Question

I store user editable articles in a database. Users can insert some simple widgets into the articles (graphs and so on). So far I’ve implemented this as a proof of concept by letting the user insert graphs like [graph-1] and than do a string search and replace.

I was wondering whether there are more efficient ways of calling templates from a string? Maybe involving Sitemesh?

Answer 1

Here’s a sample of code that takes a template and a binding Map with variables and renders it to a string:

import groovy.text.SimpleTemplateEngine

def engine = new SimpleTemplateEngine()
String templateContent = 'hello ${name}'
def binding = [name: 'world']

String rendered = engine.createTemplate(templateContent).make(binding).toString()

You would just need to replace the hard-coded ‘templateContent’ with a string from the database and populate the binding map with whatever data makes sense for that template.