default null dates

.gitignore

@@ -2,3 +2,4 @@
 .idea/*
 test.db
 profile.cov
+.vscode/

examples/Concurrent-Inserts.go

@@ -20,7 +20,8 @@ func ConcurrentInserts() {
 	textHandler := slog.NewTextHandler(os.Stdout, nil)
 	l := slog.New(textHandler)
 
-	MySQL.New(DSN, l, context.Background())
+	// MySQL.New(DSN, l, context.Background())
+	MySQL.NewSQLite3(DSN, l, context.Background())
 
 	type InsertPerson struct {
 		Id      int       `db:"column=id primarykey=yes table=Test"`

examples/Insert-DateDefault.go

@@ -23,7 +23,7 @@ func InsertDateDefault() {
 	l := slog.New(textHandler)
 
 	// MySQL.New(DSN, l, context.Background())
-	MySQL.New(DSN, l, context.Background())
+	MySQL.NewSQLite3(DSN, l, context.Background())
 
 	type InsertPersonNOW struct {
 		Id      int       `db:"column=id primarykey=yes table=Test"`
@@ -49,6 +49,14 @@ func InsertDateDefault() {
 		Ignored int       `db:"column=ignored omit=yes"`
 	}
 
+	type InsertPersonNULL struct {
+		Id      int       `db:"column=id primarykey=yes table=Test"`
+		Name    string    `db:"column=name"`
+		Dtadded time.Time `db:"column=dtadded readdefault=null"`
+		Status  int       `db:"column=status"`
+		Ignored int       `db:"column=ignored omit=yes"`
+	}
+
 	sqlQuery := "INSERT INTO Test(name) VALUES (X'54657374');"
 
 	// Then execute the query
@@ -78,6 +86,29 @@ func InsertDateDefault() {
 		l.With("Date Should be DEFAULT", test3.Dtadded).Info("Date")
 	}
 
+	nullEntry := InsertPersonNULL{
+		Name:    "Test",
+		Dtadded: time.Time{},
+		Status:  1,
+	}
+
+	nullInsertSQL, err6 := MySQL.DB.Insert(nullEntry)
+	if err6 != nil {
+		l.Error(err6.Error())
+	} else {
+		nullInsertedID, _, err7 := MySQL.DB.Execute(nullInsertSQL)
+		if err7 != nil {
+			l.Error(err7.Error())
+		} else {
+			test4, err8 := MySQL.QuerySingleStruct[InsertPersonNULL]("SELECT * FROM test WHERE id = ?", nullInsertedID)
+			if err8 != nil {
+				l.Error("Query error: " + err8.Error())
+			} else {
+				l.With("Date Should be NULL/zero", test4.Dtadded).Info("Date")
+			}
+		}
+	}
+
 	l.Info(fmt.Sprintf("Item with ID %d was inserted. %d rows were affected", lastInsertedID, rowsAffected))
 
 	ctx.Done()

examples/Missing-Columns.go

@@ -19,7 +19,8 @@ func MissingColumns() {
 	textHandler := slog.NewTextHandler(os.Stdout, nil)
 	l := slog.New(textHandler)
 
-	MySQL.New(DSN, l, context.Background())
+	// MySQL.New(DSN, l, context.Background())
+	MySQL.NewSQLite3(DSN, l, context.Background())
 
 	type InsertPerson struct {
 		Id      int       `db:"column=id primarykey=yes table=Test"`

examples/Save-DateDefault.go

@@ -0,0 +1,60 @@
+package examples
+
+import (
+	"context"
+	"fmt"
+	"log/slog"
+	"os"
+	"time"
+
+	"github.com/joho/godotenv"
+
+	MySQL "github.com/SpaceTent/GoStructDB/gsdb"
+)
+
+func SaveReadDefaultNull() {
+
+	godotenv.Load(".env")
+	DSN := os.Getenv("DSN")
+	textHandler := slog.NewTextHandler(os.Stdout, nil)
+	l := slog.New(textHandler)
+
+	// MySQL.New(DSN, l, context.Background())
+	MySQL.NewSQLite3(DSN, l, context.Background())
+
+	type SavePerson struct {
+		Id      int       `db:"column=id primarykey=yes table=Test"`
+		Name    string    `db:"column=name"`
+		Dtadded time.Time `db:"column=dtadded readdefault=null"`
+		Status  int       `db:"column=status"`
+	}
+
+	entry := SavePerson{
+		Name:    "Save Null",
+		Dtadded: time.Time{},
+		Status:  1,
+	}
+
+	lastInsertedID, rowsAffected, err := MySQL.DB.Save(entry, entry.Id)
+	if err != nil {
+		l.Error(err.Error())
+		return
+	}
+
+	loaded, err := MySQL.QuerySingleStruct[SavePerson]("SELECT * FROM test WHERE id = ?", lastInsertedID)
+	if err != nil {
+		l.Error("Query error: " + err.Error())
+	} else {
+		l.With("Date Should be NULL/zero", loaded.Dtadded).Info("Date")
+	}
+
+	loaded.Status = 2
+	loaded.Dtadded = time.Now()
+
+	_, rowsAffectedUpdate, err := MySQL.DB.Save(loaded, loaded.Id)
+	if err != nil {
+		l.Error(err.Error())
+	}
+
+	l.Info(fmt.Sprintf("Save insert rows: %d, save update rows: %d", rowsAffected, rowsAffectedUpdate))
+}

examples/basic-Insert.go

@@ -21,7 +21,8 @@ func BasicInsert() {
 	textHandler := slog.NewTextHandler(os.Stdout, nil)
 	l := slog.New(textHandler)
 
-	MySQL.New(DSN, l, context.Background())
+	// MySQL.New(DSN, l, context.Background())
+	MySQL.NewSQLite3(DSN, l, context.Background())
 
 	type InsertPerson struct {
 		Id      int       `db:"column=id primarykey=yes table=Test"`

examples/basic-insert-withcounter.go

@@ -19,7 +19,8 @@ func BasicInsertWithCounter() {
 	textHandler := slog.NewTextHandler(os.Stdout, nil)
 	l := slog.New(textHandler)
 
-	MySQL.New(DSN, l, context.Background())
+	// MySQL.New(DSN, l, context.Background())
+	MySQL.NewSQLite3(DSN, l, context.Background())
 
 	type InsertPerson struct {
 		Id      int       `db:"column=id primarykey=yes table=Test"`

main.go

@@ -1,8 +1,6 @@
 package main
 
-import (
-	"github.com/SpaceTent/GoStructDB/examples"
-)
+import "github.com/SpaceTent/GoStructDB/examples"
 
 func main() {
 
@@ -12,5 +10,5 @@ func main() {
 	examples.InsertDateDefault()
 	examples.MissingColumns()
 	examples.Lite3()
-
+	examples.SaveReadDefaultNull()
 }