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コースの存在チェックの書き方統一 #602

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Sep 7, 2021
Merged

コースの存在チェックの書き方統一 #602

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12 changes: 7 additions & 5 deletions webapp/golang/main.go
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Original file line number Diff line number Diff line change
Expand Up @@ -910,16 +910,18 @@ func (h *handlers) SetCourseStatus(c echo.Context) error {
return echo.NewHTTPError(http.StatusBadRequest, "Invalid format.")
}

result, err := h.DB.Exec("UPDATE `courses` SET `status` = ? WHERE `id` = ?", req.Status, courseID)
if err != nil {
var count int
if err := h.DB.Get(&count, "SELECT COUNT(*) FROM `courses` WHERE `id` = ?", courseID); err != nil {
c.Logger().Error(err)
return c.NoContent(http.StatusInternalServerError)
}
if num, err := result.RowsAffected(); err != nil {
if count == 0 {
return echo.NewHTTPError(http.StatusNotFound, "No such course.")
}

if _, err := h.DB.Exec("UPDATE `courses` SET `status` = ? WHERE `id` = ?", req.Status, courseID); err != nil {
c.Logger().Error(err)
return c.NoContent(http.StatusInternalServerError)
} else if num == 0 {
return echo.NewHTTPError(http.StatusNotFound, "No such course.")
}

return c.NoContent(http.StatusOK)
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