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https://github.com/silverqx/TinyORM.git
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silverqx
123 lines
4.0 KiB
C++
123 lines
4.0 KiB
C++
#pragma once
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#ifndef ORM_UTILS_QUERY_HPP
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#define ORM_UTILS_QUERY_HPP
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#include "orm/macros/systemheader.hpp"
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TINY_SYSTEM_HEADER
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#include <QVariant>
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#include "orm/constants.hpp"
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#include "orm/macros/commonnamespace.hpp"
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#include "orm/macros/export.hpp"
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#include "orm/utils/helpers.hpp"
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class QSqlQuery;
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TINYORM_BEGIN_COMMON_NAMESPACE
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namespace Orm::Utils
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{
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/*! Concept for a bindings type used in the replaceBindingsInSql(). */
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template<typename T>
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concept BindingsConcept = std::convertible_to<T, QVector<QVariant>> ||
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#if QT_VERSION >= QT_VERSION_CHECK(6, 0, 0)
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std::convertible_to<T, QVariantList>;
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#else
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std::convertible_to<T, QVariantMap>;
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#endif
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/*! Library class for database query. */
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class SHAREDLIB_EXPORT Query
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{
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Q_DISABLE_COPY_MOVE(Query)
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/*! Alias for the helper utils. */
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using Helpers = Orm::Utils::Helpers;
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public:
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/*! Deleted default constructor, this is a pure library class. */
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Query() = delete;
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/*! Deleted destructor. */
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~Query() = delete;
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/*! Get the last executed query with replaced placeholders (ideal for logging). */
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static QString parseExecutedQuery(const QSqlQuery &query);
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/*! Get pretended query with replaced placeholders ( ideal for logging ). */
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inline static QString
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parseExecutedQueryForPretend(QString queryString,
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const QVector<QVariant> &bindings);
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/*! Replace all bindings in the given SQL query. */
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template<BindingsConcept T>
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static std::pair<QString, QStringList>
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replaceBindingsInSql(QString queryString, const T &bindings,
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bool simpleBindings = false);
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/*! Log the last executed query to the debug output. */
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[[maybe_unused]]
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static void logExecutedQuery(const QSqlQuery &query);
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/*! Prepare the passed containers for the multi-insert. */
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static QVector<QVariantMap>
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zipForInsert(const QVector<QString> &columns,
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const QVector<QVector<QVariant>> &values);
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/*! Returns the size of the result (number of rows returned). */
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static int queryResultSize(QSqlQuery &query);
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};
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/* public */
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QString Query::parseExecutedQueryForPretend(QString queryString,
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const QVector<QVariant> &bindings)
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{
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return replaceBindingsInSql(std::move(queryString), bindings).first;
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}
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template<BindingsConcept T>
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std::pair<QString, QStringList>
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Query::replaceBindingsInSql(QString queryString, const T &bindings,
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const bool simpleBindings)
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{
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static const auto Invalid = QStringLiteral("INVALID");
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QString bindingValue;
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QStringList simpleBindingsList;
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simpleBindingsList.reserve(
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static_cast<QStringList::size_type>(bindings.size()));
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for (const auto &binding : bindings) {
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if (!binding.isValid())
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bindingValue = Invalid;
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else if (binding.isNull())
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bindingValue = Orm::Constants::null_;
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else
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// Support for string quoting
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bindingValue = Helpers::qVariantTypeId(binding) == QMetaType::QString
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? Orm::Constants::TMPL_SQUOTES
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.arg(binding.template value<QString>())
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: binding.template value<QString>();
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queryString.replace(queryString.indexOf(QLatin1Char('?')), 1, bindingValue);
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if (simpleBindings)
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#if QT_VERSION < QT_VERSION_CHECK(6, 0, 0)
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simpleBindingsList << bindingValue;
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#else
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simpleBindingsList << std::move(bindingValue);
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#endif
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}
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return {std::move(queryString), std::move(simpleBindingsList)};
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}
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} // namespace Orm::Utils
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TINYORM_END_COMMON_NAMESPACE
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#endif // ORM_UTILS_QUERY_HPP
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