// Function to make a fresh request to the Stack Exchange API to return questions relating to set of ID's
// Initiates parameters required to make the request.
// The returning data is then sent back to the webui handler to be parsed into the page
func GetQuestions(ctx context.Context, ids []int) (*stackongo.Questions, error) {
params := make(stackongo.Params)
params.Pagesize(100)
params.Sort("creation")
params.AddVectorized("tagged", tags)
questions, err := dataCollect.GetQuestionsByIDs(session, ids, appInfo, params)
if err != nil {
return nil, errors.New("Error collection new question by id\t" + err.Error())
}
return questions, nil
}
// Remove any questions in db that does not exist in StackOverflow
func RemoveDeletedQuestions(db *sql.DB, ctx context.Context) error {
defer UpdateTableTimes(db, ctx, "questions")
// Get questions from db
ids := []int{}
rows, err := db.Query("SELECT question_id FROM questions")
if err != nil {
return err
}
var id int
defer rows.Close()
for rows.Next() {
err := rows.Scan(&id)
if err != nil {
return err
}
ids = append(ids, id)
}
// Get the questions from StackExchange
params := make(stackongo.Params)
params.Pagesize(100)
params.Sort("creation")
questions, err := dataCollect.GetQuestionsByIDs(session, ids, appInfo, params)
if err != nil {
return err
}
// If the number of questions equal, no questions have been deleted
if len(questions.Items) == len(ids) {
return nil
}
// Find the questions not in SE
// Add to deletedQns
deletedQns := make([]int, 0, len(ids)-len(questions.Items))
for _, id := range ids {
deleted := true
for _, question := range questions.Items {
if question.Question_id == id {
deleted = false
break
}
}
if deleted {
deletedQns = append(deletedQns, id)
}
}
// Remove deletedQns from db
query := "DELETE FROM questions WHERE "
for i, id := range deletedQns {
query += "question_id=" + strconv.Itoa(id)
if i < len(deletedQns)-1 {
query += " OR "
}
}
_, err = db.Exec(query)
if err != nil {
return err
}
// Remove tags associated with deleted questions
_, err = db.Exec("DELETE FROM question_tag WHERE question_id NOT IN (SELECT questions.question_id FROM questions)")
if err != nil {
return err
}
return nil
}