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-rw-r--r--src/sqlitepp.cpp240
-rw-r--r--src/sqlitepptest.cpp108
2 files changed, 348 insertions, 0 deletions
diff --git a/src/sqlitepp.cpp b/src/sqlitepp.cpp
new file mode 100644
index 0000000..8cdb357
--- /dev/null
+++ b/src/sqlitepp.cpp
@@ -0,0 +1,240 @@
+/*
+ * (C) 2014 Robin Krahl
+ * MIT license -- http://opensource.org/licenses/MIT
+ */
+
+#include "sqlitepp.h"
+
+#include <exception>
+#include <iostream>
+#include <sstream>
+
+sqlitepp::Openable::Openable(const bool open, const std::string & name) :
+ m_open(open), m_name(name) {
+}
+
+const bool sqlitepp::Openable::isOpen() const {
+ return m_open;
+}
+
+void sqlitepp::Openable::requireOpen() const {
+ if (!m_open) {
+ throw std::logic_error(m_name + " is not open.");
+ }
+}
+
+void sqlitepp::Openable::setOpen(const bool open) {
+ m_open = open;
+}
+
+const std::string sqlitepp::DatabaseError::getErrorMessage(const int errorCode, const std::string & errorMessage) {
+ std::ostringstream stringStream;
+ stringStream << "Caught SQLite3 error " << errorCode << " meaning: " << errorMessage;
+ return stringStream.str();
+}
+
+sqlitepp::DatabaseError::DatabaseError(const int errorCode) :
+ std::runtime_error(getErrorMessage(errorCode, sqlite3_errstr(errorCode))), m_errorCode(errorCode) {
+}
+
+sqlitepp::DatabaseError::DatabaseError(const int errorCode, const std::string & errorMessage) :
+ std::runtime_error(getErrorMessage(errorCode, errorMessage)), m_errorCode(errorCode)
+{
+}
+
+const int sqlitepp::DatabaseError::errorCode() const {
+ return m_errorCode;
+}
+
+sqlitepp::Statement::Statement(sqlitepp::Database & database, const std::string & statement) :
+ Openable(true, "Statement"), m_canRead(false) {
+ database.requireOpen();
+ int result = sqlite3_prepare_v2(database.m_handle, statement.c_str(), -1, &m_handle, NULL);
+ if (result != SQLITE_OK) {
+ throw DatabaseError(result, sqlite3_errmsg(database.m_handle));
+ }
+ if (m_handle == NULL) {
+ throw std::runtime_error("Statement handle is NULL");
+ }
+}
+
+sqlitepp::Statement::~Statement() {
+ if (isOpen()) {
+ // errors that could occur during finalizing are ignored as they have
+ // already been handled!
+ sqlite3_finalize(m_handle);
+ setOpen(false);
+ }
+}
+
+void sqlitepp::Statement::bindDouble(const int index, const double value) {
+ requireOpen();
+ handleBindResult(index, sqlite3_bind_double(m_handle, index, value));
+}
+
+void sqlitepp::Statement::bindDouble(const std::string & name, const double value) {
+ bindDouble(getParameterIndex(name), value);
+}
+
+void sqlitepp::Statement::bindInt(const int index, const int value) {
+ requireOpen();
+ handleBindResult(index, sqlite3_bind_int(m_handle, index, value));
+}
+
+void sqlitepp::Statement::bindInt(const std::string & name, const int value) {
+ bindInt(getParameterIndex(name), value);
+}
+
+void sqlitepp::Statement::bindString(const int index, const std::string & value) {
+ requireOpen();
+ handleBindResult(index, sqlite3_bind_text(m_handle, index, value.c_str(), -1, NULL));
+}
+
+void sqlitepp::Statement::bindString(const std::string & name, const std::string & value) {
+ bindString(getParameterIndex(name), value);
+}
+
+const bool sqlitepp::Statement::canRead() const {
+ return m_canRead;
+}
+
+const int sqlitepp::Statement::columnCount() const {
+ requireOpen();
+ requireCanRead();
+ return sqlite3_column_count(m_handle);
+}
+
+const double sqlitepp::Statement::readDouble(const int column) const {
+ requireOpen();
+ requireCanRead();
+ return sqlite3_column_double(m_handle, column);
+}
+
+const int sqlitepp::Statement::readInt(const int column) const {
+ requireOpen();
+ requireCanRead();
+ return sqlite3_column_int(m_handle, column);
+}
+
+const std::string sqlitepp::Statement::readString(const int column) const {
+ requireOpen();
+ requireCanRead();
+ return std::string((const char *) sqlite3_column_text(m_handle, column));
+}
+
+void sqlitepp::Statement::requireCanRead() const {
+ if (!m_canRead) {
+ throw std::logic_error("Trying to read from statement without data");
+ }
+}
+
+const bool sqlitepp::Statement::step() {
+ requireOpen();
+ int result = sqlite3_step(m_handle);
+ if (result == SQLITE_ROW) {
+ m_canRead = true;
+ } else if (result == SQLITE_DONE) {
+ m_canRead = false;
+ } else {
+ throw DatabaseError(result);
+ }
+ return m_canRead;
+}
+
+void sqlitepp::Statement::finalize() {
+ if (isOpen()) {
+ // errors that could occur during finalizing are ignored as they have
+ // already been handled!
