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darthmeme / gridsome-plugin-rss

Generate an RSS feed from your Gridsome data store
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Cannot use higher order function on array of objects queried from GraphQL to assign categories in feed item options #12

Closed Edmund1645 closed 5 years ago

Edmund1645 commented 5 years ago

I have the categories from my blog posts as an array containing objects which look like this: 

"tags":[
 {
  "id": "JavaScript",
  "title": "JavaScript",
  "path": "/tag/java-script"
}
// more category objects here
]

and in the gridsome.config.js file, where the categories field is under feedItemOptions I try to use a .map() higher-order function to loop through node.tags as queried and return an array containing only titles of the tags this time but I get an error saying:

TypeError: Cannot read property 'map' of undefined
    at categories (/home/edmund/projects/projects/my own/theNinjaBlog/gridsome.config.js:90:30)
    at Object.feedItemOptions (/home/edmund/projects/projects/my own/theNinjaBlog/gridsome.config.js:91:13)
    at collectionData.forEach.item (/home/edmund/projects/projects/my own/theNinjaBlog/node_modules/gridsome-plugin-rss/index.js:27:25)
    at Array.forEach (<anonymous>)
    at api.beforeBuild (/home/edmund/projects/projects/my own/theNinjaBlog/node_modules/gridsome-plugin-rss/index.js:26:20)
    at Promise.all.events.(anonymous function).map (/home/edmund/projects/projects/my own/theNinjaBlog/node_modules/gridsome/lib/app/App.js:144:77)
    at Array.map (<anonymous>)
    at App.dispatch (/home/edmund/projects/projects/my own/theNinjaBlog/node_modules/gridsome/lib/app/App.js:143:47)
    at module.exports (/home/edmund/projects/projects/my own/theNinjaBlog/node_modules/gridsome/lib/build.js:25:13)

I have checked outside the config file by reducing the array in a single file component and logging to the console and that seems to work fine.

Edmund1645 commented 5 years ago

It seems that these properties are present on the node object, a few other rss options do not get generated from config like, description, date, and image_url for posts

Edmund1645 commented 5 years ago

I've found a fix, it turns out the other properties are one level deeper, so i had to use node.fields.*

RehanSaeed commented 4 years ago

Do you have a short snippet to add the tags?