mirror of
https://github.com/Gnucash/gnucash.git
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937f8c5083
For each subclass, getting rid of GNC_SQL_OBJECT_BACKEND_VERSION which was a bit misguided. Also remove the bogus test the skipped loading a table if its version didn't match GNC_SQL_OBJECT_BACKEND_VERSION which was even more misguided.
224 lines
6.9 KiB
C++
224 lines
6.9 KiB
C++
/********************************************************************
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* gnc-lots-sql.c: load and save data to SQL *
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* *
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* This program is free software; you can redistribute it and/or *
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* modify it under the terms of the GNU General Public License as *
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* published by the Free Software Foundation; either version 2 of *
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* the License, or (at your option) any later version. *
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* *
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* This program is distributed in the hope that it will be useful, *
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* but WITHOUT ANY WARRANTY; without even the implied warranty of *
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
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* GNU General Public License for more details. *
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* *
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* You should have received a copy of the GNU General Public License*
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* along with this program; if not, contact: *
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* *
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* Free Software Foundation Voice: +1-617-542-5942 *
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* 51 Franklin Street, Fifth Floor Fax: +1-617-542-2652 *
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* Boston, MA 02110-1301, USA gnu@gnu.org *
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\********************************************************************/
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/** @file gnc-lots-sql.c
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* @brief load and save data to SQL
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* @author Copyright (c) 2006-2008 Phil Longstaff <plongstaff@rogers.com>
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*
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* This file implements the top-level QofBackend API for saving/
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* restoring data to/from an SQL db
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*/
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#include <guid.hpp>
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extern "C"
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{
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#include <config.h>
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#include <glib.h>
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#include "qof.h"
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#include "Account.h"
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#include "gnc-lot.h"
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#if defined( S_SPLINT_S )
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#include "splint-defs.h"
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#endif
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}
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#include "gnc-sql-connection.hpp"
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#include "gnc-sql-backend.hpp"
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#include "gnc-sql-object-backend.hpp"
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#include "gnc-sql-column-table-entry.hpp"
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#include "gnc-slots-sql.h"
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#include "gnc-lots-sql.h"
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static QofLogModule log_module = G_LOG_DOMAIN;
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#define TABLE_NAME "lots"
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#define TABLE_VERSION 2
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static gpointer get_lot_account (gpointer pObject);
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static void set_lot_account (gpointer pObject, gpointer pValue);
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static const EntryVec col_table
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({
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gnc_sql_make_table_entry<CT_GUID>("guid", 0, COL_NNUL | COL_PKEY, "guid"),
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gnc_sql_make_table_entry<CT_ACCOUNTREF>("account_guid", 0, 0,
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(QofAccessFunc)get_lot_account,
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set_lot_account),
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gnc_sql_make_table_entry<CT_BOOLEAN>("is_closed", 0, COL_NNUL, "is-closed")
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});
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GncSqlLotsBackend::GncSqlLotsBackend() :
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GncSqlObjectBackend(TABLE_VERSION, GNC_ID_LOT,
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TABLE_NAME, col_table) {}
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/* ================================================================= */
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static gpointer
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get_lot_account (gpointer pObject)
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{
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const GNCLot* lot;
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Account* pAccount;
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g_return_val_if_fail (pObject != NULL, NULL);
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g_return_val_if_fail (GNC_IS_LOT (pObject), NULL);
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lot = GNC_LOT (pObject);
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pAccount = gnc_lot_get_account (lot);
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return pAccount;
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}
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static void
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set_lot_account (gpointer pObject, gpointer pValue)
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{
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GNCLot* lot;
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Account* pAccount;
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g_return_if_fail (pObject != NULL && GNC_IS_LOT (pObject));
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g_return_if_fail (pValue == NULL || GNC_IS_ACCOUNT (pValue));
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lot = GNC_LOT (pObject);
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pAccount = GNC_ACCOUNT (pValue);
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if (pAccount != NULL)
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{
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xaccAccountInsertLot (pAccount, lot);
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}
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}
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static GNCLot*
