我已经在几个小时内对抗这个问题了。当我尝试创建拍卖时,我有一个禁止属性错误;我到处寻找答案,但没有一个能奏效。这是我的代码: 这是我的整个控制器...
class AuctionsController < ApplicationController
load_and_authorize_resource
def index
end
def show
end
def new
end
def edit
end
def create
@auction = Auction.new(auction_params)
respond_to do |format|
if @auction.save
format.html { redirect_to @auction, notice: 'Auction was successfully created.' }
format.json { render action: 'show', status: :created, location: @auction }
else
format.html { render action: 'new' }
format.json { render json: @auction.errors, status: :unprocessable_entity }
end
end
end
def update
respond_to do |format|
if @auction.update(auction_params)
format.html { redirect_to @auction, notice: 'Auction was successfully updated.' }
format.json { head :no_content }
else
format.html { render action: 'edit' }
format.json { render json: @auction.errors, status: :unprocessable_entity }
end
end
end
def destroy
@auction.destroy
respond_to do |format|
format.html { redirect_to auctions_url }
format.json { head :no_content }
end
end
private
def auction_params
params.require(:auction).permit(:title, :price, :image)
end
end
我现在得到一个禁止属性错误;我不知道为什么会这样。这是我的迁移:
class AddAttachmentImageToAuctions < ActiveRecord::Migration
def self.up
change_table :auctions do |t|
t.attachment :image
end
end
def self.down
remove_attachment :auctions, :image
end
end
和
class CreateAuctions < ActiveRecord::Migration
def change
create_table :auctions do |t|
t.string :title
t.string :price
t.timestamps
end
end
end
这是我的表格:
<%= form_for(@auction) do |f| %>
<% if @auction.errors.any? %>
<div id="error_explanation">
<h2><%= pluralize(@auction.errors.count, "error") %> prohibited this auction from being saved:</h2>
<ul>
<% @auction.errors.full_messages.each do |msg| %>
<li><%= msg %></li>
<% end %>
</ul>
</div>
<% end %>
<div class="field">
<%= f.label :title %><br>
<%= f.text_field :title %>
</div>
<div class="field">
<%= f.label :price %><br>
<%= f.text_field :price %>
</div><br />
<div class="field">
<%= f.file_field :image %>
</div>
<div class="actions">
<%= f.submit %>
</div>
<% end %>
由于参数丢失错误,我甚至无法获取发布请求的日志...抱歉。 以下是我得到的确切错误...编辑:由于mandeep,此错误已解决。现在它只是paperclip对象的Forbidden Attributes错误:
ActiveModel::ForbiddenAttributesError in AuctionsController#create
ActiveModel::ForbiddenAttributesError
Rails.root: /Users/claymccullough/Desktop/cybocars
Application Trace | Framework Trace | Full Trace
Request
Parameters:
{"utf8"=>"✓",
"authenticity_token"=>"MeQb0/xWREQ4imyYl5nDRy5KioyePs6PYe7ARXyaSTs=",
"auction"=>{"title"=>"",
"price"=>""},
"commit"=>"Create Auction"}
当我尝试在表单上发布POST时,以下是完整日志:
Started POST "/auctions" for 127.0.0.1 at 2014-10-05 14:34:10 -0500
Started POST "/auctions" for 127.0.0.1 at 2014-10-05 14:34:10 -0500
Processing by AuctionsController#create as HTML
Processing by AuctionsController#create as HTML
Parameters: {"utf8"=>"✓", "authenticity_token"=>"MeQb0/xWREQ4imyYl5nDRy5KioyePs6PYe7ARXyaSTs=", "auction"=>{"title"=>"", "price"=>""}, "commit"=>"Create Auction"}
Parameters: {"utf8"=>"✓", "authenticity_token"=>"MeQb0/xWREQ4imyYl5nDRy5KioyePs6PYe7ARXyaSTs=", "auction"=>{"title"=>"", "price"=>""}, "commit"=>"Create Auction"}
Completed 500 Internal Server Error in 2ms
Completed 500 Internal Server Error in 2ms
ActiveModel::ForbiddenAttributesError (ActiveModel::ForbiddenAttributesError):
activemodel (4.0.8) lib/active_model/forbidden_attributes_protection.rb:21:in `sanitize_for_mass_assignment'
