在 Rails 3 上 Ruby 中出现加载错误

Question

您好，我在使用 Rails3 制作一个表单时遇到以下错误。

错误：

LoadError in SdfsController#edit

Expected C:/Site/swargadwar_admin/app/models/t_sdf.rb to define T_sdf
Rails.root: C:/Site/swargadwar_admin

Application Trace | Framework Trace | Full Trace
app/controllers/sdfs_controller.rb:6:in `edit'

第二个错误：

ActiveRecord::StatementInvalid in SdfsController#create

Mysql::Error: Out of range value for column 'Donation_Amount' at row 1: INSERT INTO `t_sdfs` (`Brahmin`, `Created_By`, `Date_Of_Death`, `Deceased_Address1`, `Deceased_Address2`, `Deceased_Block`, `Deceased_Country`, `Deceased_Dist`, `Deceased_Name`, `Deceased_PS`, `Deceased_State`, `Deceased_Village`, `Donation_Amount`, `Donation_Date`, `Doner_Address1`, `Doner_Address2`, `Doner_Block`, `Doner_Country`, `Doner_Dist`, `Doner_MobileNo`, `Doner_Name`, `Doner_PS`, `Doner_Photo`, `Doner_Relationship_ID`, `Doner_Relationship_Other`, `Doner_State`, `Doner_Thumb`, `Doner_Video`, `Doner_Village`, `HCSY_Status`, `Photo`, `Updated_By`, `created_at`, `receipt_no`, `updated_at`) VALUES (?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?)
Rails.root: C:/Site/swargadwar_admin

Application Trace | Framework Trace | Full Trace
app/controllers/sdfs_controller.rb:10:in `create'

我在下面解释我的代码，请检查这些并让我知道它将如何解决。

model/t_sdf.rb

  class TSdf < ActiveRecord::Base
      attr_accessible :Brahmin, :Created_By, :Date_Of_Death, :Deceased_Address1, :Deceased_Address2, :Deceased_Block, :Deceased_Country, :Deceased_Dist, :Deceased_Name, :Deceased_PS, :Deceased_State, :Deceased_Village, :Donation_Amount, :Donation_Date, :Doner_Address1, :Doner_Address2, :Doner_Block, :Doner_Country, :Doner_Dist, :Doner_MobileNo, :Doner_Name, :Doner_PS, :Doner_Photo, :Doner_Relationship_ID, :Doner_Relationship_Other, :Doner_State, :Doner_Thumb, :Doner_Video, :Doner_Village, :HCSY_Status, :Photo, :Updated_By, :receipt_no
   mount_uploader :Photo, PhotoUploader
   mount_uploader :Doner_Photo, DonerPhotoUploader
    end

controller/sdfs_controller.rb

class SdfsController < ApplicationController
    def new

    end
    def edit
        @sdf=T_sdf.new
    end
    def create
        @sdf=T_sdf.new(params[:sdf])
        if @sdf.save
            flash[:notice]="Data saved successfully"
            flash[:color]="valid"
            redirect_to :action => 'new', :controller => "admins"
        else
            flash[:alert]="Data could not saved"
            flash[:color]="invalid"
            render 'edit'
        end
    end
end

