sequelize | Sequelize module for Nest framework 🍈 | Web Framework library
kandi X-RAY | sequelize Summary
kandi X-RAY | sequelize Summary
Sequelize module for Nest.
Support
Quality
Security
License
Reuse
Top functions reviewed by kandi - BETA
Currently covering the most popular Java, JavaScript and Python libraries. See a Sample of sequelize
sequelize Key Features
sequelize Examples and Code Snippets
Community Discussions
Trending Discussions on sequelize
QUESTION
I'm trying to docerize my NodeJS API together with a MySQL image. Before the initial run, I want to run Sequelize migrations and seeds to have the tables up and ready to be served.
Here's my docker-compose.yaml
:
ANSWER
Answered 2021-Jun-15 at 15:38I solved my issue by using Docker Compose Wait. Essentially, it adds a wait loop that samples the DB container, and only when it's up, runs migrations and seeds the DB.
My next problem was: those seeds ran every time the container was run - I solved that by instead running a script that runs the seeds, and touch
s a semaphore file. If the file exists already, it skips the seeds.
QUESTION
I am using sequelize with express typescript.
I was use sequelize-cli to generate User model. When I tried to get User from model.
I get an error: Property 'User' does not exist on type 'typeof db'
How can I access to User model inside my database model.
Thank you for your help.
This is my code.
model/index.js
...ANSWER
Answered 2021-Jun-13 at 03:51You can use any
to fix this error:
QUESTION
I wanted to create new record if the the record with specified column name does not match or exist else update it.
I have a Model named AssignedDownloadRoute
and defined it like this
ANSWER
Answered 2021-Jun-11 at 20:19It appears that only one field in your model would qualify as unique (assigned_download_route_id
) since it is defined as the primary key. Since that value is not included in your payload, there is nothing unique about each payload. If you would like route_code
to be a unique value, you must define it accordingly in your model with the unique: true
option.
QUESTION
My program grabs ~70 pages of 1000 items from an API and bulk-inserts it into a SQLite database using Sequelize. After looping through a few times, the memory usage of node goes up to around 1.2GB and and then eventually crashes the program with this error: FATAL ERROR: MarkCompactCollector: young object promotion failed Allocation failed - JavaScript heap out of memory
. I've tried using delete
for all of the big variables that I use for the response of the API call and stuff with variable = undefined
and then global.gc()
, however I still get huge amounts of memory usage and eventually it crashes. Would increasing the memory cap of Node.js help? Or would the memory usage of it just keep increasing until it hits the next cap?
Here's the full output of the error:
...ANSWER
Answered 2021-Jun-10 at 10:01From the data you've provided, it's impossible to tell why you're running out of memory.
Maybe the working set (i.e. the amount of stuff that you need to keep around at the same time) just happens to be larger than your current heap limit; in that case increasing the limit would help. It's easy to find out by trying it, e.g. with --max-old-space-size=8000
(megabytes).
Maybe there's a memory leak somewhere, either in your own code, or in one of your third-party modules. In other words, maybe you're accidentally keeping objects reachable that you don't really need any more.
If you provide a repro case, then people can investigate and tell you more.
Side notes:
- according to your output, heap memory consumption is growing to ~4 GB; not sure why you think it tops out at 1.2 GB.
- it is never necessary to invoke
global.gc()
manually; the garbage collector will kick in automatically when memory pressure is high. That said, if something is keeping old objects reachable, then the garbage collector can't do anything.
QUESTION
I have a Postgres database using Sequelize (node/express) as ORM. I have a table called students, in it there are columns: id and name.
In this students table, I have several registered students, but a detail: the last registered ID is 34550 and the first is 30000, they come from an import from a previous database, I need to continue counting from 34550, or that is, from the last registered student. However, when I register a student via API, the generated ID is below 30000. I know that in mysql the ID field being AUTO INCREMENT would solve it, however, as I understand it, postgres works in a different way.
How could I solve this problem?
The migration used to create the table is as follows:
...ANSWER
Answered 2021-Jun-10 at 17:32Based on Frank comment, I was able to adjust using:
QUESTION
Installed Docker, downloaded the mysql image, using VS Code. This is my docker.compose.yml file:
...ANSWER
Answered 2021-Jun-10 at 15:10This error line
Error: listen EADDRINUSE: address already in use :::3000
and the localhost:3000 response
,
suggest that the server.js is up and running at PORT:3000.
npm start is the same as running node server.js ( i don't see it at package.json at scripts but i guess it's there).
So... try one or the other. It's like trying to access the same port with 2 different scripts.
I hope i get it right.
Actually, why you declare in 2 places new Sequelize(...) instance. Also why your config has sqlite and not mysql2? Maybe i misunderstand
QUESTION
I am using Sequelize and MySQL for database.
There are 2 tables session
and question_answer
which are N-to-M relationship, so I created a junction table session_question_answer
to connect them.
error occurs:
...ANSWER
Answered 2021-Jun-09 at 08:42I use the following for a user
/ roles
association for user management. You can change the model names and properties to suit your needs. For details about model associations, check out this section of the sequelize documentation
user.js
QUESTION
I'm trying to set up a model that connects to a VIEW in my postgres database so I can read from it but everytime I try to get data from the view I get an error that says column 'id' does not exist. Sequelize automatically creates an id integer column as the primary key when a model is created but since my views dont have an id column it throws an error. I've seen how to remove the id column using sequelize.define(). However I'm using a class based model and I dont know how to remove the attribute that way. Any ideas are greatly appreciated! Thanks!. Using sequelize version 6
I tried using removeAttr at the bottom but that didnt work.
...ANSWER
Answered 2021-Jun-08 at 20:49Can you try using:
QUESTION
Good morning, i have been trying to solve a problem but i do not have enough experience with sequelize to know if there is a solution or not so here is my problem:
I have one model named Order, another model named Service and 8 other models named "orderAttributeA", "orderAttributeB", "orderAttributeC" ....
my order model work as below:
...ANSWER
Answered 2021-Jun-08 at 13:08This is not something (dynamic reference field) supported by forestadmin out of the box.
A hacky solution for this kind of issue would be with a smart collection + smart field
For example, you could defined a smart collection OrderAttributes
defined like so
QUESTION
I am using Docker for the container service.
I have created a seed file and run it by npx sequelize-cli db:seed:all
, then error occur:
ANSWER
Answered 2021-Jun-08 at 08:56Are you running the migration within the Docker Compose container for your app, or on the Docker host machine?
From the host machine's point of view, there is no such hostname as my-redis
(it's only a thing within a Docker overlay network with that container in it).
Since you've exposed the Redis port 6379 to your host (and in fact the whole wide world), you'd use localhost:6379
on the host machine.
Community Discussions, Code Snippets contain sources that include Stack Exchange Network
Vulnerabilities
No vulnerabilities reported
Install sequelize
Support
Reuse Trending Solutions
Find, review, and download reusable Libraries, Code Snippets, Cloud APIs from over 650 million Knowledge Items
Find more librariesStay Updated
Subscribe to our newsletter for trending solutions and developer bootcamps
Share this Page