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added sqlite query result and enhanced column generator and value extractor

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sascha
2023-11-14 20:21:51 +01:00
parent 4ed01a617d
commit d76ac60278
44 changed files with 1052 additions and 192 deletions
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backends/sqlite/include/sqlite_connection.hpp
+6 -1
View File
@@ -26,9 +26,14 @@ public:
void close() override;
bool is_open() override;
void execute(const std::string &stmt) override;
std::unique_ptr<sql::query_result_impl> fetch(const std::string &stmt) override;
void prepare(const std::string &stmt) override;
size_t execute(const std::string &stmt) override;
private:
static int parse_result(void* param, int column_count, char** values, char** columns);
private:
sqlite3 *sqlite_db_{};
};
backends/sqlite/include/sqlite_query_result.hpp
+37 -1
View File
@@ -1,10 +1,46 @@
#ifndef QUERY_SQLITE_QUERY_RESULT_HPP
#define QUERY_SQLITE_QUERY_RESULT_HPP
#include "matador/sql/query_result_impl.hpp"
#include <vector>
namespace matador::backends::sqlite {
class sqlite_query_result {
class sqlite_query_result : public sql::query_result_impl {
public:
void read_value(const char *id, size_t index, char &value) override;
void read_value(const char *id, size_t index, short &value) override;
void read_value(const char *id, size_t index, int &value) override;
void read_value(const char *id, size_t index, long &value) override;
void read_value(const char *id, size_t index, long long int &value) override;
void read_value(const char *id, size_t index, unsigned char &value) override;
void read_value(const char *id, size_t index, unsigned short &value) override;
void read_value(const char *id, size_t index, unsigned int &value) override;
void read_value(const char *id, size_t index, unsigned long &value) override;
void read_value(const char *id, size_t index, unsigned long long int &value) override;
void read_value(const char *id, size_t index, bool &value) override;
void read_value(const char *id, size_t index, float &value) override;
void read_value(const char *id, size_t index, double &value) override;
void read_value(const char *id, size_t index, char *value, size_t size) override;
void read_value(const char *id, size_t index, std::string &value) override;
void read_value(const char *id, size_t index, std::string &value, size_t s) override;
protected:
[[nodiscard]] bool next_row() override;
private:
friend class sqlite_connection;
private:
void push_back(char **row_values, int column_count);
private:
using columns = std::vector<char*>;
using rows = std::vector<columns>;
rows result_;
size_t row_index_ = 0;
};