how do I perform substraction in email template ?
I want to show follower information like with first 3 users name , avatar and followed by X other users . lets say I have the total number of followers by step.total_count , now how to I get the value of X in email template , i can not find anyway to substract step.total_count - 3 .
5 Replies
Hi @istiak, I'm an AI assistant for Novu. While a team member reviews this question, I'll see if I can find relevant sources for your question.
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While I generate an answer, here are some sources that might be helpful:
* Handlebars & Helpers
* Email
* Step Conditions
* Get in-app notification feed for a particular subscriber
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Answer
Currently, Novu's Handlebars templates do not support direct arithmetic operations like subtraction within the template itself (1) . For scenarios requiring subtraction or other arithmetic operations directly in the email template, you might need to perform these calculations outside of the template and pass the result as a part of the payload to the template.
For displaying information like the first 3 users' names and avatars followed by "X other users," you would need to calculate the value of "X" (e.g.,
step.total_count - 3) in your application logic before triggering the notification. Then, you can include this calculated value in the notification payload. For example, if your payload includes a property for the calculated value, such as others_count, you would use it in your template as {{others_count}}.
If you're looking to iterate over the first few elements of an array (e.g., displaying the first 3 users), you might find iterating constructs like {{#each}} useful, although the direct subtraction for displaying "X other users" would still need to be pre-calculated.
For further enhancement or feature requests, considering Novu's active development and community-driven enhancements, you might consider contributing to the discussion on their GitHub or community channels (2) (3) .the step.total_count comes from digest , so how can i access this in application logic
Got it. Tagging @Support for additional help.
@istiak
Checkout this example
https://docs.novu.co/content-creation-design/handlebars-helpers#handling-event-count-display-with-excluded-individuals