Remove Table field from Cols, use GORM conventions

gencols.go

@@ -13,6 +13,7 @@ import (
 	"path/filepath"
 	"regexp"
 	"strings"
+	"unicode"
 )
 
 // fieldInfo holds information about a struct field.
@@ -24,12 +25,29 @@ type fieldInfo struct {
 // structInfo holds information about a parsed Go struct.
 type structInfo struct {
 	Name       string      // struct name
-	Table      string      // table name from TableName const
+	Table      string      // table name (derived from struct name using GORM convention)
 	TableConst string      // constant name (e.g., "TableNamePsAccess")
 	Fields     []fieldInfo // list of fields
 	FilePath   string      // source file path
 }
 
+// toSnakeCase converts a CamelCase string to snake_case.
+// E.g., "PsProductShop" -> "ps_product_shop"
+func toSnakeCase(s string) string {
+	var result strings.Builder
+	for i, r := range s {
+		if unicode.IsUpper(r) {
+			if i > 0 {
+				result.WriteRune('_')
+			}
+			result.WriteRune(unicode.ToLower(r))
+		} else {
+			result.WriteRune(r)
+		}
+	}
+	return result.String()
+}
+
 // parseGormColumn extracts the column name value from a gorm tag string.
 // The tag is expected to be in the format "column:name;otherTag" or similar.
 // Returns the column name if found, empty string otherwise.
@@ -134,6 +152,11 @@ func parseModelFile(path string) (*structInfo, error) {
 		return nil, nil
 	}
 
+	// If no TableName constant was found, derive table name from struct name using GORM convention.
+	if si.Table == "" {
+		si.Table = toSnakeCase(si.Name)
+	}
+
 	return &si, nil
 }
 
@@ -152,7 +175,7 @@ func generateColsVarBlock(si *structInfo) string {
 	}
 	b.WriteString("}{\n")
 	for _, f := range si.Fields {
-		b.WriteString(fmt.Sprintf("\t%s: gormcol.Field{Table: %s, Column: %q},\n", f.GoName, si.TableConst, f.ColName))
+		b.WriteString(fmt.Sprintf("\t%s: gormcol.Field{Column: %q},\n", f.GoName, f.ColName))
 	}
 	b.WriteString("}\n")
 	return b.String()