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https://github.com/Gnucash/gnucash.git
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bbd2df6a3b
Set a feature to prevent versions older that 2.6.20 from loading a database from which they cannot read the dates. Ideally we would do this only if the database is written to, but the current persistence design includes committing back to the database during the load so the net effect is that the flag would be set anyway.
85 lines
3.2 KiB
C
85 lines
3.2 KiB
C
/********************************************************************\
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* gnc-features.h -- manage GnuCash features table *
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* Copyright (C) 2011 Derek Atkins <derek@ihtfp.com> *
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* Copyright (C) 2012 Geert Janssens <geert@kobaltwit.be> *
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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, write to the Free Software *
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* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. *
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* *
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\********************************************************************/
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/** @addtogroup Utils Utility functions
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@{ */
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/** @addtogroup UtilFeature Features
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* @{ */
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/** @file gnc-features.h
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* @brief Utility functions for file access
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* @author Copyright (C) 2011 Derek Atkins <derek@ihtfp.com>
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* @author Copyright (C) 2012 Geert Janssens <geert@kobaltwit.be>
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*
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* These functions help you to manage features that GnuCash supports.
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* This is mainly used to prevent older GnuCash versions from opening
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* book with data they aren't capable of processing properly.
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*/
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#ifndef GNC_FEATURES_H
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#define GNC_FEATURES_H
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#include "qof.h"
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#ifdef __cplusplus
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extern "C" {
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#endif
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/** @name Defined features
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@{
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*/
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#define GNC_FEATURE_CREDIT_NOTES "Credit Notes"
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#define GNC_FEATURE_NUM_FIELD_SOURCE "Number Field Source"
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#define GNC_FEATURE_KVP_EXTRA_DATA "Extra data in addresses, jobs or invoice entries"
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#define GNC_FEATURE_BOOK_CURRENCY "Use a Book-Currency"
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#define GNC_FEATURE_GUID_BAYESIAN "Account GUID based Bayesian data"
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#define GNC_FEATURE_GUID_FLAT_BAYESIAN "Account GUID based bayesian with flat KVP"
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#define GNC_FEATURE_SQLITE3_ISO_DATES "ISO-8601 formatted date strings in SQLite3 databases."
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/** @} */
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/**
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* Test if the current book relies on features only introduced in a more
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* recent version of GnuCash.
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*
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* Returns a message to display if we found unknown features, NULL if we're okay.
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*/
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gchar *gnc_features_test_unknown (QofBook *book);
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/**
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* Indicate that the current book uses the given feature. This will prevent
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* older versions of GnuCash that don't support this feature to refuse to load
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* this book.
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*/
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void gnc_features_set_used (QofBook *book, const gchar *feature);
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/*
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* Returns true if the specified feature is used.
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*/
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gboolean gnc_features_check_used (QofBook *, char const * feature);
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#ifdef __cplusplus
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} /* extern "C" */
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#endif /*__cplusplus*/
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#endif /* GNC_FEATURES_H */
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/** @} */
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/** @} */
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