views/sdfs/edit.html.erb

<center>
    <%= form_for :sdf,:url => {:action => "create" } do |f| %>
    <p>
        <label for= "name">Deceased Name</label>
        <%= f.text_field :Deceased_Name %>
    </p>
    <p>
        <label for ="name">Deceased Address-1</label>
        <%= f.text_field :Deceased_Address1 %>
    </p>
    <p>
        <label for "name">Deceased Address-2</label>
        <%= f.text_field :Deceased_Address2 %>
    </p>
    <p>
        <label for ="name">Deceased Village</label>
        <%= f.text_field :Deceased_Village %>
    </p>
    <p>
        <label for= "name">Deceased Block</label>
        <%= f.text_field :Deceased_Block %>
    </p>
    <p>
        <label for ="name">Deceased Dist</label>
        <%= f.text_field :Deceased_Dist %>
    </p>
    <p>
        <label for ="name">Deceased State</label>
        <%= f.text_field :Deceased_State %>
    </p>
    <p>
        <label for ="name">Deceased country</label>
        <%= f.text_field :Deceased_Country %>
    </p>
    <p>
        <label for= "name">Deceased PS</label>
        <%= f.text_field :Deceased_PS %>
    </p>
    <p>
        <label for ="name">Date of Death</label>
        <%= f.text_field :Date_Of_Death,:id => "popupDatepicker" %>
    </p>
    <p>
        <label for ="name">Doner Name</label>
        <%= f.text_field :Doner_Name %>
    </p>
    <p>
        <label for= "name">Doner mobile no</label>
        <%= f.telephone_field :Doner_MobileNo %>
    </p>
    <p>
        <label for ="name">Doner relationship id</label>
        <%= f.text_field :Doner_Relationship_ID %>
    </p>
    <p>
        <label for ="name">Other relation ship id</label>
        <%= f.text_field :Doner_Relationship_Other %>
    </p>
    <p>
        <label for ="name">Doner Address-1</label>
        <%= f.text_field :Doner_Address1 %>
    </p>
    <p>
        <label for= "name">Doner Address-2</label>
        <%= f.text_field :Doner_Address2 %>
    </p>
    <p>
        <label for= "name">Doner Village</label>
        <%= f.text_field :Doner_Village %>
    </p>
    <p>
        <label for= "name">Doner Block</label>
        <%= f.text_field :Doner_Block %>
    </p>
    <p>
        <label for ="name">Doner Dist</label>
        <%= f.text_field :Doner_Dist %>
    </p>
    <p>
        <label for ="name">Doner State</label>
        <%= f.text_field :Doner_State %>
    </p>
    <p>
        <label for= "name">Doner Country</label>
        <%= f.text_field :Doner_Country %>
    </p>
    <p>
        <label for= "name">Doner PS</label>
        <%= f.text_field :Doner_PS %>
    </p>
    <p>
        <label for ="name">Donation Amount</label>
        <%= f.text_field :Donation_Amount %>
    </p>
    <p>
        <label for ="name">Donation date</label>
        <%= f.date_field :Donation_Date %>
    </p>
    <p>
        <label for= "name">Photo</label>
        <%= f.file_field :Photo %>
    </p>
    <p>
        <label for ="name">Doner photo</label>
        <%= f.date_field :Doner_Photo %>
    </p>
    <p>
        <label for="name">Bramhin</label>
        <%= f.date_field :Brahmin %>
    </p>
    <p>
        <label for= "name">Created</label>
        <%= f.number_field :Created_By %>
    </p>
    <p>
        <label for ="name">Updated</label>
        <%= f.number_field :Updated_By %>
    </p>
    <p>
        <label for ="name">HCSY Status</label>
         Yes:<%= f.radio_button :HCSY_Status,'Yes',:checked => true %>
         No: <%= f.radio_button :HCSY_Status,'No' %>
    </p>
    <p>
        <%= f.submit "Submit" %>
    </p>
    <% end %>
</center>

migrate/20150407215437_create_t_sdfs.rb

class CreateTSdfs < ActiveRecord::Migration
  def change
    create_table :t_sdfs do |t|
      t.string :receipt_no
      t.string :Deceased_Name
      t.string :Deceased_Address1
      t.string :Deceased_Address2
      t.string :Deceased_Village
      t.string :Deceased_Block
      t.string :Deceased_Dist
      t.string :Deceased_State
      t.string :Deceased_Country
      t.string :Deceased_PS
      t.date :Date_Of_Death
      t.string :Doner_Name
      t.string :Doner_MobileNo
      t.integer :Doner_Relationship_ID
      t.string :Doner_Relationship_Other
      t.string :Doner_Address1
      t.string :Doner_Address2
      t.string :Doner_Village
      t.string :Doner_Block
      t.string :Doner_Dist
      t.string :Doner_State
      t.string :Doner_Country
      t.string :Doner_PS
      t.decimal :Donation_Amount, :precision => 3, :scale => 0
      t.datetime :Donation_Date
      t.string :Photo
      t.string :Doner_Photo
      t.string :Doner_Thumb
      t.string :Doner_Video
      t.string :Brahmin
      t.boolean :HCSY_Status
      t.integer :Created_By
      t.integer :Updated_By

      t.timestamps
    end
  end
end

请帮我解决这个错误。

Answer 1

在您的控制器中，将 class 名称 T_sdf 更改为 TSdf。

def edit
  @sdf=TSdf.new
end

在 Rails 3 上 Ruby 中出现加载错误

Getting Load error in Ruby on Rails 3

ruby

ruby-on-rails-3

model/t_sdf.rb

controller/sdfs_controller.rb

views/sdfs/edit.html.erb

migrate/20150407215437_create_t_sdfs.rb