Exemplo n.º 1
0
// RetrieveVote returns winner and loser of a voting duel according to the token
// given and deletes the associated tokens from the database
func RetrieveVote(token string) (winner, loser string, err error) {
	var otherToken string

	C := pool.Get()
	defer C.Close()

	key := fmt.Sprintf(tokenFmt, token)

	winner, err = redis.String(C.Do("HGET", key, "winner"))
	if err != nil {
		return
	}

	loser, err = redis.String(C.Do("HGET", key, "loser"))
	if err != nil {
		return
	}

	otherToken, err = redis.String(C.Do("HGET", key, "other_token"))
	if err != nil {
		return
	}

	C.Do("DEL", key, fmt.Sprintf(tokenFmt, otherToken)) // Ignoring error

	return
}
Exemplo n.º 2
0
func ExampleString() {
	c, err := dial()
	if err != nil {
		panic(err)
	}
	defer c.Close()

	c.Do("SET", "hello", "world")
	s, err := redis.String(c.Do("GET", "hello"))
	fmt.Printf("%#v\n", s)
	// Output:
	// "world"
}
Exemplo n.º 3
0
// This example implements ZPOP as described at
// http://redis.io/topics/transactions using WATCH/MULTI/EXEC and scripting.
func Example_zpop() {
	c, err := dial()
	if err != nil {
		fmt.Println(err)
		return
	}
	defer c.Close()

	// Add test data using a pipeline.

	for i, member := range []string{"red", "blue", "green"} {
		c.Send("ZADD", "zset", i, member)
	}
	if _, err := c.Do(""); err != nil {
		fmt.Println(err)
		return
	}

	// Pop using WATCH/MULTI/EXEC

	v, err := zpop(c, "zset")
	if err != nil {
		fmt.Println(err)
		return
	}
	fmt.Println(v)

	// Pop using a script.

	v, err = redis.String(zpopScript.Do(c, "zset"))
	if err != nil {
		fmt.Println(err)
		return
	}
	fmt.Println(v)

	// Output:
	// red
	// blue
}
Exemplo n.º 4
0
func TestDialURL(t *testing.T) {
	for _, d := range dialErrors {
		_, err := redis.DialURL(d.rawurl)
		if err == nil || !strings.Contains(err.Error(), d.expectedError) {
			t.Errorf("DialURL did not return expected error (expected %v to contain %s)", err, d.expectedError)
		}
	}

	checkPort := func(network, address string) (net.Conn, error) {
		if address != "localhost:6379" {
			t.Errorf("DialURL did not set port to 6379 by default (got %v)", address)
		}
		return net.Dial(network, address)
	}
	c, err := redis.DialURL("redis://localhost", redis.DialNetDial(checkPort))
	if err != nil {
		t.Error("dial error:", err)
	}
	c.Close()

	checkHost := func(network, address string) (net.Conn, error) {
		if address != "localhost:6379" {
			t.Errorf("DialURL did not set host to localhost by default (got %v)", address)
		}
		return net.Dial(network, address)
	}
	c, err = redis.DialURL("redis://:6379", redis.DialNetDial(checkHost))
	if err != nil {
		t.Error("dial error:", err)
	}
	c.Close()

	// Check that the database is set correctly
	c1, err := redis.DialURL("redis://:6379/8")
	defer c1.Close()
	if err != nil {
		t.Error("Dial error:", err)
	}
	dbSize, _ := redis.Int(c1.Do("DBSIZE"))
	if dbSize > 0 {
		t.Fatal("DB 8 has existing keys; aborting test to avoid overwriting data")
	}
	c1.Do("SET", "var", "val")

	c2, err := redis.Dial("tcp", ":6379")
	defer c2.Close()
	if err != nil {
		t.Error("dial error:", err)
	}
	_, err = c2.Do("SELECT", "8")
	if err != nil {
		t.Error(err)
	}
	got, err := redis.String(c2.Do("GET", "var"))
	if err != nil {
		t.Error(err)
	}
	if got != "val" {
		t.Error("DialURL did not correctly set the db.")
	}
	_, err = c2.Do("DEL", "var")
}