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silverqx
88 lines
2.9 KiB
C++
88 lines
2.9 KiB
C++
#pragma once
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#ifndef ORM_QUERY_JOINCLAUSE_HPP
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#define ORM_QUERY_JOINCLAUSE_HPP
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#include "orm/macros/systemheader.hpp"
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TINY_SYSTEM_HEADER
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#include "orm/query/querybuilder.hpp"
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TINYORM_BEGIN_COMMON_NAMESPACE
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namespace Orm::Query
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{
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/*! Join clause. */
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class SHAREDLIB_EXPORT JoinClause final : public Builder // clazy:exclude=copyable-polymorphic
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{
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public:
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/*! Type for the Join table (FromClause). */
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using JoinTable = FromClause;
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/*! Copy constructor. */
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inline JoinClause(const JoinClause &) = default;
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/*! Deleted copy assignment operator (class constains reference and const). */
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JoinClause &operator=(const JoinClause &) = delete;
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/*! Move constructor. */
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inline JoinClause(JoinClause &&) = default;
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/*! Deleted move assignment operator (class constains reference and const). */
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JoinClause &operator=(JoinClause &&) = delete;
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/*! Virtual destructor. */
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inline ~JoinClause() final = default;
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/*! Constructor with the table as QString. */
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JoinClause(const Builder &query, const QString &type, const QString &table);
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/*! Constructor with the table as Expression. */
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JoinClause(const Builder &query, const QString &type, const Expression &table);
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/*! Constructor with the table as Expression. */
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JoinClause(const Builder &query, const QString &type, Expression &&table);
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/*! Constructor with the table as Expression. */
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JoinClause(const Builder &query, const QString &type, const JoinTable &table);
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/*! Add an "on" clause to the join. */
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JoinClause &on(const QString &first, const QString &comparison,
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const QString &second, const QString &condition = AND);
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/*! Add an "or on" clause to the join. */
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JoinClause &orOn(const QString &first, const QString &comparison,
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const QString &second);
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/*! Get the type of join being performed. */
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inline const QString &getType() const;
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/*! Get the table the join clause is joining to. */
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inline const std::variant<std::monostate, QString, Expression> &
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getTable() const;
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/*! Get a new instance of the join clause builder. */
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QSharedPointer<Builder> newQuery() const final;
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protected:
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/*! Create a new query instance for a sub-query. */
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QSharedPointer<Builder> forSubQuery() const final;
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private:
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/*! The type of join being performed. */
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const QString m_type;
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/*! The table the join clause is joining to. */
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const JoinTable m_table;
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};
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const QString &
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JoinClause::getType() const
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{
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return m_type;
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}
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const std::variant<std::monostate, QString, Expression> &
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JoinClause::getTable() const
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{
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return m_table;
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}
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} // namespace Orm::Query
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TINYORM_END_COMMON_NAMESPACE
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#endif // ORM_QUERY_JOINCLAUSE_HPP
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