Golang data.TermRanking類代碼示例

func TestReadTermRanking(t *testing.T) {
	readRanking := new(data.TermRanking)

	testRead(t, "/taxonomy/"+term.Term+"/ranking", readRanking)

	readRanking.UpdateTime = ranking.UpdateTime
	structJSONCompare(t, ranking, readRanking)
}

func TestSelectTermRanking(t *testing.T) {
	selectedRanking := new(data.TermRanking)
	selectedRanking.Term = ranking.Term
	err := Select(selectedRanking)

	if err != nil {
		t.Error(err)
	}

	t.Log(ranking.UpdateTime.UTC())
	t.Log(selectedRanking.UpdateTime.UTC())

	selectedRanking.UpdateTime = ranking.UpdateTime

	structJSONCompare(t, ranking, selectedRanking)
}

func scanTermRanking(ranking *data.TermRanking, rows *sql.Rows) error {
	var updateTimeString string

	err := rows.Scan(
		&ranking.Term,
		&ranking.Ranking,
		&updateTimeString,
	)

	if err != nil {
		return err
	}

	// TODO: this is a hacky fix for null times
	if updateTimeString == "0000-00-00 00:00:00" {
		updateTimeString = "0001-01-01 00:00:00"
	}
	updateTime, err := time.Parse("2006-01-02 15:04:05", updateTimeString) // this assumes UTC as timezone

	if err != nil {
		log.Println("TermRanking scanner failed to parse time.")
		return err
	}

	ranking.UpdateTime = updateTime

	return nil
}

// Generic Read handler for reading single objects
func Read(w http.ResponseWriter, r *http.Request) {
	//No Auth for the moment

	w.Header().Set("Access-Control-Allow-Origin", "*")
	w.Header().Set("Access-Control-Allow-Headers", "Origin, X-Requested-With, Content-Type, Accept")

	vars := mux.Vars(r)

	var (
		val interface{} // Generic container for the read object
		err error
	)

	// Build a URI like representation of the datatype
	types := []string{vars["datatype"]}

	if childtype, ok := vars["childtype"]; ok {
		types = append(types, childtype)
	}

	// Switch based on that URI like representation and instantiate something in the generic container. Also infer the identifier from the vars and perform validation.
	switch strings.Join(types, "/") {
	case "items":
		item := new(data.Item)
		item.ID, err = strconv.ParseInt(vars["key"], 10, 64)

		val = item
	case "items/comments":
		comment := new(data.ItemComment)
		comment.ID, err = strconv.ParseInt(vars["childkey"], 10, 64)

		val = comment

	case "users":
		user := new(data.User)
		user.Username = vars["key"]

		val = user
	case "users/direction":
		direction := new(data.UserDirection)
		direction.Username = vars["key"]

		val = direction
	case "roles":
		role := new(data.Role)
		role.Title = vars["key"]

		val = role
	case "taxonomy":
		term := new(data.Term)
		term.Term = vars["key"]

		val = term
	case "taxonomy/ranking":
		ranking := new(data.TermRanking)
		ranking.Term = vars["key"]

		val = ranking
	default:
		http.NotFound(w, r)
		return
	}

	if err != nil {
		log.Println(err)
		http.Error(w, "Malformed key in URI", http.StatusBadRequest)
		return
	}

	// Perform the Select
	err = storage.Select(val)

	if err == storage.ErrZeroAffected {
		http.Error(w, "No matches for query", http.StatusNotFound)
		return
	} else if err != nil {
		log.Println(err)
		http.Error(w, "Select Database error, likely due to malformed request", http.StatusInternalServerError)
		return
	}

	// Important. Let's never send salt/hash out.
	switch v := val.(type) {
	case *data.User:
		v.Salt = ""
		v.Password = ""
	}

	w.Header().Set("Content-Type", "application/json") // Header are important when GZIP is enabled

	// Return the object we've selected from the database.
	encoder := json.NewEncoder(w)
	err = encoder.Encode(val)

	if err != nil {
		log.Println(err)
	}
}

func Insert(val interface{}) error {
	var (
		res sql.Result
		err error
	)

	now := time.Now().UTC()

	switch v := val.(type) {
	case *data.Item:
		res, err = Exec(
			"INSERT INTO Items (Type, Author, ThumbnailURI, ContentURI, UploadURI, ContentToken, HasHeading, Heading, HasGeo, Lat, Lng, Radius, Live, StartTime, StopTime) VALUES (?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?)",
			v.Type,
			v.Author,
			v.ThumbnailURI,
			v.ContentURI,
			v.UploadURI,
			v.ContentToken,
			v.HasHeading,
			v.Heading,
			v.HasGeo,
			v.Lat,
			v.Lng,
			v.Radius,
			v.Live,
			v.StartTime.UTC(),
			v.StopTime.UTC(),
		)
	case *data.ItemComment:
		res, err = Exec(
			"INSERT INTO ItemComments (ItemID, Author, Body, UpdateTime) VALUES (?, ?, ?, ?)",
			v.ItemID,
			v.Author,
			v.Body,
			now,
		)
	case *data.Term:
		// There is basically no danger with INSERT IGNORE there is nothing we would want to change if there is
		// accidental remake of a term
		res, err = Exec(
			"INSERT IGNORE INTO Terms (Term, Automated, Author, UpdateTime) VALUES (?, ?, ?, ?)",
			v.Term,
			v.Automated,
			v.Author,
			now,
		)
	case *data.TermRelationship:
		// Nothing can go wrong with INSERT IGNORE since the key is whole entry
		res, err = Exec(
			"INSERT IGNORE INTO TermRelationships (Term, ItemID) VALUES (?, ?)",
			v.Term,
			v.ItemID,
		)
	case *data.TermRanking:
		// There is basically no danger with INSERT IGNORE there is nothing we would want to change if there is
		// accidental remake of a term
		res, err = Exec(
			"INSERT IGNORE INTO TermRankings (Term, Ranking, UpdateTime) VALUES (?, ?, ?)",
			v.Term,
			v.Ranking,
			now,
		)
	case *data.Role:
		res, err = Exec(
			"INSERT INTO Roles (Title, Permissions) VALUES (?, ?)",
			v.Title,
			v.Permissions,
		)
	case *data.User:
		res, err = Exec(
			"INSERT INTO Users (Username, Password, Salt, Role, TrustLevel, CreateTime) VALUES (?, ?, ?, ?, ?, ?)",
			v.Username,
			v.Password,
			v.Salt,
			v.Role,
			v.TrustLevel,
			now,
		)
	case *data.UserDirection:
		res, err = Exec(
			"INSERT INTO UserDirections (Username, LockUsername, Command, Heading, Lat, Lng, UpdateTime) VALUES (?, ?, ?, ?, ?, ?, ?)",
			v.Username,
			v.LockUsername,
			v.Command,
			v.Heading,
			v.Lat,
			v.Lng,
			now,
		)
	default:
		return ErrUnsupportedDataType
	}

	if err != nil {
		return err
	}

	affected, err := res.RowsAffected()

	if err != nil {
//.........這裏部分代碼省略.........