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mod_spidermonkey_core_db: Allow to bind value to parameters in prepared statements (MODLANG-139) 

git-svn-id: http://svn.freeswitch.org/svn/freeswitch/trunk@15632 d0543943-73ff-0310-b7d9-9358b9ac24b2
This commit is contained in:
Michael Jerris 2009-11-23 22:05:59 +00:00
parent b75f6bc22d
commit fa29ea1545
1 changed files with 126 additions and 3 deletions
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129
src/mod/languages/mod_spidermonkey_core_db/mod_spidermonkey_core_db.c
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@ -168,7 +168,11 @@ static JSBool db_exec(JSContext * cx, JSObject * obj, uintN argc, jsval * argv,
}
static JSBool db_next(JSContext * cx, JSObject * obj, uintN argc, jsval * argv, jsval * rval)
/* Evaluate a prepared statement
stepSuccessCode expected success code from switch_core_db_step()
return true if step return expected success code, false otherwise
*/
static JSBool db_step_ex(JSContext * cx, JSObject * obj, uintN argc, jsval * argv, jsval * rval, int stepSuccessCode)
{
struct db_obj *dbo = JS_GetPrivate(cx, obj);
*rval = BOOLEAN_TO_JSVAL(JS_FALSE);
@ -181,14 +185,17 @@ static JSBool db_next(JSContext * cx, JSObject * obj, uintN argc, jsval * argv,
int running = 1;
while (running < 5000) {
int result = switch_core_db_step(dbo->stmt);
if (result == SWITCH_CORE_DB_ROW) {
if (result == stepSuccessCode) {
*rval = BOOLEAN_TO_JSVAL(JS_TRUE);
break;
} else if (result == SWITCH_CORE_DB_BUSY) {
running++;
switch_cond_next(); /* wait a bit before retrying */
continue;
}
switch_core_db_finalize(dbo->stmt);
if (switch_core_db_finalize(dbo->stmt) != SWITCH_CORE_DB_OK) {
switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_ERROR, "Error %s\n", switch_core_db_errmsg(dbo->db));
}
dbo->stmt = NULL;
break;
}
@ -197,6 +204,25 @@ static JSBool db_next(JSContext * cx, JSObject * obj, uintN argc, jsval * argv,
return JS_TRUE;
}
/* Evaluate a prepared statement, to be used with statements that return data
return true while data is available, false when done or error
*/
static JSBool db_next(JSContext * cx, JSObject * obj, uintN argc, jsval * argv, jsval * rval)
{
/* return true until no more rows available */
return db_step_ex(cx, obj, argc, argv, rval, SWITCH_CORE_DB_ROW);
}
/* Evaluate a prepared statement, to be used with statements that return no data
return true if statement has finished executing successfully, false otherwise
*/
static JSBool db_step(JSContext * cx, JSObject * obj, uintN argc, jsval * argv, jsval * rval)
{
/* return true when the statement has finished executing successfully */
return db_step_ex(cx, obj, argc, argv, rval, SWITCH_CORE_DB_DONE);
}
static JSBool db_fetch(JSContext * cx, JSObject * obj, uintN argc, jsval * argv, jsval * rval)
{
struct db_obj *dbo = JS_GetPrivate(cx, obj);
@ -258,6 +284,100 @@ static JSBool db_prepare(JSContext * cx, JSObject * obj, uintN argc, jsval * arg
return JS_TRUE;
}
static JSBool db_bind_text(JSContext * cx, JSObject * obj, uintN argc, jsval * argv, jsval * rval)
{
struct db_obj *dbo = JS_GetPrivate(cx, obj);
JSBool status;
*rval = BOOLEAN_TO_JSVAL(JS_FALSE);
if (!dbo->db) {
return JS_FALSE;
}
/* db_prepare() must be called first */
if (!dbo->stmt) {
return JS_FALSE;
}
/* argv[0] = parameter index
argv[1] = parameter value
*/
if (argc < 2) {
return JS_FALSE;
}
uint32 param_index = -1;
char *param_value = NULL;
/* convert args */
status = JS_ValueToECMAUint32(cx, argv[0], &param_index);
switch_assert(status == JS_TRUE);
param_value = JS_GetStringBytes(JS_ValueToString(cx, argv[1]));
if ((param_index < 1) || (NULL == param_value)) {
return JS_FALSE;
}
/* bind param */
if (switch_core_db_bind_text(dbo->stmt, param_index, param_value, -1, SWITCH_CORE_DB_STATIC)) {
switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_ERROR, "Error %s\n", switch_core_db_errmsg(dbo->db));
return JS_FALSE;
} else {
*rval = BOOLEAN_TO_JSVAL(JS_TRUE);
}
return JS_TRUE;
}
static JSBool db_bind_int(JSContext * cx, JSObject * obj, uintN argc, jsval * argv, jsval * rval)
{
struct db_obj *dbo = JS_GetPrivate(cx, obj);
JSBool status;
*rval = BOOLEAN_TO_JSVAL(JS_FALSE);
if (!dbo->db) {
return JS_FALSE;
}
/* db_prepare() must be called first */
if (!dbo->stmt) {
return JS_FALSE;
}
/* argv[0] = parameter index
argv[1] = parameter value
*/
if (argc < 2) {
return JS_FALSE;
}
uint32 param_index = -1;
uint32 param_value = -1;
/* convert args */
status = JS_ValueToECMAUint32(cx, argv[0], &param_index);
switch_assert(status == JS_TRUE);
status = JS_ValueToECMAUint32(cx, argv[1], &param_value);
switch_assert(status == JS_TRUE);
if (param_index < 1) {
return JS_FALSE;
}
/* bind param */
if (switch_core_db_bind_int(dbo->stmt, param_index, param_value)) {
switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_ERROR, "Error %s\n", switch_core_db_errmsg(dbo->db));
return JS_FALSE;
} else {
*rval = BOOLEAN_TO_JSVAL(JS_TRUE);
}
return JS_TRUE;
}
enum db_tinyid {
DB_NAME
};
@ -266,8 +386,11 @@ static JSFunctionSpec db_methods[] = {
{"exec", db_exec, 1},
{"close", db_close, 0},
{"next", db_next, 0},
{"step", db_step, 0},
{"fetch", db_fetch, 1},
{"prepare", db_prepare, 0},
{"bindText", db_bind_text, 2},
{"bindInt", db_bind_int, 2},
{0}
};