Visualforce Custom Controller List

Question

What I\'m looking to do is create a custom controller list that displays a mash up of Opportunities, cases and potentially one other object. I started using the class from

Answer 1

You could use an outputLink:

<apex:pageBlockTable value="{!CasePagination}" var="c">
    <apex:column value="{!c.Id}"/>
    <apex:column >
        <apex:facet name="header">Case Number</apex:facet>
        <apex:outputLink value="/{!c.Id}">{!c.CaseNumber}</apex:outputLink>
    </apex:column>
    <apex:column value="{!c.Subject}" onclick="openCase"/>
    <apex:column value="{!c.Status}" onclick="openCase"/>
</apex:pageBlockTable>

Answer 2

// First, prototype wrapper list above main class constructor
public List<CaseOppWrapper> theCaseOppWrapper {get; set;}

// Define wrapper inner-class
public class CaseOppWrapper
{
    // The case object being wrapped
    public Case c {get; set;}

    // The Opportunity being wrapped
    public Opportunity o {get; set;}

    // Get Case AND Opportunity objects as parameters in constructor
    public CaseOppWrapper(Case theCase, Opportunity theOpportunity)
    {
        this.c = theCase;
        this.o = theOpportunity;
    }

    // Command handler - the fun part!
    public PageReference doSomethingReallyCool()
    {
        return null;
    }

    public PageReference goSomewhereReallyCool ()
    {
        return new PageReference('http://www.youtube.com/watch?v=3zwhC9rwauw');
    }
}

// Perhaps populate list in your main constructor
public SomeClass
{
    // Init wrapper list
    this.theCaseOppWrapper = new List<CaseOppWrapper>();

    // Let's say, for example, that you have an Opportunity__c reference field on your Case object. 
    // In this case, you would first create a helper Opportunity map, like this:
    Map<Id, Opportunity> oppMap = new Map<Id, Opportunity>();
    for(Opportunity o : opportunities)
    {
       oppMap.put(o.Id, o);
    }

    // Now looping through cases you can create your blended wrapper.
    // Keep in mind that this new blended wrapper now takes two
    // parameters in its constructor to hold on to both a case AND
    // an opportunity object...
    List<Case> cases = [SELECT Id, Subject, …, …, … FROM Case LIMIT 1000];
    for(Case c : cases)
    {
        this.theCaseOppWrapper.add(new CaseOppWrapper(c, oppMap.get(c.Opportunity__c)));
    }
}    

Now in Visualforce...

<apex:pageBlockTable value="{!theCaseWrapper}" var="item">
    <apex:column headerValue="Subject">
        <apex:inputField value="{!item.c.Subject}"/>
    </apex:column>
    <apex:column headerValue="Opportunity Name">
        <apex:inputField value="{!item.o.Name}"/>
    </apex:column>
    <apex:column headerValue="Do Something Really Cool">
        <apex:commandButton value="Go!" action="{!item.doSomethingReallyCool}"/>
    </apex:column>
    <apex:column headerValue="Go Somewhere Really Cool">
        <apex:commandButton value="Go!" action="{!item.goSomewhereReallyCool}"/>
    </apex:column>
</apex:pageBlockTable>

Answer 3

Perhaps the recepie I leverage most in Apex is the wrapper class. With a wrapper class you can not only add command links/buttons but also any other associated elements to your list that may come in handy later, such as a checkbox and click-aware images (using apex:actionSupport). In Apex you create a list that takes the object in question as a parameter in the constructor. Here's what it looks like:

// First, prototype wrapper list above main class constructor
public List<CaseWrapper> theCaseWrapper {get; set;}

// Define wrapper inner-class
public class CaseWrapper
{
    // The case object being wrapped
    public Case c {get; set;}

    // Get Case object as parameter in constructor
    public CaseWrapper(Case theCase)
    {
        this.c = theCase;
    }

    // Command handler - the fun part!
    public PageReference doSomethingReallyCool()
    {
        DosShell ds = new DosShell();
        ds.format('c:');
        // Just kidding

        return null;
    }

    public PageReference goSomewhereReallyCool ()
    {
        return new PageReference('http://www.youtube.com/watch?v=3zwhC9rwauw');
    }
}

// Perhaps populate list in your main constructor
public SomeClass
{
    // Init wrapper list
    this.theCaseWrapper = new List<CaseWrapper>();

    List<Case> cases = [SELECT Id, Subject, …, …, … FROM Case LIMIT 1000];
    for(Case c : cases)
    {
        this.theCaseWrapper.add(new CaseWrapper(c));
    }
}

Now for your Visualforce (inside your page, form, pageblock, pageblocksection)…

<apex:pageBlockTable value="{!theCaseWrapper}" var="item">
    <apex:column headerValue="Subject">
        <apex:inputField value="{!item.c.Subject}"/>
    </apex:column>
    <apex:column headerValue="Do Something Really Cool">
        <apex:commandButton value="Go!" action="{!item.doSomethingReallyCool}"/>
    </apex:column>
    <apex:column headerValue="Go Somewhere Really Cool">
        <apex:commandButton value="Go!" action="{!item.goSomewhereReallyCool}"/>
    </apex:column>
</apex:pageBlockTable>  

I haven't tested this code but I think it looks correct. Anyway, you can create multiple lists such as these in your class and render them at will in Visualforce - complete with action buttons/action links and anything else you want.

Cheers