The per-instance constraint declared for one field of an action. More...

#include <instance_constraints.hpp>

Public Attributes
std::string	field
	Wire (JSON) key of the member this entry constrains.
std::optional< std::uint32_t >	decimalPlaces {}
	The instance's decimal precision for this field. Overwrites x-decimalPlaces, and a submitted value that is not exactly representable at this many places is PrecisionExceeded.
std::optional< math::Rational >	minimum {}
	Inclusive lower bound; emitted as x-minimum.
std::optional< math::Rational >	maximum {}
	Inclusive upper bound; emitted as x-maximum.

Detailed Description

The per-instance constraint declared for one field of an action.

Every member other than field is optional and defaults to "not declared": an absent decimalPlaces leaves the compiled x-decimalPlaces alone, and an absent bound emits nothing and checks nothing. A constraint naming a field the action does not have is ignored (schema decoration never throws over an application's declaration mistake, exactly like formLayout).

Definition at line 114 of file instance_constraints.hpp.

Member Data Documentation

◆ field

std::string morph::forms::FieldConstraint::field

Wire (JSON) key of the member this entry constrains.

Definition at line 116 of file instance_constraints.hpp.

◆ decimalPlaces

std::optional<std::uint32_t> morph::forms::FieldConstraint::decimalPlaces {}

The instance's decimal precision for this field. Overwrites x-decimalPlaces, and a submitted value that is not exactly representable at this many places is PrecisionExceeded.

Definition at line 121 of file instance_constraints.hpp.

◆ minimum

std::optional<math::Rational> morph::forms::FieldConstraint::minimum {}

Inclusive lower bound; emitted as x-minimum.

Definition at line 124 of file instance_constraints.hpp.

◆ maximum

std::optional<math::Rational> morph::forms::FieldConstraint::maximum {}

Inclusive upper bound; emitted as x-maximum.

Definition at line 127 of file instance_constraints.hpp.

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

morph/forms/instance_constraints.hpp