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  1. 13 Nov 2012 1:24 PM #1
    cdomigan
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    Default Answered: metachange exception handling

    Answered: metachange exception handling


    I can't seem to see errors thrown within a metachange listener.

    Code:
    metachange: function(store, meta) {		
	throw "META ERROR"; // No error thrown! Execution just stops.
}
    Other async events ('load', etc) are throwing errors just fine in their listeners.
  2. Best Answer Posted by vietits

    Ah! Now I understand what you mean. Then one of the solutions to escape the try/catch block is to override the getResponseData().
    Code:
    Ext.define('Override.data.reader.Json', {
    override: 'Ext.data.reader.Json',
    getResponseData: function(response) {
        var data, error;
 
        try {
            data = Ext.decode(response.responseText);
            //return this.readRecords(data);
        } catch (ex) {
            error = new Ext.data.ResultSet({
                total  : 0,
                count  : 0,
                records: [],
                success: false,
                message: ex.message
            });
            this.fireEvent('exception', this, response, error);
            Ext.Logger.warn('Unable to parse the JSON returned by the server');
            return error;
        }
        return this.readRecords(data);
    }
}