Retire the unused per-node permission subsystem

Every path through Permission raised or lied: validates_presence_of on a
boolean made granted = false unsaveable, since false.blank? is true;
get_permission_for read a nonexistent identifier attribute; has_permission?
called an undefined plural method and returned a truthy relation in every
case; and set_permission mutated granted without saving. Nothing outside the
model referenced it and the table was empty.

1 files changed, 17 insertions, 0 deletions

diff --git a/db/migrate/20260731123346_drop_permissions.rb b/db/migrate/20260731123346_drop_permissions.rb
new file mode 100644
index 00000000..6ea7d2f0
--- /dev/null
+++ b/db/migrate/20260731123346_drop_permissions.rb
@@ -0,0 +1,17 @@
+class DropPermissions < ActiveRecord::Migration[8.1]
+  def up
+    drop_table :permissions
+  end
+
+  # Reversible for form's sake -- the table was empty and every write path
+  # in the model was broken, so there is nothing to restore.
+  def down
+    create_table :permissions, :id => :serial do |t|
+      t.boolean  :granted
+      t.integer  :node_id
+      t.integer  :user_id
+      t.datetime :created_at, :precision => nil
+      t.datetime :updated_at, :precision => nil
+    end
+  end
+end