Production Patterns
The earlier sections explain individual techniques. This section puts them together into complete, annotated filter templates that are ready to copy and adapt for real rules.
A production filter is not cleverer than a basic filter. It is more complete: it handles missing data, restricts scope correctly at every level, and makes every assumption explicit.
What you will learn
- What a production-ready filter must handle
- A complete template for type-level (FamilySymbol) validation
- A complete template for instance-level validation with shared parameters
Pages in this section
Production Filter Checklist
A compact reference: what conditions must a filter meet before it is used in production? Use this to review any filter before deploying it.
Template — Type-Level Rule
A complete, annotated filter template for rules that validate data on FamilySymbol objects — Assembly Code, Type Mark, fire rating, and similar type parameters.
Template — Instance-Level Rule
A complete, annotated filter template for rules that validate data on FamilyInstance objects, including shared parameters that may live on either the instance or the type.
Prerequisites
This section assumes you have worked through:
- Conditional Filters — especially
isEditableand parameter existence - Power Patterns — shared parameter helpers and symbol indexing
Production filters are boring on purpose. Boring filters break less, are easier to review, and survive handovers.