Yield HTML attribute through slim

Question

I'm trying to generate an html tag attribute in slim through content_for.

The output I would like to get is the something like :

body data-turbolinks="false"

What I've tried (that work) is the following :

from my view

- content_for(:body_attributes) do
  =false

and from my app template

body data-turbolinks=(yield(:body_attributes) if content_for?(:body_attributes))

But I don't find the right syntax if I want to pass on the attribute AND its value from my content_for.

I've tried many things with no chance like :

body*{(yield(:body_attributes) if content_for?(:body_attributes)}

or

body[(yield(:body_attributes) if content_for?(:body_attributes)]

with something like this in my view :

- content_for(:body_attributes) do
  = "#{'data-attribute=false'}"

Thanks for any idea !

---

Regarding comments :

# Template
body*{yield(:body_attributes) if content_for?(:body_attributes)}
# View
- content_for(:body_attributes) do
  ="data-turbolinks=>false"

OR

# Template
body*{yield(:body_attributes) if content_for?(:body_attributes)}
# View
- content_for(:body_attributes) do
  data-turbolinks=false

Produces :

syntax error, unexpected modifier_if, expecting => s(({yield(:body_attributes) if content_for?(:body_attributes

---

# Template
body(yield(:body_attributes) if content_for?(:body_attributes))
# View
- content_for(:body_attributes) do
  ="data-turbolinks=>false"

OR

# Template
body(yield(:body_attributes) if content_for?(:body_attributes))
# View
- content_for(:body_attributes) do
  data-turbolinks=false

Produces :

Slim::Parser::SyntaxError Expected attribute