Accessing a constant via visualforce page without using a controller

Question

I need to access a constant that holds a URL via an email template(= visual-force page) without using a controller. Because if I use a controller I will need to write test code and also maintain more code.

I have just seen that there are some out-of-the-box features that can be used directly in visual-force pages. For instance, $Api.Partner_Server_URL__xxx, that will return an API endpoint.

I would like to achieve the same, I mean to retrieve a custom URL in the same manner. Something like $Company.Url = www.company.com.

Is this possible?

Answer 1

A mechanism you could use is a hierarchical custom setting. Values can be accessed directly in Visualforce using $Setup.

Here is the example from the docs:

<apex:page>
    <apex:inputField value="{!usr.Workstation_Height__c}"/>
    <apex:outputPanel id="helpWorkstationHeight" 
        rendered="{!$Setup.App_Prefs__c.Show_Help_Content__c}">
        Enter the height for your workstation in inches, measured from the 
        floor to top of the work surface.
    </apex:outputPanel>
    ...
</apex:page>