public with sharing class NewOrderController {
    public Id ordId {get;set;}
    public boolean errorflg {get;set;}
    public String errorMessage {get;set;}

    public String baseUrl { get; set; }
    public String rtUrl { get; set; }

    public String fileName { get; set; }
    public List<OrderItem> csv_activities {get;set;}

    public NewOrderController(ApexPages.StandardController controller) {
        this();
    }

    public NewOrderController() {
        baseUrl = URL.getSalesforceBaseUrl().toExternalForm();
        String path = URL.getCurrentRequestUrl().getPath();
        if (path.indexOf('/apex') > 0) {
            baseUrl += path.substring(0,path.indexOf('/apex'));
        } else if (path.indexOf('production/') > 0) {
            baseUrl += '/production';
        }
        rtUrl = System.currentPageReference().getParameters().get('retURL');
        if (rtUrl == null || rtUrl == 'null') {
            rtUrl = '';
        }
    }

    public void init () {
        ordId = System.currentPageReference().getParameters().get('Id');

        if (ordId != null) {
            csv_activities = [select Id, OrderId, PriceBookEntry.Product2.ProductCode, PriceBookEntry.Product2.Name, Quantity, Discount__c, Set__c from OrderItem where OrderId =: ordId];
        }
    }

    public PageReference csvExport() {
        if (fileName == null || fileName == '') {
            errorflg = true;
            errorMessage = '请输入配置导出文件名。';
            return null;
        }

        if (csv_activities.size() == 0) {
            errorflg = true;
            errorMessage = '合同没有产品配置。';
            return null;
        }

        PageReference pr = page.OrderCSVExport;
        return pr;
    }
}