i know compare password using bcrypt module is work too, but out of curiousity, i want to know if there is a away to using sequelize fn and postgres crypt?
i already try this :
const user = await Users.findOne({
where: {
username: myUsername,
password: sequelize.fn('crypt',myPassword,'password')
}
});
but not work because in the queries look like
SELECT "id", "username", "password", FROM "users" AS "Users"
WHERE "Users"."username" = 'yosiazwan' AND "Users"."password" = crypt('testing', 'password');
'password' is in single quotes when it should not. if i try that queries in pgadmin, it doesn't work too. but if i remove the 'password' single quotes, like this
SELECT "id", "username", "password", FROM "users" AS "Users"
WHERE "Users"."username" = 'yosiazwan' AND "Users"."password" = crypt('testing', password);
and that will works. is there any way to remove that single quotes in sequelize fn?
https://sequelize.org/api/v6/class/src/sequelize.js~sequelize#static-method-fn
public static fn(fn: string, args: any): fn since v2.0.0-dev3
Creates an object representing a database function. This can be used
in search queries, both in where and order parts, and as default
values in column definitions. If you want to refer to columns in your
function, you should use sequelize.col, so that the columns are
properly interpreted as columns and not a strings.
https://sequelize.org/api/v6/class/src/sequelize.js~sequelize#static-method-col
public static col(col: string): col since v2.0.0-dev3
Creates an object which represents a column in the DB, this allows
referencing another column in your query. This is often useful in
conjunction with sequelize.fn, since raw string arguments to fn will
be escaped.
Your code should look like
const user = await Users.findOne({
where: {
username: myUsername,
password: sequelize.fn('crypt',myPassword, sequelize.col('password'))
}
});
Related
My mongodb collection login is structured as so:
email: "John.doe#gmail.com"
password: "password"
full_name: "John Doe"
list_of_docs_bought: Array
0: "g81h8"
1: "fursr"
now, in my code, what I want to do is insert a new id into the list_of_docs_bought array. My code is as follows:
let collection = database.collection('login')
let doc = collection.updateOne({ email: req.session.username }, {$set: { list_of_docs_bought: '2xx729' }})
however, this isn't going to work because I need to essentially insert a new id into there, not update it. But if I use .insert(), I am not sure if that is going to work because it will insert a totally new record instead of just into the array. Can anyone offer some help?
You can use upsert which does exactly what you need.
Explanation below is taken from the official docs.
Creates a new document if no documents match the filter. For more details see upsert behavior.
Updates a single document that matches the filter.
So you would need to change your code to that:
let doc = collection.updateOne({ email: req.session.username }, {$push: { list_of_docs_bought: '2xx729' }}, { upsert: true })
Edit: You need to use the $push operator in order to add an element in an array. The $set operator will just overwrite it.
So I have a situation where I need to delete elements in an array of reference / ObjectIds, but the delete condition will be based on a field in the reference.
For example, I have schemas like the following:
const UserSchema = new mongoose.Schema({
firstName: String,
lastName: String,
homeFeeds:[{type: Schema.Types.ObjectId, requried: true, ref: "Activity"}];
}); // User , is the referenece name
const ActivitySchema = new mongoose.Schema({
requester: {type: Schema.Types.ObjectId, requried: true, ref: "User"},
message: String,
recipient: {type: Schema.Types.ObjectId, requried: true, ref: "User"},
}) // Activity, is the reference name
Now I need to delete some of the homeFeeds for a user, and the ones that should be deleted need to be by certain requester. That'll require the homeFeeds (array of 'Activity's) field to be populated first, and then update it with the $pull operator, with a condition that the Activity requester matches a certain user.
I do not want to read the data first and do the filtering in Nodejs/backend code, since the array can be very long.
Ideally I need something like:
await User.find({_id: ID})
.populate("homeFeeds", "requester")
.updateMany({
$pull: {
homeFeeds.requester: ID
}
});
But it does not work, Id really appreciate if anyone can help me out with this?
Thanks
MongoDB doesn't support $lookup in update as of version v6.0.1.
MongoServerError: $lookup is not allowed to be used within an update.
