mobiniqow
769e76313f
- Recovery middleware (no more crash-on-panic), request metrics/monitoring store + admin API, in-memory TTL caching for read-heavy option/question/ category lookups, gzip + rate-limiting middleware, sanitized chat message encoding, and pg_dump-based database backups with an admin API. - Fix N+1 queries in the discover feed, candidate detail, and match list endpoints by batching selection/photo/user/last-message lookups into single queries instead of one-per-item loops. - Tune DB connection pooling and add HTTP server timeouts + graceful shutdown so the API degrades gracefully instead of falling over under load. - Fix a null (vs empty array) JSON response for candidates/matches without photos or interests, which crashed the web app's swipe card.
62 lines
1.8 KiB
Go
62 lines
1.8 KiB
Go
package repository
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import (
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"gorm.io/gorm"
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"dating-app/internal/models"
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)
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type MessageRepository struct {
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db *gorm.DB
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}
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func NewMessageRepository(db *gorm.DB) *MessageRepository {
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return &MessageRepository{db: db}
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}
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func (r *MessageRepository) Create(msg *models.Message) error {
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return r.db.Create(msg).Error
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}
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func (r *MessageRepository) ListByMatch(matchID uint) ([]models.Message, error) {
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var messages []models.Message
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err := r.db.Where("match_id = ?", matchID).Order("created_at asc").Find(&messages).Error
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return messages, err
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}
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// LastMessage آخرین پیام یک مچ رو برمیگردونه (برای پیشنمایش لیست گفتگوها)
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func (r *MessageRepository) LastMessage(matchID uint) (*models.Message, error) {
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var msg models.Message
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err := r.db.Where("match_id = ?", matchID).Order("created_at desc").First(&msg).Error
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if err != nil {
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return nil, err
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}
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return &msg, nil
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}
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// LastMessagesByMatchIDs آخرین پیام هر مچ رو، برای چند مچ با هم در یک کوئری
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// برمیگردونه (بهجای یک کوئری جدا بهازای هر مچ توی لیست گفتگوها). از
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// DISTINCT ON پستگرس استفاده میکنه که دقیقاً برای همین کار («آخرین ردیف هر
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// گروه») ساخته شده.
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func (r *MessageRepository) LastMessagesByMatchIDs(matchIDs []uint) (map[uint]models.Message, error) {
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result := make(map[uint]models.Message, len(matchIDs))
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if len(matchIDs) == 0 {
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return result, nil
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}
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var messages []models.Message
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err := r.db.
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Distinct("ON (match_id) *").
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Where("match_id IN ?", matchIDs).
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Order("match_id, created_at desc").
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Find(&messages).Error
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if err != nil {
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return nil, err
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}
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for _, m := range messages {
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result[m.MatchID] = m
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}
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return result, nil
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}
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