Use custom type UnixTimestamp instead of repeating boilerplate code over and over.

app/v1/beatmap.go

@@ -2,7 +2,6 @@ package v1
 
 import (
 	"database/sql"
-	"time"
 
 	"git.zxq.co/ripple/rippleapi/common"
 )
@@ -19,7 +18,7 @@ type beatmap struct {
 	HitLength          int                  `json:"hit_length"`
 	Ranked             int                  `json:"ranked"`
 	RankedStatusFrozen int                  `json:"ranked_status_frozen"`
-	LatestUpdate       time.Time `json:"latest_update"`
+	LatestUpdate       common.UnixTimestamp `json:"latest_update"`
 }
 
 type beatmapMayOrMayNotExist struct {
@@ -34,7 +33,7 @@ type beatmapMayOrMayNotExist struct {
 	HitLength          *int
 	Ranked             *int
 	RankedStatusFrozen *int
-	LatestUpdate       *time.Time
+	LatestUpdate       *common.UnixTimestamp
 }
 
 func (b *beatmapMayOrMayNotExist) toBeatmap() *beatmap {
@@ -146,21 +145,17 @@ func getSet(md common.MethodData, setID int) common.CodeMessager {
 	}
 	var r beatmapSetResponse
 	for rows.Next() {
-		var (
+		var b beatmap
-			b               beatmap
-			rawLatestUpdate int64
-		)
 		err = rows.Scan(
 			&b.BeatmapID, &b.BeatmapsetID, &b.BeatmapMD5,
 			&b.SongName, &b.AR, &b.OD, &b.Difficulty, &b.MaxCombo,
 			&b.HitLength, &b.Ranked, &b.RankedStatusFrozen,
-			&rawLatestUpdate,
+			&b.LatestUpdate,
 		)
 		if err != nil {
 			md.Err(err)
 			continue
 		}
-		b.LatestUpdate = time.Unix(rawLatestUpdate, 0)
 		r.Beatmaps = append(r.Beatmaps, b)
 	}
 	r.Code = 200
@@ -168,15 +163,12 @@ func getSet(md common.MethodData, setID int) common.CodeMessager {
 }
 
 func getBeatmap(md common.MethodData, beatmapID int) common.CodeMessager {
-	var (
+	var b beatmap
-		b               beatmap
-		rawLatestUpdate int64
-	)
 	err := md.DB.QueryRow(baseBeatmapSelect+"WHERE beatmap_id = ? LIMIT 1", beatmapID).Scan(
 		&b.BeatmapID, &b.BeatmapsetID, &b.BeatmapMD5,
 		&b.SongName, &b.AR, &b.OD, &b.Difficulty, &b.MaxCombo,
 		&b.HitLength, &b.Ranked, &b.RankedStatusFrozen,
-		&rawLatestUpdate,
+		&b.LatestUpdate,
 	)
 	switch {
 	case err == sql.ErrNoRows:
@@ -185,7 +177,6 @@ func getBeatmap(md common.MethodData, beatmapID int) common.CodeMessager {
 		md.Err(err)
 		return Err500
 	}
-	b.LatestUpdate = time.Unix(rawLatestUpdate, 0)
 	var r beatmapResponse
 	r.Code = 200
 	r.beatmap = b

app/v1/friend.go

@@ -2,7 +2,6 @@ package v1
 
 import (
 	"database/sql"
-	"time"
 
 	"git.zxq.co/ripple/rippleapi/common"
 )
@@ -87,18 +86,13 @@ ORDER BY users_relationships.id`
 func friendPuts(md common.MethodData, row *sql.Rows) (user friendData) {
 	var err error
 
-	registeredOn := int64(0)
-	latestActivity := int64(0)
 	var showcountry bool
-	err = row.Scan(&user.ID, &user.Username, &registeredOn, &user.Privileges, &latestActivity, &user.UsernameAKA, &user.Country, &showcountry)
+	err = row.Scan(&user.ID, &user.Username, &user.RegisteredOn, &user.Privileges, &user.LatestActivity, &user.UsernameAKA, &user.Country, &showcountry)
 	if err != nil {
 		md.Err(err)
 		return
 	}
 
