exports.up = function (knex) {
    return knex.schema.createTable('memberships', function (table) {
        table.increments('membership_id').primary()
        table.integer('user_id').notNullable() // From
        table.integer('grouping_id').notNullable() // To
        table.string('membership_type', 128).notNullable() // Don't over normalize
        table.boolean('can_edit').notNullable()
        table.boolean('is_active').notNullable()
    })
}

exports.down = function (knex) {
    return knex.schema.dropTable('memberships')
}