/*
* Create a new filled #GdaRow object for the row at position @rownum, and put it into *prow.
*
* Each new #GdaRow created needs to be "given" to the #GdaDataSelect implementation using
* gda_data_select_take_row() because backward iterating is not supported.
*/
static gboolean
gda_oracle_recordset_fetch_random (GdaDataSelect *model, GdaRow **prow, gint rownum, GError **error)
{
GdaOracleRecordset *imodel;
OracleConnectionData *cdata;
GdaConnection *cnc;
imodel = GDA_ORACLE_RECORDSET (model);
cnc = gda_data_select_get_connection (model);
cdata = (OracleConnectionData*) gda_connection_internal_get_provider_data_error (cnc, error);
if (!cdata)
return TRUE;
if (imodel->priv->next_row_num >= rownum) {
g_set_error (error, GDA_SERVER_PROVIDER_ERROR,
GDA_SERVER_PROVIDER_INTERNAL_ERROR,
"%s", _("Requested row could not be found"));
return TRUE;
}
for (*prow = fetch_next_oracle_row (imodel, TRUE, error);
*prow && (imodel->priv->next_row_num < rownum);
*prow = fetch_next_oracle_row (imodel, TRUE, error));
return TRUE;
}
static GdaRow *
fetch_next_oracle_row (GdaOracleRecordset *model, G_GNUC_UNUSED gboolean do_store, GError **error)
{
int result;
GdaRow *prow = NULL;
GdaOraclePStmt *ps = GDA_ORACLE_PSTMT (((GdaDataSelect*)model)->prep_stmt);
OracleConnectionData *cdata;
GdaConnection *cnc;
cnc = gda_data_select_get_connection ((GdaDataSelect*) model);
cdata = (OracleConnectionData*) gda_connection_internal_get_provider_data_error (cnc, error);
if (!cdata)
return NULL;
/* fetch row */
if (cdata->major_version > 9)
result = OCIStmtFetch2 (ps->hstmt,
cdata->herr,
(ub4) 1,
(ub2) OCI_FETCH_NEXT,
(sb4) 1,
(ub4) OCI_DEFAULT);
else
result = OCIStmtFetch (ps->hstmt,
cdata->herr,
(ub4) 1,
(ub2) OCI_FETCH_NEXT,
(ub4) OCI_DEFAULT);
if (result == OCI_NO_DATA) {
GDA_DATA_SELECT (model)->advertized_nrows = model->priv->next_row_num;
return NULL;
}
else {
GdaConnectionEvent *event;
if ((event = gda_oracle_check_result (result, cnc, cdata, OCI_HTYPE_ERROR,
_("Could not fetch next row")))) {
/* set @error */
g_set_error (error, GDA_SERVER_PROVIDER_ERROR, GDA_SERVER_PROVIDER_DATA_ERROR,
"%s", gda_connection_event_get_description (event));
return NULL;
}
}
prow = new_row ((GdaDataSelect*) model, cnc, ps);
gda_data_select_take_row ((GdaDataSelect*) model, prow, model->priv->next_row_num);
model->priv->next_row_num ++;
return prow;
}
static void
gda_sqlite_recordset_dispose (GObject *object)
{
GdaSqliteRecordset *recset = (GdaSqliteRecordset *) object;
g_return_if_fail (GDA_IS_SQLITE_RECORDSET (recset));
if (recset->priv) {
GdaSqlitePStmt *ps;
ps = GDA_SQLITE_PSTMT (GDA_DATA_SELECT (object)->prep_stmt);
ps->stmt_used = FALSE;
virt_cnc_set_working_obj (gda_data_select_get_connection ((GdaDataSelect*) recset), recset);
SQLITE3_CALL (sqlite3_reset) (ps->sqlite_stmt);
virt_cnc_set_working_obj (gda_data_select_get_connection ((GdaDataSelect*) recset), NULL);
if (recset->priv->tmp_row)
g_object_unref (recset->priv->tmp_row);
g_free (recset->priv);
recset->priv = NULL;
}
parent_class->dispose (object);
}
static GdaRow *
fetch_next_sqlite_row (GdaSqliteRecordset *model, gboolean do_store, GError **error)
{
int rc;
SqliteConnectionData *cdata;
GdaSqlitePStmt *ps;
GdaRow *prow = NULL;
GdaConnection *cnc;
glong length;
cnc = gda_data_select_get_connection ((GdaDataSelect*) model);
