56 lines
1.1 KiB
Go
56 lines
1.1 KiB
Go
package entgo
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import (
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"errors"
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"fmt"
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"time"
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"entgo.io/ent/dialect/sql"
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)
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type entClientInterface interface {
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Close() error
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}
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type EntClient[T entClientInterface] struct {
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db T
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drv *sql.Driver
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}
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func NewEntClient[T entClientInterface](db T, drv *sql.Driver) *EntClient[T] {
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return &EntClient[T]{
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db: db,
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drv: drv,
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}
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}
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func (c *EntClient[T]) Client() T {
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return c.db
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}
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func (c *EntClient[T]) Driver() *sql.Driver {
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return c.drv
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}
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func (c *EntClient[T]) Close() {
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_ = c.db.Close()
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}
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// CreateDriver 创建数据库驱动
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func CreateDriver(driverName, dsn string, maxIdleConnections, maxOpenConnections int, connMaxLifetime time.Duration) (*sql.Driver, error) {
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drv, err := sql.Open(driverName, dsn)
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if err != nil {
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return nil, errors.New(fmt.Sprintf("failed opening connection to db: %v", err))
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}
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db := drv.DB()
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// 连接池中最多保留的空闲连接数量
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db.SetMaxIdleConns(maxIdleConnections)
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// 连接池在同一时间打开连接的最大数量
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db.SetMaxOpenConns(maxOpenConnections)
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// 连接可重用的最大时间长度
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db.SetConnMaxLifetime(connMaxLifetime)
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return drv, nil
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}
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