GncSqlCommodityBackend Class Reference

Inheritance diagram for GncSqlCommodityBackend:

Public Member Functions
void	load_all (GncSqlBackend *) override
	Load all objects of m_type in the database into memory.
bool	commit (GncSqlBackend *, QofInstance *) override
	UPDATE/INSERT a single instance of m_type_name into the database.
Public Member Functions inherited from GncSqlObjectBackend
	GncSqlObjectBackend (int version, const std::string &type, const std::string &table, const EntryVec &vec)
virtual void	create_tables (GncSqlBackend *sql_be)
	Conditionally create or update a database table from m_col_table.
virtual bool	write (GncSqlBackend *sql_be)
	Write all objects of m_type_name to the database.
const char *	type () const noexcept
	Return the m_type_name for the class.
const bool	is_version (int version) const noexcept
	Compare a version with the compiled version (m_version).
bool	instance_in_db (const GncSqlBackend *sql_be, QofInstance *inst) const noexcept
	Check the presence of an object in the backend's database.

Additional Inherited Members
Protected Attributes inherited from GncSqlObjectBackend
const std::string	m_table_name
const int	m_version
const std::string	m_type_name
const EntryVec &	m_col_table
	The front-end QofIdType.

Detailed Description

Definition at line 37 of file gnc-commodity-sql.h.

Constructor & Destructor Documentation

GncSqlCommodityBackend()

GncSqlCommodityBackend::GncSqlCommodityBackend

(

)

Definition at line 87 of file gnc-commodity-sql.cpp.

                                               :
    GncSqlObjectBackend(TABLE_VERSION, GNC_ID_COMMODITY,
                        COMMODITIES_TABLE, col_table) {}

Member Function Documentation

commit()

bool GncSqlCommodityBackend::commit ( GncSqlBackend *  sql_be, QofInstance *  inst  )

overridevirtual

UPDATE/INSERT a single instance of m_type_name into the database.

Parameters

sql_be	The GncSqlBackend containing the database.
inst	The QofInstance to be written out.

Reimplemented from GncSqlObjectBackend.

Definition at line 214 of file gnc-commodity-sql.cpp.

{
    g_return_val_if_fail (sql_be != NULL, FALSE);
    g_return_val_if_fail (inst != NULL, FALSE);
    g_return_val_if_fail (GNC_IS_COMMODITY (inst), FALSE);
    auto in_be = instance_in_db(sql_be, inst);
    return do_commit_commodity (sql_be, inst, !in_be);
}

load_all()

void GncSqlCommodityBackend::load_all ( GncSqlBackend *  sql_be )

overridevirtual

Load all objects of m_type in the database into memory.

Parameters

sql_be

The GncSqlBackend containing the database connection.

Implements GncSqlObjectBackend.

Definition at line 139 of file gnc-commodity-sql.cpp.

{
    gnc_commodity_table* pTable;
 
    pTable = gnc_commodity_table_get_table (sql_be->book());
    std::string sql("SELECT * FROM " COMMODITIES_TABLE);
    auto stmt = sql_be->create_statement_from_sql(sql);
    auto result = sql_be->execute_select_statement(stmt);
 
    for (auto row : *result)
    {
        auto pCommodity = load_single_commodity (sql_be, row);
 
        if (pCommodity != NULL)
        {
            GncGUID guid;
 
            guid = *qof_instance_get_guid (QOF_INSTANCE (pCommodity));
            pCommodity = gnc_commodity_table_insert (pTable, pCommodity);
            if (qof_instance_is_dirty (QOF_INSTANCE (pCommodity)))
                sql_be->commodity_for_postload_processing(pCommodity);
            qof_instance_set_guid (QOF_INSTANCE (pCommodity), &guid);
        }
 
    }
    std::string pkey(col_table[0]->name());
    sql = "SELECT DISTINCT ";
    sql += pkey + " FROM " COMMODITIES_TABLE;
    gnc_sql_slots_load_for_sql_subquery (sql_be, sql,
                     (BookLookupFn)gnc_commodity_find_commodity_by_guid);
}

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The documentation for this class was generated from the following files:

• gnc-commodity-sql.h
• gnc-commodity-sql.cpp