Add history description (#98)

Closes #20

Reviewed-on: #98

backend/db.go

@@ -2,6 +2,7 @@ package main
 
 import (
 	"errors"
+	"fmt"
 	"log"
 	"math"
 	"time"
@@ -206,8 +207,9 @@ func (db *Db) CompleteAllowance(userId int, allowanceId int) error {
 
 	// Get the cost of the allowance
 	var cost int
-	err = tx.Query("select balance from allowances where id = ? and user_id = ?").
-		Bind(allowanceId, userId).ScanSingle(&cost)
+	var allowanceName string
+	err = tx.Query("select balance, name from allowances where id = ? and user_id = ?").
+		Bind(allowanceId, userId).ScanSingle(&cost, &allowanceName)
 	if err != nil {
 		return err
 	}
@@ -220,8 +222,8 @@ func (db *Db) CompleteAllowance(userId int, allowanceId int) error {
 	}
 
 	// Add a history entry
-	err = tx.Query("insert into history (user_id, timestamp, amount) values (?, ?, ?)").
-		Bind(userId, time.Now().Unix(), -cost).
+	err = tx.Query("insert into history (user_id, timestamp, amount, description) values (?, ?, ?, ?)").
+		Bind(userId, time.Now().Unix(), -cost, fmt.Sprintf("Allowance completed: %s", allowanceName)).
 		Exec()
 	if err != nil {
 		return err
@@ -420,7 +422,8 @@ func (db *Db) CompleteTask(taskId int) error {
 	defer tx.MustRollback()
 
 	var reward int
-	err = tx.Query("select reward from tasks where id = ?").Bind(taskId).ScanSingle(&reward)
+	var rewardName string
+	err = tx.Query("select reward, name from tasks where id = ?").Bind(taskId).ScanSingle(&reward, &rewardName)
 	if err != nil {
 		return err
 	}
@@ -434,8 +437,8 @@ func (db *Db) CompleteTask(taskId int) error {
 		}
 
 		// Add the history entry
-		err = tx.Query("insert into history (user_id, timestamp, amount) values (?, ?, ?)").
-			Bind(userId, time.Now().Unix(), reward).
+		err = tx.Query("insert into history (user_id, timestamp, amount, description) values (?, ?, ?, ?)").
+			Bind(userId, time.Now().Unix(), reward, fmt.Sprintf("Task completed: %s", rewardName)).
 			Exec()
 		if err != nil {
 			return err
@@ -499,8 +502,8 @@ func (db *Db) AddHistory(userId int, allowance *PostHistory) error {
 	defer tx.MustRollback()
 
 	amount := int(math.Round(allowance.Allowance * 100.0))
-	err = tx.Query("insert into history (user_id, timestamp, amount) values (?, ?, ?)").
-		Bind(userId, time.Now().Unix(), amount).
+	err = tx.Query("insert into history (user_id, timestamp, amount, description) values (?, ?, ?, ?)").
+		Bind(userId, time.Now().Unix(), amount, allowance.Description).
 		Exec()
 	if err != nil {
 		return err
@@ -512,11 +515,11 @@ func (db *Db) GetHistory(userId int) ([]History, error) {
 	history := make([]History, 0)
 	var err error
 
-	for row := range db.db.Query("select amount, `timestamp` from history where user_id = ? order by `timestamp` desc").
+	for row := range db.db.Query("select amount, `timestamp`, description from history where user_id = ? order by `timestamp` desc").
 		Bind(userId).Range(&err) {
 		allowance := History{}
 		var timestamp, amount int64
-		err = row.Scan(&amount, &timestamp)
+		err = row.Scan(&amount, &timestamp, &allowance.Description)
 		if err != nil {
 			return nil, err
 		}