How to show a field when user click after save button? (other than rerendering )

Question

I have a standard field called Product Brief Number ({!Product_Brief__c.Name}). This field is Auto Number, after saving it will generate a number. I want show this field when some after click on the save button. Otherwise my page will break. I already using rerender properties in my page. if i used rendering for this part, it will break my page. Thanks

   <apex:outputText value="{!Product_Brief__c.Name}"></apex:outputText>

   <apex:pageblockButtons >
                <apex:commandButton value="Save" action="{!save}"/>
   </apex:pageblockButtons>

Answer 1

What you need is to be able to query the record from the database. Therefore, your solution depends on your page's design.

standardController + Extension

If you're using a standard controller, which it appears you are, you have to force a refresh of the entire page, because the record is only loaded once per view state. That looks like this:

public PageReference saveRecord() {
    // ApexPages.StandardController from constructor
    if(controller.save() == null) {
        return null;
    }
    PageReference ref = Page.myPage;
    ref.getParameters().put('id', controller.getId());
    ref.setRedirect(true);
    return ref;
}

If you're overriding the "view" action with your page, this isn't necessary, as a standard "{!save}" will effectively do the same thing.

controller

If you have your own controller, you can simply:

public void save() {
    upsert theRecord;
    theRecord = [SELECT Name, ... FROM ... WHERE Id = :theRecord.Id];
}

Of course, this doesn't cover error handling, so I'll leave that up to you.

Answer 2

Give id to your outputtext tag. Place oncomplete attribute on the command button.Call a javascript function from there. In the java script fetch the apex:outputText attribute by using the id after that just replace the html of the tag with the new value.

function updateText(){ var a=documnet.getElementById({!$Component.Path_To_The_OPTextTag}); a.html()='{!Product_Brief__c.Name}'; }