added checks for sql null types

cmd/main.go

@@ -1,13 +1,19 @@
 package main
 
 import (
+	"database/sql"
 	"fmt"
+	"time"
 
 	"code.jakeyoungdev.com/go/lazy"
 )
 
 func main() {
 
+	type Test struct {
+		Timer    sql.NullTime `db:"timer"`
+		TestTime time.Time    `db:"times"`
+	}
 	// res, err := lazy.RandomStruct(lazy.StructConfig{
 	// 	Query:    "insert into test (one, two) values (?, ?), (?, ?)",
 	// 	Example:  test{},
@@ -16,7 +22,7 @@ func main() {
 
 	x, y := lazy.RandomGenerate(lazy.Config{
 		Query:    "select * from table",
-		Example:  lazy.Test{},
+		Example:  Test{},
 		RowCount: 1,
 	})
 	if y != nil {

lazy.go

@@ -13,10 +13,6 @@ import (
 	"github.com/jmoiron/sqlx"
 )
 
-type Test struct {
-	Timer sql.NullTime `db:"timer"`
-}
-
 const (
 	DB_TAG    = "db"   //tag used to parse sql fields in example struct
 	LAZY_TAG  = "lazy" //tag label for KEY_VALUE
@@ -95,67 +91,9 @@ func RandomGenerate(m Config) (*Mock, error) {
 				continue
 			}
 
-			//attempt other types
-			//generate random values
 			nv := kindToRandom(field)
 			if nv == nil {
-				//move this logic to nullKindToRandom function
-				nullType := false
-				switch field.Type {
-				case reflect.TypeOf(sql.NullTime{}):
-					var temp sql.NullTime
-					if !isNull() {
-						temp.Valid = true
-						temp.Time = time.Now()
-					}
-					rows[y] = append(rows[y], temp)
-					nullType = true
-				case reflect.TypeOf(sql.NullInt16{}):
-					if isNull() {
-						rows[y] = append(rows[y], nil)
-					} else {
-						rows[y] = append(rows[y], rand.Int())
-					}
-					nullType = true
-				case reflect.TypeOf(sql.NullInt32{}):
-					if isNull() {
-						rows[y] = append(rows[y], nil)
-					} else {
-						rows[y] = append(rows[y], rand.Int32())
-					}
-					nullType = true
-				case reflect.TypeOf(sql.NullInt64{}):
-					if isNull() {
-						rows[y] = append(rows[y], nil)
-					} else {
-						rows[y] = append(rows[y], rand.Int64())
-					}
-					nullType = true
-				case reflect.TypeOf(sql.NullBool{}):
-					if isNull() {
-						rows[y] = append(rows[y], nil)
-					} else {
-						rows[y] = append(rows[y], rand.Int()%2 == 0)
-					}
-					nullType = true
-				case reflect.TypeOf(sql.NullFloat64{}):
-					if isNull() {
-						rows[y] = append(rows[y], nil)
-					} else {
-						rows[y] = append(rows[y], rand.Float64())
-					}
-					nullType = true
-				case reflect.TypeOf(sql.NullString{}):
-					if isNull() {
-						rows[y] = append(rows[y], nil)
-					} else {
-						rows[y] = append(rows[y], fmt.Sprintf("random %d", rand.Int()))
-					}
-					nullType = true
-				}
-				if !nullType {
-					return nil, fmt.Errorf("could not match type: %s", retType.Name())
-				}
+				return nil, fmt.Errorf("could not match type: %s", retType.Name())
 			}
 
 			rows[y] = append(rows[y], nv)
@@ -172,6 +110,72 @@ func RandomGenerate(m Config) (*Mock, error) {
 
 // converts basic reflect Kind's to psuedo-random data, slices are given a random amount of entries
 func kindToRandom(field reflect.StructField) any {
+	//this isn't ideal, but since the sql types are structs they were being filled in a weird
+	//manner. For now we check those types first, clean this up later.
+	switch field.Type {
+	case reflect.TypeOf(sql.NullTime{}):
+		fmt.Println("found nulltime")
+		var temp sql.NullTime
+		if !isNull() {
+			temp.Valid = true
+			temp.Time = time.Now()
+		}
+		return temp
+	case reflect.TypeOf(sql.NullInt16{}):
+		var temp sql.NullInt16
+		if isNull() {
+			temp.Valid = false
+		} else {
+			temp.Valid = true
+			temp.Int16 = int16(rand.Int())
+		}
+		return temp
+	case reflect.TypeOf(sql.NullInt32{}):
+		var temp sql.NullInt32
+		if isNull() {
+			temp.Valid = false
+		} else {
+			temp.Valid = true
+			temp.Int32 = rand.Int32()
+		}
+		return temp
+	case reflect.TypeOf(sql.NullInt64{}):
+		var temp sql.NullInt64
+		if isNull() {
+			temp.Valid = false
+		} else {
+			temp.Valid = true
+			temp.Int64 = rand.Int64()
+		}
+		return temp
+	case reflect.TypeOf(sql.NullBool{}):
+		var temp sql.NullBool
+		if isNull() {
+			temp.Valid = false
+		} else {
+			temp.Valid = true
+			temp.Bool = (rand.Int()%2 == 0)
+		}
+		return temp
+	case reflect.TypeOf(sql.NullFloat64{}):
+		var temp sql.NullFloat64
+		if isNull() {
+			temp.Valid = false
+		} else {
+			temp.Valid = true
+			temp.Float64 = rand.Float64()
+		}
+		return temp
+	case reflect.TypeOf(sql.NullString{}):
+		var temp sql.NullString
+		if isNull() {
+			temp.Valid = false
+		} else {
+			temp.Valid = true
+			temp.String = fmt.Sprintf("random %d", rand.Int())
+		}
+		return temp
+	}
 	kind := field.Type.Kind()
 	switch kind {
 	case reflect.Int:
@@ -187,8 +191,10 @@ func kindToRandom(field reflect.StructField) any {
 	case reflect.String:
 		return fmt.Sprintf("random %d", rand.Int())
 	case reflect.Bool:
+		fmt.Println("THIS TWO")
 		return rand.Int()%2 == 0
 	case reflect.TypeOf(time.Time{}).Kind():
+		fmt.Println("THIS?")
 		return time.Now()
 	case reflect.Array:
 		underlying := field.Type.Elem().Kind()