activerecord (4.0.8) lib/active_record/attribute_assignment.rb:21:in `assign_attributes'
activerecord (4.0.8) lib/active_record/core.rb:469:in `init_attributes'
activerecord (4.0.8) lib/active_record/core.rb:185:in `initialize'
activerecord (4.0.8) lib/active_record/inheritance.rb:30:in `new'
activerecord (4.0.8) lib/active_record/inheritance.rb:30:in `new'
cancan (1.6.10) lib/cancan/controller_resource.rb:85:in `build_resource'
cancan (1.6.10) lib/cancan/controller_resource.rb:66:in `load_resource_instance'
cancan (1.6.10) lib/cancan/controller_resource.rb:32:in `load_resource'
cancan (1.6.10) lib/cancan/controller_resource.rb:25:in `load_and_authorize_resource'
cancan (1.6.10) lib/cancan/controller_resource.rb:10:in `block in add_before_filter'
activesupport (4.0.8) lib/active_support/callbacks.rb:407:in `_run__1086883359883225076__process_action__callbacks'
activesupport (4.0.8) lib/active_support/callbacks.rb:80:in `run_callbacks'
actionpack (4.0.8) lib/abstract_controller/callbacks.rb:17:in `process_action'
actionpack (4.0.8) lib/action_controller/metal/rescue.rb:29:in `process_action'
actionpack (4.0.8) lib/action_controller/metal/instrumentation.rb:31:in `block in process_action'
activesupport (4.0.8) lib/active_support/notifications.rb:159:in `block in instrument'
activesupport (4.0.8) lib/active_support/notifications/instrumenter.rb:20:in `instrument'
activesupport (4.0.8) lib/active_support/notifications.rb:159:in `instrument'
actionpack (4.0.8) lib/action_controller/metal/instrumentation.rb:30:in `process_action'
actionpack (4.0.8) lib/action_controller/metal/params_wrapper.rb:250:in `process_action'
activerecord (4.0.8) lib/active_record/railties/controller_runtime.rb:18:in `process_action'
actionpack (4.0.8) lib/abstract_controller/base.rb:136:in `process'
actionpack (4.0.8) lib/abstract_controller/rendering.rb:44:in `process'
actionpack (4.0.8) lib/action_controller/metal.rb:195:in `dispatch'
actionpack (4.0.8) lib/action_controller/metal/rack_delegation.rb:13:in `dispatch'
actionpack (4.0.8) lib/action_controller/metal.rb:231:in `block in action'
actionpack (4.0.8) lib/action_dispatch/routing/route_set.rb:82:in `call'
actionpack (4.0.8) lib/action_dispatch/routing/route_set.rb:82:in `dispatch'
actionpack (4.0.8) lib/action_dispatch/routing/route_set.rb:50:in `call'
actionpack (4.0.8) lib/action_dispatch/journey/router.rb:71:in `block in call'
actionpack (4.0.8) lib/action_dispatch/journey/router.rb:59:in `each'
actionpack (4.0.8) lib/action_dispatch/journey/router.rb:59:in `call'
actionpack (4.0.8) lib/action_dispatch/routing/route_set.rb:676:in `call'
warden (1.2.3) lib/warden/manager.rb:35:in `block in call'
warden (1.2.3) lib/warden/manager.rb:34:in `catch'
warden (1.2.3) lib/warden/manager.rb:34: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 (4.0.8) lib/action_dispatch/middleware/params_parser.rb:27:in `call'
actionpack (4.0.8) 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 (4.0.8) lib/action_dispatch/middleware/cookies.rb:486:in `call'
activerecord (4.0.8) lib/active_record/query_cache.rb:36:in `call'
activerecord (4.0.8) lib/active_record/connection_adapters/abstract/connection_pool.rb:626:in `call'
activerecord (4.0.8) lib/active_record/migration.rb:373:in `call'
actionpack (4.0.8) lib/action_dispatch/middleware/callbacks.rb:29:in `block in call'
activesupport (4.0.8) lib/active_support/callbacks.rb:373:in `_run__4322106486789320703__call__callbacks'
