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|
package model
import (
"database/sql"
"encoding/json"
"errors"
"fmt"
)
type Recipe struct {
Id string `json:"id"`
Title string `json:"title"`
Portions string `json:"portions"`
Url string `json:"url"`
Notes string `json:"notes"`
Created string `json:"created"`
LastChanged string `json:"last_changed"`
Steps []Step `json:"steps"`
}
func (r Recipe) String() string {
b, _ := json.MarshalIndent(r, "", " ")
return string(b)
}
func (r *Recipe) Create(tx *sql.Tx) error {
cmd := `
INSERT INTO recipes
(title, portions, url, notes, created, last_changed)
VALUES
(?, ?, ?, ?, ?, ?)
`
result, err := tx.Exec(cmd, r.Title, r.Portions, r.Url, r.Notes, r.Created,
r.LastChanged)
if err != nil {
return err
}
id, err := result.LastInsertId()
if err != nil {
return err
}
r.Id = fmt.Sprint(id)
err = r.CreateSteps(tx)
if err != nil {
return err
}
return nil
}
func (r *Recipe) Read(tx *sql.Tx) error {
cmd := `
SELECT id, title, portions, url, notes, created, last_changed
FROM recipes
WHERE id = ?
`
rows, err := tx.Query(cmd, r.Id)
if err != nil {
return err
}
defer rows.Close()
if !rows.Next() {
return sql.ErrNoRows
}
err = rows.Scan(
&r.Id,
&r.Title,
&r.Portions,
&r.Url,
&r.Notes,
&r.Created,
&r.LastChanged,
)
if err != nil {
return err
}
err = r.ReadSteps(tx)
if err != nil {
return err
}
return nil
}
func (r *Recipe) Update(tx *sql.Tx) error {
err := r.UpdateSteps(tx)
if err != nil {
return err
}
query := `UPDATE
recipes
SET
title = ?,
portions = ?,
url = ?,
notes = ?,
last_changed = ?
WHERE
id = ?`
res, err := tx.Exec(query, r.Title, r.Portions, r.Url, r.Notes,
r.LastChanged, r.Id)
if err != nil {
return err
}
affected, err := res.RowsAffected()
if err != nil {
return err
}
if affected != 1 {
return fmt.Errorf("Recipe update affected %d rows instead of 1", affected)
}
return nil
}
func (r *Recipe) Delete(tx *sql.Tx) error {
err := r.DeleteSteps(tx)
if err != nil {
return err
}
query := `
DELETE FROM
recipes
WHERE
id = ?
`
result, err := tx.Exec(query, r.Id)
if err != nil {
return err
}
rows, err := result.RowsAffected()
if rows != 1 {
return errors.New("Recipe deletion did not affect exactly one row")
}
return nil
}
func RecipeTestData() []Recipe {
return []Recipe{
{
Id: "1",
Title: "Pancakes",
Portions: "4",
Url: "https://example.org",
Notes: "Very fluffy",
Created: "",
LastChanged: "",
Steps: []Step{
{Text: "Stir the dough"},
{Text: "Heat up pan"},
{Text: "Make pancakes!"},
},
},
{
Id: "2",
Title: "Burger",
Portions: "2",
Url: "https://xengineering.eu/git/ceres",
Notes: "Delicious!",
Created: "",
LastChanged: "",
Steps: []Step{},
},
}
}
|
