Metadata for entity fields including constraints and relationships. More...

#include <entity.h>

Collaboration diagram for database::orm::field_metadata:

Public Member Functions
	field_metadata (const std::string &name, const std::string &type_name, field_constraint constraints=field_constraint::none, const std::string &index_name="", const std::string &foreign_table="", const std::string &foreign_field="")

const std::string &	name () const

const std::string &	type_name () const

field_constraint	constraints () const

const std::string &	index_name () const

const std::string &	foreign_table () const

const std::string &	foreign_field () const

bool	is_primary_key () const

bool	is_not_null () const

bool	is_unique () const

bool	is_auto_increment () const

bool	has_index () const

bool	is_foreign_key () const

bool	has_default_now () const

std::string	to_sql_definition () const

Private Attributes
std::string	name_

std::string	type_name_

field_constraint	constraints_

std::string	index_name_

std::string	foreign_table_

std::string	foreign_field_

Detailed Description

Metadata for entity fields including constraints and relationships.

Definition at line 77 of file entity.h.

Constructor & Destructor Documentation

◆ field_metadata()

database::orm::field_metadata::field_metadata	(	const std::string &	name,
		const std::string &	type_name,
		field_constraint	constraints = field_constraint::none,
		const std::string &	index_name = "",
		const std::string &	foreign_table = "",
		const std::string &	foreign_field = "" )

Examples: /home/runner/work/database_system/database_system/database/orm/entity.h.

Definition at line 24 of file entity.cpp.

        : name_(name)
        , type_name_(type_name)
        , constraints_(constraints)
        , index_name_(index_name)
        , foreign_table_(foreign_table)
        , foreign_field_(foreign_field)
    {
    }

Member Function Documentation

◆ constraints()

field_constraint database::orm::field_metadata::constraints ( ) const

inline

Examples: /home/runner/work/database_system/database_system/database/orm/entity.h.

Definition at line 89 of file entity.h.

89{ return constraints_; }

References constraints_.

◆ foreign_field()

const std::string & database::orm::field_metadata::foreign_field ( ) const

inline

Examples: /home/runner/work/database_system/database_system/database/orm/entity.h.

Definition at line 92 of file entity.h.

92{ return foreign_field_; }

References foreign_field_.

Referenced by TEST_F().

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◆ foreign_table()

const std::string & database::orm::field_metadata::foreign_table ( ) const

inline

Examples: /home/runner/work/database_system/database_system/database/orm/entity.h.

Definition at line 91 of file entity.h.

91{ return foreign_table_; }

References foreign_table_.

Referenced by TEST_F().

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◆ has_default_now()

bool database::orm::field_metadata::has_default_now ( ) const

inline

Examples: /home/runner/work/database_system/database_system/database/orm/entity.h.

Definition at line 100 of file entity.h.

100{ return has_constraint(constraints_, field_constraint::default_now); }

database::orm::field_constraint::default_now

@ default_now

database::orm::has_constraint

bool has_constraint(field_constraint constraints, field_constraint check)

Definition entity.h:69

References constraints_, database::orm::default_now, and database::orm::has_constraint().

Referenced by TEST_F(), TEST_F(), and to_sql_definition().

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◆ has_index()

bool database::orm::field_metadata::has_index ( ) const

inline

Examples: /home/runner/work/database_system/database_system/database/orm/entity.h.

Definition at line 98 of file entity.h.

98{ return has_constraint(constraints_, field_constraint::index); }

database::orm::field_constraint::index

@ index

References constraints_, database::orm::has_constraint(), and database::orm::index.

Referenced by TEST_F(), and TEST_F().

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◆ index_name()

const std::string & database::orm::field_metadata::index_name ( ) const

inline

Examples: /home/runner/work/database_system/database_system/database/orm/entity.h.

Definition at line 90 of file entity.h.

90{ return index_name_; }

References index_name_.

Referenced by TEST_F().

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◆ is_auto_increment()

bool database::orm::field_metadata::is_auto_increment ( ) const

inline

Examples: /home/runner/work/database_system/database_system/database/orm/entity.h.

