Jinja2 template return nothing if variable is undefined

Question

I'm using Quickbase Pipelines trying to get some information to show in a notification email only if that variable (call rating) is defined. I've tried:

Audio Time: {{c.audio_time_min|int}}
{% if c.call_rating != '' %}
Call Rating: {{c.call_rating}}
{% else %}
''
{% endif %}

and

Audio Time: {{c.audio_time_min|int}}
{% if c.call_rating is defined %}
Call Rating: {{c.call_rating}}
{% else %}
''
{% endif %}

But I keep getting this as the response when that call rating variable is blank:

Audio Time: 21
Call Rating:

What I want is to not include that line at all, so:

Audio Time: 21

Just wanted to clarify before I answered - is the goal to show "Audio TIme: 21" when the [Call Rating] had a value in it, otherwise don't write anything? — Erich Wehrmann, Dec 22 '21 at 18:43

score 0 · Answer 1 · answered Dec 22 '21 at 23:05

0

I think this might work:

Audio Time: {{c.audio_time_min|int}}
{% if c.call_rating not none %}
Call Rating: {{c.call_rating}}
{% endif %}

answered Dec 22 '21 at 23:05

Erich Wehrmann

464
2
11

score 0 · Answer 2 · answered Dec 23 '21 at 14:37

Quickbase Pipelines didn't let me save it with the "not none" test. What did work was:

Audio Time: {{c.audio_time_min|int}}
{% if c.call_rating %}
Call Rating: {{c.call_rating}}
{% endif %}

The result there if the Call Rating field is blank is just:

Audio Time: 23

Jinja2 template return nothing if variable is undefined

2 Answers2