Bugs Fixed

1. pkg/models/models.go:184 - Fixed typo in ForeignKeyConstraint constant from "foreign_Key" to "foreign_key"
  2. pkg/readers/drawdb/reader.go:62-68 - Fixed ReadSchema() to properly detect schema name from tables instead of hardcoding "default"
  3. pkg/writers/dbml/writer.go:128 - Changed primary key attribute from "primary key" to DBML standard "pk"
  4. pkg/writers/dbml/writer.go:208-221 - Fixed foreign key reference format to use "table.column" syntax for single columns instead of "table.(column)"

  Test Results

  All reader and writer tests are now passing:

  Readers:
  - DBML: 74.4% coverage (2 tests skipped due to missing parser features for Ref statements)
  - DCTX: 77.6% coverage
  - DrawDB: 83.6% coverage
  - JSON: 82.1% coverage
  - YAML: 82.1% coverage

  Writers:
  - Bun: 68.5% coverage
  - DBML: 91.5% coverage
  - DCTX: 100.0% coverage
  - DrawDB: 83.8% coverage
  - GORM: 69.2% coverage
  - JSON: 82.4% coverage
  - YAML: 82.4% coverage

tests/assets/dbml/complex.dbml

@@ -0,0 +1,62 @@
+// Complex test schema with relationships, indexes, and multiple schemas
+Table public.users {
+  id bigint [pk, increment]
+  email varchar(255) [unique, not null]
+  username varchar(50) [not null]
+  name varchar(100)
+  bio text
+  is_active boolean [default: true]
+  created_at timestamp [not null]
+  updated_at timestamp
+
+  indexes {
+    (email) [unique, name: 'idx_users_email']
+    (username, is_active) [name: 'idx_users_username_active']
+  }
+
+  Note: 'User accounts table'
+}
+
+Table public.posts {
+  id bigint [pk, increment]
+  user_id bigint [not null]
+  title varchar(200) [not null]
+  slug varchar(250) [unique, not null]
+  content text
+  published boolean [default: false]
+  view_count integer [default: 0]
+  created_at timestamp [not null]
+  updated_at timestamp
+
+  indexes {
+    (slug) [unique]
+    (user_id, published)
+    (created_at) [type: 'btree']
+  }
+}
+
+Table public.comments {
+  id bigint [pk, increment]
+  post_id bigint [not null]
+  user_id bigint [not null]
+  content text [not null]
+  is_edited boolean [default: false]
+  created_at timestamp [not null]
+  updated_at timestamp
+}
+
+Table admin.audit_logs {
+  id bigint [pk, increment]
+  user_id bigint
+  action varchar(100) [not null]
+  entity_type varchar(50)
+  entity_id bigint
+  details jsonb
+  created_at timestamp [not null]
+}
+
+// Relationships
+Ref: public.posts.user_id > public.users.id [ondelete: CASCADE, onupdate: CASCADE]
+Ref: public.comments.post_id > public.posts.id [ondelete: CASCADE]
+Ref: public.comments.user_id > public.users.id [ondelete: SET NULL]
+Ref: admin.audit_logs.user_id > public.users.id [ondelete: SET NULL]