I want to see if an array contains one or more values inside it.
This is a model field definition:
keywords: {
type: Sequelize.ARRAY(Sequelize.STRING),
defaultValue: [],
allowNull: false,
},
This is the query I am testing:
context.app.services.jobOffers.Model.findAll({
where: {
keywords: {
$contains: ['hello'],
},
},
})
.then(result => {
console.log('RESULT:', result)
})
.catch(err => {
console.log('ERROR:', err)
})
This is the error I am receiving:
ERROR: TypeError: values.map is not a function
This is a reference to a similar issue, where I tried to replicate the solution but to no effect.
https://github.com/feathersjs-ecosystem/feathers-sequelize/issues/135
It seems the issue was with the Sequelize versions. This was made clear to me by one of the authors of Feathers.js #daffl
"In Sequelize v5 and later you need to use Symbols like [Op.contains] see (http://docs.sequelizejs.com/manual/querying.html#operators)"
So the fix is to change this line of code
where: {
keywords: {
[Op.contains]: ['hello'],
},
},
Related
I'm learning ho to develop GraphQL service with express, express-graphql, **graphql, mongoose,
db.collection.find has an optional query parameter that specifies selection filter using query operators.
I wonder if it is possible to define a schema in which to define an argument for a query field that ultimately it is passed as it is to the collection find methods.
for example I expect that the graphql query:
{ todosQuerable(query: {title: "Andare a Novellara"})
{ _id, title, completed }
}
responds with:
{
"data": {
"todos": [
{
"title": "Andare a Novellara",
"completed": false
}
]
}
}
since in mongo
> db.Todo.find({title: 'Andare a Novellara'})
{ "_id" : ObjectId("600d95d2e506988bc4430bb7"), "title" : "Andare a Novellara", "completed" : false }
I'm thinking something like:
todosQuerable: {
type: new graphql.GraphQLList(TodoType),
args: {
query: { type: <???????????????> },
},
resolve: (source, { query }) => {
return new Promise((resolve, reject) => {
TODO.find(query, (err, todos) => {
if (err) reject(err)
else resolve(todos)
})
})
}
}
I have made a few attempts but have not been able to get an idea of which type I should use in this case
ho help reproduce the problem here the source repository of my tests
Please note that this works fine:
todosByTitle: {
type: new graphql.GraphQLList(TodoType),
args: {
title: { type: graphql.GraphQLString },
},
resolve: (source, { title }) => {
return new Promise((resolve, reject) => {
TODO.find({title: {$regex: '.*' + title + '.*', $options: 'i'}}, (err, todos) => {
if (err) reject(err)
else resolve(todos)
})
})
}
}
but what I'm looking for is something more generic: I would like to grab graphql field argument named query and pass it as is to the the query parameter of the mongo collection find.
So the good news is you can do whatever you want. The bad news is that:
You have to do it yourself
You have to add every searchable field, so you'll probably end up with two copies of the Todo object here.
The type you're looking for is just a custom input object type like this:
Notice the GraphQLInputObjectType below is different from GraphQLObjectType.
var TodoQueryType = new graphql.GraphQLInputObjectType({
name: 'TodoQuery',
fields: function () {
return {
_id: {
type: graphql.GraphQLID
},
title: {
type: graphql.GraphQLString
},
completed: {
type: graphql.GraphQLBoolean
}
}
}
});
todosQuerable: {
...
type: new graphql.GraphQLList(TodoType),
...
args: {
query: { type: TodoQueryType },
},
...
}
These two queries work great!
(this is me using aliases so I can make the same query twice in one call)
{
titleSearch: todosQuerable(query:{ title:"Buy orange" }) {
_id
title
completed
}
idSearch: todosQuerable(query:{ _id:"601c3f374b6dcc601890048d" }) {
_id
title
completed
}
}
Footnote:
Just to have it said, this is generally a GraphQL anti-pattern, as this is building an API based on your database choices, rather than as a client-driven API.
Regex Edit as requested:
If you're trying to do regular expression lookups, you have to figure out how to programmatically convert your strings into regular expressions. i.e. your input is a string ("/Novellara/"), but mongoose requires passing a RegExp to do wildcards (/Novellara/, no quotes).
