43 lines
765 B
Go
43 lines
765 B
Go
package db
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import (
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"context"
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"github.com/jackc/pgx/v5"
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"github.com/jackc/pgx/v5/pgconn"
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"github.com/jackc/pgx/v5/pgxpool"
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)
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var defaultClient *Client
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type Executor interface {
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Exec(ctx context.Context, sql string, args ...any) (pgconn.CommandTag, error)
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Query(ctx context.Context, sql string, args ...any) (pgx.Rows, error)
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QueryRow(ctx context.Context, sql string, args ...any) pgx.Row
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}
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type Client struct {
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pool *pgxpool.Pool
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tx pgx.Tx
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}
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// Init 初始化
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func Init(pool *pgxpool.Pool) {
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defaultClient = &Client{pool: pool}
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}
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// New 创建会话
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func New() *Client {
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return &Client{
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pool: defaultClient.pool,
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}
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}
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// 内部获取执行器（关键）
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func (c *Client) exec() Executor {
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if c.tx != nil {
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return c.tx
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}
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return c.pool
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}
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