mirror of
https://github.com/wailsapp/wails.git
synced 2025-05-05 05:39:45 +08:00
e316cd0719
* plugin handler and lifecycle * rebase * remove reflect s * remove Config and NewPlugin from plugin template * Remove plugin manager, generation of plugin interface * implement http handlers for services remove log trim path prefix wails/services * update plugine example * Misc updates * Ported plugins to services, rewritten example * Added fileserver * Update OnStartup and use a context for the application * Rename PathPrefix to Route. Create docs. * Use service config copy. Add Name to Service Options. Improve service generation. * Use service config copy. Add Name to Service Options. Improve service generation. Update README * Remove rogue db * Update changelog.md --------- Co-authored-by: Lea O'Anthony <lea.anthony@gmail.com>
128 lines
2.7 KiB
Go
128 lines
2.7 KiB
Go
package sqlite
|
|
|
|
import (
|
|
"context"
|
|
"database/sql"
|
|
"errors"
|
|
|
|
"github.com/wailsapp/wails/v3/pkg/application"
|
|
_ "modernc.org/sqlite"
|
|
)
|
|
|
|
// ---------------- Service Setup ----------------
|
|
// This is the main Service struct. It can be named anything you like.
|
|
|
|
type Config struct {
|
|
DBFile string
|
|
}
|
|
|
|
type Service struct {
|
|
config *Config
|
|
conn *sql.DB
|
|
}
|
|
|
|
func New(config *Config) *Service {
|
|
return &Service{
|
|
config: config,
|
|
}
|
|
}
|
|
|
|
// OnShutdown is called when the app is shutting down
|
|
// You can use this to clean up any resources you have allocated
|
|
func (s *Service) OnShutdown() error {
|
|
if s.conn != nil {
|
|
return s.conn.Close()
|
|
}
|
|
return nil
|
|
}
|
|
|
|
// Name returns the name of the plugin.
|
|
// You should use the go module format e.g. github.com/myuser/myplugin
|
|
func (s *Service) Name() string {
|
|
return "github.com/wailsapp/wails/v3/plugins/sqlite"
|
|
}
|
|
|
|
// OnStartup is called when the app is starting up. You can use this to
|
|
// initialise any resources you need.
|
|
func (s *Service) OnStartup(ctx context.Context, options application.ServiceOptions) error {
|
|
if s.config.DBFile == "" {
|
|
return errors.New(`no database file specified. Please set DBFile in the config to either a filename or use ":memory:" to use an in-memory database`)
|
|
}
|
|
db, err := s.Open(s.config.DBFile)
|
|
if err != nil {
|
|
return err
|
|
}
|
|
_ = db
|
|
|
|
return nil
|
|
}
|
|
|
|
func (s *Service) Open(dbPath string) (string, error) {
|
|
var err error
|
|
s.conn, err = sql.Open("sqlite", dbPath)
|
|
if err != nil {
|
|
return "", err
|
|
}
|
|
return "Database connection opened", nil
|
|
}
|
|
|
|
func (s *Service) Execute(query string, args ...any) error {
|
|
if s.conn == nil {
|
|
return errors.New("no open database connection")
|
|
}
|
|
|
|
_, err := s.conn.Exec(query, args...)
|
|
if err != nil {
|
|
return err
|
|
}
|
|
return nil
|
|
}
|
|
|
|
func (s *Service) Select(query string, args ...any) ([]map[string]any, error) {
|
|
if s.conn == nil {
|
|
return nil, errors.New("no open database connection")
|
|
}
|
|
|
|
rows, err := s.conn.Query(query, args...)
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
defer rows.Close()
|
|
|
|
columns, err := rows.Columns()
|
|
var results []map[string]any
|
|
for rows.Next() {
|
|
values := make([]any, len(columns))
|
|
pointers := make([]any, len(columns))
|
|
|
|
for i := range values {
|
|
pointers[i] = &values[i]
|
|
}
|
|
|
|
if err := rows.Scan(pointers...); err != nil {
|
|
return nil, err
|
|
}
|
|
|
|
row := make(map[string]any, len(columns))
|
|
for i, column := range columns {
|
|
row[column] = values[i]
|
|
}
|
|
results = append(results, row)
|
|
}
|
|
|
|
return results, nil
|
|
}
|
|
|
|
func (s *Service) Close() (string, error) {
|
|
if s.conn == nil {
|
|
return "", errors.New("no open database connection")
|
|
}
|
|
|
|
err := s.conn.Close()
|
|
if err != nil {
|
|
return "", err
|
|
}
|
|
s.conn = nil
|
|
return "Database connection closed", nil
|
|
}
|