I have the following schema.
{
posts: [
{
_id: '5ayuunbdsyuuuyut778'
replies: [{
_id: "67hfudj7e9whduu888",
text: "something"
}]
}
]
}
I want to update the text in particular reply. I am using mongoose.
I have written the query as follows
Post.findOneAndUpdate(
{'posts.replies._id': _id},
{$set: {'posts.$[post].replies.$[reply].text': "something1"}},
{ arrayFilters: [{'post._id': postId}, { 'reply._id': _id }]}
)
This query is not updating the document.
Am I missing something? Do I need to cast ids using ObjectId
You need to use new: true to get the updated value and cast id to mongoose objectId to make it work
Post.findOneAndUpdate(
{ 'posts.replies._id': _id },
{ $set: { 'posts.$[post].replies.$[reply].text': "something1" } },
{ arrayFilters: [{ 'post._id': postId }, { 'reply._id': _id }], new: true }
)
As arrayFilters are something related to mongodb, you need to cast id in mongoose with ObjectId
Post.findOneAndUpdate(
{ 'posts.replies._id': _id },
{ $set: { 'posts.$[post].replies.$[reply].text': "something1" } },
{ arrayFilters: [{ 'post._id': postId }, { 'reply._id': _id }]}
)
must be changed to
Post.findOneAndUpdate(
{ 'posts.replies._id': _id },
{ $set: { 'posts.$[post].replies.$[reply].text': "something1" } },
{ arrayFilters: [{ 'post._id': ObjectId(postId) }, { 'reply._id': ObjectId(_id)}]}
)
来源：https://stackoverflow.com/questions/51324876/arrayfilters-in-mongodb