Cannot iterate over "object"

[chippers]

liquid-rust version: 0.14.3 and 0.15.0 (cobalt v0.12.2 and master)
rust version: rustc 1.29.1 (b801ae664 2018-09-20)
OS: Xubuntu 18.04

Attempting to iterate over an object from data is not possible. A small reproduction with cobalt is available here with the cobalt build output:

chip@dev:~/temp/cobalt_liquid_iterate_for$ cobalt build
[info] Building from "/home/chip/temp/cobalt_liquid_iterate_for/" into "/home/chip/temp/cobalt_liquid_iterate_for/_site"
Error: build command failed
Caused by: Failed to render content for "index.html"
Caused by: liquid: Expected array, found `object`
from: {% for kv in site.data.authors  %}

I'm posting it here instead of the cobalt.rs repo since it seems this library is the root cause of the error. I tried with the latest release v0.12.2 (liquid-rust 0.14.3) and compiled from source from the master branch (liquid-rust 0.15.0).

I encountered this while porting the arewewebyet site from Jekyll to Cobalt, where the authors data file is iterated over once to get a list of curators, and then used elsewhere other times by other templates mostly as an object.

It definitely works in Jekyll, and the Liquid docs mention the types allowed in for loops. Here I'm assuming a hash is equivalent to what is called an object here, as it works as expected with Jekyll.

[epage]

Thanks for reporting this!

I'll try to get to this tonight to unblock you.

btw that liquid document is a lot better than the one I've been using. I'll need to audit liquid-rust against that.

[chippers]

It's the one in the readme 😃

https://github.com/cobalt-org/liquid-rust/blame/e553f8ac37d76d1670a84241ad0cd954cec593c2/README.md#L44

[epage]

Thats what I get for using google rather than our own readme :)

[epage]

Cobalt PR: cobalt-org/cobalt.rs#526