48 lines
1.2 KiB
C++
48 lines
1.2 KiB
C++
#ifndef QUERY_COLUMN_HPP
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#define QUERY_COLUMN_HPP
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#include <functional>
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#include <memory>
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#include <string>
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namespace matador::sql {
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struct table;
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enum class sql_function_t {
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NONE,
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COUNT,
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AVG,
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SUM,
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MIN,
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MAX
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};
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struct column {
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column(const char *name, const std::string& as = ""); // NOLINT(*-explicit-constructor)
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explicit column(std::string name, std::string as = ""); // NOLINT(*-explicit-constructor)
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column(sql_function_t func, std::string name); // NOLINT(*-explicit-constructor)
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column(const struct table &tab, std::string name, std::string as = "");
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column(const std::shared_ptr<table> &t, std::string name, std::string as = "");
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[[nodiscard]] bool equals(const column &x) const;
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column& as(std::string a);
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[[nodiscard]] const std::string& column_name() const;
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[[nodiscard]] std::string full_name() const;
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[[nodiscard]] bool is_function() const;
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[[nodiscard]] bool has_alias() const;
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std::shared_ptr<table> table_;
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using table_ref = std::reference_wrapper<const table>;
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std::string name;
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std::string alias;
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sql_function_t function_{sql_function_t::NONE};
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};
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column operator ""_col(const char *name, size_t len);
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}
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#endif //QUERY_COLUMN_HPP
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