cdata = (SqliteConnectionData*) gda_connection_internal_get_provider_data_error (cnc, error);
if (!cdata)
return NULL;
ps = GDA_SQLITE_PSTMT (GDA_DATA_SELECT (model)->prep_stmt);
virt_cnc_set_working_obj (gda_data_select_get_connection ((GdaDataSelect*) model), model);
if (model->priv->empty_forced)
rc = SQLITE_DONE;
else
rc = SQLITE3_CALL (sqlite3_step) (ps->sqlite_stmt);
switch (rc) {
case SQLITE_ROW: {
gint col, real_col;
prow = gda_row_new (_GDA_PSTMT (ps)->ncols);
for (col = 0; col < _GDA_PSTMT (ps)->ncols; col++) {
GValue *value;
GType type = _GDA_PSTMT (ps)->types [col];
real_col = col + ps->nb_rowid_columns;
if (type == GDA_TYPE_NULL) {
type = fuzzy_get_gtype (cdata, ps, col);
if (type == GDA_TYPE_BLOB) {
/* extra check: make sure we have a rowid for this blob, or fallback to binary */
if (ps->rowid_hash) {
gint oidcol = 0;
const char *ctable;
ctable = SQLITE3_CALL (sqlite3_column_name) (ps->sqlite_stmt, real_col);
if (ctable)
oidcol = GPOINTER_TO_INT (g_hash_table_lookup (ps->rowid_hash,
ctable));
if (oidcol == 0) {
ctable = SQLITE3_CALL (sqlite3_column_table_name) (ps->sqlite_stmt, real_col);
if (ctable)
oidcol = GPOINTER_TO_INT (g_hash_table_lookup (ps->rowid_hash,
ctable));
}
if (oidcol == 0)
type = GDA_TYPE_BINARY;
}
else
type = GDA_TYPE_BINARY;
}
if (type != GDA_TYPE_NULL) {
GdaColumn *column;
_GDA_PSTMT (ps)->types [col] = type;
column = gda_data_model_describe_column (GDA_DATA_MODEL (model), col);
gda_column_set_g_type (column, type);
column = (GdaColumn *) g_slist_nth_data (_GDA_PSTMT (ps)->tmpl_columns, col);
gda_column_set_g_type (column, type);
}
}
/* fill GValue */
value = gda_row_get_value (prow, col);
GError *may_error;
may_error = (GError*) SQLITE3_CALL (sqlite3_column_blob) (ps->sqlite_stmt, real_col);
if (may_error && g_hash_table_lookup (error_blobs_hash, may_error)) {
/*g_print ("Row invalidated: [%s]\n", may_error->message);*/
gda_row_invalidate_value_e (prow, value, may_error);
g_hash_table_remove (error_blobs_hash, may_error);
}
else if (SQLITE3_CALL (sqlite3_column_text) (ps->sqlite_stmt, real_col) == NULL) {
/* we have a NULL value */
gda_value_set_null (value);
}
else {
gda_value_reset_with_type (value, type);
if (type == GDA_TYPE_NULL)
;
else if (type == G_TYPE_INT) {
gint64 i;
i = SQLITE3_CALL (sqlite3_column_int64) (ps->sqlite_stmt, real_col);
if ((i > G_MAXINT) || (i < G_MININT)) {
GError *lerror = NULL;
g_set_error (&lerror, GDA_SERVER_PROVIDER_ERROR,
GDA_SERVER_PROVIDER_DATA_ERROR,
"%s", _("Integer value is too big"));
gda_row_invalidate_value_e (prow, value, lerror);
}
else
g_value_set_int (value, (gint) i);
}
else if (type == G_TYPE_UINT) {
guint64 i;
i = (gint64) SQLITE3_CALL (sqlite3_column_int64) (ps->sqlite_stmt, real_col);
if (i > G_MAXUINT) {
GError *lerror = NULL;
g_set_error (&lerror, GDA_SERVER_PROVIDER_ERROR,
GDA_SERVER_PROVIDER_DATA_ERROR,
"%s", _("Integer value is too big"));
gda_row_invalidate_value_e (prow, value, lerror);
}
else
g_value_set_uint (value, (gint) i);
}
else if (type == G_TYPE_INT64)
g_value_set_int64 (value, SQLITE3_CALL (sqlite3_column_int64) (ps->sqlite_stmt, real_col));
else if (type == G_TYPE_UINT64)
g_value_set_uint64 (value, (guint64) SQLITE3_CALL (sqlite3_column_int64) (ps->sqlite_stmt,
real_col));
else if (type == G_TYPE_DOUBLE)
g_value_set_double (value, SQLITE3_CALL (sqlite3_column_double) (ps->sqlite_stmt,
real_col));
