ActiveModel Conditional Validations

Validating The Problem Domain 🔗 Today we&rsquo;re modeling a system that involves providing validated parking. It&rsquo;s a benefit provided by different businesses. They offer their customers a discount at a nearby parking lot. The lot has the following rules: All parking validation tickets must have an expiration time when they&rsquo;re issued. The parking lot owner has a special ticket that…