Remove comments from
Kotlin code.

package com.example.orders

import java.util.UUID

/**
 * Repository for the orders table.
 */
class OrderRepository(private val db: Database) {

    // Find by id
    fun findById(id: UUID): Order? {
        // Validate
        require(id.toString().isNotBlank()) // not blank
        val sql = "SELECT * FROM orders WHERE id = '${id}'" // template
        return db.query(sql)
    }

    /* Count rows */
    fun count(): Int = db.scalar("SELECT COUNT(*) FROM orders") // single result
}

package com.example.orders

import java.util.UUID

class OrderRepository(private val db: Database) {

    fun findById(id: UUID): Order? {
        require(id.toString().isNotBlank())
        val sql = "SELECT * FROM orders WHERE id = '${id}'"
        return db.query(sql)
    }

    fun count(): Int = db.scalar("SELECT COUNT(*) FROM orders")
}