I must be missing something because I am fairly sure this should work, since I have used this same method before in a different command in the same bot...
I have a bot that connects to a mysql database. Inside a table in the database that stores the info for a match of a game I'm making, I store the Discord ID's of each player. After pulling those ID's from the table, specifying which one I'd like the user object retrieved for, and trying to use .get() (also attempted to use .find() with a username instead), both result in "undefined"... I have a feeling the bot doesn't find the entire user collection, because when I console.log(client.users), I get Collection [Map] {} So, it looks to be empty? I have also put in the ID itself instead of a variable and it still can't find it. So, I have a feeling the bot just doesn't get the users collection for some reason.
In the below code:
playerIDArray = the player ID's I stored at the start of the match of the game, pulling them from the mysql table. Stored in array format ("player 1's ID" as index 0, "player 2's ID" as index 1, "player 3's ID" as index 2, etc)
playerIndex = the index of the target player in playerIDArray, found in an earlier step before the below code runs, that I know returns what I expect.
const Discord = require('discord.js');
const client = new Discord.Client();
const mysql = require("mysql2/promise");
...
...
var targetUserID = playerIDArray[playerIndex]
var targetUser = client.users.get(targetUserID)
console.log(targetUser)
Each time I run this, I get "undefined" and for the life of me can't figure out why... I just want to retrieve the user group so I can send a message to that user, giving them an opportunity to counter before I modify the mysql table and move cards around that would then need to be immediately altered again to restore what was just removed via a counter card.
I must just be dumb and am missing something but I'm lost as to what to try now... Thanks for any help in advance.
You can only use client.users ( and other discord.js Collections ) after the ready event fired.
So you need to put the code that uses client.users into
client.on('ready', () => { /* CODE */});
ready will be fired after successful client.login('token');.
Related
I'm new to firebase and currently I'm still trying to learn how to get the latest children node based in this RTDB. My nodeMCU will send new data periodically so I'm trying to get the latest node when its added and the value of that node. Can you provide with a sample code for me to understand better? And if possible please explain like I'm 5. Thank you and have a good day.
From what I understand you have an Arduino module that is going to be constantly introducing data into your database.
What you want is to be able to read the value shown in the image as MQ7 every time a new value is added.
If this is the case there are different ways to obtain it.
The first and most common one would be to use the firebase Child Added event. With this event you can handle the data entered every time there is an addition to the reference to the database.
Using this event you would have a set of all the values entered in your reference and with each addition automatically (In Real Time) this set would be updated.
Taking your image as an example, the query code would be something like this (JS):
dbRef.child("Sensor MQ7").on("child_added", (snap) => {
for (i in snap.val()) {
const value_MQ7 = snap.child(i).child("MQ7").val()
// Do what you want with the value
console.log(value_MQ7)
}
})
If you don’t want to have that set with all the values entered in your reference, the best option would be a new function that returns only the value you are requesting, that is, a function that returns the MQ7 value of the last object entered in your reference sensor MQ7.
The query code would be something like this (JS):
const query = dbRef.child("Sensor MQ7").orderByKey().limitToLast(1);
query.get().then((snap) => {
for (i in snap.val()) {
// Do what you want with the value
const value_MQ7 = snap.child(i).child("MQ7").val()
console.log(value_MQ7)
}
})
Here is my problem:
I have a firestore collection that has a number of documents. There are about 500 documents generated/updated every hour and saved to the collection.
I would like to query the collection and setup a real-time snapshot listener for a subset of document IDs, that are provided by the client.
I think maybe I could to something like this (this syntax is likely not correct...just trying to get a feel for if it's even possible...but isn't the "in" limited to an array of 10 items? ):
const subbedDocs = ["doc1","doc2","doc3","doc4","doc5"]
docsRef.where('docID', 'in', subbedDocs).onSnapshot((doc) => {
handleSnapshot(doc);
});
I'm sorry, that code probably doesn't make sense....I'm still trying to learn all the ins and outs of Firestore.
Essentially, what I am trying to do is take an array of ID's and setup a .onSnapshot listener for those ID's. This list of IDs could be upwards of 40-50 items. Is this even possible? I am trying to avoid just setting up a listener on the whole collection and filtering out things I am not "subscribed" too as that seems wasteful from a resources perspective.
If you have the doc IDs in your array (it looks like you have) you can loop over them and start a listener during that:
const subbedDocs = ["doc1", "doc2", "doc3", "doc4", "doc5"];
for (let i = 0; i < subbedDocs.length; i++) {
const docID = subbedDocs[i];
docsRef.doc(docID).onSnapshot((doc) => {
handleSnapshot(doc);
});
}
It would be better to listen to a query and all filtered docs at once. But if you want to listen to each of them with a explicit listener that would do the trick.
As you've discovered, Firestore's in operator only allows up to 10 entries in the array. I'm also guessing you've added the docID as a field in the document, since I don't believe 'docID references the actual documentid.
