How to Implement Content Validation Rules in a CMS
IntermediateQuick Answer
TL;DR
Implementing content validation rules in a content management system means defining constraints that content must satisfy before it can be saved or published—required fields, character limits, format patterns, and custom business logic. Configure validation at the field level for simple constraints and at the document level for cross-field rules. Good validation prevents bad data from entering your system and gives editors clear, actionable feedback.
Key Takeaways
- Field-level validation covers required fields, min/max length, regex patterns, and allowed value lists
- Document-level validation handles cross-field rules and conditional requirements (e.g., "if type is X, field Y is required")
- Custom validation functions let you run async checks, including calls to external APIs
- Validation should surface errors in real time as editors type, not only on save
- Distinguish between hard errors (block save) and warnings (allow save with notice)