30 lines
640 B
JavaScript
30 lines
640 B
JavaScript
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import Collection from '../../models/collection';
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import User from '../../models/user';
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export default function collectionForUserExists(username, collectionId, callback) {
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function sendFailure() {
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callback(false);
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}
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function sendSuccess(collection) {
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callback(collection != null);
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}
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function findUser() {
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return User.findOne({ username });
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}
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function findCollection(owner) {
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if (owner == null) {
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throw new Error('User not found');
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}
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return Collection.findOne({ _id: collectionId, owner });
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}
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return findUser()
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.then(findCollection)
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.then(sendSuccess)
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.catch(sendFailure);
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}
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