jbuilder with If Condition

Question

I am trying to display a key-value pair on some condition in the jbuilder like as follows

json.id plan.id
json.title plan.title
json.description plan.description
json.plan_date plan.plan_date.iso8601
json.start_time plan.start_time.strftime("%I:%M %p") if !plan.start_time.present?

Error

NoMethodError at /api/plans/16
==============================

> undefined method `strftime' for nil:NilClass

app/views/api/v1/plans/_plan.json.jbuilder, line 5
--------------------------------------------------

``` ruby
    1   json.id plan.id
    2   json.title plan.title
    3   json.description plan.description
    4   json.plan_date plan.plan_date.iso8601
>   5   json.start_time plan.start_time.strftime("%I:%M %p") if !plan.start_time.present?

Arup Rakshit · Accepted Answer · 2015-10-24T04:27:33.450

15

Well, the inline if modifier don't work with jubilder. I do write it like

if plan.start_time.present?
  json.start_time plan.start_time.strftime("%I:%M %p")
end

edited Oct 24 '15 at 04:27

answered Oct 24 '15 at 04:24

Arup Rakshit

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am still getting this :( > undefined method `strftime' for nil:NilClass – Harsha M V Oct 24 '15 at 04:27
2

@HarshaMV Yes, because logic was wrong. I fixed it now. You don't need to use `!`, that is misleading with what you are doing. – Arup Rakshit Oct 24 '15 at 04:27

score 3 · Answer 2 · answered Apr 25 '18 at 07:56

The problem is that you are not using parenthesis properly and therefore your if block is not evaluated properly.

Writing

json.start_time plan.start_time.strftime("%I:%M %p") if !plan.start_time.present?

is equivalent to:

json.start_time(plan.start_time.strftime("%I:%M %p") if !plan.start_time.present?)

the correct way of writing it is:

json.start_time(plan.start_time.strftime("%I:%M %p")) if !plan.start_time.present?

inline if modifiers work also on jbuilder.

jbuilder with If Condition

2 Answers2