嗨，我几乎是新来的，遇到了问题。
我制作了一个自定义方法来处理索引控制器，因此我可以触发创建，但作为回报，无论属性是什么，我总是为 nil 类获得 nil，即使在实例变量中返回值也是如此。
我确实尝试使用 restful rails 'create' 更改方法，但仍然返回相同的内容。
最奇怪的是……有时它会起作用。
我应该怎么办？
提前致谢。
这是我的代码：
setup_controller
skip_before_filter :authorize
def index
@countries = Country.all(:order => 'iso_code')
@users = User.all
@company = Company.new
end
def create_company
@company = Company.new(company_params)
if @company.save!
@company.create_uoms
@company.create_product_statuses
redirect_to login_path #default_uom_setup_path(company: @company)
flash[:notice] = "Thank you. Please login to proceed"
else
flash[:notice] = "Error creating company. Please try again."
redirect_to :controller => 'setup', :action => 'index'
end
end
index.html.erb
<h3>Please Enter the New Company Details</h3>
<%= form_for :company, :url => {:controller => 'setup', :action => 'create_company', :method => 'post'}, :html=>{:multipart=>true} do |form| %>
<table>
<tr><td>Name </td> <td><%= form.text_field :name %> </td></tr>
<tr><td>Address 1 </td> <td><%= form.text_field :address_1 %> </td></tr>
<tr><td>Address 2 </td> <td><%= form.text_field :address_2 %> </td></tr>
<tr><td>City </td> <td><%= form.text_field :city %> </td></tr>
<tr><td>Country </td> <td><%= form.select :country_id, @countries.collect {|c| [c.iso_code, c.id] } %> </td></tr>
<tr><td>Logo File </td> <td><%= form.file_field :logo_filename %> </td></tr>
</table>
<%= submit_tag "Create Companies" %>
<% end %>
路线
resources :setup do
collection do
post 'create_company'
get '/:company/default_uom_setup', to: 'setup#default_uom_setup', as: "default_uom"
get '/:company/create_warehouses', to: 'setup#create_warehouses', as: "create_warehouses"
end
end
公司.erb
class Company < ActiveRecord::Base
belongs_to :country
has_many :warehouses
has_many :products
has_many :customers
has_many :customer_types
has_many :purchase_order_types
has_many :purchase_orders
has_many :receipt_types
has_many :orders
has_many :order_types
has_many :product_statuses
has_many :product_categories
has_many :suppliers
has_many :uoms
has_many :assignment_types
has_many :product_subcategories
has_many :volume_uoms
has_many :quantity_uoms
has_many :weight_uoms
has_many :dimension_uoms
validates :name, uniqueness: true
validates :name, :address_1, :city, :country_id, presence: true
def default_quantity_uom
@default_quantity_uom = QuantityUom.find(self.default_quantity_uom_id)
end
def default_weight_uom
@default_weight_uom = WeightUom.find(self.default_weight_uom_id)
end
def default_length_uom
@default_length_uom = DimensionUom.find(self.default_length_uom_id)
end
def create_uoms
quantity_uoms = QuantityUom.create([ {code: "EACH", description: "Each", name: "Each", discrete: true, company_id: self.id},
{code: "CASE", description: "Case", name: "Case", discrete: true, company_id: self.id},
{code: "PALT", description: "Pallet", name: "Pallet", discrete: true, company_id: self.id},
{code: "UNIT", description: "Unit", name: "Unit", discrete: true, company_id: self.id}])
dimension_uoms = DimensionUom.create([{code: "M", description: "Meter", name: "Meter", discrete: true, company_id: self.id},
{code: "FT", description: "Foot", name: "Foot", discrete: true, company_id: self.id},
{code: "IN", description: "Inch", name: "Inch", discrete: true, company_id: self.id}])
weight_uoms = WeightUom.create([{code: "LP", description: "Pound", name: "Pound", discrete: true, company_id: self.id},
{code: "KG", description: "Kilogram", name: "Kilogram", discrete: true, company_id: self.id}])
volume_uoms = VolumeUom.create([ {code: "M3", description: "Cubic Meter", name: "Cu M", discrete: true, company_id: self.id},
{code: "FT3", description: "Cubic Foot", name: "Cu Ft", discrete: true, company_id: self.id},
{code: "I3", description: "Cubic Inch", name: "Cu In", discrete: true, company_id: self.id}])
end
def create_product_statuses
product_statuses = ProductStatus.create([
{code: "AV", description: "Available", allocatable: true, company_id: self.id },
{code: "DM", description: "Damaged", allocatable: false, company_id: self.id },
{code: "HD", description: "On-Hold", allocatable: false, company_id: self.id },
{code: "QA", description: "Quality Audit", allocatable: false, company_id: self.id }])
end
end
错误
Started POST "/setup/create_company" for 127.0.0.1 at 2013-08-14 17:23:23 +0700
Processing by SetupController#create_company as HTML
Parameters: {"utf8"=>"✓", "authenticity_token"=>"23batLaNe7Z1Xa17PsrDS/av26J/zkLnw3QN15/y6ic=", "company"=>{"name"=>"fdsfsdf", "address_1"=>"asdfasdfasdf", "address_2"=>"asdfasdfasdfadsfasd", "city"=>"asdfasdfadfasdfasdfasdfdas", "country_id"=>"1", "logo_filename"=>#<ActionDispatch::Http::UploadedFile:0xb3c14838 @tempfile=#<Tempfile:/tmp/RackMultipart20130814-11385-18dve10>, @original_filename="Domikado.png", @content_type="image/png", @headers="Content-Disposition: form-data; name=\"company[logo_filename]\"; filename=\"Domikado.png\"\r\nContent-Type: image/png\r\n">}, "commit"=>"Create Companies"}
User Load (0.8ms) SELECT `users`.* FROM `users` WHERE `users`.`id` = 1 LIMIT 1
(0.3ms) BEGIN
Company Exists (0.6ms) SELECT 1 AS one FROM `companies` WHERE `companies`.`name` = BINARY 'fdsfsdf' LIMIT 1
(0.4ms) ROLLBACK
Completed 500 Internal Server Error in 43ms
NoMethodError - undefined method `name' for nil:NilClass:
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