initial commit

db/migrate/20250717162220_create_subprojects.rb

@@ -0,0 +1,22 @@
+class CreateSubprojects < ActiveRecord::Migration[8.0]
+  def change
+    create_table :subprojects do |t|
+      t.string :subproject_name
+      t.references :project, null: false, foreign_key: true
+
+      # client references
+      t.bigint :client_id, null: false
+      t.bigint :owner_id, null: false
+      t.bigint :builder_id, null: false
+
+      t.timestamps
+    end
+
+    add_foreign_key :subprojects, :clients, column: :client_id
+    add_foreign_key :subprojects, :clients, column: :owner_id
+    add_foreign_key :subprojects, :clients, column: :builder_id
+    add_index :subprojects, :client_id
+    add_index :subprojects, :owner_id
+    add_index :subprojects, :builder_id
+  end
+end