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PORuby on Rails 4.0 Linux - StrongParameters sets parameters to nil before returning - I think
 

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    <p>Currently, StrongParameters is serving up and error due to the fact that <code>:password</code> and <code>:password_confirmation</code> are not permitted and I believe that's correct because I think I'm only supposed to have the values I want to write to the DB get a permitted key so there must be something wrong with this flow despite doing a tutorial that lead me to this point. Bcrypt should be called to encrypt <code>:password</code>, assign that to <code>:password_hash</code> and discard <code>:password</code> so <code>StrongParameters</code> should never even sees <code>:password</code>, right? I'm not sure how to do that as I thought this code would do that...</p> <p>Here are my files:</p> <p>User Model:</p> <pre><code>class User &lt; ActiveRecord::Base attr_accessor :password before_save :encrypt_password validates_presence_of :password, :on =&gt; :create validates :password_confirmation, :email, presence: true validates :password, confirmation: true validates :email, uniqueness: true def encrypt_password if password.present? self.password_salt = BCrypt::Engine.generate_salt self.password_hash = BCrypt::Engine.hash_secret(password, password_salt) end end end </code></pre> <p>User Controller:</p> <pre><code>class UsersController &lt; ApplicationController def new @user = User.new end def create debugger @user = User.new(params[user_params]) if @user.save redirect_to root_url, :notice =&gt; "Signup was succsessful!" else render 'new' end end private def user_params user_params = params.require(:user).permit(:email, :password_salt, :password_hash) end end </code></pre> <p>Output via debug server:</p> <pre><code>Started POST "/users" for 127.0.0.1 at 2013-10-28 21:42:47 -0700 Processing by UsersController#create as HTML Parameters: {"utf8"=&gt;"✓", "authenticity_token"=&gt;"/Qij3/MBTqhB+Q1mZjD5PoimOa37z/jjCY0FMSnPtZA=", "user"=&gt;{"email"=&gt;"test@email.com", "password"=&gt;"[FILTERED]", "password_confirmation"=&gt;"[FILTERED]"}, "commit"=&gt;"Create User"} /home/user/web/gather/app/controllers/users_controller.rb:8 @user = User.new(params[user_params]) [3, 12] in /home/user/web/gather/app/controllers/users_controller.rb 3 @user = User.new 4 end 5 6 def create 7 debugger =&gt; 8 @user = User.new(params[user_params]) 9 if @user.save 10 redirect_to root_url, :notice =&gt; "Signup was succsessful!" 11 else 12 render 'new' (rdb:6) c /home/user/web/gather/app/controllers/users_controller.rb:21 user_params = params.require(:user).permit(:email, :password_salt, :password_hash) [16, 25] in /home/user/web/gather/app/controllers/users_controller.rb 16 17 private 18 19 def user_params 20 debugger =&gt; 21 user_params = params.require(:user).permit(:email, :password_salt, :password_hash) 22 debugger 23 end 24 25 end (rdb:6) instance_variables [:@_routes, :@_action_has_layout, :@_headers, :@_status, :@_request, :@_response, :@_env, :@_prefixes, :@_lookup_context, :@_action_name, :@_response_body, :@_config, :@_params] (rdb:6) @_params.inspect "{\"utf8\"=&gt;\"✓\", \"authenticity_token\"=&gt;\"/Qij3/MBTqhB+Q1mZjD5PoimOa37z/jjCY0FMSnPtZA=\", \"user\"=&gt;{\"email\"=&gt;\"test@email.com\", \"password\"=&gt;\"goober\", \"password_confirmation\"=&gt;\"goober\"}, \"commit\"=&gt;\"Create User\", \"action\"=&gt;\"create\", \"controller\"=&gt;\"users\"}" (rdb:6) c Unpermitted parameters: password, password_confirmation /home/user/.rvm/gems/ruby-2.0.0-p0/gems/actionpack-4.0.0/lib/action_controller/metal/strong_parameters.rb:271 convert_hashes_to_parameters(key, super) [266, 275] in /home/user/.rvm/gems/ruby-2.0.0-p0/gems/actionpack-4.0.0/lib/action_controller/metal/strong_parameters.rb 266 # 267 # params = ActionController::Parameters.new(person: { name: 'Francesco' }) 268 # params[:person] # =&gt; {"name"=&gt;"Francesco"} 269 # params[:none] # =&gt; nil 270 def [](key) =&gt; 271 convert_hashes_to_parameters(key, super) 272 end 273 274 # Returns a parameter for the given +key+. If the +key+ 275 # can't be found, there are several options: With no other arguments, (rdb:6) c (0.4ms) begin transaction User Exists (0.1ms) SELECT 1 AS one FROM "users" WHERE "users"."email" IS NULL LIMIT 1 (0.1ms) rollback transaction Rendered users/new.html.erb within layouts/application (3.6ms) Completed 200 OK in 42166ms (Views: 31.7ms | ActiveRecord: 0.6ms) </code></pre> <p>I'm sure I'm missing something simple, but I can't figure it out as I'm new to Ruby and Rails and everyone seems to be doing this differently as Rails undergoes development.</p> <p>Thanks in advanced!</p> <p><strong>UPDATE</strong> Changing <code>@user = User.new(params[user_params])</code> to <code>@user = User.new(user_params)</code> gives me the following error:</p> <pre><code>NoMethodError in UsersController#create undefined method `stringify_keys' for 1:Fixnum Extracted source (around line #8): 6 7 8 9 10 11 def create debugger @user = User.new(user_params) if @user.save redirect_to root_url, :notice =&gt; "Signup was succsessful!" else Rails.root: /home/dburke/web/gather Application Trace | Framework Trace | Full Trace activerecord (4.0.0) lib/active_record/attribute_assignment.rb:17:in `assign_attributes' activerecord (4.0.0) lib/active_record/core.rb:192:in `initialize' activerecord (4.0.0) lib/active_record/inheritance.rb:27:in `new' activerecord (4.0.0) lib/active_record/inheritance.rb:27:in `new' app/controllers/users_controller.rb:8:in `create' actionpack (4.0.0) lib/action_controller/metal/implicit_render.rb:4:in `send_action' actionpack (4.0.0) lib/abstract_controller/base.rb:189:in `process_action' actionpack (4.0.0) lib/action_controller/metal/rendering.rb:10:in `process_action' actionpack (4.0.0) lib/abstract_controller/callbacks.rb:18:in `block in process_action' activesupport (4.0.0) lib/active_support/callbacks.rb:403:in `_run__535388504__process_action__callbacks' activesupport (4.0.0) lib/active_support/callbacks.rb:80:in `run_callbacks' actionpack (4.0.0) lib/abstract_controller/callbacks.rb:17:in `process_action' actionpack (4.0.0) lib/action_controller/metal/rescue.rb:29:in `process_action' actionpack (4.0.0) lib/action_controller/metal/instrumentation.rb:31:in `block in process_action' activesupport (4.0.0) lib/active_support/notifications.rb:159:in `block in instrument' activesupport (4.0.0) lib/active_support/notifications/instrumenter.rb:20:in `instrument' activesupport (4.0.0) lib/active_support/notifications.rb:159:in `instrument' actionpack (4.0.0) lib/action_controller/metal/instrumentation.rb:30:in `process_action' actionpack (4.0.0) lib/action_controller/metal/params_wrapper.rb:245:in `process_action' activerecord (4.0.0) lib/active_record/railties/controller_runtime.rb:18:in `process_action' actionpack (4.0.0) lib/abstract_controller/base.rb:136:in `process' actionpack (4.0.0) lib/abstract_controller/rendering.rb:44:in `process' actionpack (4.0.0) lib/action_controller/metal.rb:195:in `dispatch' actionpack (4.0.0) lib/action_controller/metal/rack_delegation.rb:13:in `dispatch' actionpack (4.0.0) lib/action_controller/metal.rb:231:in `block in action' actionpack (4.0.0) lib/action_dispatch/routing/route_set.rb:80:in `call' actionpack (4.0.0) lib/action_dispatch/routing/route_set.rb:80:in `dispatch' actionpack (4.0.0) lib/action_dispatch/routing/route_set.rb:48:in `call' actionpack (4.0.0) lib/action_dispatch/journey/router.rb:71:in `block in call' actionpack (4.0.0) lib/action_dispatch/journey/router.rb:59:in `each' actionpack (4.0.0) lib/action_dispatch/journey/router.rb:59:in `call' actionpack (4.0.0) lib/action_dispatch/routing/route_set.rb:655:in `call' rack (1.5.2) lib/rack/etag.rb:23:in `call' rack (1.5.2) lib/rack/conditionalget.rb:35:in `call' rack (1.5.2) lib/rack/head.rb:11:in `call' actionpack (4.0.0) lib/action_dispatch/middleware/params_parser.rb:27:in `call' actionpack (4.0.0) lib/action_dispatch/middleware/flash.rb:241:in `call' rack (1.5.2) lib/rack/session/abstract/id.rb:225:in `context' rack (1.5.2) lib/rack/session/abstract/id.rb:220:in `call' actionpack (4.0.0) lib/action_dispatch/middleware/cookies.rb:486:in `call' activerecord (4.0.0) lib/active_record/query_cache.rb:36:in `call' activerecord (4.0.0) lib/active_record/connection_adapters/abstract/connection_pool.rb:626:in `call' activerecord (4.0.0) lib/active_record/migration.rb:369:in `call' actionpack (4.0.0) lib/action_dispatch/middleware/callbacks.rb:29:in `block in call' activesupport (4.0.0) lib/active_support/callbacks.rb:373:in `_run__673544566__call__callbacks' activesupport (4.0.0) lib/active_support/callbacks.rb:80:in `run_callbacks' actionpack (4.0.0) lib/action_dispatch/middleware/callbacks.rb:27:in `call' actionpack (4.0.0) lib/action_dispatch/middleware/reloader.rb:64:in `call' actionpack (4.0.0) lib/action_dispatch/middleware/remote_ip.rb:76:in `call' actionpack (4.0.0) lib/action_dispatch/middleware/debug_exceptions.rb:17:in `call' actionpack (4.0.0) lib/action_dispatch/middleware/show_exceptions.rb:30:in `call' railties (4.0.0) lib/rails/rack/logger.rb:38:in `call_app' railties (4.0.0) lib/rails/rack/logger.rb:21:in `block in call' activesupport (4.0.0) lib/active_support/tagged_logging.rb:67:in `block in tagged' activesupport (4.0.0) lib/active_support/tagged_logging.rb:25:in `tagged' activesupport (4.0.0) lib/active_support/tagged_logging.rb:67:in `tagged' railties (4.0.0) lib/rails/rack/logger.rb:21:in `call' actionpack (4.0.0) lib/action_dispatch/middleware/request_id.rb:21:in `call' rack (1.5.2) lib/rack/methodoverride.rb:21:in `call' rack (1.5.2) lib/rack/runtime.rb:17:in `call' activesupport (4.0.0) lib/active_support/cache/strategy/local_cache.rb:83:in `call' rack (1.5.2) lib/rack/lock.rb:17:in `call' actionpack (4.0.0) lib/action_dispatch/middleware/static.rb:64:in `call' railties (4.0.0) lib/rails/engine.rb:511:in `call' railties (4.0.0) lib/rails/application.rb:97:in `call' rack (1.5.2) lib/rack/lock.rb:17:in `call' rack (1.5.2) lib/rack/content_length.rb:14:in `call' railties (4.0.0) lib/rails/rack/debugger.rb:20:in `call' rack (1.5.2) lib/rack/handler/webrick.rb:60:in `service' /home/dburke/.rvm/rubies/ruby-2.0.0-p0/lib/ruby/2.0.0/webrick/httpserver.rb:138:in `service' /home/dburke/.rvm/rubies/ruby-2.0.0-p0/lib/ruby/2.0.0/webrick/httpserver.rb:94:in `run' /home/dburke/.rvm/rubies/ruby-2.0.0-p0/lib/ruby/2.0.0/webrick/server.rb:295:in `block in start_thread' Request Parameters: {"utf8"=&gt;"✓", "authenticity_token"=&gt;"x7HyftWwAGTYw1zRkhD/5OmZM680CRz3FGAm/OtM42w=", "user"=&gt;{"email"=&gt;"dylan.burke@gmail.com", "password"=&gt;"[FILTERED]", "password_confirmation"=&gt;"[FILTERED]"}, "commit"=&gt;"Create User"} </code></pre>
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