Lightweight::SqlMigrationUpdateBuilder Class Reference

Query builder for building UPDATE queries in migrations. More...

#include <Migrate.hpp>

Public Member Functions
	SqlMigrationUpdateBuilder (SqlUpdateDataPlan &plan)
	Constructs a migration UPDATE builder.
template<typename T >
SqlMigrationUpdateBuilder &	Set (std::string columnName, T const &value)
	Sets a column value for the UPDATE.
SqlMigrationUpdateBuilder &	SetExpression (std::string columnName, std::string expression)
	Sets a column to a raw SQL expression — for column-to-column copies or arithmetic that cannot be represented as a literal value.
template<typename T >
SqlMigrationUpdateBuilder &	Where (std::string columnName, std::string op, T const &value)
	Adds a WHERE condition to the UPDATE.
SqlMigrationUpdateBuilder &	WhereExpression (std::string expression)
	Supplies a pre-rendered WHERE-clause body for cases that don't fit the simple (column, op, value) form — composite AND/OR/NOT, IS NULL, IN (subquery), EXISTS (subquery), etc.

Detailed Description

Query builder for building UPDATE queries in migrations.

See also

SqlMigrationQueryBuilder

Definition at line 375 of file Migrate.hpp.

Constructor & Destructor Documentation

SqlMigrationUpdateBuilder()

Lightweight::SqlMigrationUpdateBuilder::SqlMigrationUpdateBuilder ( SqlUpdateDataPlan &  plan )

inlineexplicit

Constructs a migration UPDATE builder.

Definition at line 379 of file Migrate.hpp.

Member Function Documentation

Set()

template<typename T >

SqlMigrationUpdateBuilder & Lightweight::SqlMigrationUpdateBuilder::Set ( std::string  columnName, T const &  value  )

inline

Sets a column value for the UPDATE.

Definition at line 386 of file Migrate.hpp.

SetExpression()

SqlMigrationUpdateBuilder & Lightweight::SqlMigrationUpdateBuilder::SetExpression ( std::string  columnName, std::string  expression  )

inline

Sets a column to a raw SQL expression — for column-to-column copies or arithmetic that cannot be represented as a literal value.

Parameters

columnName	The target column.
expression	The raw SQL fragment (e.g. "OTHER_COL", "CTR" + 1) emitted verbatim after the =. The caller is responsible for any identifier quoting.

Definition at line 399 of file Migrate.hpp.

Where()

template<typename T >

SqlMigrationUpdateBuilder & Lightweight::SqlMigrationUpdateBuilder::Where ( std::string  columnName, std::string  op, T const &  value  )

inline

Adds a WHERE condition to the UPDATE.

Definition at line 407 of file Migrate.hpp.

WhereExpression()

SqlMigrationUpdateBuilder & Lightweight::SqlMigrationUpdateBuilder::WhereExpression ( std::string  expression )

inline

Supplies a pre-rendered WHERE-clause body for cases that don't fit the simple (column, op, value) form — composite AND/OR/NOT, IS NULL, IN (subquery), EXISTS (subquery), etc.

The text is emitted verbatim after WHERE at execution time; the caller is responsible for dialect-safe quoting.

Parameters

expression

Pre-rendered SQL clause body (without the leading WHERE).

Definition at line 422 of file Migrate.hpp.

---

The documentation for this class was generated from the following file:

• Lightweight/SqlQuery/Migrate.hpp