Merge pull request #27 from Hades32/patch-1

fix example to actually work

Author: swilly22

README.md

@@ -26,73 +26,84 @@ The complete `redisgraph-go` API is documented on [GoDoc](https://godoc.org/gith
 package main
 
 import (
-    "fmt"
-    "github.com/gomodule/redigo/redis"
-    rg "github.com/redislabs/redisgraph-go"
+	"fmt"
+	"os"
+
+	"github.com/gomodule/redigo/redis"
+	rg "github.com/redislabs/redisgraph-go"
 )
 
 func main() {
-    conn, _ := redis.Dial("tcp", "0.0.0.0:6379")
-    defer conn.Close()
-
-    graph := rg.GraphNew("social", conn)
-
-    john := rg.Node{
-        Label: "person",
-        Properties: map[string]interface{}{
-            "name":   "John Doe",
-            "age":    33,
-            "gender": "male",
-            "status": "single",
-        },
-    }
-    graph.AddNode(&john)
-
-    japan := rg.Node{
-        Label: "country",
-        Properties: map[string]interface{}{
-            "name": "Japan",
-        },
-    }
-    graph.AddNode(&japan)
-
-    edge := rg.Edge{
-        Source:      &john,
-        Relation:    "visited",
-        Destination: &japan,
-    }
-    graph.AddEdge(&edge)
-
-    graph.Commit()
-
-    query := `MATCH (p:person)-[v:visited]->(c:country)
+	conn, _ := redis.Dial("tcp", "127.0.0.1:6379")
+	defer conn.Close()
+
+	graph := rg.GraphNew("social", conn)
+
+	graph.Delete()
+
+	john := rg.Node{
+		Label: "person",
+		Properties: map[string]interface{}{
+			"name":   "John Doe",
+			"age":    33,
+			"gender": "male",
+			"status": "single",
+		},
+	}
+	graph.AddNode(&john)
+
+	japan := rg.Node{
+		Label: "country",
+		Properties: map[string]interface{}{
+			"name": "Japan",
+		},
+	}
+	graph.AddNode(&japan)
+
+	edge := rg.Edge{
+		Source:      &john,
+		Relation:    "visited",
+		Destination: &japan,
+	}
+	graph.AddEdge(&edge)
+
+	graph.Commit()
+
+	query := `MATCH (p:person)-[v:visited]->(c:country)
            RETURN p.name, p.age, c.name`
 
-    // result is a QueryResult struct containing the query's generated records and statistics.
-    result, _ := graph.Query(query)
-
-    // Pretty-print the full result set as a table.
-    result.PrettyPrint()
-
-    // Iterate over each individual Record in the result.
-    for result.Next() { // Next returns true until the iterator is depleted.
-        // Get the current Record.
-        r := result.Record()
-
-        // Entries in the Record can be accessed by index or key.
-        p_name := r.GetByIndex(0)
-        fmt.Printf("\nName: %s\n", p_name)
-        p_age, _ := r.Get("p.age")
-        fmt.Printf("\nAge: %d\n", p_age)
-    }
-
-    // Path matching example.
-    query = "MATCH p = (:Person)-[:Visited]->(:Country) RETURN p"
-    result, _ = graph.Query(query)
-    res.Next()
-    r := res.Record()
-    p, ok := r.GetByIndex(0).(Path)
-    fmt.Printf("%s", p)
+	// result is a QueryResult struct containing the query's generated records and statistics.
+	result, _ := graph.Query(query)
+
+	// Pretty-print the full result set as a table.
+	result.PrettyPrint()
+
+	// Iterate over each individual Record in the result.
+	fmt.Println("Visited countries by person:")
+	for result.Next() { // Next returns true until the iterator is depleted.
+		// Get the current Record.
+		r := result.Record()
+
+		// Entries in the Record can be accessed by index or key.
+		pName := r.GetByIndex(0)
+		fmt.Printf("\nName: %s\n", pName)
+		pAge, _ := r.Get("p.age")
+		fmt.Printf("\nAge: %d\n", pAge)
+	}
+
+	// Path matching example.
+	query = "MATCH p = (:person)-[:visited]->(:country) RETURN p"
+	result, err := graph.Query(query)
+	if err != nil {
+		fmt.Println(err)
+		os.Exit(1)
+	}
+	fmt.Println("Pathes of persons visiting countries:")
+	for result.Next() {
+		r := result.Record()
+		p, ok := r.GetByIndex(0).(rg.Path)
+		fmt.Printf("%s %v\n", p, ok)
+	}
 }
 ```