fix: model gen issues

templates/project/database/database.go.tpl

@@ -1,8 +1,44 @@
 package database
 
 import (
+	"context"
+	"database/sql"
 	"embed"
+	"fmt"
+
+	"github.com/go-jet/jet/v2/qrm"
 )
 
 //go:embed migrations/*
 var MigrationFS embed.FS
+
+type CtxDB struct{}
+
+func FromContext(ctx context.Context, db *sql.DB) qrm.DB {
+	if tx, ok := ctx.Value(CtxDB{}).(*sql.Tx); ok {
+		return tx
+	}
+	return db
+}
+
+func TruncateAllTables(ctx context.Context, db *sql.DB, tableName ...string) error {
+	for _, name := range tableName {
+		sql := fmt.Sprintf("TRUNCATE TABLE %s RESTART IDENTITY", name)
+		if _, err := db.ExecContext(ctx, sql); err != nil {
+			return err
+		}
+	}
+	return nil
+}
+
+func WrapLike(v string) string {
+	return "%" + v + "%"
+}
+
+func WrapLikeLeft(v string) string {
+	return "%" + v
+}
+
+func WrapLikeRight(v string) string {
+	return "%" + v
+}

templates/project/database/fields/common.go.tpl

@@ -0,0 +1,32 @@
+package fields
+
+import (
+	"database/sql/driver"
+	"encoding/json"
+	"errors"
+
+	"github.com/samber/lo"
+)
+
+// implement sql.Scanner interface
+type field struct{}
+
+func (x *field) Scan(value interface{}) (err error) {
+	switch v := value.(type) {
+	case string:
+		return json.Unmarshal([]byte(v), &x)
+	case []byte:
+		return json.Unmarshal(v, &x)
+	case *string:
+		return json.Unmarshal([]byte(*v), &x)
+	}
+	return errors.New("Unknown type for ")
+}
+
+func (x field) Value() (driver.Value, error) {
+	return json.Marshal(x)
+}
+
+func (x field) MustValue() driver.Value {
+	return lo.Must(json.Marshal(x))
+}

templates/project/pkg/pg/db.go.tpl

@@ -1,40 +0,0 @@
-package db
-
-import (
-	"context"
-	"database/sql"
-	"fmt"
-
-	"github.com/go-jet/jet/v2/qrm"
-)
-
-const CtxDB = "__db__tx:"
-
-func FromContext(ctx context.Context, db *sql.DB) qrm.DB {
-	if tx, ok := ctx.Value(CtxDB).(*sql.Tx); ok {
-		return tx
-	}
-	return db
-}
-
-func TruncateAllTables(ctx context.Context, db *sql.DB, tableName ...string) error {
-	for _, name := range tableName {
-		sql := fmt.Sprintf("TRUNCATE TABLE %s RESTART IDENTITY", name)
-		if _, err := db.ExecContext(ctx, sql); err != nil {
-			return err
-		}
-	}
-	return nil
-}
-
-func WrapLike(v string) string {
-	return "%" + v + "%"
-}
-
-func WrapLikeLeft(v string) string {
-	return "%" + v
-}
-
-func WrapLikeRight(v string) string {
-	return "%" + v
-}