+ sqlite3_finalize(m_handle);
+ setOpen(false);
+ }
+}
+
+const bool sqlitepp::Statement::reset() {
+ requireOpen();
+ return sqlite3_reset(m_handle) == SQLITE_OK;
+}
+
+int sqlitepp::Statement::getParameterIndex(const std::string & name) const {
+ requireOpen();
+ int index = sqlite3_bind_parameter_index(m_handle, name.c_str());
+ if (index == 0) {
+ throw std::invalid_argument("No such parameter: " + name);
+ }
+ return index;
+}
+
+void sqlitepp::Statement::handleBindResult(const int index, const int result) const {
+ switch (result) {
+ case SQLITE_OK:
+ break;
+ case SQLITE_RANGE:
+ throw std::out_of_range("Bind index out of range: " + index);
+ case SQLITE_NOMEM:
+ throw std::runtime_error("No memory to bind parameter");
+ default:
+ throw DatabaseError(result);
+ }
+}
+
+sqlitepp::Database::Database() : Openable(false, "Database") {
+}
+
+sqlitepp::Database::Database(const std::string & file) : Openable(false, "Database") {
+ open(file);
+}
+
+sqlitepp::Database::~Database() {
+ if (isOpen()) {
+ int result = sqlite3_close(m_handle);
+ if (result != SQLITE_OK) {
+ std::cerr << "sqlitepp::Database::~Database(): Close failed with code "
+ << result << " meaning: " << sqlite3_errstr(result);
+ std::abort();
+ } else {
+ setOpen(false);
+ }
+ }
+ // m_handle is deleted by sqlite3_close
+}
+
+void sqlitepp::Database::close() {
+ if (isOpen()) {
+ int result = sqlite3_close(m_handle);
+ if (result == SQLITE_OK) {
+ setOpen(false);
+ } else {
+ throw sqlitepp::DatabaseError(result);
+ }
+ }
+}
+
+void sqlitepp::Database::execute(const std::string & sql) {
+ requireOpen();
+ Statement statement(*this, sql);
+ statement.step();
+ statement.finalize();
+}
+
+void sqlitepp::Database::open(const std::string & file) {
+ if (isOpen()) {
+ throw std::logic_error("sqlitepp::Database::open(std::string&): Database already open");
+ }
+ int result = sqlite3_open(file.c_str(), & m_handle);
+
+ if (m_handle == NULL) {
+ throw std::runtime_error("sqlitepp::Database::open(std::string&): Can't allocate memory");
+ }
+
+ if (result == SQLITE_OK) {
+ setOpen(true);
+ } else {
+ std::string errorMessage = sqlite3_errmsg(m_handle);
+ sqlite3_close(m_handle);
+ throw sqlitepp::DatabaseError(result, errorMessage);
+ }
+}
+
+std::shared_ptr<sqlitepp::Statement> sqlitepp::Database::prepare(const std::string & sql) {
+ return std::shared_ptr<sqlitepp::Statement>(new sqlitepp::Statement(*this, sql));
+} \ No newline at end of file
diff --git a/src/sqlitepptest.cpp b/src/sqlitepptest.cpp
new file mode 100644
index 0000000..7974eae
--- /dev/null
+++ b/src/sqlitepptest.cpp
@@ -0,0 +1,108 @@
+/*
+ * (C) 2014 Robin Krahl
+ * MIT license -- http://opensource.org/licenses/MIT
+ */
+
+#include "sqlitepp.h"
+
+#define BOOST_TEST_DYN_LINK
+#define BOOST_TEST_MODULE SQLitePPTest
+#include <boost/test/unit_test.hpp>
+
+#include <fstream>
+#include <iostream>
+#include <stdexcept>