activesupport (4.0.8) lib/active_support/callbacks.rb:80:in `run_callbacks'
actionpack (4.0.8) lib/action_dispatch/middleware/callbacks.rb:27:in `call'
actionpack (4.0.8) lib/action_dispatch/middleware/reloader.rb:64:in `call'
actionpack (4.0.8) lib/action_dispatch/middleware/remote_ip.rb:76:in `call'
actionpack (4.0.8) lib/action_dispatch/middleware/debug_exceptions.rb:17:in `call'
actionpack (4.0.8) lib/action_dispatch/middleware/show_exceptions.rb:30:in `call'
railties (4.0.8) lib/rails/rack/logger.rb:38:in `call_app'
railties (4.0.8) lib/rails/rack/logger.rb:20:in `block in call'
activesupport (4.0.8) lib/active_support/tagged_logging.rb:68:in `block in tagged'
activesupport (4.0.8) lib/active_support/tagged_logging.rb:26:in `tagged'
activesupport (4.0.8) lib/active_support/tagged_logging.rb:68:in `tagged'
railties (4.0.8) lib/rails/rack/logger.rb:20:in `call'
actionpack (4.0.8) 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 (4.0.8) lib/active_support/cache/strategy/local_cache.rb:83:in `call'
rack (1.5.2) lib/rack/lock.rb:17:in `call'
actionpack (4.0.8) lib/action_dispatch/middleware/static.rb:64:in `call'
rack (1.5.2) lib/rack/sendfile.rb:112:in `call'
railties (4.0.8) lib/rails/engine.rb:511:in `call'
railties (4.0.8) 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'
rack (1.5.2) lib/rack/handler/webrick.rb:60:in `service'
/Users/claymccullough/.rvm/rubies/ruby-2.0.0-p247/lib/ruby/2.0.0/webrick/httpserver.rb:138:in `service'
/Users/claymccullough/.rvm/rubies/ruby-2.0.0-p247/lib/ruby/2.0.0/webrick/httpserver.rb:94:in `run'
/Users/claymccullough/.rvm/rubies/ruby-2.0.0-p247/lib/ruby/2.0.0/webrick/server.rb:295:in `block in start_thread'
答案 0 :(得分:1)
我终于发现了什么是错的。我在控制器中错过了两条神奇的线:这是固定控制器。我希望这可以帮助其他有这个问题的人。
class AuctionsController < ApplicationController
before_action :set_auction, only: [:show, :edit, :update, :destroy]
# GET /auctions
# GET /auctions.json
def index
@auctions = Auction.all
end
# GET /auctions/1
# GET /auctions/1.json
def show
end
# GET /auctions/new
def new
@auction = Auction.new
end
# GET /auctions/1/edit
def edit
end
# POST /auctions
# POST /auctions.json
def create
@auction = Auction.new(auction_params)
respond_to do |format|
if @auction.save
format.html { redirect_to @auction, notice: 'Auction was successfully created.' }
format.json { render action: 'show', status: :created, location: @auction }
else
format.html { render action: 'new' }
format.json { render json: @auction.errors, status: :unprocessable_entity }
end
end
end
# PATCH/PUT /auctions/1
# PATCH/PUT /auctions/1.json
def update
respond_to do |format|
if @auction.update(auction_params)
format.html { redirect_to @auction, notice: 'Auction was successfully updated.' }
format.json { head :no_content }
else
format.html { render action: 'edit' }
format.json { render json: @auction.errors, status: :unprocessable_entity }
end
end
end
# DELETE /auctions/1
# DELETE /auctions/1.json
def destroy
@auction.destroy
respond_to do |format|
format.html { redirect_to auctions_url }
format.json { head :no_content }
end
end
private
# Use callbacks to share common setup or constraints between actions.
def set_auction
@auction = Auction.find(params[:id])
end
# Never trust parameters from the scary internet, only allow the white list through.
def auction_params
params.require(:auction).permit(:title, :price, :image)
end
end
谢谢Mandeep帮助我。