Handlebar expression, within handlebar expression

OL Connect Professional Designer
1

Is it possible to use a handlebar expression to display a block of text, which itself contains a handlebar expression that would be rendered properly?

Think that I want to have a variety of custom paragraphs (in a data file) that all contain {{name}} in them so that they can appear personalized to who they are being sent to?

Is something like this possible? or when are handlebar expressions evaluated? Could I load the paragraph with a script before they are evaluated to have this work?

Trying to think of ways to make this type of content as dynamic as possible

2

This is possible as we use it ourself in our templates. An example is:

{{ MyCustomFunction (MyCustomFunction2 param1_2 param2_2) param1_1 param1_2 }}

You must use the () for the 2nd part. And MyCustomFunction and MyCustomFunction2 are registered properly of course.

3

@dvdmeer thank you for the confirmation!

Would it be possible to get a sample design containing this? I’m not used to doing the more complex usage of handlebars and a hands on example I could look through would be incredibly helpful.

4

Hi,

I will leave that to someone from OL as unfortunately I do not have time to create a sample design.
Do note that you can find a lot of examples at the blog posts that have been written: OL Resource Center (uplandsoftware.com)

1 Like
5

@SamSorenson it sounds like you’re looking for the partials feature.

As a first step you would add your custom paragraphs with {{name}} expressions to a Handlebars file in the Snippets resource folder. Let’s say that file is called “paragraphs.hbs”. In your section you can then add {{+ paragraphs}} to render the HTML and Handlebars expressions contained in that file.

Note: In Connect 2022.2 or earlier you would need to use the more verbose syntax {{+ snippets/paragraphs.hbs}} instead.

You can also make the reference dynamic. Suppose you have two Handlebars files, “paragraph1.hbs” and “paragraph2.hbs”, and a data field with the value “paragraph1” for one record and “paragraph2” for another. In your section you can then add {{+ (fieldName)}}. The parentheses ensure that “fieldName” is evaluated as an expression rather than a literal.