"knexjs execute all migrations" Code Answer's
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move records from table to another using knex migration
Emmanuel Mahuni
on Nov 13, 2020
// modified by Emmanuel Mahuni to use async/await more readable code
exports.up = async function(knex) {
await knex.schema.createTable('table_b', t => {
t.string('col_a')
t.string('col_b')
})
await knex.schema.createTable('table_c', t => {
t.string('col_c')
t.string('col_d')
})
let rows = await knex('table_a').select('col_a', 'col_b')
await knex('table_b').insert(rows)
rows = await knex('table_a').select('col_c', 'col_d')
await knex('table_c').insert(rows)
await knex.schema.dropTableIfExists('table_a'))
};
exports.down = async function(knex) {
await knex.schema.createTable('table_a', t => {
t.string('col_a')
t.string('col_b')
t.string('col_c')
t.string('col_d')
})
let rows = await knex('table_b').select('col_a', 'col_b')
await knex('table_a').insert(rows)
rows = await knex('table_c').select('col_c', 'col_d')
await knex('table_a').insert(rows)
await knex.schema.dropTableIfExists('table_b')
await knex.schema.dropTableIfExists('table_c')
};
Source: stackoverflow.com
knex datatypes
Wicked Wasp
on Sep 09, 2020
table.increments('id')
table.string('account_name')
table.integer('age')
table.float('age')
table.decimal('balance', 8, 2)
table.boolean('is_admin')
table.date('birthday')
table.time('created_at')
table.timestamp('created_at').defaultTo(knex.fn.now())
table.json('profile')
table.jsonb('profile')
table.uuid('id').primary()
Source: devhints.io
knexjs execute all migrations
Selfish Spider
on Nov 17, 2020
$ knex migrate:make create_users_table
$ knex migrate:make create_tasks_tableSource: gist.github.com
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