Though, this doesn't have to do with Mongoose's populate as populate doesn't depend on $lookup and fires additional queries to get the results. Have a look at here. Therefore, even if, you could achieve what you intend, that is avoiding fetching a large array on nodejs/backend, using mongoose will do the same thing for you behind the scenes which defeats your purpose.
However you should raise an issue at Mongoose's official github page and expect a response.
I have a MongoDB document in the following format. I can verify that it exists in MongoDB using Compass. I'm using TypeORM to make the query, not MondoDB.
{
_id: 'some id'
user: {
details: {
email: "test#test.ch",
username: "testname"
},
status: 'active'
}
}
Is it possible to use TypeORM to find by, say, the email?
I've tried
const emailExists = await this.userRepo.findOneBy({
user: {
details: {
email: "test#test.ch"
}
}
});
but emailExists always returns null even though I can validate that it exists in MongoDB. I've tried other ways to find by email using find, findOne, and more.
How do you find a matching value of a child property, like email? Is there a better approach?
MongoDB: Query on Nested Field
To specify a query condition on fields in an embedded/nested document, use dot notation.
Example: 'field.nestedField'
When querying using dot notation:
The field and nested field must be inside quotation marks.
Applying in your code:
const emailExists = await this.userRepo.findOneBy({'user.details.email': 'test#test.ch'});
Reference:
MongoDB Official Documentation: Query on Embedded/Nested Documents
Update: Looks TypeORM not work well with MongoDB, but you can try use $match.
Example:
$match : { 'field.nestedField': nestedField }
Applying in your code:
this.userRepo.findOneBy({$match: { 'user.details.email': 'test#test.ch' }});
If not work maybe try to change TypeORM to Mongoose.
Reference:
https://github.com/typeorm/typeorm/issues/2483
i have my typeorm column like this, what i want is an array of JSON object which i manage to get.
#Column({
type: 'jsonb',
array: false,
default: () => "'[]'",
nullable: false,
})
tokens!: Array<{ token: string }>;
this is how the field looks, and am fine with it, what i want is to find a document with a particular token, so i came up with the below code, but it returns an empty array.
const user = await User.find({ where: { _id: decoded._id, tokens: { token: token } } });
normally when am using mongooe i can get this working using
const user = await User.findOneBy({_id: decoded._id, "tokens.token": token,}); and this returns a particular user, with the id and token string passed.
i want help on how to find a user using the id and the token string inside in array of object, thanks.
TypeORM does not natively support queries on PostreSQL jsonb columns. Performing a query on the data in a jsonb column would require you to either issue a raw query or write your own WHERE clause in.where or .addWhere of a query builder (doc).
For reference, the jsonb query syntax documentation can be found here.
I have a MarkLogic 8 database:
declareUpdate();
var book0 = {
id: fn.generateId({qwe: 'book'}),
username: 'book',
password: 'pass'
};
var book1 = {
id: fn.generateId({asd: 'book'}),
username: 'user',
password: 'pass1'
};
xdmp.documentInsert(
'zz' + book0.id,
book0,
xdmp.defaultPermissions(),
['qwe']);
xdmp.documentInsert(
'xx' + book1.id,
book1,
xdmp.defaultPermissions(),
['qwe']);
So I want to find them by name with the Node.js API:
var db = marklogic.createDatabaseClient(connection.connInfo);
var qb = marklogic.queryBuilder;
function findByName(name) {
return db.documents.query(
qb.where(
qb.collection('qwe'),
qb.value('username', name)
)
).result();
}
The problem is that it finds not only user or user0, but also users and if I create a document with username book it will find both book and books.
A values query matches the entire text of a JSON property by stemming each word in the text (if stemming is enabled, which is the default).
Where (as in this case) that's not what you want, you can do either of the following:
Create a string range index (with the root collation if you only need exact matches) for the JSON property
Turn on word searches in the database configuration and use the "unstemmed" option on the query.
If you also turn off stemmed search in the database configuration, you don't have to pass the option (and avoid the extra resource required for both types of indexes).
To limit the configuration change to a specific property, you can configure a field for the property instead of configuring the entire database.
For more background, see:
http://docs.marklogic.com/guide/search-dev/stemming
http://docs.marklogic.com/guide/admin/text_index
http://docs.marklogic.com/cts.jsonPropertyValueQuery?q=cts.jsonPropertyValueQuery&v=8.0&api=true
Hoping that helps,