Preventing duplicates of a reference type from being entered into an array in Sanity.io
7 replies
Last updated: Jan 24, 2022
D
Hey!
Is it possible to prevent duplicates of a reference type from being entered into an array? I'm making a quiz and in the quiz there is a question where a user is allowed to choose images. Each image needs to be tagged with a collection. I'm able to get this to work, but I would like to prevent the tag("collection") from being added to an image more than once. I'll post my code in a comment below.
Is it possible to prevent duplicates of a reference type from being entered into an array? I'm making a quiz and in the quiz there is a question where a user is allowed to choose images. Each image needs to be tagged with a collection. I'm able to get this to work, but I would like to prevent the tag("collection") from being added to an image more than once. I'll post my code in a comment below.
Jan 24, 2022, 1:46 PM
D
export default {
name: "imageOptions",
title: "Image Options",
type: "object",
fields: [
{
name: "images",
title: "Images",
type: "array",
of: [
{
name: "image",
title: "Image",
type: "image",
fields: [
{
name: "alt",
title: "Alternative text",
type: "localeString",
},
{
name: "tags",
title: "tags",
type: "array",
of: [
{
type: "reference",
to: [{ type: "collections" }],
},
],
},
],
},
],
},
],
};Jan 24, 2022, 1:46 PM
A
Hey User. This should be possible by adding a
You'd add it like this:
And then you should see that Studio starts validating it accordingly:
unique()validation rule (https://www.sanity.io/docs/array-type#unique()-49ee9907c730 ) to the
tagsarray.
You'd add it like this:
{
name: "tags",
title: "tags",
type: "array",
validation: Rule => Rule.unique(),
of: [
{
type: "reference",
to: [{ type: "collections" }],
},
],
},Jan 24, 2022, 1:55 PM
D
WOW!! That is exactly what I needed. Thank you so much for the quick reply.
Jan 24, 2022, 2:00 PM
D
Can I ask a quick follow up? is it possible to setup the reference as a tags layout? I haven't been able to get it to work.
something like...
something like...
{
name: "tags",
title: "tags",
type: "array",
options: {
layout: 'tags'
},
validation: Rule => Rule.unique(),
of: [
{
type: "reference",
to: [{ type: "collections" }],
},
],
}Jan 24, 2022, 2:02 PM
A
Unfortunately the tag layout only works for an array of strings at the moment, not references 😕.
Jan 24, 2022, 2:12 PM
D
NP, Thanks for the help!
Jan 24, 2022, 2:13 PM
A
No problem. Let us know if you have any other questions!
Jan 24, 2022, 2:14 PM
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