101 lines
2.4 KiB
Go
101 lines
2.4 KiB
Go
package repository
|
|
|
|
import (
|
|
"context"
|
|
"git.sch9.ru/new_gate/ms-tester/internal/models"
|
|
"github.com/jmoiron/sqlx"
|
|
)
|
|
|
|
type ProblemRepository struct {
|
|
db *sqlx.DB
|
|
//logger *zap.Logger
|
|
}
|
|
|
|
func NewProblemRepository(db *sqlx.DB) *ProblemRepository {
|
|
return &ProblemRepository{
|
|
db: db,
|
|
//logger: logger,
|
|
}
|
|
}
|
|
|
|
const createProblemQuery = "INSERT INTO problems (title) VALUES (?) RETURNING id"
|
|
|
|
func (r *ProblemRepository) CreateProblem(ctx context.Context, title string) (int32, error) {
|
|
const op = "ProblemRepository.CreateProblem"
|
|
|
|
query := r.db.Rebind(createProblemQuery)
|
|
rows, err := r.db.QueryxContext(ctx, query, title)
|
|
if err != nil {
|
|
return 0, handlePgErr(err, op)
|
|
}
|
|
|
|
defer rows.Close()
|
|
var id int32
|
|
rows.Next()
|
|
err = rows.Scan(&id)
|
|
if err != nil {
|
|
return 0, handlePgErr(err, op)
|
|
}
|
|
|
|
return id, nil
|
|
}
|
|
|
|
const readProblemQuery = "SELECT * from problems WHERE id=? LIMIT 1"
|
|
|
|
func (r *ProblemRepository) ReadProblemById(ctx context.Context, id int32) (*models.Problem, error) {
|
|
const op = "ProblemRepository.ReadProblemById"
|
|
|
|
var problem models.Problem
|
|
query := r.db.Rebind(readProblemQuery)
|
|
err := r.db.GetContext(ctx, &problem, query, id)
|
|
if err != nil {
|
|
return nil, handlePgErr(err, op)
|
|
}
|
|
return &problem, nil
|
|
}
|
|
|
|
const deleteProblemQuery = "DELETE FROM problems WHERE id=?"
|
|
|
|
func (r *ProblemRepository) DeleteProblem(ctx context.Context, id int32) error {
|
|
const op = "ProblemRepository.DeleteProblem"
|
|
|
|
query := r.db.Rebind(deleteProblemQuery)
|
|
_, err := r.db.ExecContext(ctx, query, id)
|
|
if err != nil {
|
|
return handlePgErr(err, op)
|
|
}
|
|
|
|
return nil
|
|
}
|
|
|
|
const (
|
|
ListProblemsQuery = `SELECT id, title, time_limit, memory_limit, created_at, updated_at
|
|
FROM problems
|
|
LIMIT ? OFFSET ?`
|
|
CountProblemsQuery = "SELECT COUNT(*) FROM problems"
|
|
)
|
|
|
|
func (r *ProblemRepository) ListProblems(ctx context.Context, page int32, pageSize int32) ([]*models.ProblemListItem, int32, error) {
|
|
const op = "ContestRepository.ListProblems"
|
|
|
|
if pageSize > 20 || pageSize < 1 {
|
|
pageSize = 1
|
|
}
|
|
|
|
var problems []*models.ProblemListItem
|
|
query := r.db.Rebind(ListProblemsQuery)
|
|
err := r.db.SelectContext(ctx, &problems, query, pageSize, (page-1)*pageSize)
|
|
if err != nil {
|
|
return nil, 0, handlePgErr(err, op)
|
|
}
|
|
|
|
query = r.db.Rebind(CountProblemsQuery)
|
|
|
|
var count int32
|
|
err = r.db.GetContext(ctx, &count, query)
|
|
if err != nil {
|
|
return nil, 0, handlePgErr(err, op)
|
|
}
|
|
|
|
return problems, count, nil
|
|
}
|