Definition at line 97 of file entity.h.

97{ return has_constraint(constraints_, field_constraint::auto_increment); }

database::orm::field_constraint::auto_increment

@ auto_increment

References database::orm::auto_increment, constraints_, and database::orm::has_constraint().

Referenced by TEST_F(), TEST_F(), and to_sql_definition().

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◆ is_foreign_key()

bool database::orm::field_metadata::is_foreign_key ( ) const

inline

Examples: /home/runner/work/database_system/database_system/database/orm/entity.h.

Definition at line 99 of file entity.h.

99{ return has_constraint(constraints_, field_constraint::foreign_key); }

database::orm::field_constraint::foreign_key

@ foreign_key

References constraints_, database::orm::foreign_key, and database::orm::has_constraint().

Referenced by TEST_F(), and TEST_F().

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◆ is_not_null()

bool database::orm::field_metadata::is_not_null ( ) const

inline

Examples: /home/runner/work/database_system/database_system/database/orm/entity.h.

Definition at line 95 of file entity.h.

95{ return has_constraint(constraints_, field_constraint::not_null); }

database::orm::field_constraint::not_null

@ not_null

References constraints_, database::orm::has_constraint(), and database::orm::not_null.

Referenced by TEST_F(), TEST_F(), TEST_F(), TEST_F(), and to_sql_definition().

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◆ is_primary_key()

bool database::orm::field_metadata::is_primary_key ( ) const

inline

Examples: /home/runner/work/database_system/database_system/database/orm/entity.h.

Definition at line 94 of file entity.h.

94{ return has_constraint(constraints_, field_constraint::primary_key); }

database::orm::field_constraint::primary_key

@ primary_key

References constraints_, database::orm::has_constraint(), and database::orm::primary_key.

Referenced by TEST_F(), TEST_F(), TEST_F(), TEST_F(), and to_sql_definition().

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◆ is_unique()

bool database::orm::field_metadata::is_unique ( ) const

inline

Examples: /home/runner/work/database_system/database_system/database/orm/entity.h.

Definition at line 96 of file entity.h.

96{ return has_constraint(constraints_, field_constraint::unique); }

database::orm::field_constraint::unique

@ unique

References constraints_, database::orm::has_constraint(), and database::orm::unique.

Referenced by TEST_F(), TEST_F(), and to_sql_definition().

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◆ name()

const std::string & database::orm::field_metadata::name ( ) const

inline

Examples: /home/runner/work/database_system/database_system/database/orm/entity.h.

Definition at line 87 of file entity.h.

87{ return name_; }

References name_.

Referenced by TEST_F().

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◆ to_sql_definition()

std::string database::orm::field_metadata::to_sql_definition ( ) const

Examples: /home/runner/work/database_system/database_system/database/orm/entity.h.

Definition at line 39 of file entity.cpp.

    {
        std::ostringstream oss;
        oss << name_ << " ";
 
        // Map C++ types to SQL types
        if (type_name_ == "int32_t" || type_name_ == "int") {
            oss << "INTEGER";
        } else if (type_name_ == "int64_t") {
            oss << "BIGINT";
        } else if (type_name_ == "double") {
            oss << "DOUBLE PRECISION";
        } else if (type_name_ == "std::string") {
            oss << "VARCHAR(255)";
        } else if (type_name_ == "bool") {
            oss << "BOOLEAN";
        } else if (type_name_.find("time_point") != std::string::npos) {
            oss << "TIMESTAMP";
        } else {
            oss << "TEXT";
        }
 
        // Add constraints
        if (is_primary_key()) {
            oss << " PRIMARY KEY";
        }
        if (is_auto_increment()) {
            oss << " AUTO_INCREMENT";
        }
        if (is_not_null() && !is_primary_key()) {
            oss << " NOT NULL";
        }
        if (is_unique() && !is_primary_key()) {
            oss << " UNIQUE";
        }
        if (has_default_now()) {
            oss << " DEFAULT CURRENT_TIMESTAMP";
        }
 
        return oss.str();
    }