Add fallback: true option

Author: excid3

CHANGELOG.md

@@ -1,5 +1,9 @@
 ### Unreleased
 
+### 1.5.0
+
+* Add `has_prefix_id fallback: false` option to disable lookup by regular ID - @excid3
+
 ### 1.4.0
 
 * Add `decode_prefix_id` and `decode_prefix_ids` class methods - @TastyPi

Gemfile.lock

@@ -1,7 +1,7 @@
 PATH
   remote: .
   specs:
-    prefixed_ids (1.4.0)
+    prefixed_ids (1.5.0)
       hashids (>= 1.0.0, < 2.0.0)
       rails (>= 6.0.0)
 
@@ -203,4 +203,4 @@ DEPENDENCIES
   standard
 
 BUNDLED WITH
-   2.4.7
+   2.4.9

README.md

@@ -59,7 +59,7 @@ User.find("user_5vJjbzXq9KrLEMm32iAnOP0xGDYk6dpe")
 User.find_by_prefix_id("user_5vJjbzXq9KrLEMm32iAnOP0xGDYk6dpe")
 ```
 
-⚠️ Note that `find` still finds records by the primary key. Eg. `localhost/users/1` still works. 
+⚠️ Note that `find` still finds records by the primary key. Eg. `localhost/users/1` still works.
 If you're targeting security issues by masking the ID, make sure to use `find_by_prefix_id` and [add a salt](#salt).
 
 We also override `to_param` by default so it'll be used in URLs automatically.
@@ -108,10 +108,12 @@ You can customize the prefix, length, and attribute name for PrefixedIds.
 
