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Use addNewDocument when possible, add sample for ensureIndex

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This commit is contained in:
fbraem 2013-02-22 19:30:14 +01:00
parent 60afc2dbd0
commit 99cd51d727
1 changed files with 32 additions and 12 deletions
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44
MongoDB/samples/SQLToMongo/src/main.cpp
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@ -170,13 +170,8 @@ void sample5(Poco::MongoDB::Connection& connection)
Poco::MongoDB::Cursor cursor("sample", "players"); Poco::MongoDB::Cursor cursor("sample", "players");
// When orderby is needed, use 2 separate documents in the query selector // When orderby is needed, use 2 separate documents in the query selector
Poco::MongoDB::Document::Ptr query = new Poco::MongoDB::Document(); cursor.query().selector().addNewDocument("$query").add("birthyear", 1987);
query->add("birthyear", 1987); cursor.query().selector().addNewDocument("$orderby").add("lastname", 0);
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); Poco::MongoDB::ResponseMessage& response = cursor.next(connection);
while(1) while(1)
@ -205,11 +200,9 @@ void sample6(Poco::MongoDB::Connection& connection)
Poco::MongoDB::Cursor cursor("sample", "players"); Poco::MongoDB::Cursor cursor("sample", "players");
Poco::MongoDB::Document::Ptr oper = new Poco::MongoDB::Document(); cursor.query().selector().addNewDocument("birthyear")
oper->add("$gt", 1969); .add("$gt", 1969)
oper->add("$lte", 1980); .add("$lte", 1980);
cursor.query().selector().add("birthyear", oper);
Poco::MongoDB::ResponseMessage& response = cursor.next(connection); Poco::MongoDB::ResponseMessage& response = cursor.next(connection);
while(1) while(1)
@ -231,6 +224,32 @@ void sample6(Poco::MongoDB::Connection& connection)
} }
// CREATE INDEX playername
// ON players(lastname)
void sample7(Poco::MongoDB::Connection& connection)
{
std::cout << "*** SAMPLE 7 ***" << std::endl;
Poco::MongoDB::Database db("sample");
Poco::MongoDB::Document::Ptr keys = new Poco::MongoDB::Document();
keys->add("lastname", 1);
Poco::MongoDB::Document::Ptr errorDoc = db.ensureIndex(connection, "players", "lastname", keys);
/* Sample above is the same as the following code:
Poco::MongoDB::Document::Ptr index = new Poco::MongoDB::Document();
index->add("ns", "sample.players");
index->add("name", "lastname");
index->addNewDocument("key").add("lastname", 1);
Poco::SharedPtr<Poco::MongoDB::InsertRequest> insertRequest = db.createInsertRequest("system.indexes");
insertRequest->documents().push_back(index);
connection.sendRequest(*insertRequest);
Poco::MongoDB::Document::Ptr errorDoc = db.getLastErrorDoc(connection);
*/
std::cout << errorDoc->toString(2);
}
int main(int argc, char** argv) int main(int argc, char** argv)
{ {
Poco::MongoDB::Connection connection("localhost", 27017); Poco::MongoDB::Connection connection("localhost", 27017);
@ -240,6 +259,7 @@ int main(int argc, char** argv)
sample4(connection); sample4(connection);
sample5(connection); sample5(connection);
sample6(connection); sample6(connection);
sample7(connection);
return 0; return 0;
} }