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|
package model
import (
"database/sql"
)
type Step struct {
Text string `json:"text"`
}
func (r *Recipe) CreateSteps(tx *sql.Tx) error {
err := r.DeleteSteps(tx)
if err != nil {
return err
}
cmd := `
INSERT INTO steps
(recipe, 'index', text)
VALUES
(?, ?, ?)
`
for i, s := range r.Steps {
_, err := tx.Exec(cmd, r.Id, i, s.Text)
if err != nil {
return err
}
}
return nil
}
func (r *Recipe) ReadSteps(tx *sql.Tx) error {
cmd := `
SELECT
text
FROM
steps
WHERE
recipe = ?
ORDER BY
'index' ASC
`
rows, err := tx.Query(cmd, r.Id)
if err != nil {
return err
}
r.Steps = make([]Step, 0)
for rows.Next() {
s := Step{}
err = rows.Scan(&s.Text)
if err != nil {
return err
}
r.Steps = append(r.Steps, s)
}
return nil
}
func (r *Recipe) UpdateSteps(tx *sql.Tx) error {
err := r.DeleteSteps(tx)
if err != nil {
return err
}
return r.CreateSteps(tx)
}
func (r *Recipe) DeleteSteps(tx *sql.Tx) error {
cmd := `
DELETE FROM
steps
WHERE
recipe = ?
`
_, err := tx.Exec(cmd, r.Id)
if err != nil {
return err
}
return nil
}
|