else if (type == G_TYPE_STRING)
g_value_set_string (value, (gchar *) SQLITE3_CALL (sqlite3_column_text) (ps->sqlite_stmt,
real_col));
else if (type == GDA_TYPE_BINARY) {
GdaBinary *bin;
bin = gda_binary_new ();
length = SQLITE3_CALL (sqlite3_column_bytes) (ps->sqlite_stmt, real_col);
if (length > 0) {
gda_binary_set_data (bin, SQLITE3_CALL (sqlite3_column_blob) (ps->sqlite_stmt, /* Flawfinder: ignore */
real_col), length);
}
gda_value_take_binary (value, bin);
}
else if (type == GDA_TYPE_BLOB) {
GdaBlobOp *bop = NULL;
gint oidcol = 0;
if (ps->rowid_hash) {
const char *ctable;
ctable = SQLITE3_CALL (sqlite3_column_name) (ps->sqlite_stmt, real_col);
if (ctable)
oidcol = GPOINTER_TO_INT (g_hash_table_lookup (ps->rowid_hash,
ctable));
if (oidcol == 0) {
ctable = SQLITE3_CALL (sqlite3_column_table_name) (ps->sqlite_stmt, real_col);
if (ctable)
oidcol = GPOINTER_TO_INT (g_hash_table_lookup (ps->rowid_hash,
ctable));
}
}
if (oidcol != 0) {
gint64 rowid;
rowid = SQLITE3_CALL (sqlite3_column_int64) (ps->sqlite_stmt, oidcol - 1); /* remove 1
because it was added in the first place */
bop = _gda_sqlite_blob_op_new (cnc,
SQLITE3_CALL (sqlite3_column_database_name) (ps->sqlite_stmt,
real_col),
SQLITE3_CALL (sqlite3_column_table_name) (ps->sqlite_stmt,
real_col),
SQLITE3_CALL (sqlite3_column_origin_name) (ps->sqlite_stmt,
real_col),
rowid);
}
if (!bop) {
GError *lerror = NULL;
g_set_error (&lerror, GDA_SERVER_PROVIDER_ERROR,
GDA_SERVER_PROVIDER_DATA_ERROR,
"%s", _("Unable to open BLOB"));
gda_row_invalidate_value_e (prow, value, lerror);
}
else {
GdaBlob *blob;
blob = gda_blob_new ();
gda_blob_set_op (blob, bop);
g_object_unref (bop);
gda_value_take_blob (value, blob);
}
}
else if (type == G_TYPE_BOOLEAN)
g_value_set_boolean (value, SQLITE3_CALL (sqlite3_column_int) (ps->sqlite_stmt, real_col) == 0 ? FALSE : TRUE);
else if (type == G_TYPE_DATE) {
GDate date;
if (!gda_parse_iso8601_date (&date,
(gchar *) SQLITE3_CALL (sqlite3_column_text) (ps->sqlite_stmt,
real_col))) {
GError *lerror = NULL;
g_set_error (&lerror, GDA_SERVER_PROVIDER_ERROR,
GDA_SERVER_PROVIDER_DATA_ERROR,
_("Invalid date '%s' (date format should be YYYY-MM-DD)"),
(gchar *) SQLITE3_CALL (sqlite3_column_text) (ps->sqlite_stmt, real_col));
gda_row_invalidate_value_e (prow, value, lerror);
}
else
g_value_set_boxed (value, &date);
}
else if (type == GDA_TYPE_TIME) {
GdaTime timegda;
if (!gda_parse_iso8601_time (&timegda,
(gchar *) SQLITE3_CALL (sqlite3_column_text) (ps->sqlite_stmt,
real_col))) {
GError *lerror = NULL;
g_set_error (&lerror, GDA_SERVER_PROVIDER_ERROR,
GDA_SERVER_PROVIDER_DATA_ERROR,
_("Invalid time '%s' (time format should be HH:MM:SS[.ms])"),
(gchar *) SQLITE3_CALL (sqlite3_column_text) (ps->sqlite_stmt, real_col));
gda_row_invalidate_value_e (prow, value, lerror);
}
else {
if (timegda.timezone == GDA_TIMEZONE_INVALID)
timegda.timezone = 0; /* set to GMT */
gda_value_set_time (value, &timegda);
}
}
else if (type == GDA_TYPE_TIMESTAMP) {
GdaTimestamp timestamp;
if (!gda_parse_iso8601_timestamp (×tamp,
(gchar *) SQLITE3_CALL (sqlite3_column_text) (ps->sqlite_stmt,
real_col))) {
GError *lerror = NULL;
g_set_error (&lerror, GDA_SERVER_PROVIDER_ERROR,
GDA_SERVER_PROVIDER_DATA_ERROR,
_("Invalid timestamp '%s' (format should be YYYY-MM-DD HH:MM:SS[.ms])"),
(gchar *) SQLITE3_CALL (sqlite3_column_text) (ps->sqlite_stmt, real_col));
