125 lines
2.8 KiB
C
125 lines
2.8 KiB
C
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/*
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* Copyright (C) 2012 - Juan Ferrer Toribio
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (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, see <http://www.gnu.org/licenses/>.
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*/
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#include "db-row.h"
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/**
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* SECTION: db-row
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* @Short_description: a row from a #DbModel
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* @Title: DbRow
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* @See_also: #DbModel
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*
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* #DbRow represents a row in a #DbModel.
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**/
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G_DEFINE_BOXED_TYPE (DbRow, db_row, db_row_copy, db_row_free);
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/**
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* db_row_new:
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* @len: the lenght of the #DbRow.
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* @position: the position where the returned #DbRow will be placed.
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*
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* Sets a newly allocated #DbRow of lenght @len with position @postition.
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* This new structure must be freed using db_row_free().
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*
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* Return value: a new #DbRow
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**/
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DbRow * db_row_new (gint len, gint position)
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{
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DbRow * row = g_slice_new (DbRow);
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row->value = g_new0 (GValue, len);
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row->position = position;
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row->len = len;
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return row;
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}
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/**
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* db_row_free:
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* @row: the row that you want to free.
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*
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* Frees a #DbRow of a #DbResult.
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**/
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void db_row_free (DbRow * row)
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{
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gint n;
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for (n = 0; n < row->len; n++)
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g_value_unset (&row->value[n]);
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g_free (row->value);
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g_slice_free (DbRow, row);
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}
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/**
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* db_row_copy:
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* @row: a #DbRow
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*
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* Copies a #DbRow.
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*
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* Return value: a new copy of @row
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**/
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DbRow * db_row_copy (const DbRow * row)
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{
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gint n;
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DbRow * new;
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g_return_val_if_fail (row, NULL);
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new = g_new (DbRow, 1);
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new->len = row->len;
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new->position = row->position;
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new->value = g_new (GValue, new->len);
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for (n = 0; n < new->len; n++)
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g_value_copy
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(g_value_init (&new->value[n], G_VALUE_TYPE (&row->value))
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,&row->value[n]);
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return new;
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}
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/**
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* db_row_get_value:
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* @row: a #DbRow
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* @index: the index of the value in @row
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*
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* Returns the value placed in the position @index of @row.
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*
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* Return value: a #GValue
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**/
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const GValue * db_row_get_value (const DbRow * row, gint index)
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{
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g_return_val_if_fail (row, NULL);
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g_return_val_if_fail (index >= 0 && index < row->len, NULL);
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return &row->value[index];
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}
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/**
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* db_row_get_position:
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* @row: a #DbRow
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*
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* Returns the position where @row in the model it belongs to.
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*
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* Return value: the position of @row in its model or -1 if index is out of
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**/
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gint db_row_get_position (const DbRow * row)
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{
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g_return_val_if_fail (row, -1);
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return row->position;
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}
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