shack/migrations/20230513004141_init.js

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import fs from 'fs';
export async function up(knex) {
const nanoidFn = await fs.promises.readFile('./migrations/nanoid.sql', 'utf8'); // from https://github.com/viascom/nanoid-postgres
await knex.raw(nanoidFn);
await knex.raw(`
CREATE FUNCTION shack_id(length smallint DEFAULT 8) RETURNS TEXT AS $$
SELECT nanoid(length, '123456789ABCDEFGHJKLMNPQRSTUVWXYZabcdefghijkmnopqrstuvwxyz');
$$ LANGUAGE SQL STABLE;
`);
await knex.schema.createTable('users', (table) => {
table.increments('id');
table.text('username', 32)
.notNullable()
.unique();
table.text('email', 32)
.notNullable()
.unique();
table.text('password')
.notNullable();
table.text('name', 32);
table.text('bio', 1000);
table.specificType('ip', 'inet');
table.datetime('created_at')
.notNullable()
.defaultTo(knex.fn.now());
});
await knex.schema.createTable('shelves', (table) => {
table.increments('id');
table.text('slug')
.notNullable();
table.integer('founder_id')
.notNullable()
.references('id')
.inTable('users');
table.datetime('created_at')
.notNullable()
.defaultTo(knex.fn.now());
});
await knex.schema.createTable('shelves_settings', (table) => {
table.increments('id');
table.integer('shelf_id')
.primary()
.references('id')
.inTable('shelves');
table.text('name');
table.text('title');
table.text('description');
table.enum('view_access', ['public', 'registered', 'private'])
.notNullable()
.defaultTo('public');
table.enum('post_access', ['registered', 'private'])
.notNullable()
.defaultTo('public');
table.boolean('is_nsfw');
});
await knex.schema.createTable('posts', (table) => {
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table.text('id', 8)
.primary()
.defaultTo(knex.raw('shack_id()'));
table.text('title')
.notNullable();
table.text('body');
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table.text('link');
table.integer('shelf_id')
.notNullable()
.references('id')
.inTable('shelves');
table.integer('user_id')
.notNullable()
.references('id')
.inTable('users');
table.datetime('created_at')
.notNullable()
.defaultTo(knex.fn.now());
});
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await knex.raw('ALTER TABLE posts ADD CONSTRAINT post_content CHECK (body IS NOT NULL OR link IS NOT NULL)');
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await knex.schema.createTable('comments', (table) => {
table.text('id', 8)
.primary()
.defaultTo(knex.raw('shack_id()'));
table.text('post_id', 8)
.notNullable()
.references('id')
.inTable('posts');
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table.integer('parent_comment_id')
.references('id')
.inTable('comments');
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table.integer('user_id')
.notNullable()
.references('id')
.inTable('users');
table.text('body');
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table.datetime('created_at')
.notNullable()
.defaultTo(knex.fn.now());
});
}
export async function down(knex) {
await knex.schema.dropTable('comments');
await knex.schema.dropTable('posts');
await knex.schema.dropTable('shelves_settings');
await knex.schema.dropTable('shelves');
await knex.schema.dropTable('users');
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await knex.raw(`
DROP FUNCTION IF EXISTS shack_id;
`);
}