Is there any way to hide attributes in a Rails Jbuilder template?

Question

I know you can explicitly list fields like so,

json.(model, :field_one, :field_two, :field_three)

But is there anything similar to the following,

json.(model, except: :field_two)

which would output all of the model fields except the one called out?

Have you tried `json.merge! model.attributes.except("field_one", "field_two")`? — vich, Jul 11 '16 at 20:38
@mmichael that worked! Seems like there'd be an easier way ... — sambecker, Jul 11 '16 at 20:44

score 10 · Accepted Answer · answered Jul 11 '16 at 20:51

10

Try json.merge! model.attributes.except("field_one", "field_two")

answered Jul 11 '16 at 20:51

vich

score 1 · Answer 2 · answered Jul 11 '16 at 20:48

I had done something like this. Get an array of all desired attributes of model

model.attributes.keys.map { |key| key.to_sym } - [:field_one, :field_two]

Which can be written like

 model.attributes.keys.map(&:to_sym) - [:field_one, :field_two]

Then splat the array while passing in jbuilder

json.(model, *(model.attributes.keys.map(&:to_sym) - [:field_one, :field_two]))

score 0 · Answer 3 · answered Aug 22 '17 at 01:10

0

This gem is what you need.

json.except! @resource, :id, :updated_at

answered Aug 22 '17 at 01:10

user2091375

score 0 · Answer 4 · answered Oct 26 '17 at 14:01

0

For non ActiveRecord objects this similar pattern works (Rails 4)

 json.merge! @some_object.as_json.except("not_this_one")

answered Oct 26 '17 at 14:01

aqwan

4 Answers4