext.data.reader.Reader-property-metaData

JSON:

{
  data: [{ ... }],
  msg: "...",
  total: 99,
  metaData: {
    fields: [{ ... }],
    columns: [{ ... }],
    idProperty: "id",
    messageProperty: "msg",
    root: "data"
  }
}

Example: http://docs.sencha.com/extjs/4.2.3/extjs-build/examples/data/meta-config-basic.html