I would not take this approach, because of the 10-entry limitation. What I would do is, as the client is selecting documents to follow, set a field (same in each document) to a unique Id for the client, so your query completely avoids the limitation. You can allow an unlimited number of Client listeners (up to implementation limits of Firestore) if you add that client ID into an array (called something like "ListenerArray") [again, as the client is selecting them]. Your query would be more like:
docsRef.where('ListenerArray', 'array-contains', clientID).onSnapshot((doc) => {
handleSnapshot(doc);
})
array-contains checks a single value against all entries in a document array, without limit. Every client can mark any number of documents to subscribe to.
I'm building a ticket system that whenever a user react's with the emoji, a channel get's created with him in it and the team that deals with the tickets. My problem is that when I want to display the user's name in the channel through the following code await message.guild.channels.create(``🎫│${reactor}``, {type: 'text',} and reactor is defined by const reactor = reaction.message.guild.members.cache.get(user.id); I get the user's ID in the channel name. My question is if there's a way to name the channel 🎫│User instead of 🎫│ID (with ID I mean the user's Discord ID, not the actual text 'ID').
There's quite a simple solution to your issue, being that you're attempting to use a GuildMember object, instead of a User object.
At the time that I'm writing this (And it will probably stay like this forever), you're not able to get the username of a GuildMember, but would first of all have to convert it into a User object.
This could be very easily done with the following code:
const member = reaction.guild.member(user.id)
const name = member.user.username
message.guild.channels.create(`${name}s ticket`, {
type: 'text'
})
I'd also like to mention that you're not required to add message after reaction when you're trying to get the guild object! You can simply use the reaction variable you've created in your callback and use it to get the guild object using reaction.guild!
I'm working on a little web application that will crawl and update baseball standings by day and track teams positions (among other things) over time.
I have an API I grab all of this from and a collection in MongoDB that stores all the team data and information for the current day. Right now I just run this manually but eventually it'll be automated to run at like 3am or whenever.
The API supplies a unique ID for each team that never changes. So what I'm doing is I'm taking in the team data from the API. Passing it to a function that then extracts the teams data (there is other data from the response object I don't need), puts it into an object for replacement, and then wherever that team ID exist in the collection its document is replaced in a bulkWite.
async function currentStandings(db,team_standings,callback){
const current_standings = db.collection('current_standings');
let replacePool = [];
for(const single_team of team_standings.data.standing){
let replaceOnePusher = {
replaceOne: {
"filter": {"team_id": single_team.team_id},
"replacement": single_team
}
}
replacePool.push(replaceOnePusher);
}
await current_standings.bulkWrite(replacePool);
callback();
}
However when I execute this code for the first time each day I get an error reading BulkWriteError: After applying the update, the (immutable) field '_id' was found to have been altered to _id: ObjectId('5f26e57b6831761ac840bf1d') (not the same ID every day) and if I look in Compass the data isn't updated. If I immediately run the script again, it goes through successfully without error. Refreshing the data in compass generates the correct data.
Can someone explain to me what is going wrong here? This is actually my first time using MongoDB since I wanted to learn it and this pet project seemed like a good place to start.
i am using Strapi for a prototype and i am meeting the following issue. I have created a new content type "Checklist" and i added in it a relation property 1 to many with the User model provided by the users-permissions plugin.
Then i wanted to add some custom logic on the lifecycle call back, in beforeSave and in beforeUpdate from which i would like to access the user assigned to the Checklist.
The code looks like that:
{
var self = module.exports = {
// Before saving a value.
// Fired before an `insert` or `update` query.
generateLabel : (model) => {
var label = "";
var day = _moment(model.date,_moment.ISO_8601).year();
var month = _moment(model.date,_moment.ISO_8601).day();
var year = _moment(model.date,_moment.ISO_8601).month();
console.log(model);
if (model.user) {
label = `${model.user}-${year}-${month}-${day}`;
}else{
label = `unassigned-${year}-${month}-${day}`;
}
return label;
I call the method generateLabel from the callback. It works, but my model.user always returned undefined. It is a 1-n property. I can access model.date property (one of the field i have created) without any issue, so i guess the pbs is related to something i have to do to populate the user relation, but i am not sure on how to proceed.
When i log the model object, the console display what i guess is a complete mongoose object but i am not sure where to go from there as if i try to access the property that i see in the console, i will always reach an undefined.
Thanks in advance for your time, i use the following
strapi: 3.0.0-alpha.13.0.1
nodejs: v9.10.1
mongodb: 3.6.3
macos high sierra
Also running into the similar / same issue, I think this has to do with the user permissions plugin, and having to use that to access the User model. Or I thought about trying to find the User that’s associated with the id of the newly created record. I’m trying to use AfterCreate. Anyone that could shed some light on this would be great!
It's because relational attributes are not send in create fonction (See your checklist service add function).
Relations are handled in an other function updateRelations.
The thing you can do is to send values in Checklit.create()