Constraints

Constraints are special components that allow you to add custom Python code to modify the optimisation problem. They store code blocks that are executed when building the optimisation model, enabling advanced users to implement custom operational rules and limits beyond the standard component attributes.

TIP

For detailed information on writing custom constraints, see the Custom Constraints section with working examples.

Properties

Constraint components are stored in the components table with component_type='CONSTRAINT' and have the following attributes:

Attribute	Data Type	Unit	Default	Required	Storage Type	Description
constraint_code	string	n/a	(empty)	Yes	static	Python code block defining constraint logic
description	string	n/a	(empty)	No	static	Human-readable description of the constraint
is_active	boolean	n/a	True	No	static	Whether constraint is active and should be applied
priority	int	n/a	0	No	static	Execution priority (lower numbers execute first)

Access in Convexity

In the Convexity application, navigate to Tables → Constraints to view, add, edit, or activate/deactivate custom constraints.

Learn More

• Custom Constraints Guide - Complete guide with examples
• Constraint Examples - Working code examples
• PyConvexity - Programmatic access to constraints