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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,78 @@ | ||
| package admin | ||
|
|
||
| import ( | ||
| "context" | ||
| "time" | ||
|
|
||
| "github.com/acoshift/pgsql" | ||
|
|
||
| "github.com/acoshift/acourse/internal/pkg/context/sqlctx" | ||
| "github.com/acoshift/acourse/internal/pkg/course" | ||
| ) | ||
|
|
||
| // CourseItem type | ||
| type CourseItem struct { | ||
| ID string | ||
| Title string | ||
| Image string | ||
| Type int | ||
| Price float64 | ||
| Discount float64 | ||
| URL string | ||
| CreatedAt time.Time | ||
| UpdatedAt time.Time | ||
| Option course.Option | ||
| Owner struct { | ||
| ID string | ||
| Username string | ||
| Image string | ||
| } | ||
| } | ||
|
|
||
| func GetCourses(ctx context.Context, limit, offset int64) ([]*CourseItem, error) { | ||
| rows, err := sqlctx.Query(ctx, ` | ||
| select | ||
| c.id, c.title, c.image, | ||
| c.url, c.type, c.price, c.discount, | ||
| c.created_at, c.updated_at, | ||
| opt.public, opt.enroll, opt.attend, opt.assignment, opt.discount, | ||
| u.id, u.username, u.image | ||
| from courses as c | ||
| left join course_options as opt on opt.course_id = c.id | ||
| left join users as u on u.id = c.user_id | ||
| order by c.created_at desc | ||
| limit $1 offset $2 | ||
| `, limit, offset) | ||
| if err != nil { | ||
| return nil, err | ||
| } | ||
| defer rows.Close() | ||
|
|
||
| var xs []*CourseItem | ||
| for rows.Next() { | ||
| var x CourseItem | ||
| err = rows.Scan( | ||
| &x.ID, &x.Title, &x.Image, | ||
| pgsql.NullString(&x.URL), &x.Type, &x.Price, &x.Discount, | ||
| &x.CreatedAt, &x.UpdatedAt, | ||
| &x.Option.Public, &x.Option.Enroll, &x.Option.Attend, &x.Option.Assignment, &x.Option.Discount, | ||
| &x.Owner.ID, &x.Owner.Username, &x.Owner.Image, | ||
| ) | ||
| if err != nil { | ||
| return nil, err | ||
| } | ||
| xs = append(xs, &x) | ||
| } | ||
| if err = rows.Err(); err != nil { | ||
| return nil, err | ||
| } | ||
|
|
||
| return xs, nil | ||
| } | ||
|
|
||
| func CountCourses(ctx context.Context) (cnt int64, err error) { | ||
| err = sqlctx.QueryRow(ctx, | ||
| `select count(*) from courses`, | ||
| ).Scan(&cnt) | ||
| return | ||
| } |
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