init(db): add all other persons functions
also add transaction wrapper and make some changes in persons get func
This commit is contained in:
parent
778fcf641a
commit
171ca5e52c
@ -8,6 +8,8 @@ import (
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"time"
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"github.com/H1K0/Kiraku/internal/models"
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"github.com/jackc/pgx/v5"
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"github.com/jackc/pgx/v5/pgconn"
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"github.com/jackc/pgx/v5/pgxpool"
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)
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@ -31,6 +33,24 @@ func InitDB(connString string) error {
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return nil
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}
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func transaction(ctx context.Context, handler func(pgx.Tx) (statusCode int, err error)) (statusCode int, err error) {
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tx, err := connPool.Begin(ctx)
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if err != nil {
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statusCode = http.StatusInternalServerError
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return
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}
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statusCode, err = handler(tx)
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if err != nil {
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tx.Rollback(ctx)
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return
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}
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err = tx.Commit(ctx)
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if err != nil {
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statusCode = http.StatusInternalServerError
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}
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return
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}
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//#region Users
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func UserLogin(ctx context.Context, login, password string) (user_id string, err error) {
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@ -51,12 +71,13 @@ func UserAuth(ctx context.Context, user_id string) (ok, editor bool) {
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//#region Persons
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func PersonsGet(ctx context.Context, user_id, filter, sort string, limit, offset int) (persons models.Persons, statusCode int, err error) {
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if ok, _ := UserAuth(ctx, user_id); !ok {
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err = fmt.Errorf("Unauthorized")
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ok, _ := UserAuth(ctx, user_id)
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if !ok {
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err = fmt.Errorf("unauthorized")
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statusCode = http.StatusUnauthorized
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return
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}
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queryGet := "SELECT id, name, coalesce(sort_name, '') FROM persons WHERE position($1 in lower(name))>0 OR position($1 in lower(sort_name))>0"
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queryGet := "SELECT id, name, COALESCE(sort_name, '') FROM persons WHERE POSITION($1 IN LOWER(name))>0 OR POSITION($1 IN LOWER(sort_name))>0"
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if sort != "" {
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sort_options := strings.Split(sort, ",")
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queryGet += " ORDER BY "
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@ -76,7 +97,7 @@ func PersonsGet(ctx context.Context, user_id, filter, sort string, limit, offset
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switch sort_field {
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case "name":
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case "sortName":
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sort_field = "coalesce(sort_name, name)"
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sort_field = "COALESCE(sort_name, name)"
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case "birthdate":
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case "deathdate":
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default:
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@ -98,39 +119,200 @@ func PersonsGet(ctx context.Context, user_id, filter, sort string, limit, offset
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queryGet += fmt.Sprintf(" OFFSET %d", offset)
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}
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filter = strings.ToLower(filter)
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rows, err := connPool.Query(ctx, queryGet, filter)
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if err != nil {
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statusCode = http.StatusInternalServerError
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return
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}
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count := 0
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for rows.Next() {
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var person models.PersonBrief
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err = rows.Scan(&person.ID, &person.Name, &person.SortName)
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statusCode, err = transaction(ctx, func(tx pgx.Tx) (statusCode int, err error) {
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rows, err := tx.Query(ctx, queryGet, filter)
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if err != nil {
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err = fmt.Errorf("error while fetching persons: %w", err)
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statusCode = http.StatusInternalServerError
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return
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}
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persons.Persons = append(persons.Persons, person)
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count++
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}
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err = rows.Err()
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count := 0
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for rows.Next() {
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var person models.PersonBrief
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err = rows.Scan(&person.ID, &person.Name, &person.SortName)
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if err != nil {
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statusCode = http.StatusInternalServerError
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return
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}
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persons.Persons = append(persons.Persons, person)
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count++
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}
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err = rows.Err()
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if err != nil {
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statusCode = http.StatusInternalServerError
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return
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}
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persons.Pagination.Limit = limit
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persons.Pagination.Offset = offset
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persons.Pagination.Count = count
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queryCount = fmt.Sprintf("SELECT COUNT(*) FROM (%s) tmp", queryCount)
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row := tx.QueryRow(ctx, queryCount, filter)
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err = row.Scan(&persons.Pagination.Total)
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if err != nil {
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statusCode = http.StatusInternalServerError
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}
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return
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})
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if err != nil {
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statusCode = http.StatusInternalServerError
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return
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}
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persons.Pagination.Limit = limit
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persons.Pagination.Offset = offset
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persons.Pagination.Count = count
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queryCount = fmt.Sprintf("SELECT count(*) FROM (%s) tmp", queryCount)
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row := connPool.QueryRow(ctx, queryCount, filter)
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err = row.Scan(&persons.Pagination.Total)
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if err != nil {
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statusCode = http.StatusInternalServerError
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} else {
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statusCode = http.StatusOK
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statusCode = http.StatusOK
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return
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}
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func PersonGet(ctx context.Context, user_id, person_id string) (person models.Person, statusCode int, err error) {
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ok, _ := UserAuth(ctx, user_id)
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if !ok {
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err = fmt.Errorf("unauthorized")
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statusCode = http.StatusUnauthorized
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return
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}
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row := connPool.QueryRow(ctx, "SELECT id, name, COALESCE(sort_name, ''), COALESCE(TO_CHAR(birthdate, 'YYYY-MM-DD'), ''), COALESCE(TO_CHAR(deathdate, 'YYYY-MM-DD'), ''), COALESCE(info, '') FROM persons WHERE id=$1", person_id)
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err = row.Scan(&person.ID, &person.Name, &person.SortName, &person.Birthdate, &person.Deathdate, &person.Deathdate)
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if err != nil {
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pgErr := err.(*pgconn.PgError)
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if err == pgx.ErrNoRows {
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err = fmt.Errorf("not found")
