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//tutorial.cpp
/* Copyright 2009 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 <iostream>
#include "../../client/dbclient.h"
// g++ tutorial.cpp -lmongoclient -lboost_thread -lboost_filesystem -o tutorial
// Might need a variant of the above compile line. This worked for me:
//g++ tutorial.cpp -L[mongo directory] -L/opt/local/lib -lmongoclient -lboost_thread-mt -lboost_filesystem -lboost_system -I/opt/local/include -o tutorial
using namespace mongo;
void printIfAge(DBClientConnection& c, int age) {
auto_ptr<DBClientCursor> cursor = c.query("tutorial.persons", QUERY( "age" << age ).sort("name") );
while( cursor->more() ) {
BSONObj p = cursor->next();
cout << p.getStringField("name") << endl;
}
}
void run() {
DBClientConnection c;
c.connect("localhost"); //"192.168.58.1");
cout << "connected ok" << endl;
BSONObj p = BSON( "name" << "Joe" << "age" << 33 );
c.insert("tutorial.persons", p);
p = BSON( "name" << "Jane" << "age" << 40 );
c.insert("tutorial.persons", p);
p = BSON( "name" << "Abe" << "age" << 33 );
c.insert("tutorial.persons", p);
p = BSON( "name" << "Methuselah" << "age" << BSONNULL);
c.insert("tutorial.persons", p);
p = BSON( "name" << "Samantha" << "age" << 21 << "city" << "Los Angeles" << "state" << "CA" );
c.insert("tutorial.persons", p);
c.ensureIndex("tutorial.persons", fromjson("{age:1}"));
cout << "count:" << c.count("tutorial.persons") << endl;
auto_ptr<DBClientCursor> cursor = c.query("tutorial.persons", BSONObj());
while( cursor->more() ) {
cout << cursor->next().toString() << endl;
}
cout << "\nprintifage:\n";
printIfAge(c, 33);
}
int main() {
try {
run();
}
catch( DBException &e ) {
cout << "caught " << e.what() << endl;
}
return 0;
}
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