-	user.RegisteredOn = time.Unix(registeredOn, 0)
-	user.LatestActivity = time.Unix(latestActivity, 0)
-
 	// If the user wants to stay anonymous, don't show their country.
 	// This can be overriden if we have the ReadConfidential privilege and the user we are accessing is the token owner.
 	if !(showcountry || (md.User.Privileges.HasPrivilegeReadConfidential() && user.ID == md.ID())) {

app/v1/leaderboard.go

@@ -2,7 +2,6 @@ package v1
 
 import (
 	"fmt"
-	"time"
 
 	"git.zxq.co/ripple/rippleapi/common"
 )
@@ -48,12 +47,10 @@ func LeaderboardGET(md common.MethodData) common.CodeMessager {
 	for rows.Next() {
 		var (
 			u           leaderboardUser
-			register       int64
-			latestActivity int64
 			showCountry bool
 		)
 		err := rows.Scan(
-			&u.ID, &u.Username, &register, &u.Privileges, &latestActivity,
+			&u.ID, &u.Username, &u.RegisteredOn, &u.Privileges, &u.LatestActivity,
 
 			&u.UsernameAKA, &u.Country, &showCountry,
 			&u.PlayStyle, &u.FavouriteMode,
@@ -69,8 +66,6 @@ func LeaderboardGET(md common.MethodData) common.CodeMessager {
 		if !showCountry {
 			u.Country = "XX"
 		}
-		u.RegisteredOn = time.Unix(register, 0)
-		u.LatestActivity = time.Unix(latestActivity, 0)
 		resp.Users = append(resp.Users, u)
 	}
 	resp.Code = 200

app/v1/user.go

@@ -5,7 +5,6 @@ import (
 	"database/sql"
 	"strconv"
 	"strings"
-	"time"
 
 	"git.zxq.co/ripple/ocl"
 	"git.zxq.co/ripple/rippleapi/common"
@@ -15,9 +14,9 @@ type userData struct {
 	ID             int                  `json:"id"`
 	Username       string               `json:"username"`
 	UsernameAKA    string               `json:"username_aka"`
-	RegisteredOn   time.Time `json:"registered_on"`
+	RegisteredOn   common.UnixTimestamp `json:"registered_on"`
 	Privileges     uint64               `json:"privileges"`
-	LatestActivity time.Time `json:"latest_activity"`
+	LatestActivity common.UnixTimestamp `json:"latest_activity"`
 	Country        string               `json:"country"`
 }
 
@@ -49,12 +48,11 @@ func userPuts(md common.MethodData, row *sql.Row) common.CodeMessager {
 	var err error
 	var user userPutsUserData
 
-	var (
+	var showCountry bool
-		registeredOn   int64
+	err = row.Scan(
-		latestActivity int64
+		&user.ID, &user.Username, &user.RegisteredOn, &user.Privileges, &user.LatestActivity,
-		showCountry    bool
+		&user.UsernameAKA, &user.Country, &showCountry,
 	)
-	err = row.Scan(&user.ID, &user.Username, &registeredOn, &user.Privileges, &latestActivity, &user.UsernameAKA, &user.Country, &showCountry)
 	switch {
 	case err == sql.ErrNoRows:
 		return common.SimpleResponse(404, "No such user was found!")
@@ -63,9 +61,6 @@ func userPuts(md common.MethodData, row *sql.Row) common.CodeMessager {
 		return Err500
 	}
 
-	user.RegisteredOn = time.Unix(registeredOn, 0)
-	user.LatestActivity = time.Unix(latestActivity, 0)
-
 	user.Country = genCountry(md, user.ID, showCountry, user.Country)
 
 	user.Code = 200
@@ -194,11 +189,9 @@ LIMIT 1
 		badges      string
 		country     string
 		showCountry bool
-		registeredOn   int64
-		latestActivity int64
 	)
 	err := md.DB.QueryRow(query, param).Scan(
-		&r.ID, &r.Username, &registeredOn, &r.Privileges, &latestActivity,
+		&r.ID, &r.Username, &r.RegisteredOn, &r.Privileges, &r.LatestActivity,
 
