Refresh Page Command

Question

I call below vf page with a custom button on my custom invoice object. and upon pushing the button, it calls below vf page then save the invoice as pdf attachment in "notes & attachment section" however I need to refresh page after pushing the button in order to see the attachment. Is there any way to refresh the page by changing below code?

<apex:page standardController="Invoice1__c" action="{!saveAttachement}" 
           extensions="B2B_B2C_Invoice_Extensions"
           showHeader="false"> 
    <!-- contentType="application/pdf#Invoice_{!Invoice1__c.Name}.pdf" 
    <apex:include pageName="B2B_Invoices"/>-->
</apex:page>

Apex Class:

public class B2B_B2C_Invoice_Extensions {
public ID parentId {get;set;}
public String pdfName {get;set;}
public String pageCaller {get;set;}
public Boolean InvoiceUpdate {get;set;}
public PageReference pdfPage;

    public B2B_B2C_Invoice_Extensions (ApexPages.StandardController controller) {

        if(controller != null) {
            parentId = controller.getRecord().id;
            Invoice1__c inv = [SELECT id, name FROM Invoice1__c WHERE Id = :parentId];
            pdfName = 'Invoice_' + inv.Name;
        }
        getInvoiceSetting();
    }

    public void getInvoiceSetting() {
        try{
            InvoiceSetting__c invoiceSetting = [SELECT id, InvoiceUpdate__c FROM InvoiceSetting__c LIMIT 1];
            InvoiceUpdate = invoiceSetting.InvoiceUpdate__c;
        } catch (DmlException e) {
            System.debug(e);
        }
    }

    public PageReference saveAttachement() {
        pageCaller = getVFPageName();

        if(pageCaller == 'B2B_Invoices_Dynamic') {
            pdfPage = Page.B2B_Invoices;
            pdfName = pdfName;
        }
        /*else if(pageCaller == 'B2C_Invoices_Dynamic') {
            pdfPage = Page.B2C_Invoices;
            pdfName = 'B2C' + pdfName;
        }*/

        invoiceToPdfGenerate(pdfPage, pdfName, parentId);

        // send the user to the account to view results
        return new PageReference('javascript:window.close()');
        //return new PageReference('javascript:window.close()');
    }

    public void invoiceToPdfGenerate(PageReference pdfPage, String pdfName, Id parentId) {

        // add parent id to the parameters for standardcontroller
        pdfPage.getParameters().put('id', parentId);

        // the contents of the attachment from the pdf
        Blob body;

        try {
            // returns the output of the page as a PDF
            body = pdfPage.getcontentAsPdf();
            // need to pass unit test -- current bug    
        } catch (VisualforceException e) {
            body = Blob.valueOf('Some Text');
        }

        List<ContentDocument > cFileList = [SELECT id FROM ContentDocument WHERE Title =: pdfName];

        if(cFileList.size() == 0 || InvoiceUpdate) {

            ContentVersion cv = new ContentVersion();
            cv.versionData = body;
            cv.title = pdfName;
            cv.pathOnClient = pdfName+'.pdf';
            insert cv;
        }

        List<Attachment> cAttachmentList = 
            [
                SELECT id 
                FROM Attachment 
                WHERE ParentId = :parentId 
                AND Name = :pdfName+'.pdf'
            ];

        if(cAttachmentList.size() == 0 || InvoiceUpdate) {

            // create the new attachment
            Attachment attach = new Attachment();
            attach.Body = body;
            // add the user entered name
            attach.Name = pdfName+'.pdf';
            attach.IsPrivate = false;
            attach.ContentType = 'application/pdf';
            // attach the pdf to the account
            attach.ParentId = parentId;
            insert attach;
        }

    }

    public string getVFPageName() {
        String pageName = ApexPages.CurrentPage().getUrl();
        pageName = pageName.replaceFirst('/apex/','');
        pageName = EncodingUtil.urlEncode(pageName, 'UTF-8');
        string[] pageNameExtra = pageName.split('%3F',0);
        pageName = pageNameExtra[0];
        return pageName;                                        
    }
}

Answer 1

If you want to view the page after attaching it, you need to change your code under the public PageReference saveAttachement() { where you have the following:

// send the user to the account to view results
return new PageReference('javascript:window.close()');
//return new PageReference('javascript:window.close()');

Instead of just closing the window you used, you need to return the PageReference for the PDF which appears from your code to be the contents of the variable pdfPage.

Answer 2

Try this return new PageReference(getVFPageName());