Wt: Wt::Dbo::ForeignKeyConstraint Class Reference

Wt 3.3.0

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Wt::Dbo::ForeignKeyConstraint Class Reference
Database Objects (Wt::Dbo)

Type that indicates one or more foreign key constraints. More...

List of all members.

## Detailed Description

Type that indicates one or more foreign key constraints.

This type behaves like an `enum` but avoid ambiguous overloading problems.

See also:
  NotNull
  OnUpdateCascade, OnUpdateSetNull
  OnDeleteCascade OnDeleteSetNull
  belongsTo(), hasMany()

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