The Quest for the Holy Grails
summary
Builds a small Grails 2.4.3 app step by step (repo has numbered branches showing waypoints) and demonstrates real choices: uses gvm and IntelliJ, H2 in‑memory DB and the DB console, scaffolds CRUD to show render/redirect/return flow, adds domain relationships with hasMany/belongsTo and constraints (including a closure validator and the Elvis operator), writes a transactional service that calls Google Geocode REST and parses XML with XmlSlurper, adds a Google visualization plugin to show markers, and verifies behavior with Spock tests.
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chapters (8)
- 0:00Introduction to Grails
- 13:09Creating a Grails project
- 28:12Controllers and request handling
- 36:58Building a domain model
- 51:03GORM and relationships
- 1:01:18Full domain model with services
- 1:14:19Integrating external services
- 1:21:52Using Grails plugins
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