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Add more samples

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This commit is contained in:
fbraem 2013-02-20 22:21:26 +01:00
parent e79f75d9fe
commit 7600eed502
1 changed files with 137 additions and 15 deletions
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152
MongoDB/samples/SQLToMongo/src/main.cpp
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@ -37,19 +37,41 @@
#include "Poco/MongoDB/Database.h"
#include "Poco/MongoDB/Cursor.h"
// INSERT INTO USERS
// VALUES( "Braem", 33)
// INSERT INTO players
// VALUES( "Messi", "Lionel", 1987)
void sample1(Poco::MongoDB::Connection& connection)
{
std::cout << "*** SAMPLE 1 ***" << std::endl;
Poco::MongoDB::Database db("mydb");
Poco::MongoDB::Database db("sample");
Poco::SharedPtr<Poco::MongoDB::InsertRequest> insertUserRequest = db.createInsertRequest("players");
// With one insert request, we can add multiple documents
Poco::MongoDB::Document::Ptr player = new Poco::MongoDB::Document();
player->add("lastname", "Messi");
player->add("firstname", "Lionel");
player->add("birthyear", 1987);
insertUserRequest->documents().push_back(player);
player = new Poco::MongoDB::Document();
player->add("lastname", "Valdes");
player->add("firstname", "Victor");
player->add("birthyear", 1982);
insertUserRequest->documents().push_back(player);
player = new Poco::MongoDB::Document();
player->add("lastname", "Puyol");
player->add("firstname", "Carles");
player->add("birthyear", 1978);
insertUserRequest->documents().push_back(player);
player = new Poco::MongoDB::Document();
player->add("lastname", "Piqué");
player->add("firstname", "Gerard");
player->add("birthyear", 1987);
insertUserRequest->documents().push_back(player);
Poco::SharedPtr<Poco::MongoDB::InsertRequest> insertUserRequest = db.createInsertRequest("users");
Poco::MongoDB::Document::Ptr user = new Poco::MongoDB::Document();
user->add("lastname", std::string("Braem"));
user->add("age", 33);
insertUserRequest->documents().push_back(user);
connection.sendRequest(*insertUserRequest);
std::string lastError = db.getLastError(connection);
if ( !lastError.empty() )
@ -58,22 +80,22 @@ void sample1(Poco::MongoDB::Connection& connection)
}
}
// SELECT lastname, age FROM users
// SELECT lastname, birthyear FROM players
void sample2(Poco::MongoDB::Connection& connection)
{
std::cout << "*** SAMPLE 2 ***" << std::endl;
Poco::MongoDB::Cursor cursor("mydb", "users");
Poco::MongoDB::Cursor cursor("sample", "players");
// Selecting fields is done by adding them to the returnFieldSelector
// Use 1 as value of the element.
cursor.query().returnFieldSelector().add("lastname", 1);
cursor.query().returnFieldSelector().add("age", 1);
cursor.query().returnFieldSelector().add("birthyear", 1);
Poco::MongoDB::ResponseMessage& response = cursor.next(connection);
while(1)
{
for(Poco::MongoDB::Document::Vector::const_iterator it = response.documents().begin(); it != response.documents().end(); ++it)
{
std::cout << "LastName: " << (*it)->get<std::string>("lastname") << " Age: " << (*it)->get<int>("age") << std::endl;
std::cout << (*it)->get<std::string>("lastname") << " (" << (*it)->get<int>("birthyear") << ')' << std::endl;
}
// When the cursorID is 0, there are no documents left, so break out ...
@ -87,18 +109,18 @@ void sample2(Poco::MongoDB::Connection& connection)
}
}
// SELECT * FROM users
// SELECT * FROM players
void sample3(Poco::MongoDB::Connection& connection)
{
std::cout << "*** SAMPLE 3 ***" << std::endl;
Poco::MongoDB::Cursor cursor("mydb", "users");
Poco::MongoDB::Cursor cursor("sample", "players");
Poco::MongoDB::ResponseMessage& response = cursor.next(connection);
while(1)
{
for(Poco::MongoDB::Document::Vector::const_iterator it = response.documents().begin(); it != response.documents().end(); ++it)
{
std::cout << "LastName: " << (*it)->get<std::string>("lastname") << " Age: " << (*it)->get<int>("age") << std::endl;
std::cout << (*it)->get<std::string>("lastname") << ' ' << (*it)->get<std::string>("firstname") << " (" << (*it)->get<int>("birthyear") << ')' << std::endl;
}
// When the cursorID is 0, there are no documents left, so break out ...
