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68 lines
2.0 KiB
C++
68 lines
2.0 KiB
C++
//tutorial.cpp
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/* Copyright 2009 10gen Inc.
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#include <iostream>
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#include "../../client/dbclient.h"
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// g++ tutorial.cpp -lmongoclient -lboost_thread -lboost_filesystem -o tutorial
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using namespace mongo;
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void printIfAge(DBClientConnection& c, int age) {
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auto_ptr<DBClientCursor> cursor = c.query("tutorial.persons", QUERY( "age" << age ).sort("name") );
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while( cursor->more() ) {
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BSONObj p = cursor->next();
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cout << p.getStringField("name") << endl;
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}
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}
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void run() {
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DBClientConnection c;
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c.connect("localhost"); //"192.168.58.1");
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cout << "connected ok" << endl;
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BSONObj p = BSON( "name" << "Joe" << "age" << 33 );
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c.insert("tutorial.persons", p);
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p = BSON( "name" << "Jane" << "age" << 40 );
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c.insert("tutorial.persons", p);
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p = BSON( "name" << "Abe" << "age" << 33 );
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c.insert("tutorial.persons", p);
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p = BSON( "name" << "Samantha" << "age" << 21 << "city" << "Los Angeles" << "state" << "CA" );
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c.insert("tutorial.persons", p);
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c.ensureIndex("tutorial.persons", fromjson("{age:1}"));
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cout << "count:" << c.count("tutorial.persons") << endl;
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auto_ptr<DBClientCursor> cursor = c.query("tutorial.persons", BSONObj());
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while( cursor->more() ) {
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cout << cursor->next().toString() << endl;
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}
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cout << "\nprintifage:\n";
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printIfAge(c, 33);
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}
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int main() {
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try {
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run();
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}
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catch( DBException &e ) {
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cout << "caught " << e.what() << endl;
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}
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return 0;
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}
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