isCyclic() — drizzle-orm Function Reference

Architecture documentation for the isCyclic() function in introspect-mysql.ts from the drizzle-orm codebase.

Function typescript DrizzleKit SchemaDiffer called by 1

Entity Profile

DrizzleKit→ SchemaDiffer→ isCyclic() — drizzle-orm Function Reference

Dependency Diagram

graph TD
  ebb79cf5_a507_ad19_ebbe_4a56a47233dc["isCyclic()"]
  1198bdc6_ac5c_88c0_dda6_b8caf0f5d9fa["introspect-mysql.ts"]
  ebb79cf5_a507_ad19_ebbe_4a56a47233dc -->|defined in| 1198bdc6_ac5c_88c0_dda6_b8caf0f5d9fa
  66cb9854_27ce_f964_9c23_6dd6fd021ba0["createTableColumns()"]
  66cb9854_27ce_f964_9c23_6dd6fd021ba0 -->|calls| ebb79cf5_a507_ad19_ebbe_4a56a47233dc
  style ebb79cf5_a507_ad19_ebbe_4a56a47233dc fill:#6366f1,stroke:#818cf8,color:#fff

Relationship Graph

Source Code

drizzle-kit/src/introspect-mysql.ts lines 356–360

const isCyclic = (fk: ForeignKey) => {
	const key = `${fk.tableFrom}-${fk.tableTo}`;
	const reverse = `${fk.tableTo}-${fk.tableFrom}`;
	return relations.has(key) && relations.has(reverse);
};