51 lines
1.0 KiB
Go
51 lines
1.0 KiB
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 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（只调用一次）
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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 获取全局 client
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func New() *Client {
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if defaultClient == nil {
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panic("db not initialized, call db.Init(pool) first")
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}
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return defaultClient
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}
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func (c *Client) Exec(ctx context.Context, sql string, args ...any) (pgconn.CommandTag, error) {
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if c.tx != nil {
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return c.tx.Exec(ctx, sql, args...)
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}
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return c.pool.Exec(ctx, sql, args...)
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}
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func (c *Client) Query(ctx context.Context, sql string, args ...any) (pgx.Rows, error) {
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if c.tx != nil {
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return c.tx.Query(ctx, sql, args...)
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}
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return c.pool.Query(ctx, sql, args...)
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}
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func (c *Client) QueryRow(ctx context.Context, sql string, args ...any) pgx.Row {
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if c.tx != nil {
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return c.tx.QueryRow(ctx, sql, args...)
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}
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return c.pool.QueryRow(ctx, sql, args...)
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}
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