gatsby-transformer-remark cannot handle an array of objects

[jeffwillette]

Description

The frontmatter cannot handle an array of objects, and seems to call toString() on the object somewhere

Steps to reproduce

add a frontmatter like this

authors:
  - name: foo
    avatar: ../../path
    page: /path/to/page
  - name: bar
    avatar: ../../path2
    page: /path/to/page

and print it to the console to see this

authors:Array(2)
  0:"[object Object]"
  1:"[object Object]"

Expected result

I would expect to see my array of objects in the frontmatter

Actual result

I get the string representation of the object

Environment

• Gatsby version (npm list gatsby): 1.9.250
• gatsby-cli version (gatsby --version): 1.9.260
• Node.js version: 10.1.0
• Operating System: OSSierra 10.13.4

File contents (if changed)

gatsby-config.js: N/A
package.json: N/A
gatsby-node.js: N/A
gatsby-browser.js: N/A
gatsby-ssr.js: N/A

[KyleAMathews]

Where are you printing to the console?

[jeffwillette]

I am printing to the console in the render method of the page/component
that queries the front matter.

Someone in discord mentioned that they think it might be due to not quoting
the strings in the front matter but I haven't had a chance to try it out yet

On Fri, 11 May 2018, 3:28 pm Kyle Mathews, [e-mail] wrote:

Where are you printing to the console?

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[pieh]

I'm not seeing this when trying to reproduce :/

[jeffwillette]

hmm yes you are right, I am not sure what was causing the string representation, but a server restart seemed to fix it. Sorry my mistake

[pieh]

If you starter develop when you had array of string in author field gatsby would create schema as array of strings and changing those strings to objects while develop is running won't cause schema to update (Gatsby just doesn't update schema while it's running). I will be looking to add schema updates in future.

[jeffwillette]

ahh that is indeed what happened