Knex - aizatto.com

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Knex
​https://knexjs.org/​
CLI
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yarn run knex migrate:make $NAME
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yarn run knex migrate:latest
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yarn run knex migrate:rollback
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Convenience Scripts
Update your package.json:
package.json
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{
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  "scripts": {
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    "latest": "yarn run knex migrate:latest",
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    "rollback": "yarn run knex migrate:rollback"
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  },
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}
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Migrations
Naming
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yarn run knex migrate:make $verb_table
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Examples:
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yarn run knex migrate:make createTable_users
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yarn run knex migrate:make alterTable_users_add_createdBy
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Sticks to the knex function names createTable and alterTable
Avoid an "init" file.
Avoid an "init" file.
For example, do not have a: 20190424135724_init.js
Instead just do: 20190424135724_create_entries.js
This explains what the file does.
Tables should be plural
Fields should be in camelCase
Follows JavaScript Style Guides for local variables
Exception relational id, for example: entryID
Also see Engineering Code > Naming​
Promises:
20190424104046_createTable_users.js
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exports.up = function(knex, Promise) {
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  return knex.schema
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    .createTable('users', table => {
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      table
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        .uuid('uuid')
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        .primary();
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      table
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        .datetime('createdAt')
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        .defaultTo(knex.fn.now())
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        .index();
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      table
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        .datetime('updatedAt')
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        .defaultTo(knex.fn.now())
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        .index();
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      table
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        .string('name')
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        .collate('utf8mb4_unicode_ci')
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        .defaultTo('')
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        .notNullable();
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      table
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        .string('email')
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        .collate('utf8mb4_unicode_ci')
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        .unique()
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        .defaultTo('')
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        .notNullable();
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    })
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};
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​
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exports.down = function(knex, Promise) {
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  return knex.schema
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    .dropTable('users');
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};
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Hapi
Koa
Last modified 3yr ago
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