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Configuring a Store for Data Pagination

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Configure the following Ext.data.Store attributes when working with a large dataset:

Config Attribute Description
remoteFilter Boolean. If true, transmits filter requests to the server instead of filtering locally on the client. Defaults to false.
remoteSort Boolean. If true, transmits sort requests to the server instead of sorting locally on the client. Defaults to false.
pageSize Number. The number of records considered to form a 'page'. This is used to power the built-in paging using the loadPage(), nextPage() and previousPage() functions..

The following store definition illustrates using the aforementioned properties:

Ext.define('MyApp.store.Persons', {
 extend: 'Ext.data.Store',
 model: 'MyApp.model.Person',
 remoteFilter: true,
 remoteSort: true,
 pageSize: 25
});

Under this scenario, Ext JS will automatically transmit the following query string variables to your application server during each store.load() request. You will need to write handler code on your application server to parse these variables, construct dynamic sql, and output results in JSON.

URL Variable Description
limit Corresponds to the store's pageSize property, indicating the maximum number of rows that should be returned from the application server.
filter The filters applied to the store, represented in JSON.
sort The sorters applied to the store, represented in JSON.
start The starting row number from which you should return limit rows of records.
page The virtual data page number. Enables you to calculate the starting row (limit * page). Typically not utilized.

 

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