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Merge pull request #868 from Hylozoic/861-post-collections
Add support for post Collections
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,73 @@ | ||
| import { isEmpty, mapKeys, pick, snakeCase } from 'lodash' | ||
| const { GraphQLYogaError } = require('@graphql-yoga/node') | ||
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| export async function addPostToCollection(userId, collectionId, postId) { | ||
| const collection = await Collection.findValidCollectionForUser(userId, collectionId) | ||
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| // TODO: Validate that the post can be added to the collection | ||
| const post = await Post.find(postId) | ||
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| if (!post) { | ||
| throw new GraphQLYogaError('Not a valid post') | ||
| } | ||
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| const order = await CollectionsPost.query(q => { | ||
| q.select(bookshelf.knex.raw('max("order") as max_order')) | ||
| q.where({ collection_id: collectionId }) | ||
| }) | ||
| .fetch() | ||
| .then(result => result.get('max_order')) | ||
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| await new CollectionsPost({ user_id: userId, collection_id: collectionId, post_id: post.id, order: order ? order + 1 : 0 }).save() | ||
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| return { success: true } | ||
| } | ||
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| export function createCollection(userId, data) { | ||
| const whitelist = mapKeys(pick(data, ['name', 'groupId']), (v, k) => snakeCase(k)) | ||
| if (isEmpty(whitelist)) return Promise.resolve(null) | ||
| return Collection.create({ userId, ...data }) | ||
| } | ||
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| export async function removePostFromCollection(userId, collectionId, postId) { | ||
| const collection = await Collection.findValidCollectionForUser(userId, collectionId) | ||
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| const linkedPost = await CollectionsPost.query(q => q.where({ collection_id: collectionId, post_id: postId })).fetch() | ||
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| if (!linkedPost) { | ||
| throw new GraphQLYogaError('Not a valid post') | ||
| } | ||
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| await linkedPost.destroy() | ||
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| return { success: true } | ||
| } | ||
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| export async function reorderPostInCollection(userId, collectionId, postId, newOrderIndex) { | ||
| const collection = await Collection.findValidCollectionForUser(userId, collectionId) | ||
| const linkedPost = await CollectionsPost.query(q => q.where({ collection_id: collectionId, post_id: postId })).fetch() | ||
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| if (!linkedPost) { | ||
| throw new GraphQLYogaError('Not a valid post') | ||
| } | ||
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| const oldOrder = linkedPost.get('order') | ||
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| if (oldOrder > newOrderIndex) { | ||
| await CollectionsPost.query() | ||
| .where({ collection_id: collectionId }) | ||
| .andWhere('order', '>=', newOrderIndex) | ||
| .andWhere('order', '<', oldOrder) | ||
| .update({ order: bookshelf.knex.raw('?? + 1', ['order']) }) | ||
| } else if (oldOrder < newOrderIndex) { | ||
| await CollectionsPost.query() | ||
| .where({ collection_id: collectionId }) | ||
| .andWhere('order', '<=', newOrderIndex) | ||
| .andWhere('order', '>', oldOrder) | ||
| .update({ order: bookshelf.knex.raw('?? - 1', ['order']) }) | ||
| } | ||
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| await linkedPost.save({ order: newOrderIndex }) | ||
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| return { success: true } | ||
| } |
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