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user.xo.go
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user.xo.go
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package xo_wxstat
// Code generated by xo. DO NOT EDIT.
import (
"context"
)
// User represents a row from 'user'.
type User struct {
UserID int `json:"user_id"` // user_id
Name string `json:"name"` // name
// xo fields
_exists, _deleted bool
}
// Exists returns true when the User exists in the database.
func (u *User) Exists() bool {
return u._exists
}
// Deleted returns true when the User has been marked for deletion from
// the database.
func (u *User) Deleted() bool {
return u._deleted
}
// Insert inserts the User to the database.
func (u *User) Insert(ctx context.Context, db DB) error {
switch {
case u._exists: // already exists
return logerror(&ErrInsertFailed{ErrAlreadyExists})
case u._deleted: // deleted
return logerror(&ErrInsertFailed{ErrMarkedForDeletion})
}
// insert (manual)
const sqlstr = `INSERT INTO user (` +
`user_id, name` +
`) VALUES (` +
`$1, $2` +
`)`
// run
logf(sqlstr, u.UserID, u.Name)
if _, err := db.ExecContext(ctx, sqlstr, u.UserID, u.Name); err != nil {
return logerror(err)
}
// set exists
u._exists = true
return nil
}
// Update updates a User in the database.
func (u *User) Update(ctx context.Context, db DB) error {
switch {
case !u._exists: // doesn't exist
return logerror(&ErrUpdateFailed{ErrDoesNotExist})
case u._deleted: // deleted
return logerror(&ErrUpdateFailed{ErrMarkedForDeletion})
}
// update with primary key
const sqlstr = `UPDATE user SET ` +
`name = $1 ` +
`WHERE user_id = $2`
// run
logf(sqlstr, u.Name, u.UserID)
if _, err := db.ExecContext(ctx, sqlstr, u.Name, u.UserID); err != nil {
return logerror(err)
}
return nil
}
// Save saves the User to the database.
func (u *User) Save(ctx context.Context, db DB) error {
if u.Exists() {
return u.Update(ctx, db)
}
return u.Insert(ctx, db)
}
// Upsert performs an upsert for User.
func (u *User) Upsert(ctx context.Context, db DB) error {
switch {
case u._deleted: // deleted
return logerror(&ErrUpsertFailed{ErrMarkedForDeletion})
}
// upsert
const sqlstr = `INSERT INTO user (` +
`user_id, name` +
`) VALUES (` +
`$1, $2` +
`)` +
` ON CONFLICT (user_id) DO ` +
`UPDATE SET ` +
`name = EXCLUDED.name `
// run
logf(sqlstr, u.UserID, u.Name)
if _, err := db.ExecContext(ctx, sqlstr, u.UserID, u.Name); err != nil {
return err
}
// set exists
u._exists = true
return nil
}
// Delete deletes the User from the database.
func (u *User) Delete(ctx context.Context, db DB) error {
switch {
case !u._exists: // doesn't exist
return nil
case u._deleted: // deleted
return nil
}
// delete with single primary key
const sqlstr = `DELETE FROM user ` +
`WHERE user_id = $1`
// run
logf(sqlstr, u.UserID)
if _, err := db.ExecContext(ctx, sqlstr, u.UserID); err != nil {
return logerror(err)
}
// set deleted
u._deleted = true
return nil
}
// UserByName retrieves a row from 'user' as a User.
//
// Generated from index 'idx_user_name'.
func UserByName(ctx context.Context, db DB, name string) ([]*User, error) {
// query
const sqlstr = `SELECT ` +
`user_id, name ` +
`FROM user ` +
`WHERE name = $1`
// run
logf(sqlstr, name)
rows, err := db.QueryContext(ctx, sqlstr, name)
if err != nil {
return nil, logerror(err)
}
defer rows.Close()
// process
var res []*User
for rows.Next() {
u := User{
_exists: true,
}
// scan
if err := rows.Scan(&u.UserID, &u.Name); err != nil {
return nil, logerror(err)
}
res = append(res, &u)
}
if err := rows.Err(); err != nil {
return nil, logerror(err)
}
return res, nil
}
// UserByUserID retrieves a row from 'user' as a User.
//
// Generated from index 'user_user_id_pkey'.
func UserByUserID(ctx context.Context, db DB, userID int) (*User, error) {
// query
const sqlstr = `SELECT ` +
`user_id, name ` +
`FROM user ` +
`WHERE user_id = $1`
// run
logf(sqlstr, userID)
u := User{
_exists: true,
}
if err := db.QueryRowContext(ctx, sqlstr, userID).Scan(&u.UserID, &u.Name); err != nil {
return nil, logerror(err)
}
return &u, nil
}