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#include <glib.h>
#ifndef WIN32
#include <unistd.h>
#endif
#include "db.h"
int
sqlite_open_db (const char *db_path, sqlite3 **db)
{
int result;
const char *errmsg;
result = sqlite3_open (db_path, db);
if (result) {
errmsg = sqlite3_errmsg (*db);
g_warning ("Couldn't open database:'%s', %s\n",
db_path, errmsg ? errmsg : "no error given");
sqlite3_close (*db);
return -1;
}
return 0;
}
int sqlite_close_db (sqlite3 *db)
{
return sqlite3_close (db);
}
sqlite3_stmt *
sqlite_query_prepare (sqlite3 *db, const char *sql)
{
sqlite3_stmt *stmt;
int result;
result = sqlite3_prepare_v2 (db, sql, -1, &stmt, NULL);
if (result != SQLITE_OK) {
const gchar *str = sqlite3_errmsg (db);
g_warning ("Couldn't prepare query, error:%d->'%s'\n\t%s\n",
result, str ? str : "no error given", sql);
return NULL;
}
return stmt;
}
int
sqlite_query_exec (sqlite3 *db, const char *sql)
{
char *errmsg = NULL;
int result;
result = sqlite3_exec (db, sql, NULL, NULL, &errmsg);
if (result != SQLITE_OK) {
if (errmsg != NULL) {
g_warning ("SQL error: %d - %s\n:\t%s\n", result, errmsg, sql);
sqlite3_free (errmsg);
}
return -1;
}
return 0;
}
int
sqlite_begin_transaction (sqlite3 *db)
{
char *sql = "BEGIN TRANSACTION;";
return sqlite_query_exec (db, sql);
}
int
sqlite_end_transaction (sqlite3 *db)
{
char *sql = "END TRANSACTION;";
return sqlite_query_exec (db, sql);
}
gboolean
sqlite_check_for_existence (sqlite3 *db, const char *sql)
{
sqlite3_stmt *stmt;
int result;
stmt = sqlite_query_prepare (db, sql);
if (!stmt)
return FALSE;
result = sqlite3_step (stmt);
if (result == SQLITE_ERROR) {
const gchar *str = sqlite3_errmsg (db);
g_warning ("Couldn't execute query, error: %d->'%s'\n",
result, str ? str : "no error given");
sqlite3_finalize (stmt);
return FALSE;
}
sqlite3_finalize (stmt);
if (result == SQLITE_ROW)
return TRUE;
return FALSE;
}
int
sqlite_foreach_selected_row (sqlite3 *db, const char *sql,
SqliteRowFunc callback, void *data)
{
sqlite3_stmt *stmt;
int result;
int n_rows = 0;
stmt = sqlite_query_prepare (db, sql);
if (!stmt) {
return -1;
}
while (1) {
result = sqlite3_step (stmt);
if (result != SQLITE_ROW)
break;
n_rows++;
if (!callback (stmt, data))
break;
}
if (result == SQLITE_ERROR) {
const gchar *s = sqlite3_errmsg (db);
g_warning ("Couldn't execute query, error: %d->'%s'\n",
result, s ? s : "no error given");
sqlite3_finalize (stmt);
return -1;
}
sqlite3_finalize (stmt);
return n_rows;
}
int sqlite_get_int (sqlite3 *db, const char *sql)
{
int ret = -1;
int result;
sqlite3_stmt *stmt;
if ( !(stmt = sqlite_query_prepare(db, sql)) )
return 0;
result = sqlite3_step (stmt);
if (result == SQLITE_ROW) {
ret = sqlite3_column_int (stmt, 0);
sqlite3_finalize (stmt);
return ret;
}
if (result == SQLITE_ERROR) {
const gchar *str = sqlite3_errmsg (db);
g_warning ("Couldn't execute query, error: %d->'%s'\n",
result, str ? str : "no error given");
sqlite3_finalize (stmt);
return -1;
}
sqlite3_finalize(stmt);
return ret;
}
gint64 sqlite_get_int64 (sqlite3 *db, const char *sql)
{
gint64 ret = -1;
int result;
sqlite3_stmt *stmt;
if ( !(stmt = sqlite_query_prepare(db, sql)) )
return 0;
result = sqlite3_step (stmt);
if (result == SQLITE_ROW) {
ret = sqlite3_column_int64 (stmt, 0);
sqlite3_finalize (stmt);
return ret;
}
if (result == SQLITE_ERROR) {
const gchar *str = sqlite3_errmsg (db);
g_warning ("Couldn't execute query, error: %d->'%s'\n",
result, str ? str : "no error given");
sqlite3_finalize (stmt);
return -1;
}
sqlite3_finalize(stmt);
return ret;
}
char *sqlite_get_string (sqlite3 *db, const char *sql)
{
const char *res = NULL;
int result;
sqlite3_stmt *stmt;
char *ret;
if ( !(stmt = sqlite_query_prepare(db, sql)) )
return NULL;
result = sqlite3_step (stmt);
if (result == SQLITE_ROW) {
res = (const char *)sqlite3_column_text (stmt, 0);
ret = g_strdup(res);
sqlite3_finalize (stmt);
return ret;
}
if (result == SQLITE_ERROR) {
const gchar *str = sqlite3_errmsg (db);
g_warning ("Couldn't execute query, error: %d->'%s'\n",
result, str ? str : "no error given");
sqlite3_finalize (stmt);
return NULL;
}
sqlite3_finalize(stmt);
return NULL;
}
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