added teams

internal/db/league.go

@@ -16,6 +16,7 @@ type League struct {
 	Description string `bun:"description"`
 
 	Seasons []Season `bun:"m2m:season_leagues,join:League=Season"`
+	Teams   []Team   `bun:"m2m:team_participations,join:League=Team"`
 }
 
 type SeasonLeague struct {
@@ -35,3 +36,42 @@ func GetLeague(ctx context.Context, tx bun.Tx, shortname string) (*League, error
 	}
 	return GetByField[League](tx, "short_name", shortname).Relation("Seasons").Get(ctx)
 }
+
+// GetSeasonLeague retrieves a specific season-league combination with teams
+func GetSeasonLeague(ctx context.Context, tx bun.Tx, seasonShortName, leagueShortName string) (*Season, *League, []*Team, error) {
+	if seasonShortName == "" {
+		return nil, nil, nil, errors.New("season short_name cannot be empty")
+	}
+	if leagueShortName == "" {
+		return nil, nil, nil, errors.New("league short_name cannot be empty")
+	}
+
+	// Get the season
+	season, err := GetSeason(ctx, tx, seasonShortName)
+	if err != nil {
+		return nil, nil, nil, errors.Wrap(err, "GetSeason")
+	}
+
+	// Get the league
+	league, err := GetLeague(ctx, tx, leagueShortName)
+	if err != nil {
+		return nil, nil, nil, errors.Wrap(err, "GetLeague")
+	}
+	if season == nil || league == nil || !season.HasLeague(league.ID) {
+		return nil, nil, nil, nil
+	}
+
+	// Get all teams participating in this season+league
+	var teams []*Team
+	err = tx.NewSelect().
+		Model(&teams).
+		Join("INNER JOIN team_participations AS tp ON tp.team_id = t.id").
+		Where("tp.season_id = ? AND tp.league_id = ?", season.ID, league.ID).
+		Order("t.name ASC").
+		Scan(ctx)
+	if err != nil {
+		return nil, nil, nil, errors.Wrap(err, "tx.Select teams")
+	}
+
+	return season, league, teams, nil
+}