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statusCode = http.StatusNotFound
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} else if pgErr.Code == "22P02" || pgErr.Code == "22007" {
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err = fmt.Errorf("%s", pgErr.Message)
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statusCode = http.StatusBadRequest
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} else {
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statusCode = http.StatusInternalServerError
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}
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return
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}
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statusCode = http.StatusOK
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return
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}
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func PersonAdd(ctx context.Context, user_id, name, sortName, birthdate, deathdate, info string) (person models.Person, statusCode int, err error) {
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ok, editor := UserAuth(ctx, user_id)
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if !ok {
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err = fmt.Errorf("unauthorized")
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statusCode = http.StatusUnauthorized
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return
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}
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if !editor {
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err = fmt.Errorf("not allowed")
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statusCode = http.StatusForbidden
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return
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}
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row := connPool.QueryRow(
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ctx,
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"INSERT INTO persons (name, sort_name, birthdate, deathdate, info) "+
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"VALUES ($1, NULLIF($2, ''), NULLIF($3, '')::date, NULLIF($4, '')::date, NULLIF($5, '')) "+
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"RETURNING id, name, COALESCE(sort_name, ''), COALESCE(TO_CHAR(birthdate, 'YYYY-MM-DD'), ''), COALESCE(TO_CHAR(deathdate, 'YYYY-MM-DD'), ''), COALESCE(info, '')",
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name, sortName, birthdate, deathdate, info,
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)
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err = row.Scan(&person.ID, &person.Name, &person.SortName, &person.Birthdate, &person.Deathdate, &person.Info)
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if err != nil {
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pgErr := err.(*pgconn.PgError)
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if pgErr.Code == "22P02" || pgErr.Code == "22007" {
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err = fmt.Errorf("%s", pgErr.Message)
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statusCode = http.StatusBadRequest
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} else if pgErr.Code == "23505" {
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err = fmt.Errorf("a person with this name already exists")
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statusCode = http.StatusConflict
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} else {
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statusCode = http.StatusInternalServerError
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}
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return
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}
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statusCode = http.StatusOK
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return
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}
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func PersonUpdate(ctx context.Context, user_id, person_id string, values map[string]string) (person models.Person, statusCode int, err error) {
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ok, editor := UserAuth(ctx, user_id)
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if !ok {
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err = fmt.Errorf("unauthorized")
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statusCode = http.StatusUnauthorized
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return
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}
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if !editor {
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err = fmt.Errorf("not allowed")
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statusCode = http.StatusForbidden
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return
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}
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statusCode, err = transaction(ctx, func(tx pgx.Tx) (statusCode int, err error) {
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for _, field := range []string{"name", "sortName", "birthdate", "deathdate", "info"} {
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value, ok := values[field]
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if !ok {
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continue
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}
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if field == "sortName" {
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field = "sort_name"
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}
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var query string
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if field == "birthdate" || field == "deathdate" {
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query = fmt.Sprintf("UPDATE persons SET %s=NULLIF($2, '')::date WHERE id=$1", field)
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} else {
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query = fmt.Sprintf("UPDATE persons SET %s=NULLIF($2, '') WHERE id=$1", field)
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}
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var commandTag pgconn.CommandTag
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commandTag, err = tx.Exec(ctx, query, person_id, value)
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if err != nil {
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pgErr := err.(*pgconn.PgError)
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if pgErr.Code == "22P02" || pgErr.Code == "22007" {
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err = fmt.Errorf("%s", pgErr.Message)
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statusCode = http.StatusBadRequest
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} else if pgErr.Code == "23505" {
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err = fmt.Errorf("a person with this name already exists")
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statusCode = http.StatusConflict
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} else {
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statusCode = http.StatusInternalServerError
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}
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return
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}
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if commandTag.RowsAffected() == 0 {
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err = fmt.Errorf("not found")
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statusCode = http.StatusNotFound
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return
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}
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}
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row := tx.QueryRow(ctx, "SELECT id, name, COALESCE(sort_name, ''), COALESCE(TO_CHAR(birthdate, 'YYYY-MM-DD'), ''), COALESCE(TO_CHAR(deathdate, 'YYYY-MM-DD'), ''), COALESCE(info, '') FROM persons WHERE id=$1", person_id)
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err = row.Scan(&person.ID, &person.Name, &person.SortName, &person.Birthdate, &person.Deathdate, &person.Info)
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if err != nil {
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statusCode = http.StatusInternalServerError
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}
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return
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})
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if err != nil {
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return
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}
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statusCode = http.StatusOK
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return
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}
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func PersonDelete(ctx context.Context, user_id, person_id string) (statusCode int, err error) {
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ok, editor := UserAuth(ctx, user_id)
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if !ok {
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err = fmt.Errorf("unauthorized")
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statusCode = http.StatusUnauthorized
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return
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}
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if !editor {
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err = fmt.Errorf("not allowed")
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statusCode = http.StatusForbidden
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return
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}
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commandTag, err := connPool.Exec(ctx, "DELETE FROM persons WHERE id=$1", person_id)
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if err != nil {
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pgErr := err.(*pgconn.PgError)
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if pgErr.Code == "22P02" {
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err = fmt.Errorf("%s", pgErr.Message)
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statusCode = http.StatusBadRequest
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} else {
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statusCode = http.StatusInternalServerError
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}
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return
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}
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if commandTag.RowsAffected() == 0 {
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err = fmt.Errorf("not found")
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statusCode = http.StatusNotFound
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return
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}
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statusCode = http.StatusNoContent
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return
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}
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