diff --git a/db/db-calc.c b/db/db-calc.c
index d7994d2..fa703cb 100644
--- a/db/db-calc.c
+++ b/db/db-calc.c
@@ -42,25 +42,14 @@ G_DEFINE_TYPE (DbCalc, db_calc, GVN_TYPE_PARAM);
 
 /**
  * db_calc_new:
- * @model: the #DbModel in which the operations will apply
- * @type: the #DbCalcOperationType
- * @col: the number of a column (starting with 0)
  * 
- * Creates a new #DbCalc using @col to select the only column to be processed
- * in each row of @model.
+ * Creates a new #DbCalc.
  * 
  * Return value: a new #DbCalc
  **/
-DbCalc * db_calc_new (DbModel * model, DbCalcType type, const gchar * column_name)
+DbCalc * db_calc_new ()
 {
-	g_return_val_if_fail (DB_IS_MODEL (model), NULL);
-
-	return g_object_new (DB_TYPE_CALC
-		,"model", model
-		,"type", type
-		,"column-name", column_name
-		,NULL
-	);
+	return g_object_new (DB_TYPE_CALC, NULL);
 }
 
 /**
@@ -416,7 +405,7 @@ static void db_calc_class_init (DbCalcClass * k)
 			,_("Model")
 			,_("The model where the operations will be applied")
 			,DB_TYPE_MODEL
-			,G_PARAM_CONSTRUCT_ONLY | G_PARAM_READWRITE)
+			,G_PARAM_READWRITE)
 	);
 
 	g_object_class_install_property (klass, PROP_TYPE
@@ -425,21 +414,21 @@ static void db_calc_class_init (DbCalcClass * k)
 			,_("The type of the operation applied over the function")
 			,DB_TYPE_CALC_TYPE
 			,DB_CALC_TYPE_SUM
-			,G_PARAM_CONSTRUCT_ONLY | G_PARAM_READWRITE)
+			,G_PARAM_READWRITE)
 	);
 
 	g_object_class_install_property (klass, PROP_FUNC
 		,g_param_spec_pointer ("function"
 			,_("Function")
 			,_("The function to execute")
-			,G_PARAM_CONSTRUCT_ONLY | G_PARAM_READWRITE)
+			,G_PARAM_READWRITE)
 	);
 
 	g_object_class_install_property (klass, PROP_DATA
 		,g_param_spec_pointer ("data"
 			,_("Data")
 			,_("The user provided data for the function")
-			,G_PARAM_CONSTRUCT_ONLY | G_PARAM_READWRITE)
+			,G_PARAM_READWRITE)
 	);
 
 	g_object_class_install_property (klass, PROP_COLUMN_INDEX
@@ -449,7 +438,7 @@ static void db_calc_class_init (DbCalcClass * k)
 			,-1
 			,G_MAXINT
 			,-1
-			,G_PARAM_CONSTRUCT_ONLY | G_PARAM_READWRITE)
+			,G_PARAM_READWRITE)
 	);
 
 	g_object_class_install_property (klass, PROP_COLUMN_NAME
@@ -457,7 +446,7 @@ static void db_calc_class_init (DbCalcClass * k)
 			,_("Column name")
 			,_("A column name to apply the operations over it")
 			,NULL
-			,G_PARAM_CONSTRUCT_ONLY | G_PARAM_READWRITE)
+			,G_PARAM_READWRITE)
 	);
 }
 
diff --git a/db/db-calc.h b/db/db-calc.h
index f0c8b8f..de49f8e 100644
--- a/db/db-calc.h
+++ b/db/db-calc.h
@@ -87,9 +87,7 @@ struct _DbCalcClass
 GType		db_calc_get_type		();
 GType		db_calc_type_get_type   ();
 
-DbCalc *	db_calc_new				(DbModel * model
-									,DbCalcType type
-									,const gchar * column_name);
+DbCalc *	db_calc_new				();
 DbCalc *	db_calc_new_with_func	(DbModel * model
 									,DbCalcType type
 									,DbCalcFunc func
diff --git a/vn/field/field.h b/vn/field/field.h
index a66e177..1331495 100644
--- a/vn/field/field.h
+++ b/vn/field/field.h
@@ -18,14 +18,15 @@
 #ifndef FIELD_H
 #define FIELD_H
 
-#include "vn-entry.h"
-#include "vn-spin.h"
 #include "vn-calendar.h"
-#include "vn-combo.h"
 #include "vn-check.h"
-#include "vn-image.h"
+#include "vn-combo.h"
 #include "vn-completion.h"
 #include "vn-date-chooser.h"
+#include "vn-entry.h"
 #include "vn-http-image.h"
+#include "vn-image.h"
+#include "vn-label.h"
+#include "vn-spin.h"
 
 #endif
\ No newline at end of file