/
author.xo.go
192 lines (153 loc) · 3.46 KB
/
author.xo.go
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// Package models contains the types for schema 'booktest'.
package models
// Code generated by xo. DO NOT EDIT.
import (
"errors"
)
// Author represents a row from 'booktest.authors'.
type Author struct {
AuthorID int `json:"author_id"` // author_id
Name string `json:"name"` // name
// xo fields
_exists, _deleted bool
}
// Exists determines if the Author exists in the database.
func (a *Author) Exists() bool {
return a._exists
}
// Deleted provides information if the Author has been deleted from the database.
func (a *Author) Deleted() bool {
return a._deleted
}
// Insert inserts the Author to the database.
func (a *Author) Insert(db XODB) error {
var err error
// if already exist, bail
if a._exists {
return errors.New("insert failed: already exists")
}
// sql insert query, primary key provided by autoincrement
const sqlstr = `INSERT INTO booktest.authors (` +
`name` +
`) VALUES (` +
`?` +
`)`
// run query
XOLog(sqlstr, a.Name)
res, err := db.Exec(sqlstr, a.Name)
if err != nil {
return err
}
// retrieve id
id, err := res.LastInsertId()
if err != nil {
return err
}
// set primary key and existence
a.AuthorID = int(id)
a._exists = true
return nil
}
// Update updates the Author in the database.
func (a *Author) Update(db XODB) error {
var err error
// if doesn't exist, bail
if !a._exists {
return errors.New("update failed: does not exist")
}
// if deleted, bail
if a._deleted {
return errors.New("update failed: marked for deletion")
}
// sql query
const sqlstr = `UPDATE booktest.authors SET ` +
`name = ?` +
` WHERE author_id = ?`
// run query
XOLog(sqlstr, a.Name, a.AuthorID)
_, err = db.Exec(sqlstr, a.Name, a.AuthorID)
return err
}
// Save saves the Author to the database.
func (a *Author) Save(db XODB) error {
if a.Exists() {
return a.Update(db)
}
return a.Insert(db)
}
// Delete deletes the Author from the database.
func (a *Author) Delete(db XODB) error {
var err error
// if doesn't exist, bail
if !a._exists {
return nil
}
// if deleted, bail
if a._deleted {
return nil
}
// sql query
const sqlstr = `DELETE FROM booktest.authors WHERE author_id = ?`
// run query
XOLog(sqlstr, a.AuthorID)
_, err = db.Exec(sqlstr, a.AuthorID)
if err != nil {
return err
}
// set deleted
a._deleted = true
return nil
}
// AuthorByAuthorID retrieves a row from 'booktest.authors' as a Author.
//
// Generated from index 'authors_author_id_pkey'.
func AuthorByAuthorID(db XODB, authorID int) (*Author, error) {
var err error
// sql query
const sqlstr = `SELECT ` +
`author_id, name ` +
`FROM booktest.authors ` +
`WHERE author_id = ?`
// run query
XOLog(sqlstr, authorID)
a := Author{
_exists: true,
}
err = db.QueryRow(sqlstr, authorID).Scan(&a.AuthorID, &a.Name)
if err != nil {
return nil, err
}
return &a, nil
}
// AuthorsByName retrieves a row from 'booktest.authors' as a Author.
//
// Generated from index 'authors_name_idx'.
func AuthorsByName(db XODB, name string) ([]*Author, error) {
var err error
// sql query
const sqlstr = `SELECT ` +
`author_id, name ` +
`FROM booktest.authors ` +
`WHERE name = ?`
// run query
XOLog(sqlstr, name)
q, err := db.Query(sqlstr, name)
if err != nil {
return nil, err
}
defer q.Close()
// load results
res := []*Author{}
for q.Next() {
a := Author{
_exists: true,
}
// scan
err = q.Scan(&a.AuthorID, &a.Name)
if err != nil {
return nil, err
}
res = append(res, &a)
}
return res, nil
}