The dark mode beta is finally here. Change your preferences any time. Stack Overflow for Teams is a private, secure spot for you and your coworkers to find and share information. Please imagine I have a array of object send from front-end, and I need to insert all the data into database, the array structure like:. You don't really need to loop here since knex So, you need something like this:. Just remember that since your insert is an async function, you have to call it with awaitso your last line should be await insert dateArray ; and that's what most probably was your main issue.
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Email Required, but never shown. The Overflow Blog. Podcast Cryptocurrency-Based Life Forms.It features both traditional node style callbacks as well as a promise interface for cleaner async flow control, a stream interfacefull featured query and schema builders, transaction support with savepointsconnection pooling and standardized responses between different query clients and dialects. The project is hosted on GitHuband has a comprehensive test suite. Knex is available for use under the MIT software license.
You can report bugs and discuss features on the GitHub issues pageadd pages to the wiki or send tweets to tgriesser. Thanks to all of the great contributions to the project. Special thanks to Taylor Otwell and his work on the Laravel Query Builderfrom which much of the builder's code and syntax was originally derived. Current Develop —. Knex can be used as an SQL query builder in both Node. JS and the browser, limited to WebSQL's constraints like the inability to drop tables or read schemas.
Composing SQL queries in the browser for execution on the server is highly discouraged, as this can be the cause of serious security vulnerabilities. The browser builds outside of WebSQL are primarily for learning purposes - for example, you can pop open the console and build queries on this page using the knex object.
View source on this page to see the browser build in-action the global knex variable.
Database Migrations with Knex
The knex module is itself a function which takes a configuration object for Knex, accepting a few parameters. The client parameter is required and determines which client adapter will be used with the library. The connection options are passed directly to the appropriate database client to create the connection, and may be either an object, a connection string, or a function returning an object:.
Note: Knex's PostgreSQL client allows you to set the initial search path for each connection automatically using an additional option "searchPath" as shown below.
Note: When you use the SQLite3 adapter, there is a filename required, not a network connection. For example:. Note: The database version can be added in knex configuration, when you use the PostgreSQL adapter to connect a non-standard database. A function can be used to determine the connection configuration dynamically.GitHub is home to over 40 million developers working together to host and review code, manage projects, and build software together.
Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community. Already on GitHub? Sign in to your account. This is kind of a noob question, I'm used to using ORMs and decided to go closer to the metal with Knex. I'm trying to do multiple inserts where the 2nd insert relies on the id of the 1st insert.
I might be missing something by not knowing how to use Promises or Transactions properly, but I'd appreciate some help on this very simple problem. It's up to you whether you want to use transactions. You'd need them in order to ensure that both inserts either succeed or fail together. If you don't need that:. You will only need the returning statement with Postgres.
My intention for this code was to seed an sqlite3 database through a migration. It was creating the user but not the group. I then tried executing this code in REPL and it worked just fine.
Is there a reason why this would work in REPL but not in a migration? Possibly I might have stumbled on a bug? Migrations are really only intended for schema modifications and not data. But Tim's right — you'll need to return knex Yup works now.Infj problems
As for seed data, you should run migrations first and then do any seeding that you need for tests. The reasoning behind this is that migrations are a universal step regardless of environment dev, staging, test, prod, etc.
I tried to do the return in an external seed. Just wondering if you've encountered this. Thanks for all the help, I appreciate it.GitHub is home to over 40 million developers working together to host and review code, manage projects, and build software together.
Have a question about this project?Knex Migrations & Seeds
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I'm facing a problem that I would like to execute multiple queries separated by ';' by a single exec, is that possible? You could try calling toString on the query and executing that, but I don't recommend it really.
Well, I will see what to do with that, basically I would like just to turn off prepared statements and keep the ability of having query string and bindings, but I don't know if it's possible, i found no documentation related to these. If you want to try the 0. Why though, would you need to execute two query statements using a single string like that?
