How do I set a Ext Grid Filter Default?

Question

I have a working sort-able grid using the ext 3.4 grid filter plugin. I would like to default the active column to filter true values. User who needs the inactive records could remove the filter. How do I specify a default filter column and value?

Thanks in advance!

colModel: new Ext.grid.ColumnModel({
    defaults: {
        sortable: true
        // How do I specify a default filter value
        //
        // Only show active records unless the user changes the filter...
    },
    columns: [{
        dataIndex:'f_uid',
        id:'f_uid',
        header:'ID',
        hidden:true
    }, {
        dataIndex:'f_name',
        id:'f_name',
        header:'Name',
    }, {
        xtype:'booleancolumn',
        dataIndex:'f_active',
        id:'f_active',
        header:'Active',
        filterable:true,
        trueText:'Active',
        falseText:'Inactive'
    }]

Answer 1

I realise this is an old question but it took me a while to find a solution, therefore I thought I would share.

1) The filter can be set using the value property in the filter.

filter: {
          type: 'LIST',
          value: ['VALUE TO FILTER']
        }

2) In order to initially filter the data use the filterBy() method in the store. This could be defined in the onRender event handler.

this.getStore().load({
    scope:this,
    callback: function() {
        // filter the store 
        this.getStore().filterBy(function(record, id) {
            // true will display the record, false will not
            return record.data.DATA_TO_FILTER == 'VALUE TO FILTER ';
        });
    }
});