JSON-LD RecipeIngredient does not support lists

[mgburns]

I'm attempting to add JSON-LD meta for recipes and am unable to recreate the structure listed in the schema.org example:

<script type="application/ld+json">
{
  "@context": "http://schema.org",
  "@type": "Recipe",
  "author": "John Smith",
  "cookTime": "PT1H",
  "datePublished": "2009-05-08",
  "description": "This classic banana bread recipe comes from my mom -- the walnuts add a nice texture and flavor to the banana bread.",
  "image": "bananabread.jpg",
  "recipeIngredient": [
    "3 or 4 ripe bananas, smashed",
    "1 egg",
    "3/4 cup of sugar"
  ],
  "interactionStatistic": {
    "@type": "InteractionCounter",
    "interactionType": "http://schema.org/Comment",
    "userInteractionCount": "140"
  },
  "name": "Mom's World Famous Banana Bread",
  "nutrition": {
    "@type": "NutritionInformation",
    "calories": "240 calories",
    "fatContent": "9 grams fat"
  },
  "prepTime": "PT15M",
  "recipeInstructions": "Preheat the oven to 350 degrees. Mix in the ingredients in a bowl. Add the flour last. Pour the mixture into a loaf pan and bake for one hour.",
  "recipeYield": "1 loaf",
  "suitableForDiet": "http://schema.org/LowFatDiet"
}
</script>

Here's my code:

{% do seomatic.jsonLd.create({
    'type': 'Recipe',
    'name': entry.title,
    'url': entry.url,
    'description': entry.body,
    'recipeIngredient': ingredients|filterByValue('type', 'ingredient')|column('text'),
    'recipeInstructions': directions|filterByValue('type', 'direction')|column('text')|join(' ')|striptags
}) %}

The instructions render as expected, the ingredients are omitted, presumedly because it's an array and not a string.

[khalwat]

What is the filterByValue filter in this case? Also column?

[khalwat]

So as a quick test, I did this:

{% set myRecipe = seomatic.jsonLd.create({
    'type': 'Recipe',
    'name': entry.title,
    'url': entry.url,
    'description': "some description",
    'recipeIngredient': ["one", "two"],
    'recipeInstructions': ["three", "four"]
}) %}

<pre>
{{ myRecipe.render() }}
</pre>

...and it rendered:

<script type="application/ld+json">
{
    "@context": "http://schema.org",
    "@type": "Recipe",
    "description": "some description",
    "name": "Homepage",
    "recipeIngredient": [
        "one",
        "two"
    ],
    "recipeInstructions": [
        "three",
        "four"
    ],
    "url": "http://craft3.test/"
}
</script>

...which is what I'd expect (it's handling the arrays without an issue)...?

[mgburns]

Gah, you are correct -- should have done a minimal test case first, my apologies!

I was using filterByValue / column to extract a field from a matrix field block. In this case that field was a Redactor field, which returns a craft\redactor\FieldData instance rather than a string.

[khalwat]

I was just wondering where filterByValue was coming from... a custom Twig filter or something?

[mgburns]

It's from craft\helpers\ArrayHelper -- https://github.com/craftcms/cms/blob/develop/src/web/twig/Extension.php#L205.

Not sure when the Craft team snuck that in there but it saves me some gnarly {% for %} loops! :)

[khalwat]

ooooh, very handy, thanks!