gda_row_invalidate_value_e (prow, value, lerror);
}
else {
if (timestamp.timezone == GDA_TIMEZONE_INVALID)
timestamp.timezone = 0; /* set to GMT */
gda_value_set_timestamp (value, ×tamp);
}
}
else if (type == G_TYPE_CHAR) {
gint64 i;
i = (gint64) SQLITE3_CALL (sqlite3_column_int64) (ps->sqlite_stmt, real_col);
if ((i > G_MAXINT8) || (i < G_MININT8)) {
GError *lerror = NULL;
g_set_error (&lerror, GDA_SERVER_PROVIDER_ERROR,
GDA_SERVER_PROVIDER_DATA_ERROR,
"%s", _("Integer value is too big"));
gda_row_invalidate_value_e (prow, value, lerror);
}
else
g_value_set_schar (value, (gchar) i);
}
else if (type == G_TYPE_UCHAR) {
gint64 i;
i = (gint64) SQLITE3_CALL (sqlite3_column_int64) (ps->sqlite_stmt, real_col);
if ((i > G_MAXUINT8) || (i < 0)) {
GError *lerror = NULL;
g_set_error (&lerror, GDA_SERVER_PROVIDER_ERROR,
GDA_SERVER_PROVIDER_DATA_ERROR,
"%s", _("Integer value is too big"));
gda_row_invalidate_value_e (prow, value, lerror);
}
else
g_value_set_uchar (value, (guchar) i);
}
else if (type == GDA_TYPE_SHORT) {
gint64 i;
i = (gint64) SQLITE3_CALL (sqlite3_column_int64) (ps->sqlite_stmt, real_col);
if ((i > G_MAXSHORT) || (i < G_MINSHORT)) {
GError *lerror = NULL;
g_set_error (&lerror, GDA_SERVER_PROVIDER_ERROR,
GDA_SERVER_PROVIDER_DATA_ERROR,
"%s", _("Integer value is too big"));
gda_row_invalidate_value_e (prow, value, lerror);
}
else
gda_value_set_short (value, (guchar) i);
}
else if (type == GDA_TYPE_USHORT) {
gint64 i;
i = (gint64) SQLITE3_CALL (sqlite3_column_int64) (ps->sqlite_stmt, real_col);
if ((i > G_MAXUSHORT) || (i < 0)) {
GError *lerror = NULL;
g_set_error (&lerror, GDA_SERVER_PROVIDER_ERROR,
GDA_SERVER_PROVIDER_DATA_ERROR,
"%s", _("Integer value is too big"));
gda_row_invalidate_value_e (prow, value, lerror);
}
else
gda_value_set_ushort (value, (guchar) i);
}
else {
GError *lerror = NULL;
g_set_error (&lerror, GDA_SERVER_PROVIDER_ERROR,
GDA_SERVER_PROVIDER_DATA_ERROR,
"Unhandled type '%s' in SQLite recordset",
gda_g_type_to_string (_GDA_PSTMT (ps)->types [col]));
gda_row_invalidate_value_e (prow, value, lerror);
}
}
}
if (do_store) {
/* insert row */
gda_data_select_take_row (GDA_DATA_SELECT (model), prow, model->priv->next_row_num);
}
model->priv->next_row_num ++;
break;
}
case SQLITE_BUSY:
/* nothing to do */
break;
case SQLITE_DONE:
GDA_DATA_SELECT (model)->advertized_nrows = model->priv->next_row_num;
SQLITE3_CALL (sqlite3_reset) (ps->sqlite_stmt);
break;
case SQLITE_READONLY:
case SQLITE_MISUSE:
g_set_error (error, GDA_SERVER_PROVIDER_ERROR,
GDA_SERVER_PROVIDER_INTERNAL_ERROR,
"%s", _("SQLite provider fatal internal error"));
break;
case SQLITE_ERROR:
default: {
GError *lerror = NULL;
SQLITE3_CALL (sqlite3_reset) (ps->sqlite_stmt);
if (rc == SQLITE_IOERR_TRUNCATE)
g_set_error (&lerror, GDA_DATA_MODEL_ERROR,
GDA_DATA_MODEL_TRUNCATED_ERROR, "%s", _("Truncated data"));
else
g_set_error (&lerror, GDA_SERVER_PROVIDER_ERROR,
GDA_SERVER_PROVIDER_INTERNAL_ERROR,
"%s", SQLITE3_CALL (sqlite3_errmsg) (cdata->connection));
gda_data_select_add_exception (GDA_DATA_SELECT (model), lerror);
if (rc == SQLITE_ERROR)
g_propagate_error (error, g_error_copy (lerror));
GDA_DATA_SELECT (model)->advertized_nrows = model->priv->next_row_num;
break;
}
}
virt_cnc_set_working_obj (gda_data_select_get_connection ((GdaDataSelect*) model), NULL);
return prow;
}