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load_single_lot (GncSqlBackend* sql_be, GncSqlRow& row)
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{
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GNCLot* lot;
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g_return_val_if_fail (sql_be != NULL, NULL);
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lot = gnc_lot_new (sql_be->book());
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gnc_lot_begin_edit (lot);
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gnc_sql_load_object (sql_be, row, GNC_ID_LOT, lot, col_table);
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gnc_lot_commit_edit (lot);
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return lot;
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}
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void
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GncSqlLotsBackend::load_all (GncSqlBackend* sql_be)
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{
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g_return_if_fail (sql_be != NULL);
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std::stringstream sql;
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sql << "SELECT * FROM " << TABLE_NAME;
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auto stmt = sql_be->create_statement_from_sql(sql.str());
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if (stmt != nullptr)
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{
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auto result = sql_be->execute_select_statement(stmt);
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if (result->begin () == nullptr)
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return;
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for (auto row : *result)
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load_single_lot (sql_be, row);
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auto sql = g_strdup_printf ("SELECT DISTINCT guid FROM %s",
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TABLE_NAME);
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gnc_sql_slots_load_for_sql_subquery (sql_be, sql, (BookLookupFn)gnc_lot_lookup);
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g_free (sql);
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}
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}
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/* ================================================================= */
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void
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GncSqlLotsBackend::create_tables (GncSqlBackend* sql_be)
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{
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gint version;
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g_return_if_fail (sql_be != NULL);
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version = sql_be->get_table_version( TABLE_NAME);
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if (version == 0)
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{
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/* The table doesn't exist, so create it */
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(void)sql_be->create_table(TABLE_NAME, TABLE_VERSION, col_table);
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}
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else if (version < m_version)
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{
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/* Version 1 -> 2 removes the 'NOT NULL' constraint on the account_guid
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field.
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Create a temporary table, copy the data from the old table, delete the
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old table, then rename the new one. */
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sql_be->upgrade_table(TABLE_NAME, col_table);
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sql_be->set_table_version (TABLE_NAME, TABLE_VERSION);
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PINFO ("Lots table upgraded from version 1 to version %d\n", TABLE_VERSION);
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}
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}
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static void
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do_save_lot (QofInstance* inst, gpointer data)
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{
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auto s = reinterpret_cast<write_objects_t*>(data);
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if (s->is_ok)
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{
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s->commit (inst);
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}
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}
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bool
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GncSqlLotsBackend::write (GncSqlBackend* sql_be)
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{
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g_return_val_if_fail (sql_be != NULL, FALSE);
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write_objects_t data{sql_be, true, this};
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qof_collection_foreach (qof_book_get_collection (sql_be->book(), GNC_ID_LOT),
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(QofInstanceForeachCB)do_save_lot, &data);
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return data.is_ok;
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}
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/* ================================================================= */
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template<> void
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GncSqlColumnTableEntryImpl<CT_LOTREF>::load (const GncSqlBackend* sql_be,
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GncSqlRow& row,
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QofIdTypeConst obj_name,
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gpointer pObject) const noexcept
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{
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load_from_guid_ref(row, obj_name, pObject,
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[sql_be](GncGUID* g){
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return gnc_lot_lookup(g, sql_be->book());
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});
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}
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template<> void
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GncSqlColumnTableEntryImpl<CT_LOTREF>::add_to_table(ColVec& vec) const noexcept
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{
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add_objectref_guid_to_table(vec);
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}
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template<> void
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GncSqlColumnTableEntryImpl<CT_LOTREF>::add_to_query(QofIdTypeConst obj_name,
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const gpointer pObject,
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PairVec& vec) const noexcept
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{
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add_objectref_guid_to_query(obj_name, pObject, vec);
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}
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/* ========================== END OF FILE ===================== */
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