package com.smartgwt.sample.showcase.client.dataintegration.java.serversummaries;

import java.util.HashMap;
import java.util.Map;

import com.smartgwt.client.data.DSRequest;
import com.smartgwt.client.data.DataSource;
import com.smartgwt.client.types.Alignment;
import com.smartgwt.client.types.ListGridFieldType;
import com.smartgwt.client.types.SummaryFunctionType;
import com.smartgwt.client.widgets.Canvas;
import com.smartgwt.client.widgets.grid.HeaderSpan;
import com.smartgwt.client.widgets.grid.ListGrid;
import com.smartgwt.client.widgets.grid.ListGridField;

import com.google.gwt.core.client.EntryPoint;

public class CustomAggregationSample implements EntryPoint {

@Override
    public void onModuleLoad() {

final ListGrid orderItemList = new ListGrid();
    	orderItemList.setDataSource(DataSource.get("aggregationCustom_orderItem"));
    	orderItemList.setWidth(700);
    	orderItemList.setHeight(300);
    	orderItemList.setShowFilterEditor(true);
    	orderItemList.setAutoFetchData(false);
    	orderItemList.setCanEdit(false);
    	orderItemList.setCanRemoveRecords(false);
    	orderItemList.setWrapHeaderTitles(true);
    	orderItemList.setWrapCells(true);
    	orderItemList.setCellHeight(40);
    	orderItemList.setHeaderHeight(65);
    	orderItemList.setSortField(0);
    	
    	ListGridField orderCustomerName = new ListGridField("orderCustomerName");
    	orderCustomerName.setWidth(180);
    	orderCustomerName.setTitle("Customer Name");
    	ListGridField pk = new ListGridField("pk");
    	pk.setType(ListGridFieldType.INTEGER);
    	pk.setTitle("Count");
    	pk.setAlign(Alignment.CENTER);
    	pk.setWidth(100);
    	ListGridField itemDescription = new ListGridField("itemDescription");
    	itemDescription.setWidth(420);
    	itemDescription.setTitle("Items Description");
    	
    	orderItemList.setFields(orderCustomerName,pk,itemDescription);    	
    	
    	orderItemList.setHeaderSpans(new HeaderSpan[] {
    			new HeaderSpan("Aggregated items data", new String[] {"pk", "itemDescription"})
        });
    	
    	DSRequest dsProperties = new DSRequest();
    	dsProperties.setOperationId("customAggregation");
    	dsProperties.setGroupBy("orderCustomerName");
		Map<String,String> summaryFunctions = new HashMap<String,String>();
		summaryFunctions.put("pk", "count");
		summaryFunctions.put("itemDescription", "concatDistinct");
		dsProperties.setRawSummaryFunctions(summaryFunctions);
		orderItemList.fetchData(null, null, dsProperties);
    	
        orderItemList.draw();
    }

}