 ```ruby
 class Account < ApplicationRecord
-  has_prefix_id :acct, minimum_length: 32, override_find: false, override_param: false, salt: ""
+  has_prefix_id :acct, minimum_length: 32, override_find: false, override_param: false, salt: "", fallback: false
 end
 ```
 
+By default, `find` will accept both Prefix IDs and regular IDs. Setting `fallback: false` will disable finding by regular IDs and will only allow Prefix IDs.
+
 ## Development
 
 After checking out the repo, run `bin/setup` to install dependencies. Then, run `rake test` to run the tests. You can also run `bin/console` for an interactive prompt that will allow you to experiment.

gemfiles/rails_6.gemfile.lock

@@ -1,7 +1,7 @@
 PATH
   remote: ..
   specs:
-    prefixed_ids (1.4.0)
+    prefixed_ids (1.5.0)
       hashids (>= 1.0.0, < 2.0.0)
       rails (>= 6.0.0)
 
@@ -202,4 +202,4 @@ DEPENDENCIES
   standard
 
 BUNDLED WITH
-   2.4.7
+   2.4.9

gemfiles/rails_6_1.gemfile.lock

@@ -1,7 +1,7 @@
 PATH
   remote: ..
   specs:
-    prefixed_ids (1.4.0)
+    prefixed_ids (1.5.0)
       hashids (>= 1.0.0, < 2.0.0)
       rails (>= 6.0.0)
 
@@ -205,4 +205,4 @@ DEPENDENCIES
   standard
 
 BUNDLED WITH
-   2.4.7
+   2.4.9

gemfiles/rails_7_0.gemfile.lock

@@ -1,7 +1,7 @@
 PATH
   remote: ..
   specs:
-    prefixed_ids (1.4.0)
+    prefixed_ids (1.5.0)
       hashids (>= 1.0.0, < 2.0.0)
       rails (>= 6.0.0)
 
@@ -202,4 +202,4 @@ DEPENDENCIES
   standard
 
 BUNDLED WITH
-   2.4.7
+   2.4.9

gemfiles/rails_master.gemfile.lock

@@ -94,7 +94,7 @@ GIT
 PATH
   remote: ..
   specs:
-    prefixed_ids (1.4.0)
+    prefixed_ids (1.5.0)
       hashids (>= 1.0.0, < 2.0.0)
       rails (>= 6.0.0)
 
@@ -211,4 +211,4 @@ DEPENDENCIES
   standard
 
 BUNDLED WITH
-   2.4.7
+   2.4.9

lib/prefixed_ids.rb

@@ -34,14 +34,16 @@ module Rails
 
     included do
       class_attribute :_prefix_id
+      class_attribute :_prefix_id_fallback
     end
 
     class_methods do
-      def has_prefix_id(prefix, override_find: true, override_param: true, **options)
+      def has_prefix_id(prefix, override_find: true, override_param: true, fallback: true, **options)
         include Attribute
         include Finder if override_find
         include ToParam if override_param
         self._prefix_id = PrefixId.new(self, prefix, **options)
+        self._prefix_id_fallback = fallback
 
         # Register with PrefixedIds to support PrefixedIds#find
         PrefixedIds.models[prefix.to_s] = self
@@ -72,7 +74,7 @@ def decode_prefix_ids(ids)
     end
 
     def prefix_id
-      self.class._prefix_id.encode(id)
+      _prefix_id.encode(id)
     end
   end
 
@@ -81,7 +83,12 @@ module Finder
 
     class_methods do
       def find(*ids)
-        super(*ids.map { |id| _prefix_id.decode(id, fallback: true) })
+        prefix_ids = *ids.map do |id|
+          prefix_id = _prefix_id.decode(id, fallback: _prefix_id_fallback)
+          raise Error, "#{id} is not a valid prefix_id" if !_prefix_id_fallback && prefix_id.nil?
+          prefix_id
+        end
+        super(*prefix_ids)
       end
 
       def relation

lib/prefixed_ids/prefix_id.rb

@@ -19,9 +19,11 @@ def decode(id, fallback: false)
       fallback_value = fallback ? id : nil
       _, id_without_prefix = PrefixedIds.split_id(id, @delimiter)
       decoded_hashid = @hashids.decode(id_without_prefix)
-      return fallback_value unless valid?(decoded_hashid)
-
-      decoded_hashid.last || fallback_value
+      if fallback && !valid?(decoded_hashid)
+        fallback_value
+      else
+        decoded_hashid.last
+      end
     end
 
     private

lib/prefixed_ids/version.rb

@@ -1,3 +1,3 @@
 module PrefixedIds
-  VERSION = "1.4.0"
+  VERSION = "1.5.0"
 end

test/dummy/app/models/team.rb

@@ -0,0 +1,3 @@
+class Team < ApplicationRecord
+  has_prefix_id :team, fallback: false
+end

test/dummy/db/migrate/20230322131821_create_teams.rb

@@ -0,0 +1,8 @@
+class CreateTeams < ActiveRecord::Migration[7.0]
+  def change
+    create_table :teams do |t|
+
+      t.timestamps
+    end
+  end
+end

test/dummy/db/schema.rb

@@ -10,23 +10,28 @@
 #
 # It's strongly recommended that you check this file into your version control system.
 
-ActiveRecord::Schema.define(version: 2021_05_03_145247) do
+ActiveRecord::Schema[7.0].define(version: 2023_03_22_131821) do
   create_table "accounts", force: :cascade do |t|
     t.integer "user_id"
-    t.datetime "created_at", precision: 6, null: false
-    t.datetime "updated_at", precision: 6, null: false
+    t.datetime "created_at", null: false
+    t.datetime "updated_at", null: false
   end
 
   create_table "posts", force: :cascade do |t|
     t.integer "user_id", null: false
-    t.datetime "created_at", precision: 6, null: false
-    t.datetime "updated_at", precision: 6, null: false
+    t.datetime "created_at", null: false
+    t.datetime "updated_at", null: false
     t.index ["user_id"], name: "index_posts_on_user_id"
   end
 
+  create_table "teams", force: :cascade do |t|
+    t.datetime "created_at", null: false
+    t.datetime "updated_at", null: false
+  end
+
   create_table "users", force: :cascade do |t|
-    t.datetime "created_at", precision: 6, null: false
-    t.datetime "updated_at", precision: 6, null: false
+    t.datetime "created_at", null: false
+    t.datetime "updated_at", null: false
   end
 
   add_foreign_key "posts", "users"

test/dummy/test/models/team_test.rb

@@ -0,0 +1,7 @@
+require "test_helper"
+
+class TeamTest < ActiveSupport::TestCase
+  # test "the truth" do
+  #   assert true
+  # end
+end

test/fixtures/teams.yml

@@ -0,0 +1,8 @@
+# Read about fixtures at https://api.rubyonrails.org/classes/ActiveRecord/FixtureSet.html
+
+# This model initially had no columns defined. If you add columns to the
+# model remove the "{}" from the fixture names and add the columns immediately
+# below each fixture, per the syntax in the comments below
+#
+one: {}
+two: {}

test/prefixed_ids_test.rb

@@ -148,4 +148,19 @@ class PrefixedIdsTest < ActiveSupport::TestCase
   test "can override salt on model" do
     assert_equal "accountsabcd", Account._prefix_id.hashids.salt
   end
+
+  test "decode with fallback false returns nil for regular ID" do
+    assert_nil Team._prefix_id.decode(1)
+  end
+
+  test "disabled fallback allows find by prefix id" do
+    team = Team.find_by(id: ActiveRecord::FixtureSet.identify(:one))
+    assert_equal team, Team.find(team.prefix_id)
+  end
+
+  test "disabled fallback raises an error if not prefix_id" do
+    assert_raises PrefixedIds::Error do
+      Team.find(ActiveRecord::FixtureSet.identify(:one))
+    end
+  end
 end