p5.js-web-editor/server/controllers/collection.controller/removeProjectFromCollection.js

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import Collection from '../../models/collection';
export default function addProjectToCollection(req, res) {
const owner = req.user._id;
const { id: collectionId, projectId } = req.params;
function sendFailure({ code = 500, message = 'Something went wrong' }) {
res.status(code).json({ success: false, message });
}
function sendSuccess(collection) {
res.status(200).json(collection);
}
function updateCollection(collection) {
if (collection == null) {
sendFailure({ code: 404, message: 'Collection not found' });
return null;
}
if (!collection.owner.equals(owner)) {
sendFailure({ code: 403, message: 'User does not own this collection' });
return null;
}
const project = collection.items.find(p => p.projectId === projectId);
if (project != null) {
project.remove();
return collection.save();
}
const error = new Error('not found');
error.code = 404;
throw error;
}
function populateReferences(collection) {
return Collection.populate(
collection,
[
{ path: 'owner', select: ['id', 'username'] },
{
path: 'items.project',
select: ['id', 'name', 'slug'],
populate: {
path: 'user', select: ['username']
}
}
]
);
}
return Collection.findById(collectionId)
.populate('items.project', '_id')
.then(updateCollection)
.then(populateReferences)
.then(sendSuccess)
.catch(sendFailure);
}