You can do that a number of ways, but I'll show one example. If you change your input fields to use two properties of value & isExpression, like below, you can do it, but you have to specifically craft your query, since it's no longer just a passthrough.
var ExpressableStringInput = new graphql.GraphQLInputObjectType({
name: 'ExpressableString',
fields: {
value: {
type: graphql.GraphQLString
},
isExpression:{
type: graphql.GraphQLBoolean,
defaultValue: false,
}
}
})
var TodoQueryType = new graphql.GraphQLInputObjectType({
name: 'TodoQuery',
fields: function () {
return {
_id: {
type: graphql.GraphQLID
},
title: {
type: ExpressableStringInput
},
completed: {
type: graphql.GraphQLBoolean
}
}
}
});
// resolver
todosQuerable: {
type: new graphql.GraphQLList(TodoType),
args: {
query: { type: TodoQueryType },
},
resolve: async (source, { query }) => {
const dbQuery = {};
if (query.title.isExpression) {
dbQuery.title = new RegExp(query.title.value);
} else {
dbQuery.title = query.title.value;
}
return new Promise((resolve, reject) => {
TODO.find(dbQuery, (err, todos) => {
if (err) reject(err)
else resolve(todos)
})
})
}
}
your query would then look like
query {
todosQuerable(query:{ title: { value: "Buy.*", isExpression: true }}) {
_id
title
completed
}
}
This query makes sense in my mind. If I think about the form you would show to a user, there is probably an input box and a checkbox that says "is this a regular expression?" or something, which would populate this query.
Alternatively, you could do like string matching: if the first and last characters are "/", you automagically make it into a regex before passing it into mongoose.
I'm using react, apollo, graphql, hasura, postgres as my stack to interact with the database. I think my issue is something small, so I'll just focus on the part that's not working rather than posting the whole code.
Thanks.
Error: GraphQL error: unexpected variables in variableValues: birthday
at new ApolloError (bundle.esm.js:63)
at Object.next (bundle.esm.js:1004)
at notifySubscription (Observable.js:135)
at onNotify (Observable.js:179)
at SubscriptionObserver.next (Observable.js:235)
at bundle.esm.js:866
at Set.forEach (<anonymous>)
at Object.next (bundle.esm.js:866)
at notifySubscription (Observable.js:135)
at onNotify (Observable.js:179)
at SubscriptionObserver.next (Observable.js:235)
at bundle.esm.js:76
variables{ id: 2324324, name: "Fred", birthday: "1991-01-11" }
If i remove birthday the query works.
Here is the function
const onUpdateUser = (options) => {
updateUser({
variables: Object.assign({ id: userId }, options),
optimisticResponse: {
__typename: "mutation_root",
update_users: {
__typename: "users_mutation_response",
affected_rows: 1,
returning: [
{
__typename: "users",
id: userId,
...options,
},
],
},
},
});
};
input {birthday: '1991-01-11'}
So without looking at your graphql query, I think you may be thinking of it a little bit off.
You can't dynamically add non-existent variables to a graphql query. The error is telling you that you are trying to add a variable that doesn't exist in your query
i.e. this with NOT work because you haven't defined birthday.
mutation updateUser(
$userId: Int!
$birthday (UNDEFINED)
) {
rest of query...
}
If you need to add a dynamic amount of variables, you could do something like this.
React Code
const onUpdateUser = (options) => {
updateUser({
variables: {
userId,
userVariables: options
},
optimisticResponse: {
__typename: "mutation_root",
update_users: {
__typename: "users_mutation_response",
affected_rows: 1,
returning: [
{
__typename: "users",
id: userId,
...options,
},
],
},
},
});
};
GraphQL mutation
mutation updateUser(
$userId: Int!
$userVariables: user_set_input!
) {
update_user(
where: { id: { _eq: $userId} }
_set: $userVariables
) {
affected_rows
}
}
https://hasura.io/docs/1.0/graphql/manual/mutations/update.html
I'm trying to send an array to mongodb, but the res.json(user) returns an empty biddingGroup:[] and mongodb document never has field biddingGroup appear. I've looked at stack posts and have seen suggestions for schema.
I've tried
biddingGroup: [{type: String}],
biddingGroup: [String],
biddingGroup: {type: String},
I haven't found a working schema that captures the data yet.
I even hardcoded biddingGroup: ['test'] too, but it never shows up.
app.js
app.put('/api/listings/:id', (req, res) =>
Post.update({
id: req.query.id
}, {
$set: {
currentBid: req.query.currentBid,
lastBidTimeStamp: req.params.lastBidTimeStamp,
biddingGroup: ['test']
}
}, {
multi: false //set to false to ensure only one document gets updated
}).exec().then(data => {
console.log(data);
}, err => {
console.log(err);
})
);
Any help is appreciated.
