Partial tags not rendering local variables

[lhjd]

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on Gitter: https://gitter.im/comfy/comfortable-mexican-sofa

Expected behavior

Tell us what should happen

• when we want to render a partial template using the cms partial tag, the local variables should be passed along to the partial template

Actual behavior

• the partial template is rendered, but the local variables are not passed to the template

Steps to reproduce

1. Add a cms partial tag to a cms layout: {{ cms:partial "path/to/partial", local_var: "value" }}
2. This tag will be converted to <%= render partial: "path/to/partial", locals: {"local_var" => "value"} %>
3. Inside the partial template, <%= local_var %> will not be rendered.
4. Workaround: use <%= local_assigns["local_var"] %> to render.

I've forked the comfy-demo to illustrate the issue.
Steps to reproduce:

1. git clone https://github.com/lhjd/comfy-demo/
2. cd comfy-demo
3. bundle install
4. yarn install
5. rails db:create
6. rails db:migrate
7. rails db:seed - to create a demo site called mydemo
8. rails 'comfy:cms_seeds:import[mydemo, mydemo]' - import from mydemo cms seeds folder to mydemo site
9. rails server
10. go to http://localhost:3000

Actual:

Expected:

Workaround:

1. use <%= local_assigns["local_var"] %> instead of <%= local_var %> in the partial template

I've created a branch workaround to illustrate this.
Steps to reproduce:

1. git checkout workaround
2. go to http://localhost:3000

System configuration

Rails version:
rails (6.0.2)

CMS version:
comfortable_mexican_sofa (2.0.18 e13ce5d)

Ruby version:
ruby '2.6.5'

[Fodoj]

I can confirm this is happening.