mydb/record.go

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2023-09-18 15:15:42 +08:00
package mydb
// Record is the equivalence between concrete database schemas and Go values.
type Record interface {
Store(sess Session) Store
}
// HasConstraints is an interface for records that defines a Constraints method
// that returns the record's own constraints.
type HasConstraints interface {
Constraints() Cond
}
// Validator is an interface for records that defines an (optional) Validate
// method that is called before persisting a record (creating or updating). If
// Validate returns an error the current operation is cancelled and rolled
// back.
type Validator interface {
Validate() error
}
// BeforeCreateHook is an interface for records that defines an BeforeCreate
// method that is called before creating a record. If BeforeCreate returns an
// error the create process is cancelled and rolled back.
type BeforeCreateHook interface {
BeforeCreate(Session) error
}
// AfterCreateHook is an interface for records that defines an AfterCreate
// method that is called after creating a record. If AfterCreate returns an
// error the create process is cancelled and rolled back.
type AfterCreateHook interface {
AfterCreate(Session) error
}
// BeforeUpdateHook is an interface for records that defines a BeforeUpdate
// method that is called before updating a record. If BeforeUpdate returns an
// error the update process is cancelled and rolled back.
type BeforeUpdateHook interface {
BeforeUpdate(Session) error
}
// AfterUpdateHook is an interface for records that defines an AfterUpdate
// method that is called after updating a record. If AfterUpdate returns an
// error the update process is cancelled and rolled back.
type AfterUpdateHook interface {
AfterUpdate(Session) error
}
// BeforeDeleteHook is an interface for records that defines a BeforeDelete
// method that is called before removing a record. If BeforeDelete returns an
// error the delete process is cancelled and rolled back.
type BeforeDeleteHook interface {
BeforeDelete(Session) error
}
// AfterDeleteHook is an interface for records that defines a AfterDelete
// method that is called after removing a record. If AfterDelete returns an
// error the delete process is cancelled and rolled back.
type AfterDeleteHook interface {
AfterDelete(Session) error
}