Line data    Source code

       1              : /***********************************************************************\
       2              :  * gnc-sql-object-backend.hpp: Encapsulate per-class table schema.     *
       3              :  *                                                                     *
       4              :  * Copyright 2016 John Ralls <jralls@ceridwen.us>                      *
       5              :  *                                                                     *
       6              :  * This program is free software; you can redistribute it and/or       *
       7              :  * modify it under the terms of the GNU General Public License as      *
       8              :  * published by the Free Software Foundation; either version 2 of      *
       9              :  * the License, or (at your option) any later version.                 *
      10              :  *                                                                     *
      11              :  * This program is distributed in the hope that it will be useful,     *
      12              :  * but WITHOUT ANY WARRANTY; without even the implied warranty of      *
      13              :  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the       *
      14              :  * GNU General Public License for more details.                        *
      15              :  *                                                                     *
      16              :  * You should have received a copy of the GNU General Public License   *
      17              :  * along with this program; if not, contact:                           *
      18              :  *                                                                     *
      19              :  * Free Software Foundation           Voice:  +1-617-542-5942          *
      20              :  * 51 Franklin Street, Fifth Floor    Fax:    +1-617-542-2652          *
      21              :  * Boston, MA  02110-1301,  USA       gnu@gnu.org                      *
      22              : \***********************************************************************/
      23              : 
      24              : #include <config.h>
      25              : #include "gnc-sql-object-backend.hpp"
      26              : #include "gnc-sql-backend.hpp"
      27              : #include "gnc-sql-column-table-entry.hpp"
      28              : #include "gnc-slots-sql.h"
      29              : 
      30              : static QofLogModule log_module = G_LOG_DOMAIN;
      31              : 
      32              : bool
      33           16 : GncSqlObjectBackend::commit (GncSqlBackend* sql_be, QofInstance* inst)
      34              : {
      35              :     const GncGUID* guid;
      36              :     gboolean is_infant;
      37              :     E_DB_OPERATION op;
      38              :     gboolean is_ok;
      39              : 
      40           16 :     is_infant = qof_instance_get_infant (inst);
      41           16 :     if (qof_instance_get_destroying (inst))
      42              :     {
      43            0 :         op = OP_DB_DELETE;
      44              :     }
      45           16 :     else if (sql_be->pristine() || is_infant)
      46              :     {
      47           11 :         op = OP_DB_INSERT;
      48              :     }
      49              :     else
      50              :     {
      51            5 :         op = OP_DB_UPDATE;
      52              :     }
      53           16 :     is_ok = sql_be->do_db_operation(op, m_table_name.c_str(),
      54              :                                     m_type_name.c_str(), inst, m_col_table);
      55              : 
      56           16 :     if (is_ok)
      57              :     {
      58              :         // Now, commit any slots
      59           16 :         guid = qof_instance_get_guid (inst);
      60           16 :         if (!qof_instance_get_destroying (inst))
      61              :         {
      62           16 :             is_ok = gnc_sql_slots_save (sql_be, guid, is_infant, inst);
      63              :         }
      64              :         else
      65              :         {
      66            0 :             is_ok = gnc_sql_slots_delete (sql_be, guid);
      67              :         }
      68              :     }
      69              : 
      70           16 :     return is_ok;
      71              : }
      72              : 
      73              : void
      74           91 : GncSqlObjectBackend::create_tables (GncSqlBackend* sql_be)
      75              : {
      76           91 :     g_return_if_fail (sql_be != nullptr);
      77           91 :     int version = sql_be->get_table_version (m_table_name);
      78           91 :     if (version == 0) //No tables, otherwise version will sql_be >= 1.
      79              :     {
      80           42 :         sql_be->create_table(m_table_name, m_col_table);
      81           42 :         sql_be->set_table_version(m_table_name, m_version);
      82              :     }
      83           49 :     else if (version != m_version)
      84            0 :         PERR("Version mismatch in table %s, expecting %d but backend is %d."
      85              :              "Table creation aborted.", m_table_name.c_str(), m_version, version);
      86              : }
      87              : 
      88              : bool
      89           50 : GncSqlObjectBackend::instance_in_db(const GncSqlBackend* sql_be,
      90              :                                     QofInstance* inst) const noexcept
      91              : {
      92           50 :     return sql_be->object_in_db(m_table_name.c_str(), m_type_name.c_str(),
      93           50 :                                 inst, m_col_table);
      94              : }