siimee/backend/db/migrations/20210524105357_create_initial_tables.js

exports.up = function(knex) {
    return knex.schema
        .createTable('users', function(table) {
            table.increments('user_id').primary()
            table.string('user_name', 32).notNullable()
            table.string('user_email', 90).notNullable()
            table.timestamps(false, true) // Precision to the second
        })
        .createTable('accounts', function(table) {
            table.increments('account_id').primary()
            table.integer('user_id').notNullable()
            table.timestamps(false, true) // Precision to the second
        })
        .createTable('logins', function(table) {
            table.increments('login_id').primary()
            table.integer('account_id').notNullable()
            table.string('login_email', 90).notNullable()
            table.string('login_password', 128).notNullable()
            table.timestamps(false, true) // Precision to the second
        })
        .createTable('profiles', function(table) {
            table.increments('profile_id').primary()
            table.integer('account_id').notNullable()
            table.string('profile_name', 128).notNullable()
            table.json('profile_data').notNullable()
            table.timestamps(false, true) // Precision to the second
        })
        .createTable('groupings', function(table) {
            table.increments('grouping_id').primary()
            table.string('grouping_name', 128).notNullable()
            table.string('grouping_type', 128).notNullable() // Don't over normalize
            table.timestamps(false, true) // Precision to the second
        })
        .createTable('memberships', function(table) {
            table.increments('membership_id').primary()
            table.integer('account_id').notNullable() // From
            table.integer('group_id').notNullable() // To
            table.string('membership_type', 128).notNullable() // Don't over normalize
            table.string('membership_role', 128).notNullable() // Don't over normalize
        })
        .createTable('chats', function(table) {
            table.increments('chat_id').primary()
            table.integer('membership_id').notNullable()
            table.timestamps(false, true) // Precision to the second
        })
        .createTable('messages', function(table) {
            table.increments('message_id').primary()
            table.integer('chat_id').notNullable()
            table.integer('message_account_id').notNullable()
            table.string('message', 255).notNullable()
        })
}

exports.down = function(knex) {
    return knex.schema
        .dropTable('users')
        .dropTable('accounts')
        .dropTable('logins')
        .dropTable('profiles')
        .dropTable('memberships')
        .dropTable('groupings')
        .dropTable('chats')
        .dropTable('messages')
}