Removing Headers() method from Schema. Updating example to deal with …

…Schema fields. #16

examples/validate/main.go

@@ -19,8 +19,11 @@ func main() {
 		log.Fatal(err)
 	}
 
-	// Printing headers.
-	log.Printf("Headers: %v\n", capitalSchema.Headers())
+	// Printing schema fields names.
+	log.Println("Fields:")
+	for i, f := range capitalSchema.Fields {
+		log.Printf("%d - %s\n", i, f.Name)
+	}
 
 	// Working with schema fields.
 	if capitalSchema.HasField("Capital") {

schema/schema.go

@@ -101,16 +101,6 @@ type Schema struct {
 	MissingValues         []string    `json:"missingValues,omitempty"`
 }
 
-// Headers returns the headers of the tabular data described
-// by the schema.
-func (s *Schema) Headers() []string {
-	var h []string
-	for i := range s.Fields {
-		h = append(h, s.Fields[i].Name)
-	}
-	return h
-}
-
 // GetField fetches the index and field referenced by the name argument.
 func (s *Schema) GetField(name string) (*Field, int) {
 	for i := range s.Fields {

schema/schema_test.go

@@ -227,20 +227,6 @@ func TestRead_Error(t *testing.T) {
 	}
 }
 
-func TestHeaders(t *testing.T) {
-	// Empty schema, empty headers.
-	s := Schema{}
-	if len(s.Headers()) > 0 {
-		t.Errorf("want:0 got:%d", len(s.Headers()))
-	}
-
-	s1 := Schema{Fields: []Field{{Name: "f1"}, {Name: "f2"}}}
-	expected := []string{"f1", "f2"}
-	if !reflect.DeepEqual(s1.Headers(), expected) {
-		t.Errorf("want:%v got:%v", expected, s1.Headers())
-	}
-}
-
 func TestSchema_Decode(t *testing.T) {
 	t.Run("NoImplicitCast", func(t *testing.T) {
 		t1 := struct {