79 lines
1.7 KiB
Go
79 lines
1.7 KiB
Go
package models
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import (
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"database/sql"
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"errors"
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"time"
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)
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type Snippet struct {
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ID int
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Title string
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Content string
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Created time.Time
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Expires time.Time
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}
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type SnippetModelInterface interface {
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Insert(title string, content string, expires int) (int, error)
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Get(id int) (*Snippet, error)
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Latest() ([]*Snippet, error)
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}
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type SnippetModel struct {
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DB *sql.DB
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}
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func (m *SnippetModel) Insert(title string, content string, expires int) (int, error) {
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stmt := `INSERT INTO snippets (title, content, created, expires)
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VALUES (?, ?, UTC_TIMESTAMP(), DATE_ADD(UTC_TIMESTAMP(), INTERVAL ? DAY))`
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result, err := m.DB.Exec(stmt, title, content, expires)
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if err != nil {
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return 0, err
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}
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id, err := result.LastInsertId()
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if err != nil {
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return 0, err
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}
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return int(id), nil
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}
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func (m *SnippetModel) Get(id int) (*Snippet, error) {
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s := &Snippet{}
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stmt := `SELECT id, title, content, created, expires FROM snippets
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WHERE expires > UTC_TIMESTAMP() AND id = ?`
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err := m.DB.QueryRow(stmt, id).Scan(&s.ID, &s.Title, &s.Content, &s.Created, &s.Expires)
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if err != nil {
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if errors.Is(err, sql.ErrNoRows) {
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return nil, ErrNoRecord
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} else {
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return nil, err
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}
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}
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return s, nil
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}
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func (m *SnippetModel) Latest() ([]*Snippet, error) {
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stmt := `SELECT id, title, content, created, expires FROM snippets
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WHERE expires > UTC_TIMESTAMP() ORDER BY id DESC LIMIT 10`
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rows, err := m.DB.Query(stmt)
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if err != nil {
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return nil, err
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}
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defer rows.Close()
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snippets := []*Snippet{}
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for rows.Next() {
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s := &Snippet{}
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err = rows.Scan(&s.ID, &s.Title, &s.Content, &s.Created, &s.Expires)
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if err != nil {
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return nil, err
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}
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snippets = append(snippets, s)
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}
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if err = rows.Err(); err != nil {
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return nil, err
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}
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return snippets, nil
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}
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