extconfig: Allow explicit DB result set ordering to be disabled.
Added a new boolean configuration flag - `order_multi_row_results_by_initial_column` - to both res_pgsql.conf and res_config_odbc.conf that allows the administrator to disable the explicit `ORDER BY` that was previously being added to all generated SQL statements that returned multiple rows. Fixes: #179
This commit is contained in:
parent
6209d47b44
commit
0bb192831c
|
@ -0,0 +1,14 @@
|
|||
;
|
||||
; Sample configuration for res_config_odbc
|
||||
;
|
||||
; Most configuration occurs in the system ODBC configuration files,
|
||||
; res_odbc.conf, and extconfig.conf. You only need this file in the
|
||||
; event that you want to influence default sorting behavior.
|
||||
;
|
||||
|
||||
[general]
|
||||
; When multiple rows are requested by realtime, res_config_odbc will add an
|
||||
; explicit ORDER BY clause to the generated SELECT statement. To prevent
|
||||
; that from occuring, set order_multi_row_results_by_initial_column to 'no'.
|
||||
;
|
||||
;order_multi_row_results_by_initial_column=no
|
|
@ -28,3 +28,9 @@ dbpass=password
|
|||
; createchar - Create char columns only
|
||||
;
|
||||
requirements=warn
|
||||
|
||||
; When multiple rows are requested by realtime, res_config_pgsql will add an
|
||||
; explicit ORDER BY clause to the generated SELECT statement. To prevent
|
||||
; that from occuring, set order_multi_row_results_by_initial_column to 'no'.
|
||||
;
|
||||
;order_multi_row_results_by_initial_column=no
|
||||
|
|
|
@ -49,6 +49,9 @@
|
|||
/*! Initial SQL query buffer size to allocate. */
|
||||
#define SQL_BUF_SIZE 1024
|
||||
|
||||
static const char *res_config_odbc_conf = "res_config_odbc.conf";
|
||||
static int order_multi_row_results_by_initial_column = 1;
|
||||
|
||||
AST_THREADSTORAGE(sql_buf);
|
||||
AST_THREADSTORAGE(rowdata_buf);
|
||||
|
||||
|
@ -388,7 +391,10 @@ static struct ast_config *realtime_multi_odbc(const char *database, const char *
|
|||
ast_str_append(&sql, 0, " AND %s%s ?%s", field->name, op,
|
||||
strcasestr(field->name, "LIKE") && !ast_odbc_backslash_is_escape(obj) ? " ESCAPE '\\\\'" : "");
|
||||
}
|
||||
ast_str_append(&sql, 0, " ORDER BY %s", initfield);
|
||||
|
||||
if (order_multi_row_results_by_initial_column) {
|
||||
ast_str_append(&sql, 0, " ORDER BY %s", initfield);
|
||||
}
|
||||
|
||||
cps.sql = ast_str_buffer(sql);
|
||||
|
||||
|
@ -954,7 +960,7 @@ static struct ast_config *config_odbc(const char *database, const char *table, c
|
|||
|
||||
memset(&q, 0, sizeof(q));
|
||||
|
||||
if (!file || !strcmp (file, "res_config_odbc.conf") || !sql) {
|
||||
if (!file || !strcmp (file, res_config_odbc_conf) || !sql) {
|
||||
return NULL; /* cant configure myself with myself ! */
|
||||
}
|
||||
|
||||
|
@ -1248,22 +1254,46 @@ static struct ast_config_engine odbc_engine = {
|
|||
.unload_func = unload_odbc,
|
||||
};
|
||||
|
||||
static int unload_module (void)
|
||||
static void load_config(const char *filename)
|
||||
{
|
||||
ast_config_engine_deregister(&odbc_engine);
|
||||
struct ast_config *config;
|
||||
struct ast_flags config_flags = { 0 };
|
||||
const char *s;
|
||||
|
||||
return 0;
|
||||
config = ast_config_load(filename, config_flags);
|
||||
if (config == CONFIG_STATUS_FILEMISSING || config == CONFIG_STATUS_FILEINVALID) {
|
||||
if (config == CONFIG_STATUS_FILEINVALID) {
|
||||
ast_log(LOG_WARNING, "Unable to load config '%s'. Using defaults.\n", filename);
|
||||
}
|
||||
order_multi_row_results_by_initial_column = 1;
|
||||
return;
|
||||
}
|
||||
|
||||
/* Result set ordering is enabled by default */
|
||||
s = ast_variable_retrieve(config, "general", "order_multi_row_results_by_initial_column");
|
||||
order_multi_row_results_by_initial_column = !s || ast_true(s);
|
||||
|
||||
ast_config_destroy(config);
|
||||
}
|
||||
|
||||
static int load_module (void)
|
||||
static int load_module(void)
|
||||
{
|
||||
/* We'll either successfully load the configuration or fail with reasonable
|
||||
* defaults */
|
||||
load_config(res_config_odbc_conf);
|
||||
ast_config_engine_register(&odbc_engine);
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
static int reload_module(void)
|
||||
{
|
||||
load_config(res_config_odbc_conf);
|
||||
return 0;
|
||||
}
|
||||
|
||||
static int unload_module(void)
|
||||
{
|
||||
ast_config_engine_deregister(&odbc_engine);
|
||||
return 0;
|
||||
}
|
||||
|
||||
|
|
|
@ -82,6 +82,7 @@ static char dbappname[MAX_DB_OPTION_SIZE] = "";
|
|||
static char dbsock[MAX_DB_OPTION_SIZE] = "";
|
||||
static int dbport = 5432;
|
||||
static time_t connect_time = 0;
|
||||
static int order_multi_row_results_by_initial_column = 1;
|
||||
|
||||
static int parse_config(int reload);
|
||||
static int pgsql_reconnect(const char *database);
|
||||
|
@ -624,7 +625,7 @@ static struct ast_config *realtime_multi_pgsql(const char *database, const char
|
|||
ast_str_append(&sql, 0, " AND %s%s '%s'%s", field->name, op, ast_str_buffer(escapebuf), escape);
|
||||
}
|
||||
|
||||
if (initfield) {
|
||||
if (initfield && order_multi_row_results_by_initial_column) {
|
||||
ast_str_append(&sql, 0, " ORDER BY %s", initfield);
|
||||
}
|
||||
|
||||
|
@ -1524,6 +1525,10 @@ static int parse_config(int is_reload)
|
|||
requirements = RQ_CREATECHAR;
|
||||
}
|
||||
|
||||
/* Result set ordering is enabled by default */
|
||||
s = ast_variable_retrieve(config, "general", "order_multi_row_results_by_initial_column");
|
||||
order_multi_row_results_by_initial_column = !s || ast_true(s);
|
||||
|
||||
ast_config_destroy(config);
|
||||
|
||||
if (DEBUG_ATLEAST(1)) {
|
||||
|
|
Loading…
Reference in New Issue