@ -112,12 +134,112 @@ void sample3(Poco::MongoDB::Connection& connection)
};
}
// SELECT * FROM players WHERE birthyear = 1978
void sample4(Poco::MongoDB::Connection& connection)
{
std::cout << "*** SAMPLE 4 ***" << std::endl;
Poco::MongoDB::Cursor cursor("sample", "players");
cursor.query().selector().add("birthyear", 1978);
Poco::MongoDB::ResponseMessage& response = cursor.next(connection);
while(1)
{
for(Poco::MongoDB::Document::Vector::const_iterator it = response.documents().begin(); it != response.documents().end(); ++it)
{
std::cout << (*it)->get<std::string>("lastname") << ' ' << (*it)->get<std::string>("firstname") << " (" << (*it)->get<int>("birthyear") << ')' << std::endl;
}
// When the cursorID is 0, there are no documents left, so break out ...
if ( response.cursorID() == 0 )
{
break;
}
// Get the next bunch of documents
response = cursor.next(connection);
};
}
// SELECT * FROM players WHERE birthyear = 1987 ORDER BY name
void sample5(Poco::MongoDB::Connection& connection)
{
std::cout << "*** SAMPLE 5 ***" << std::endl;
Poco::MongoDB::Cursor cursor("sample", "players");
// When orderby is needed, use 2 separate documents in the query selector
Poco::MongoDB::Document::Ptr query = new Poco::MongoDB::Document();
query->add("birthyear", 1987);
cursor.query().selector().add("$query", query);
Poco::MongoDB::Document::Ptr order = new Poco::MongoDB::Document();
order->add("lastname", 0);
cursor.query().selector().add("$orderby", order);
Poco::MongoDB::ResponseMessage& response = cursor.next(connection);
while(1)
{
for(Poco::MongoDB::Document::Vector::const_iterator it = response.documents().begin(); it != response.documents().end(); ++it)
{
std::cout << (*it)->get<std::string>("lastname") << ' ' << (*it)->get<std::string>("firstname") << " (" << (*it)->get<int>("birthyear") << ')' << std::endl;
}
// When the cursorID is 0, there are no documents left, so break out ...
if ( response.cursorID() == 0 )
{
break;
}
// Get the next bunch of documents
response = cursor.next(connection);
};
}
// SELECT * FROM players WHERE birthyear > 1969 and birthyear <= 1980
void sample6(Poco::MongoDB::Connection& connection)
{
std::cout << "*** SAMPLE 6 ***" << std::endl;
Poco::MongoDB::Cursor cursor("sample", "players");
Poco::MongoDB::Document::Ptr oper = new Poco::MongoDB::Document();
oper->add("$gt", 1969);
oper->add("$lte", 1980);
cursor.query().selector().add("birthyear", oper);
Poco::MongoDB::ResponseMessage& response = cursor.next(connection);
while(1)
{
for(Poco::MongoDB::Document::Vector::const_iterator it = response.documents().begin(); it != response.documents().end(); ++it)
{
std::cout << (*it)->get<std::string>("lastname") << ' ' << (*it)->get<std::string>("firstname") << " (" << (*it)->get<int>("birthyear") << ')' << std::endl;
}
// When the cursorID is 0, there are no documents left, so break out ...
if ( response.cursorID() == 0 )
{
break;
}
// Get the next bunch of documents
response = cursor.next(connection);
};
}
int main(int argc, char** argv)
{
Poco::MongoDB::Connection connection("localhost", 27017);
sample1(connection);
sample2(connection);
sample3(connection);
sample4(connection);
sample5(connection);
sample6(connection);
return 0;
}