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/**
* Copyright 2009-2013 10gen, Inc.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#include <php.h>
#include <zend_exceptions.h>
#include "../php_mongo.h"
#include "../mongoclient.h"
#include "../db.h"
#include "../collection.h"
extern zend_class_entry *mongo_ce_DB, *mongo_ce_Exception;
zend_class_entry *mongo_ce_DBRef = NULL;
/* {{{ MongoDBRef::create()
*
* DB refs are of the form:
* array( '$ref' => <collection>, '$id' => <id>[, $db => <dbname>] ) */
PHP_METHOD(MongoDBRef, create)
{
zval *zns, *zid, *zdb = 0;
if (zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "zz|z", &zns, &zid, &zdb) == FAILURE) {
return;
}
array_init(return_value);
/* add collection name */
convert_to_string(zns);
add_assoc_zval(return_value, "$ref", zns);
zval_add_ref(&zns);
/* add id field */
add_assoc_zval(return_value, "$id", zid);
zval_add_ref(&zid);
/* if we got a database name, add that, too */
if (zdb) {
convert_to_string(zdb);
add_assoc_zval(return_value, "$db", zdb);
zval_add_ref(&zdb);
}
}
/* }}} */
/* {{{ proto bool MongoDBRef::isRef(mixed ref)
Checks if $ref has a $ref and $id property/key */
PHP_METHOD(MongoDBRef, isRef)
{
zval *ref;
if (zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "z", &ref) == FAILURE) {
return;
}
if (IS_SCALAR_P(ref)) {
RETURN_FALSE;
}
/* check that $ref and $id fields exists */
if (zend_hash_exists(HASH_P(ref), "$ref", strlen("$ref") + 1) && zend_hash_exists(HASH_P(ref), "$id", strlen("$id") + 1)) {
/* good enough */
RETURN_TRUE;
}
RETURN_FALSE;
}
/* }}} */
/* {{{ MongoDBRef::get()
*/
PHP_METHOD(MongoDBRef, get)
{
zval *zdb, *ref, *collection, *query;
zval **ns, **id, **dbname;
zend_bool alloced_db = 0;
mongo_db *db;
if (zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "Oz", &zdb, mongo_ce_DB, &ref) == FAILURE) {
return;
}
PHP_MONGO_GET_DB(zdb);
if (
IS_SCALAR_P(ref) ||
zend_hash_find(HASH_P(ref), "$ref", strlen("$ref") + 1, (void**)&ns) == FAILURE ||
zend_hash_find(HASH_P(ref), "$id", strlen("$id") + 1, (void**)&id) == FAILURE
) {
RETURN_NULL();
}
if (Z_TYPE_PP(ns) != IS_STRING) {
zend_throw_exception(mongo_ce_Exception, "MongoDBRef::get: $ref field must be a string", 10 TSRMLS_CC);
return;
}
/* if this reference contains a db name, we have to switch dbs */
if (zend_hash_find(HASH_P(ref), "$db", strlen("$db") + 1, (void**)&dbname) == SUCCESS) {
/* just to be paranoid, make sure dbname is a string */
if (Z_TYPE_PP(dbname) != IS_STRING) {
zend_throw_exception(mongo_ce_Exception, "MongoDBRef::get: $db field must be a string", 11 TSRMLS_CC);
return;
}
/* if the name in the $db field doesn't match the current db, make up
* a new db */
if (strcmp(Z_STRVAL_PP(dbname), Z_STRVAL_P(db->name)) != 0) {
zval *new_db_z;
MAKE_STD_ZVAL(new_db_z);
ZVAL_NULL(new_db_z);
MONGO_METHOD1(MongoClient, selectDB, new_db_z, db->link, *dbname);
/* make the new db the current one */
zdb = new_db_z;
/* so we can dtor this later */
alloced_db = 1;
}
}
/* get the collection */
MAKE_STD_ZVAL(collection);
MONGO_METHOD1(MongoDB, selectCollection, collection, zdb, *ns);
/* query for the $id */
MAKE_STD_ZVAL(query);
array_init(query);
add_assoc_zval(query, "_id", *id);
zval_add_ref(id);
/* return whatever's there */
MONGO_METHOD1(MongoCollection, findOne, return_value, collection, query);
/* cleanup */
zval_ptr_dtor(&collection);
zval_ptr_dtor(&query);
if (alloced_db) {
zval_ptr_dtor(&zdb);
}
}
/* }}} */
static zend_function_entry MongoDBRef_methods[] = {
PHP_ME(MongoDBRef, create, NULL, ZEND_ACC_PUBLIC|ZEND_ACC_STATIC)
PHP_ME(MongoDBRef, isRef, NULL, ZEND_ACC_PUBLIC|ZEND_ACC_STATIC)
PHP_ME(MongoDBRef, get, NULL, ZEND_ACC_PUBLIC|ZEND_ACC_STATIC)
{ NULL, NULL, NULL }
};
void mongo_init_MongoDBRef(TSRMLS_D)
{
zend_class_entry ce;
INIT_CLASS_ENTRY(ce, "MongoDBRef", MongoDBRef_methods);
mongo_ce_DBRef = zend_register_internal_class(&ce TSRMLS_CC);
zend_declare_property_string(mongo_ce_DBRef, "refKey", strlen("refKey"), "$ref", ZEND_ACC_PROTECTED|ZEND_ACC_STATIC TSRMLS_CC);
zend_declare_property_string(mongo_ce_DBRef, "idKey", strlen("idKey"), "$id", ZEND_ACC_PROTECTED|ZEND_ACC_STATIC TSRMLS_CC);
}
/*
* Local variables:
* tab-width: 4
* c-basic-offset: 4
* End:
* vim600: fdm=marker
* vim: noet sw=4 ts=4
*/
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