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Syntax error when create enum type using knex.raw()


By : user2174767
Date : October 17 2020, 08:10 AM
it helps some times Probably postgresql doesn't allow to use value bindings for enum values. You need to interpolate those values to the SQL string like:
code :
return knex.raw(`create type "channel_nme_c" as enum ('${ChannelEnum.FACEBOOK}', '${ChannelEnum.GOOGLE}', '${ChannelEnum.INSTAGRAM}')`);


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Alter table modify enum in Knex js for Postgresql gives error


By : Feterzon
Date : March 29 2020, 07:55 AM
Any of those help Alter column does not work for enum types in knex 0.13.0.
Also enums are implemented as check constraints, so to change it you need to recreate the.
code :
exports.up = function(knex, Promise) {
  return knex.schema.raw(`
    ALTER TABLE "car"
    DROP CONSTRAINT "car_fuel_type_check",
    ADD CONSTRAINT "car_fuel_type_check" 
    CHECK (fuel_type IN ('HYBRID', 'ELECTRIC', 'PETROL', 'DIESEL'))
  `);
};

exports.down = function(knex, Promise) { ... };

Syntax error in CREATE FUNCTION statement in psql using knex.js


By : user2978970
Date : March 29 2020, 07:55 AM
will help you As @Belayer pointed out you need the semi-colons and you're missing $$ wrapping your function definition, and the language specification:
code :
CREATE FUNCTION maxV(val1 numeric, val2 numeric) RETURNS numeric AS $$
BEGIN
  IF (val1 > val2) THEN
    RETURN val1;
  ELSE
    RETURN val2;
  END IF;
  RETURN NULL;
END; 
$$
LANGUAGE plpgsql;

How do I set a default value using enum type in column Mysql using Knex.js?


By : user3219362
Date : March 29 2020, 07:55 AM
To fix the issue you can do I am using AdonisJS to make a backend application. In migrations, specifically in models, we have the option of creating models, but I can't use a default value in enun type. After reading the Knex.js documentation, I couldn't find a way to put this default value in enum type (table.enu) in SGDB Mysql. Could anyone help? , Did you try defaultTo() :
defaultTo — column.defaultTo(value)
code :
table.enum('role', ['one', 'two', 'three']).defaultTo('two')

PUT Request Does Not Run Knex Update Syntax And Does Not Throw Any Error, Keeps Loading In POSTMAN. (Knex.js , PostgreSQ


By : oolong32
Date : March 29 2020, 07:55 AM
will help you ,
I made some syntax errors.
code :
app.put('/update', (req, res) => {
    // console.log(req.body)
    const { id, name, year, house, mobile, email, occupation, gender} = req.body
    db.select('*')
        .from('unity_gate')
        .where('id', '=', id)
        .update({name: name, year: year, house: house, mobile: mobile, occupation: occupation,
            gender: gender, email: email})
        .then(data => res.status(200).json('Success'))
        .catch(err => console.log('Error', err));
})

knex migration creat type for enum thows type already exists


By : user3677587
Date : March 29 2020, 07:55 AM
Does that help Looks like there is a bug in knex which causes create type query to be added twice when altering columns like that.
https://runkit.com/embed/xqtl8p2knhi8
code :
const Knex = require('knex');

const knex = Knex({
  client: 'pg',
});

knex.schema.alterTable('appointments', table => {
    table.enu('type', ['video', 'physical'], { useNative: true, enumName: 'request_type' }).alter();
}).toSQL()

/*
  Creates SQL:

0: Object {bindings: [], sql: "create type \"request_type\" as enum ('video', 'physical')"}
1: Object {bindings: [], sql: "create type \"request_type\" as enum ('video', 'physical')"}
2: Object {bindings: [], sql: "alter table \"appointments\" alter column \"type\" drop default"}
3: Object {bindings: [], sql: "alter table \"appointments\" alter column \"type\" drop not null"}
4: Object {bindings: [], …}
*/
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