Can ask questions during live sessions

asks.go

@@ -0,0 +1,105 @@
+package main
+
+import (
+	"encoding/json"
+	"time"
+)
+
+func init() {
+	router.POST("/api/surveys/:sid/ask", apiAuthHandler(surveyAuthHandler(func(s Survey, u *User, body []byte) HTTPResponse {
+		var ask Ask
+		if err := json.Unmarshal(body, &ask); err != nil {
+			return APIErrorResponse{err: err}
+		}
+
+		a, err := s.NewAsk(u.Id, ask.Content)
+		if err != nil {
+			return APIErrorResponse{err: err}
+		}
+
+		if s.Direct != nil {
+			s.WSAdminWriteAll(WSMessage{Action: "new_ask", UserId: &u.Id, QuestionId: &a.Id, Response: ask.Content})
+		}
+
+		return formatApiResponse(a, err)
+	}), loggedUser))
+	router.GET("/api/surveys/:sid/ask", apiHandler(surveyHandler(
+		func(s Survey, _ []byte) HTTPResponse {
+			return formatApiResponse(s.GetAsks(true))
+		}), adminRestricted))
+}
+
+type Ask struct {
+	Id       int64     `json:"id"`
+	IdSurvey int64     `json:"id_survey"`
+	IdUser   int64     `json:"id_user"`
+	Date     time.Time `json:"date"`
+	Content  string    `json:"content"`
+	Answered bool      `json:"answered,omitempty"`
+}
+
+func (s *Survey) GetAsks(unansweredonly bool) (asks []Ask, err error) {
+	cmp := ""
+	if unansweredonly {
+		cmp = " AND answered = 0"
+	}
+
+	if rows, errr := DBQuery("SELECT id_ask, id_survey, id_user, date, content, answered FROM survey_asks WHERE id_survey=?"+cmp, s.Id); errr != nil {
+		return nil, errr
+	} else {
+		defer rows.Close()
+
+		for rows.Next() {
+			var a Ask
+			if err = rows.Scan(&a.Id, &a.IdSurvey, &a.IdUser, &a.Date, &a.Content, &a.Answered); err != nil {
+				return
+			}
+			asks = append(asks, a)
+		}
+		if err = rows.Err(); err != nil {
+			return
+		}
+
+		return
+	}
+}
+
+func GetAsk(id int) (a Ask, err error) {
+	err = DBQueryRow("SELECT id_ask, id_survey, id_user, date, content, answered FROM survey_asks WHERE id_ask = ?", id).Scan(&a.Id, &a.IdSurvey, &a.IdUser, &a.Date, &a.Content, &a.Answered)
+	return
+}
+
+func (s *Survey) NewAsk(id_user int64, content string) (Ask, error) {
+	if res, err := DBExec("INSERT INTO survey_asks (id_survey, id_user, date, content) VALUES (?, ?, ?, ?)", s.Id, id_user, time.Now(), content); err != nil {
+		return Ask{}, err
+	} else if aid, err := res.LastInsertId(); err != nil {
+		return Ask{}, err
+	} else {
+		return Ask{aid, s.Id, id_user, time.Now(), content, false}, nil
+	}
+}
+
+func (a *Ask) Update() error {
+	_, err := DBExec("UPDATE survey_asks SET id_survey = ?, id_user = ?, date = ?, content = ?, answered = ? WHERE id_ask = ?", a.IdSurvey, a.IdUser, a.Date, a.Content, a.Answered, a.Id)
+	return err
+}
+
+func (a *Ask) Delete() (int64, error) {
+	if res, err := DBExec("DELETE FROM survey_asks WHERE id_ask = ?", a.Id); err != nil {
+		return 0, err
+	} else if nb, err := res.RowsAffected(); err != nil {
+		return 0, err
+	} else {
+		return nb, err
+	}
+}
+
+func ClearAsks() (int64, error) {
+	if res, err := DBExec("DELETE FROM survey_asks"); err != nil {
+		return 0, err
+	} else if nb, err := res.RowsAffected(); err != nil {
+		return 0, err
+	} else {
+		return nb, err
+	}
+}