knex.js

so I've been playing around with knex lately, however I found myself on a situation where I don't know what to do anymore. so I have this query: knex.raw("INSERT INTO tablename (`col1`, `col2`, `col3`) VALUES (?, ?, ?) ON DUPLICATE KEY UPDATE col2 = VALUES(`col2`)", [ ['val1', 'hello', 'world'], ['val2', 'ohayo', 'minasan'], ]); And for some reasons It throws me an error Expected 2 bindings, saw 3 . I tried making it: knex.raw("INSERT INTO tablename (`col1`, `col2`, `col3`) VALUES (?, ?, ?) ON DUPLICATE KEY UPDATE col2 = VALUES(`col2`)", ['val1', 'hello', 'world'], ['val2', 'ohayo', 'minasan']

I have a column in postgres database with type date . It is a column like birthday, which is just a date and does not need to have a time part. When fetching this column with knex, the result is a javascript Date object. It is presumably doing new Date(row.birthday) , and this is the result that is sent to the client. The problem now is that the value that the client receives is in the standard ISO 8601 format with the time part and the Z . When the client tries to create a new Date object from this string, the client may have an erroneous date value based on where the client is located. For

I am trying to run my first migration which creates a single table in a heroku postgres database. When I try to run knex migrate:latest --env development I receive the error Error: Unable to acquire a connection . Things I've tried: adding ?ssl=true to the end of my connection string stored in process.env.LISTINGS_DB_URL as I'm aware this is sometimes a requirement to connect with heroku setting the env variable PGSSLMODE=require I also stumbled across this article where someone has commented that knex will not accept keys based on environment. However, I'm attempting to follow along with this

i am using knexjs i insert data in the format YYYY-MM-DD HH:mm:ss e.g 2017-07-14 15:00:00 and after saving when the data is fetched the datetime column values are returned as javasript Date object. i want to return those object in the format YYYY-MM-DD HH:mm:ss but it returning in the format YYYY-MM-DDTHH:mm:ss.000Z e.g 2017-06-23T06:44:44.000Z . i am returning them by iterating and converting them manually. i was wondering if there is another way to do it like in mysql driver or knexjs configuration. currently my knexjs configuration is this. var connection = require('knex')({ client: 'mysql'

I use Knex.js to communicate to Postgres database. I have rows in a table with a column named 'state' which represents a US state. How can I retrieve all unique values from this column? You are probably looking for knex.distinct + knex.pluck combo. knex .distinct() .from('tablename') .pluck('state') .then(states => { console.log(states) }) 来源： https://stackoverflow.com/questions/47263583/how-can-i-retrieve-unique-values-from-a-column-with-knex-js

I'm, in the process of learning BookshelfJS/KnexJS (switching from SequelizeJS), and I'm running into an issue with importing data into multiple tables that were created via the migrations feature within KnexJS. There's 4 tables: servers operating_systems applications applications_servers With the following constraints: servers . operating_system_id references operating_systems . id applications_servers . server_id references servers . id applications_servers . application_id references applications . id The tables get created just fine when I run knex migrate:latest --env development servers

I'm having some trouble understanding how the promises in Knex.js work (uses Bluebird.js for promises). I'm trying to do something pretty simple, execute different insert statements one after another in order, but I haven't been able to get it to work. Here's the code I have so far, which is meant to execute an insert on the authentication_type table, then an insert on the user_table, and then an insert on the category table. // Import database connection var knex = require('./db-connection.js'); // Add a row to authentication_type table so that user's can be created function add

`let add_query = ".andWhere('company_name', 'like','%marker%')"; knex('franchisee').where('franchisee_name', 'like', '%jackmarker%')${add_query} .then((resp) => { console.log("resp >>",resp) })` Hear i want to execute like query using knex npm in node js. I take variable add_query using this variable want to make knex query dynamically. Like this query- `knex('franchisee').where('franchisee_name', 'like','%jackmarker%').andWhere('company_name', 'like','%marker%') .then((resp) => { console.log("resp >>",resp) })` You can add parts of queries like this: const getResults = (options) => { let