Doesn't it sort of defeat the purpose of using the package? I can't do an insert with multiple values cause I want to know which row have been updated and which row have been created checking the affected row value. I have been playing with various query builders for node.
In the end I just coded sql builder myself - QSql Demo. It's not complete or production ready, but basically summarizes the way I'm thinking. Very cool demo, I'd been planning on adding something like that after the next release - curious, had you given the 0.
Well no, we didn' try 0. After some research I decided to replace the whole stack with something that can be maintained and where features can be added instantly.
Well, I think there is definitely a room for collaboration, however it will take some time to stabilize QSql first. But this isn't the problem. We really need a way to execute coma separated queries in one run. Okay so if anyone here is interested - I'm working on some new things in the upcoming refactor to make this possible.
Also looking at making the possibility of making the knex.This guide will explain the purpose of database migrations and show you how to use migrations to create new database tables as well as modify existing tables. Throughout the lifetime of a web application we often need to make changes to the database structure.
If your app is running across multiple environments development, testing, production, etc. Database migrations solve this problem by defining each change made to your database in a migration file, that is tracked by version control.
When you use the perk command line tool to create a new project you will notice that there are two migrations in that directory to being with:. Notice how these files each start with a long number.
This number is a timestamp representing when the migration was created. Migrations run in chronological order and this timestamp preserves that order.
These migrations define how user information is stored within Perk, but you can also create your own migrations. Perk uses Knex for all database related functionality. One of the best features of Knex is it's robust migration support. To create a new migration simply use the knex cli:. Remember that throughout the lifetime of your app there may be several migrations that all relate to the same database table, so you want your migrations names to inform other developers as to what that migration is doing.
After running this command you'll notice that a new file is created withing your migrations directory. This file will include a current timestamp as well as the name that you gave your migration.
The file will look like this:. There are two functions within your newly created migration file. The first is exports. Usually you'll be running one or more commands found in the schema builder section of the Knex documentation.
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These are things like creating database tables, adding or removing a column from a table, changing indexes, etc. The second function within your migration file is exports.
Change your preferences any time. Stack Overflow for Teams is a private, secure spot for you and your coworkers to find and share information. Please imagine I have a array of object send from front-end, and I need to insert all the data into database, the array structure like:. You don't really need to loop here since knex So, you need something like this:. Just remember that since your insert is an async function, you have to call it with awaitso your last line should be await insert dateArray ; and that's what most probably was your main issue.
The dark mode beta is finally here. Change your preferences any time. Stack Overflow for Teams is a private, secure spot for you and your coworkers to find and share information. I am new to nodejs and was trying to set up an API server, here is my first attempt.
I wanted to use mysql instead of mongo db. My problem is that 'knex 'user'. The problem in your code is that you are missing the ". That should work. Since knex. Someone has already given a solution. I am here to talk about why adding a then statement can solve this problem. In fact, thencatch statement are both ok. So selectupdateinsertetc. Learn more. Asked 5 years, 1 month ago.Yo soy yo netflix cast
Active 1 year, 10 months ago. Viewed 19k times. Stephen Brown Stephen Brown 1 1 gold badge 7 7 silver badges 20 20 bronze badges. What happens if you change the line console. It doesn't look like the current documentation, which uses something more like knex. Ok, so far so good. Now what about knex?
Are you sure that query syntax works? For example, if you remove the code from the route and add a quick line after you require knex something like : knex 'user'. And then what happens if you add a second line like knex. Also tried knex 'user'. Tried knex. Tried both It could be that knex is not connecting to the database at all, or it could be that it's failing silently. Or is it possible thats a point of failure? BTW - you can add 'debug: true, ' to your dbConfig to have the SQL syntax and parameter bindings output to the console.
That would be helpful as well. Active Oldest Votes.React native footer tab example
Does knex use some kind of lazy promises? The insert should be executed regardless of whether or not the result is handled assuming insert returns a regular promise. Knex needs a.
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