Netlify-cms: preview_path does not appear..

[fdq09eca]

I tried to follow the doc but the preview link does not appear at all.

Am I missing something?

here is my setting

# config.yml

backend:
  name: git-gateway
  branch: master # Branch to update (optional; defaults to master)
media_folder: "assets/images"
# publish_mode: editorial_workflow

collections:
  - name: "blog"
    label: "Blog"
    folder: "_posts/"
    slug: "{{year}}-{{month}}-{{day}}-{{slug}}"
    preview_path: blog/{{slug}}
    create: true
    editor:
      preview: false
    fields:
      - { label: "Layout", name: "layout", widget: "hidden", default: "single" }
      - { label: "Title", name: "title", widget: "string" }
      - { label: "Publish Date", name: "date", widget: "datetime" }
      - { label: "Body", name: "body", widget: "markdown" }
      - { label: "tags", name: "tags", widget: "list", default: ["others"] }
      - {
          label: "categories",
          name: "categories",
          widget: "list",
          default: ["APEC Study Centre"],
        }
      - { label: "execept", name: "execept", widget: "string", required: false}
      - { label: "tagline", name: "tagline", widget: "string", required: false}
      - label: "sidebar"
        name: "sidebar"
        widget: "list"
        required: false
        fields:
          - {
              label: "image",
              name: "image",
              widget: "image",
              allow_mulitple: false,
              # default: "",
              required: false
            }

Thank you.

[erezrokah]

Hi @fdq09eca, preview_path is useful when working with publish_mode: editorial_workflow.
In publish_mode: editorial_workflow the CMS will create a PR instead of committing to the master branch when you create/edit an entry. Then if your CI system creates a preview for that PR the URL should appear.
Since you have editorial workflow disabled you should also set a site_url (https://www.netlifycms.org/docs/deploy-preview-links/#preview-links-for-published-content) to show preview paths for published content.

[fdq09eca]

um.. it still not appears anything, but is this functionality not available in local development? i am running on a local Jekyll sever

[erezrokah]

For it to work you need to make sure the PR is created for that entry and there is a matching commit status on that PR.

[fdq09eca]

it did create a PR. and the preview link also appeared. but the link is not working.. it brings me to page not found.

== UPDATE ==

my bad, it is because I default the categories.. i tried

preview_path: "{{fields.categories}}/{{slug}}"

but the {{fields.categories}} are delimited by - while the dynamic link is delimited by %20 i.e. space.

Any possibility that I could change the delimiter of {{fields.categories}} to space?

Thanks.

[erezrokah]

Hi @fdq09eca, you can use sanitize_replacement https://www.netlifycms.org/docs/configuration-options/#slug-type

[erezrokah]

Closing, please comment if necessary

[idrisadetunmbi]

@erezrokah, sanitize_replacement with the preview_path shows an error when I use a character like / or . The error is The replacement character(s) (options.replacement) is itself unsafe.

Basically, when the preview_path resolves to something that includes a /, it is replaced with - which prevents being able to use something like a slug entry field in the CMS as the preview_path