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hedera/sql/sql-update.c

118 lines
3.1 KiB
C

/*
* Copyright (C) 2012 - Juan Ferrer Toribio
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#include "sql-update.h"
/**
* SECTION: sql-update
* @Short_description: an SQL UPDATE statement
* @Title: SqlUpdate
*
* Represents an SQL UPDATE statement.
**/
G_DEFINE_TYPE (SqlUpdate, sql_update, SQL_TYPE_DML);
SqlObject * sql_update_new ()
{
return g_object_new (SQL_TYPE_UPDATE, NULL);
}
//+++++++++++++++++++++++++++++++++++++++++++++++++++ Private
static void sql_update_render (SqlUpdate * obj, SqlRender * render)
{
sql_render_add_list (render, TRUE, "UPDATE", SQL_DML (obj)->targets, ",");
if (SQL_DML (obj)->targets)
{
sql_render_add_list (render, TRUE, "SET", obj->sets, ",");
sql_render_add_item (render, FALSE, "WHERE", SQL_DML (obj)->where);
}
}
//+++++++++++++++++++++++++++++++++++++++++++++++++++ Public
void sql_update_add_set (SqlUpdate * obj, SqlField * field, SqlExpr * expr)
{
g_return_if_fail (SQL_IS_UPDATE (obj));
g_return_if_fail (SQL_IS_FIELD (field) && SQL_IS_EXPR (expr));
}
//+++++++++++++++++++++++++++++++++++++++++++++++++++ Properties
enum
{
PROP_SETS = 1
};
static void sql_update_set_property (SqlUpdate * obj, guint id,
const GValue * value, GParamSpec * pspec)
{
switch (id)
{
case PROP_SETS:
sql_object_remove (obj, obj->sets);
obj->sets = sql_object_add (obj, g_value_get_object (value));
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (obj, id, pspec);
}
}
static void sql_update_get_property (SqlUpdate * obj, guint id,
GValue * value, GParamSpec * pspec)
{
switch (id)
{
case PROP_SETS:
g_value_set_object (value, obj->sets);
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (obj, id, pspec);
}
}
//+++++++++++++++++++++++++++++++++++++++++++++++++++ Class
static void sql_update_init (SqlUpdate * obj)
{
obj->sets = NULL;
}
static void sql_update_finalize (SqlUpdate * obj)
{
sql_object_remove (obj, obj->sets);
G_OBJECT_CLASS (sql_update_parent_class)->finalize (G_OBJECT (obj));
}
static void sql_update_class_init (SqlUpdateClass * klass)
{
GObjectClass * k = G_OBJECT_CLASS (klass);
k->finalize = (GObjectFinalizeFunc) sql_update_finalize;
k->set_property = (GObjectSetPropertyFunc) sql_update_set_property;
k->get_property = (GObjectGetPropertyFunc) sql_update_get_property;
SQL_OBJECT_CLASS (klass)->render = (SqlRenderFunc) sql_update_render;
g_object_class_install_property (k, PROP_SETS,
sql_param_list ("sets"
,("Sets")
,("A list of sets")
,SQL_TYPE_UPDATE_SET
,G_PARAM_READWRITE | G_PARAM_CONSTRUCT
));
}