Add sql functions for generating GUIDs

sql/funcs.go

@@ -251,8 +251,10 @@ var funcs = map[string]map[int]interface{}{
 
 	// Random implementation
 	"rand":                    {0: nil},
+	"guid":                    {0: nil},
 	"uuid":                    {0: nil},
 	"rand.bool":               {0: nil},
+	"rand.guid":               {0: nil},
 	"rand.uuid":               {0: nil},
 	"rand.enum":               {-1: nil},
 	"rand.time":               {0: nil, 2: nil},

util/fake/guid.go

@@ -0,0 +1,27 @@
+// Copyright © 2016 Abcum Ltd
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package fake
+
+import (
+	"github.com/abcum/surreal/util/guid"
+)
+
+func Guid() string {
+	return guid.New().String()
+}
+
+func (f *Faker) Guid() string {
+	return guid.New().String()
+}

util/fncs/fnc.go

@@ -252,10 +252,14 @@ func Run(ctx context.Context, name string, args ...interface{}) (interface{}, er
 	// Rand implementation
 	case "rand":
 		return rand(ctx, args...)
+	case "guid":
+		return randGuid(ctx, args...)
 	case "uuid":
 		return randUuid(ctx, args...)
 	case "rand.bool":
 		return randBool(ctx, args...)
+	case "rand.guid":
+		return randGuid(ctx, args...)
 	case "rand.uuid":
 		return randUuid(ctx, args...)
 	case "rand.enum":

util/fncs/rand.go

@@ -29,6 +29,10 @@ func randBool(ctx context.Context, args ...interface{}) (bool, error) {
 	return fake.Bool(), nil
 }
 
+func randGuid(ctx context.Context, args ...interface{}) (string, error) {
+	return fake.Guid(), nil
+}
+
 func randUuid(ctx context.Context, args ...interface{}) (string, error) {
 	return fake.Uuid(), nil
 }