fo::QueryResult Class Reference

Wrapper for DB result. More...

#include <libfossdbQueryResult.hpp>

Collaboration diagram for fo::QueryResult:

Public Member Functions
	QueryResult (QueryResult &&o)
bool	isFailed () const
	Check if the query failed. More...
	operator bool () const
int	getRowCount () const
std::vector< std::string >	getRow (int i) const
template<typename T >
std::vector< T >	getSimpleResults (int columnN, T(functionP)(const char *)) const
	Get vector of a single column from query result. More...

Private Member Functions
	QueryResult (PGresult *ptr)

Private Attributes
unptr::unique_ptr< PGresult, PGresultDeleter >	ptr
	Unique pointer to the actual PGresult.

Friends
class	DbManager
class	AgentDatabaseHandler

Detailed Description

Wrapper for DB result.

Definition at line 55 of file libfossdbQueryResult.hpp.

Constructor & Destructor Documentation

QueryResult::QueryResult ( PGresult *  pgResult )

private

Constructor for QueryResult

Parameters

pgResult

Postgres query result object

Definition at line 34 of file libfossdbQueryResult.cc.

Member Function Documentation

std::vector< std::string > QueryResult::getRow

(

int

i

)

const

Get all columns from required row as a string vector

Parameters

i	The row to be fetched

Returns

String vector with each column as new element

Definition at line 64 of file libfossdbQueryResult.cc.

int QueryResult::getRowCount

(

)

const

Check the row count in the query result

Returns

Row count if result exists, -1 otherwise

Definition at line 51 of file libfossdbQueryResult.cc.

template<typename T >

std::vector< T > fo::QueryResult::getSimpleResults	(	int	columnN,
		T(functionP)(const char *)
	)		const

Get vector of a single column from query result.

Get a single column's values as a vector of type T (defined by functionP param). The values will be translated using the functionP.

Parameters

columnN	Position of the required column
functionP	Function to translate the string result in desired format

Returns

Vector with translated values of a single column

Definition at line 98 of file libfossdbQueryResult.hpp.

bool QueryResult::isFailed

(

)

const

Check if the query failed.

Check if the query is failed by checking the Postgres object for NULL

Returns

True if failed, false on success.

Definition at line 43 of file libfossdbQueryResult.cc.

fo::QueryResult::operator bool ( ) const

inline

Check if the query result failed

Returns

True if failed, false on success.

See also

fo::QueryResult::isFailed()

Definition at line 73 of file libfossdbQueryResult.hpp.

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The documentation for this class was generated from the following files:

• src/lib/cpp/libfossdbQueryResult.hpp
• src/lib/cpp/libfossdbQueryResult.cc