Friday, November 6, 2009

Xpages: Web Dashboards made easy, I Love X-pages!!

On a recent project, a simple one at that, an executive wanted an overview dashboard to show totals from many different views on one page. I started thinking about how i would do this in the

Notes client...

I could make a form with computed fields and create an agent or query open LS code to get the values and set the fields values.

I could create computed fields and do it with formula language but what a pain that would be.

The old way on the web

I would to use a webquery open agent and set the values, or compute formula on the fields.


Well in X-pages i am allowed to create a computed field and use SSJS to compute the value. It is like having a computed field on a client based notes form and setting the value to LS, which of course you cant do.

i wrote three lines of code per field

db = session.getCurrentDatabase()
view1 = db.getView('On Site')

or it could be like

db = session.getCurrentDatabase()
view1 = db.getView('On Site')
dc1 = view1.getAllDocumentsByKey('test')

and of course you can do a

db = session.getCurrentDatabase()
view1 = db.getView('On Site')
dc1= view1.getAllDocumentsByKey('test')
doc = dc1.getFirstDocument()
total = 0
while(doc != null)
total = doc.getItemValueDouble('amount') + total
set doc = dc1.getNextDocument(doc)


X-pages made this easy web development, compared to what i had to do in the past


Tim Tripcony said...

Mark, you can save even one more line of code. :) The global variable "database" always refers to the session's current database, so you can skip straight to:

var view1 = database.getView('OnSite');

Global variables are evil, of course, but personally I like that IBM implemented a few globals that make sense, since we're almost guaranteed to need a handle on a few of these things on every page anyway (session, database, etc.).

Mark Hughes said...

Sweet did not know that, thanks!

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