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태그 팔로우 로더 사용 #2815

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태그 팔로우 로더 사용 #2815

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23 changes: 18 additions & 5 deletions apps/website/src/lib/server/graphql/schemas/tag.ts
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Original file line number Diff line number Diff line change
Expand Up @@ -4,6 +4,7 @@ import { NotFoundError } from '$lib/errors';
import { redis, useCache } from '$lib/server/cache';
import {
database,
inArray,
notInArray,
Posts,
PostTags,
Expand Down Expand Up @@ -132,12 +133,24 @@ Tag.implement({
return false;
}

const follows = await database
.select({ id: TagFollows.id })
.from(TagFollows)
.where(and(eq(TagFollows.tagId, tag.id), eq(TagFollows.userId, context.session.userId)));
const loader = context.loader({
name: 'tagFollows(tagId)',
nullable: true,
load: async (tagIds: string[]) => {
if (!context.session) {
return [];
}

return database
.select()
.from(TagFollows)
.where(and(inArray(TagFollows.tagId, tagIds), eq(TagFollows.userId, context.session.userId)));
},

key: (tagFollow) => tagFollow?.tagId,
});

return follows.length > 0;
return await loader.load(tag.id).then((follow) => !!follow);
},
}),

Expand Down