+
+BOOST_AUTO_TEST_CASE(openClose) {
+ sqlitepp::Database database;
+ BOOST_CHECK(!database.isOpen());
+ database.open("/tmp/test.db");
+ BOOST_CHECK(database.isOpen());
+ database.close();
+ BOOST_CHECK(!database.isOpen());
+ database.open("/tmp/test2.db");
+ BOOST_CHECK(database.isOpen());
+ database.close();
+ BOOST_CHECK(!database.isOpen());
+ sqlitepp::Database database2("/tmp/test.db");
+ BOOST_CHECK(database2.isOpen());
+ try {
+ database2.open("/tmp/test2.db");
+ BOOST_ERROR("Calling open() to an open database does not throw an exception.");
+ } catch (std::logic_error &) {
+ // everything fine
+ }
+ BOOST_CHECK(database2.isOpen());
+ database2.close();
+ BOOST_CHECK(!database2.isOpen());
+
+ std::ifstream testStream("/tmp/test.db");
+ BOOST_CHECK(testStream.good());
+ testStream.close();
+ testStream.open("/tmp/test2.db");
+ BOOST_CHECK(testStream.good());
+ testStream.close();
+}
+
+BOOST_AUTO_TEST_CASE(copy) {
+ sqlitepp::Database database;
+ // MUST NOT COMPILE:
+ // sqlitepp::Database database2 = database;
+ database.close();
+ sqlitepp::Database database3;
+ // MUST NOT COMPILE:
+ // database3 = database;
+ database3.close();
+}
+
+BOOST_AUTO_TEST_CASE(prepare) {
+ sqlitepp::Database database("/tmp/test.db");
+ sqlitepp::Statement statement(database, "CREATE TABLE IF NOT EXISTS test (id, value);");
+ // TODO check std::logic_error
+ BOOST_CHECK(statement.isOpen());
+ statement.finalize();
+ BOOST_CHECK(!statement.isOpen());
+ database.close();
+}
+
+BOOST_AUTO_TEST_CASE(execute) {
+ sqlitepp::Database database("/tmp/test.db");
+ database.execute("CREATE TABLE IF NOT EXISTS test (id, value);");
+ sqlitepp::Statement statement(database, "INSERT INTO test (id, value) VALUES (:id, ?)");
+ statement.bindInt(":id", 1);
+ statement.bindString(2, "test value");
+ statement.step();
+ statement.reset();
+ statement.bindInt(":id", 2);
+ statement.bindString(2, "other value");
+ statement.step();
+ statement.finalize();
+}
+
+BOOST_AUTO_TEST_CASE(query) {
+ sqlitepp::Database database("/tmp/test.db");
+ sqlitepp::Statement statement(database, "SELECT id, value FROM test;");
+ bool hasNext = statement.step();
+ BOOST_CHECK(hasNext);
+ BOOST_CHECK_EQUAL(statement.columnCount(), 2);
+ int id = statement.readInt(0);
+ std::string value = statement.readString(1);
+ BOOST_CHECK_EQUAL(id, 1);
+ BOOST_CHECK_EQUAL(value, "test value");
+ hasNext = statement.step();
+ BOOST_CHECK(hasNext);
+ id = statement.readInt(0);
+ value = statement.readString(1);
+ BOOST_CHECK_EQUAL(id, 2);
+ BOOST_CHECK_EQUAL(value, "other value");
+ hasNext = statement.step();
+ BOOST_CHECK(!hasNext);
+ statement.finalize();
+ database.close();
+}
+
+BOOST_AUTO_TEST_CASE(cleanup) {
+ sqlitepp::Database database("/tmp/test.db");
+ database.execute("DROP TABLE test;");
+ database.close();
+} \ No newline at end of file
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