You need to use exec() at the end to run the query. That is the function that actually runs the request and returns you the promise. Plus your usage of the update function in general is off.
Try this:
Post.update({
id: req.query.id
}, {
$set: {
currentBid: req.query.currentBid,
lastBidTimeStamp: req.params.lastBidTimeStamp,
biddingGroup: ['test']
}
}, {
multi: false //set to false to ensure only one document gets updated
}).exec().then(data => {
console.log(data);
}, err => {
console.log(err);
});
I am working on a table planner application where guests can be assigned to tables. The table model has the following Schema:
const mongoose = require('mongoose');
mongoose.Promise = global.Promise;
const tableSchema = new mongoose.Schema({
name: {
type: String,
required: 'Please provide the name of the table',
trim: true,
},
capacity: {
type: Number,
required: 'Please provide the capacity of the table',
},
guests: [{
type: mongoose.Schema.Types.ObjectId,
ref: 'Guest',
}],
});
module.exports = mongoose.model('Table', tableSchema);
Guests can be dragged and dropped in the App (using React DND) to "Table" React components. Upon being dropped on a table, an Axios POST request is made to a Node.js method to update the Database and add the guest's Object ID to an array within the Table model:
exports.updateTableGuests = async (req, res) => {
console.log(req.body.guestId);
await Table.findOneAndUpdate(
{ name: req.body.tablename },
{ $push: { guests: req.body.guestId } },
{ safe: true, upsert: true },
(err) => {
if (err) {
console.log(err);
} else {
// do stuff
}
},
);
res.send('back');
};
This is working as expected, except that with each dropped guest, the Table model's guests array is updated with the same guest Object ID twice? Does anyone know why this would be?
I have tried logging the req.body.guestID to ensure that it is a single value and also to check that this function is not being called twice. But neither of those tests brought unexpected results. I therefore suspect something is wrong with my findOneAndUpdate query?
Don't use $push operator here, you need to use $addToSet operator instead...
The $push operator can update the array with same value many times
where as The $addToSet operator adds a value to an array unless the
value is already present.
exports.updateTableGuests = async (req, res) => {
console.log(req.body.guestId);
await Table.findOneAndUpdate(
{ name: req.body.tablename },
{ $addToSet : { guests: req.body.guestId } },
{ safe: true, upsert: true },
(err) => {
if (err) {
console.log(err);
} else {
// do stuff
}
},
);
res.send('back');
};
I am not sure if addToSet is the best solution because the query being executed twice.
If you used a callback and a promise simultaneously, it would make the query executes twice.
So choosing one of them would make it works fine.
Like below:
async updateField({ fieldName, shop_id, item }) {
return Shop.findByIdAndUpdate(
shop_id,
{ $push: { menuItems: item } },
{ upsert: true, new: true }
);
}
I'm working on an app using MongoDB and Express.js.
I am creating a post handler that updates a toy (found by its id) with a new proposed name for the toy (which is pushed onto a nameIds array that contains the ids of the other proposed names):
router.post('/names', (req, res) => {
const toyId = req.body.toyId;
const name = req.body.newName;
mdb.collection('names').insertOne({ name }).then(result =>
mdb.collection('toys').findAndModify({
query: { id: toyId },
update: { $push: { nameIds: result.insertedId } },
new: true
}).then(doc =>
res.send({
updatedToy: doc.value,
newName: { id: result.insertedId, name }
})
)
)
});
However, when I test this, I receive this error:
name: 'MongoError',
message: 'Either an update or remove=true must be specified',
ok: 0,
errmsg: 'Either an update or remove=true must be specified',
code: 9,
codeName: 'FailedToParse'
I'm not new to MongoDB, but this simple call is baffling me.
Thanks for any help you can provide!
That is the format for mongo shell. Using mongo driver you would call with these arguments:
.findAndModify( //query, sort, doc, options, callback
{ id: toyId }, //query
[], //sort
{ $push: { nameIds: result.insertedId } }, // doc update
{ new: true }, // options
function(err,result){ //callback
if (err) {
throw err
} else {
res.send({
updatedToy: result.value,
newName: { id: result.insertedId, name }
})
}
}
)