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Developer Preview Releases for the Google Visualization API
Dreamforce 2008 brought many exciting new features from salesforce.com, both on the CRM/front-end side and the Force.com platform/back-end side. One of the favorites was the announcement that salesforce.com had released a Google Visualization code share project. Google has invited developers to participate in Developer Preview Releases for the Visualization API.
It looks like a pretty cool way to work on RESTful integrations while making some pretty pictures for your users.
For those unfamiliar with the Salesforce/Google Visualization toolkit, developer.force.com has a great introduction.
The Ultimate Visualforce Events Tab – Almost
Check old blog posts, and you’ll see that I’ve been working on custom Events and Task tabs for a while now. A Task Visualforce tab (that mimics the Task box on the Home Page) is almost ready to come out, but the Events Enhanced List tab is (pretty much) here!This bears emphasizing: Enhanced Lists were initially not fully released for Activity/Event/Task objects, but are available now.
The code is ridiculously simple, thanks to the apex:EnhancedList Visualforce tag:
<apex:page standardController="Task" > <apex:enhancedList type="Activity" height="800" rowsPerPage="50" /> </apex:page>See? Nothing to it! Or so we thought. There are some catches (there always are):
- The original use-case required displaying all upcoming events without the header or sidebar. We still cannot do this. Quoting from the Winter ’09 Release Notes: The enhancedList component is not allowed on pages that have the attribute showHeader set to false.
- We’d like to create a custom tab for this page. We create a Visualforce Tab, pick a custom icon, and show the page… and when I click on the tab, the enhanced list is displayed, but the tab is not highlighted. Also, the custom icon I chose is not displayed. How do we highlight our tab?
After making the page, we make the tab as desribed above. Then we RETURN to the page and add a tabstyle modifier to the apex:page tag, like so:<apex:page standardController="Task" tabstyle="enhanced_activities__tab"> <apex:enhancedList type="Activity" height="800" rowsPerPage="50" /> </apex:page>
[Of course, change the tab name to whatever you choose.]Success? Not quite. There’s another catch:
- The tab is highlighted (brown in our case), but the color and icon for the enhanced list are standard green/home.
Sadly, I have no workaround for this one. Sorry.
Moving forward, consider if you want to create a particular enhanced list view instead of calling the standard enhanced Activity list as I have done here. If you would prefer to make a custom enhanced list view, then you will need to add more code, but that is beyond the scope of this post.
Enjoy!
Force.com Sites Guest User Profile Permissions
I’m working on an event registration application for the Sites Developer Challenge, and it involves a validation that the registrant’s email exists in a Contact record. Remembering that Steve Andersen had run into some obstacles with Contact.Email visibility, I decided to check the guest profile for Contact Field Level Security. Here’s what I found:
Guest profile Contact Field Level Security
If you squint a bit, you can see that the Opt-Out and Email fields are hidden to the guest user. I have no idea why these, in particular, are hidden. Likewise, I couldn’t find a pattern in which fields were shown on the custom objects I had created, nor which were visible on standard objects.
In any event, I don’t have any pearls of wisdom on this topic; this is more of an informative note to all that are using Sites (especially if you plan to do any communication-subscriptions) to check out the Field-Level Security.
For those wondering how to get to this Profile (since it is not visible in the usual Profile section), go to the Sites page > Site Name or URL > Public Access Settings (a button).
