added seasons list

internal/db/season.go

@@ -0,0 +1,83 @@
+package db
+
+import (
+	"context"
+	"database/sql"
+
+	"github.com/pkg/errors"
+	"github.com/uptrace/bun"
+)
+
+type Season struct {
+	bun.BaseModel `bun:"table:seasons,alias:s"`
+
+	ID        int    `bun:"id,pk,autoincrement"`
+	Name      string `bun:"name,unique"`
+	ShortName string `bun:"short_name,unique"`
+}
+
+type SeasonList struct {
+	Seasons  []Season
+	Total    int
+	PageOpts PageOpts
+}
+
+func NewSeason(ctx context.Context, tx bun.Tx, name, shortname string) (*Season, error) {
+	if name == "" {
+		return nil, errors.New("name cannot be empty")
+	}
+	if shortname == "" {
+		return nil, errors.New("shortname cannot be empty")
+	}
+	season := &Season{
+		Name:      name,
+		ShortName: shortname,
+	}
+	_, err := tx.NewInsert().
+		Model(season).
+		Exec(ctx)
+	if err != nil {
+		return nil, errors.Wrap(err, "tx.NewInsert")
+	}
+	return season, nil
+}
+
+func ListSeasons(ctx context.Context, tx bun.Tx, pageOpts *PageOpts) (*SeasonList, error) {
+	if pageOpts == nil {
+		pageOpts = &PageOpts{}
+	}
+	if pageOpts.Page == 0 {
+		pageOpts.Page = 1
+	}
+	if pageOpts.PerPage == 0 {
+		pageOpts.PerPage = 10
+	}
+	if pageOpts.Order == "" {
+		pageOpts.Order = bun.OrderDesc
+	}
+	if pageOpts.OrderBy == "" {
+		pageOpts.OrderBy = "name"
+	}
+	seasons := []Season{}
+	err := tx.NewSelect().
+		Model(&seasons).
+		OrderBy(pageOpts.OrderBy, pageOpts.Order).
+		Offset(pageOpts.PerPage * (pageOpts.Page - 1)).
+		Limit(pageOpts.PerPage).
+		Scan(ctx)
+	if err != nil && err != sql.ErrNoRows {
+		return nil, errors.Wrap(err, "tx.NewSelect")
+	}
+	total, err := tx.NewSelect().
+		Model(&seasons).
+		Count(ctx)
+	if err != nil && err != sql.ErrNoRows {
+		return nil, errors.Wrap(err, "tx.NewSelect")
+	}
+	sl := &SeasonList{
+		Seasons:  seasons,
+		Total:    total,
+		PageOpts: *pageOpts,
+	}
+	return sl, nil
+}