101 lines
2 KiB
Go
101 lines
2 KiB
Go
package store
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import (
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"database/sql"
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"fmt"
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sq "github.com/Masterminds/squirrel"
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"git.ctrlz.es/mgdelacroix/craban/model"
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)
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var postColumns = []string{"id", "user_id", "game_id", "createdat", "body"}
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type PostStore struct {
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Conn *sql.DB
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}
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func NewPostStore(s *Store) *PostStore {
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return &PostStore{Conn: s.Conn}
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}
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func (ps *PostStore) Q() sq.StatementBuilderType {
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return sq.StatementBuilder.RunWith(ps.Conn)
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}
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func (ps *PostStore) postsFromRows(rows *sql.Rows) ([]*model.Post, error) {
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posts := []*model.Post{}
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for rows.Next() {
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var post model.Post
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err := rows.Scan(
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&post.ID,
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&post.UserID,
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&post.GameID,
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&post.CreatedAt,
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&post.Body,
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)
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if err != nil {
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return nil, err
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}
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posts = append(posts, &post)
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}
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return posts, nil
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}
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func (ps *PostStore) GetByID(id int) (*model.Post, error) {
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return ps.getPostByCondition(sq.Eq{"id": id})
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}
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func (ps *PostStore) getPostByCondition(condition sq.Eq) (*model.Post, error) {
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posts, err := ps.getPostsByCondition(condition)
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if err != nil {
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return nil, err
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}
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return posts[0], nil
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}
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func (ps *PostStore) getPostsByCondition(condition sq.Eq) ([]*model.Post, error) {
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rows, err := ps.Q().Select(postColumns...).
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From("posts").
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Where(condition).
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Query()
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if err != nil {
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return nil, fmt.Errorf("cannot get posts: %w", err)
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}
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defer rows.Close()
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posts, err := ps.postsFromRows(rows)
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if err != nil {
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return nil, fmt.Errorf("cannot get posts from rows: %w", err)
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}
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if len(posts) == 0 {
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return nil, sql.ErrNoRows
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}
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return posts, nil
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}
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func (ps *PostStore) Create(post *model.Post) (*model.Post, error) {
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query := ps.Q().Insert("posts").
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Columns(postColumns[1:]...).
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Values(post.UserID, post.GameID, post.CreatedAt, post.Body)
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res, err := query.Exec()
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if err != nil {
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return nil, fmt.Errorf("cannot insert post: %w", err)
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}
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id, err := res.LastInsertId()
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if err != nil {
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return nil, fmt.Errorf("cannot get last insert id for created post: %w", err)
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}
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return ps.GetByID(int(id))
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}
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