wip/knex: new WIP cheatsheet

fastify.md

@@ -189,6 +189,16 @@ fastify.register(
 ```
 {: data-line="3"}
 
+#### route.js
+
+```js
+module.exports = (fastify, options, next) => {
+  fastify.get('/', ···)
+  next()
+}
+```
+
+
 See: [Register](https://github.com/fastify/fastify/blob/master/docs/Getting-Started.md#register)
 
 ### Multiple

wip/knex.md

@@ -0,0 +1,308 @@
+---
+title: Knex
+category: Hidden
+layout: 2017/sheet
+---
+
+## Getting started
+{: .-three-column}
+
+### Create table
+
+```js
+knex.schema.createTable('accounts', (table) => {
+  table.increments('id')
+  table.string('account_name')
+  table.integer('user_id').unsigned().references('users.id')
+})
+.then(() => {
+})
+```
+
+### Select
+
+```js
+knex('users')
+  .where({ email: 'hello@example.com' })
+  .then(rows => {
+  })
+```
+
+## Connect
+{: .-three-column}
+
+### Libraries
+
+| `pg` | PostgreSQL |
+| `mysql` | MySQL or MariaDB |
+| `sqlite3` | Sqlite3 |
+| `mssql` | MSSQL |
+
+Install any of these packages along with `knex`.
+
+See: [Node.js installation](http://knexjs.org/#Installation-node)
+
+### Connect via host
+
+```js
+var knex = require('knex')({
+  client: 'mysql',
+  connection: {
+    host: '127.0.0.1',
+    user: 'your_database_user',
+    password: 'your_database_password',
+    database: 'myapp_test'
+  },
+  pool: { min: 0, max: 7 }
+})
+```
+{: data-line="2,3"}
+
+See: [Initializing the library](http://knexjs.org/#Installation-client)
+
+### Connect via URL
+
+```js
+var pg = require('knex')({
+  client: 'pg',
+  connection: process.env.DATABASE_URL,
+  searchPath: 'knex,public',
+  pool: { min: 0, max: 7 }
+})
+```
+{: data-line="2,3"}
+
+### Connect via Sqlite
+
+```js
+var knex = require('knex')({
+  client: 'sqlite3',
+  connection: { filename: './mydb.sqlite' }
+})
+```
+{: data-line="2,3"}
+
+## Select
+
+### Where
+
+```js
+knex
+  .from('books')
+  .select('title', 'author', 'year')
+```
+
+#### Where
+
+```js
+  .where('title', 'Hello')
+  .where({ title: 'Hello' })
+  .whereIn('id', [1, 2, 3])
+  .whereNot(···)
+```
+
+#### Where conditions
+
+```js
+  .whereNull('updated_at')
+  .whereNotNull(···)
+```
+
+```js
+  .whereExists('updated_at')
+  .whereNotExists(···)
+```
+
+```js
+  .whereBetween('votes', [1, 100])
+  .whereNotBetween(···)
+```
+
+```js
+  .whereRaw('id = ?', [1])
+```
+
+#### Where grouping
+
+```js
+  .where(function () {
+    this
+      .where('id', 1)
+      .orWhere('id', '>', 10)
+  })
+```
+
+### Join
+
+```js
+knex('users')
+```
+
+#### Basic join
+
+```js
+  .join('contacts', 'users.id', '=', 'contacts.id')
+  .join('contacts', {'users.id': 'contacts.id'})
+```
+
+#### Strings
+
+```js
+  .join('accounts', 'accounts.type', '=', knex.raw('?', ['admin']))
+```
+
+#### Directions
+
+```js
+  .leftJoin(···)
+  .leftOuterJoin(···)
+  .rightJoin(···)
+  .rightOuterJoin(···)
+  .outerJoin(···)
+  .fullOuterJoin(···)
+  .crossJoin(···)
+```
+
+#### Raw
+
+```js
+  .joinRaw('natural full join table1')
+```
+
+
+#### Grouping
+
+```js
+  .join('accounts', function () {
+    this
+      .on('accounts.id', '=', 'users.account_id')
+      .orOn('accounts.owner_id', '=', 'users.id')
+
+      .onIn('accounts.id', [1, 2, 3, 5, 8])
+      .onNotIn(···)
+
+      .onNull('accounts.email')
+      .onNotNull(···)
+
+      .onExists(function () {
+        this.select(···)
+      })
+      .onNotExists(···)
+  })
+```
+
+### Others
+
+```js
+knex('users')
+  .distinct()
+```
+
+#### Group
+
+```js
+  .groupBy('count')
+  .groupByRaw('year WITH ROLLUP')
+```
+
+#### Order
+```js
+  .orderBy('name', 'desc')
+  .orderByRaw('name DESC')
+```
+
+#### Offset/limit
+
+```js
+  .offset(10)
+  .limit(20)
+```
+
+#### Having
+
+```js
+  .having('count', '>', 100)
+  .havingIn('count', [1, 100])
+```
+
+#### Union
+
+```js
+  .union(function() {
+    this.select(···)
+  })
+  .unionAll(···)
+```
+
+### Etc
+
+```js
+knex('users')
+  .pluck('id')
+  .then(ids => { ··· })
+```
+```js
+knex('users')
+  .first()
+  .then(user => { ··· })
+```
+
+#### Booleans
+
+```js
+  .count('active')
+  .count('active as is_active')
+```
+
+#### Numbers
+
+```js
+  .min('age')
+  .max('age')
+  .sum('age')
+  .sumDistinct('age')
+  .avg('age')
+```
+
+## Schema
+
+### Create table
+
+```js
+knex.schema.createTable('accounts', (table) => {
+  table.increments('id')
+  table.string('account_name')
+  table.integer('user_id').unsigned().references('users.id')
+})
+.then(() => {
+})
+```
+
+## Migrations
+
+### Setting up
+
+#### Creates knexfile.js
+
+```
+./node_modules/.bin/knex init
+```
+
+#### Create a migration
+
+```
+knex migrate:make migration_name
+```
+
+#### Run migrations
+
+```
+knex migrate:latest
+knex migrate:latest --env production
+```
+
+#### Rollback
+
+```
+knex migrate:rollback
+```