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implemented prepared statement for postgres and sqlite

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sascha
2023-12-09 11:08:03 +01:00
parent 8ba70cc79e
commit da423ea8bb
59 changed files with 1769 additions and 314 deletions
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backends/sqlite/src/sqlite_connection.cpp
+19 -13
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@@ -1,6 +1,7 @@
#include "sqlite_connection.hpp"
#include "sqlite_error.hpp"
#include "sqlite_result_reader.hpp"
#include "sqlite_statement.hpp"
#include "matador/sql/record.hpp"
@@ -20,25 +21,25 @@ void sqlite_connection::open()
return;
}
const auto ret = sqlite3_open(info().database.c_str(), &sqlite_db_);
const auto ret = sqlite3_open(info().database.c_str(), &db_);
if (ret != SQLITE_OK) {
throw_sqlite_error(ret, sqlite_db_, "open");
throw_sqlite_error(ret, db_, "open");
}
}
void sqlite_connection::close()
{
int ret = sqlite3_close(sqlite_db_);
int ret = sqlite3_close(db_);
throw_sqlite_error(ret, sqlite_db_, "close");
throw_sqlite_error(ret, db_, "close");
sqlite_db_ = nullptr;
db_ = nullptr;
}
bool sqlite_connection::is_open()
{
return sqlite_db_ != nullptr;
return db_ != nullptr;
}
int sqlite_connection::parse_result(void* param, int column_count, char** values, char** columns)
@@ -75,9 +76,9 @@ sqlite_connection::fetch_context sqlite_connection::fetch_internal(const std::st
{
fetch_context context;
char *errmsg = nullptr;
const int ret = sqlite3_exec(sqlite_db_, stmt.c_str(), parse_result, &context, &errmsg);
const int ret = sqlite3_exec(db_, stmt.c_str(), parse_result, &context, &errmsg);
throw_sqlite_error(ret, sqlite_db_, "sqlite", stmt);
throw_sqlite_error(ret, db_, "sqlite", stmt);
return context;
}
@@ -85,11 +86,11 @@ sqlite_connection::fetch_context sqlite_connection::fetch_internal(const std::st
size_t sqlite_connection::execute(const std::string &stmt)
{
char *errmsg = nullptr;
int ret = sqlite3_exec(sqlite_db_, stmt.c_str(), nullptr, nullptr, &errmsg);
int ret = sqlite3_exec(db_, stmt.c_str(), nullptr, nullptr, &errmsg);
throw_sqlite_error(ret, sqlite_db_, "sqlite", stmt);
throw_sqlite_error(ret, db_, "sqlite", stmt);
return sqlite3_changes(sqlite_db_);
return sqlite3_changes(db_);
}
std::unique_ptr<sql::query_result_impl> sqlite_connection::fetch(const std::string &stmt)
@@ -99,8 +100,13 @@ std::unique_ptr<sql::query_result_impl> sqlite_connection::fetch(const std::stri
return std::move(std::make_unique<sql::query_result_impl>(std::make_unique<sqlite_result_reader>(std::move(context.rows), context.prototype.size()), std::move(context.prototype)));
}
void sqlite_connection::prepare(const std::string &stmt)
std::unique_ptr<sql::statement_impl> sqlite_connection::prepare(sql::query_context query)
{
sqlite3_stmt *stmt{};
int ret = sqlite3_prepare_v2(db_, query.sql.c_str(), static_cast<int>(query.sql.size()), &stmt, nullptr);
throw_sqlite_error(ret, db_, "sqlite3_prepare_v2", query.sql);
return std::make_unique<sqlite_statement>(db_, stmt, query);
}
sql::data_type_t string2type(const char *type)
@@ -142,7 +148,7 @@ sql::record sqlite_connection::describe(const std::string& table)
{
const auto result = fetch_internal("PRAGMA table_info(" + table + ")");
sqlite_result_reader reader(std::move(result.rows), result.prototype.size());
sqlite_result_reader reader(result.rows, result.prototype.size());
sql::record prototype;
while (reader.fetch()) {
char *end = nullptr;