 		&r.UsernameAKA, &badges, &country, &showCountry,
 		&r.PlayStyle, &r.FavouriteMode,
@@ -230,9 +223,6 @@ LIMIT 1
 	r.Country = genCountry(md, r.ID, showCountry, country)
 	r.Badges = badgesToArray(badges)
 
-	r.RegisteredOn = time.Unix(registeredOn, 0)
-	r.LatestActivity = time.Unix(latestActivity, 0)
-
 	for _, m := range []*modeData{&r.STD, &r.Taiko, &r.CTB, &r.Mania} {
 		m.Level = ocl.GetLevelPrecise(int64(m.TotalScore))
 	}

app/v1/user_scores.go

@@ -131,7 +131,6 @@ func scoresPuts(md common.MethodData, whereClause string, params ...interface{})
 			us userScore
 			t  string
 			b  beatmapMayOrMayNotExist
-			rawLatestUpdate *int64
 		)
 		err = rows.Scan(
 			&us.ID, &us.BeatmapMD5, &us.Score,
@@ -144,7 +143,7 @@ func scoresPuts(md common.MethodData, whereClause string, params ...interface{})
 			&b.BeatmapID, &b.BeatmapsetID, &b.BeatmapMD5,
 			&b.SongName, &b.AR, &b.OD, &b.Difficulty,
 			&b.MaxCombo, &b.HitLength, &b.Ranked,
-			&b.RankedStatusFrozen, &rawLatestUpdate,
+			&b.RankedStatusFrozen, &b.LatestUpdate,
 		)
 		if err != nil {
 			md.Err(err)
@@ -156,11 +155,6 @@ func scoresPuts(md common.MethodData, whereClause string, params ...interface{})
 			md.Err(err)
 			return Err500
 		}
-		if rawLatestUpdate != nil {
-			// fml i should have used an inner join
-			xd := time.Unix(*rawLatestUpdate, 0)
-			b.LatestUpdate = &xd
-		}
 		us.Beatmap = b.toBeatmap()
 		scores = append(scores, us)
 	}

common/unix_timestamp.go

@@ -0,0 +1,55 @@
+package common
+
+import (
+	"errors"
+	"strconv"
+	"time"
+)
+
+// UnixTimestamp is simply a time.Time, but can be used to convert an
+// unix timestamp in the database into a native time.Time.
+type UnixTimestamp time.Time
+
+// Scan decodes src into an unix timestamp.
+func (u *UnixTimestamp) Scan(src interface{}) error {
+	if u == nil {
+		return errors.New("rippleapi/common: UnixTimestamp is nil")
+	}
+	switch src := src.(type) {
+	case int64:
+		*u = UnixTimestamp(time.Unix(src, 0))
+	case float64:
+		*u = UnixTimestamp(time.Unix(int64(src), 0))
+	case string:
+		return u._string(src)
+	case []byte:
+		return u._string(string(src))
+	case nil:
+		// Nothing, leave zero value on timestamp
+	default:
+		return errors.New("rippleapi/common: unhandleable type")
+	}
+	return nil
+}
+
+func (u *UnixTimestamp) _string(s string) error {
+	ts, err := strconv.Atoi(s)
+	if err != nil {
+		return err
+	}
+	*u = UnixTimestamp(time.Unix(int64(ts), 0))
+	return nil
+}
+
+// MarshalJSON -> time.Time.MarshalJSON
+func (u UnixTimestamp) MarshalJSON() ([]byte, error) {
+	return time.Time(u).MarshalJSON()
+}
+
+// UnmarshalJSON -> time.Time.UnmarshalJSON
+func (u *UnixTimestamp) UnmarshalJSON(x []byte) error {
+	t := new(time.Time)
+	err := t.UnmarshalJSON(x)
+	*u = UnixTimestamp(*t)
+	return err
+}