**ActiveModel::UnknownAttributeError in ExcelsController#create**

rubyonrails-talk
1

Good day ,im usings ruby on rails (version 3) im trying to upload a image on my webpage but i keep on this error ActiveModel::UnknownAttributeError in ExcelsController#create , This is my first project , please help me out

controller/excel_controller.db

class ExcelsController < ApplicationController
  before_action :set_excel, only: %i[ show edit update destroy ]

  # GET /excels or /excels.json
  def index
    @excels = Excel.all
   
  end

  def purge_image
    @excel = Excel.find(params[:id])
    @excel.image.purge
    redirect_back fallback_location: root_path, notice: "success"
  end

  # GET /excels/1 or /excels/1.json
  def show
  end

  # GET /excels/new
  def new
    @excel = Excel.new
  end

  # GET /excels/1/edit
  def edit
  end

  # POST /excels or /excels.json
  def create
    @excel = Excel.new(excel_params)

    respond_to do |format|
      if @excel.save
        format.html { redirect_to @excel, notice: "Excel was successfully created." }
        format.json { render :show, status: :created, location: @excel }
      else
        format.html { render :new, status: :unprocessable_entity }
        format.json { render json: @excel.errors, status: :unprocessable_entity }
      end
    end
  end

  # PATCH/PUT /excels/1 or /excels/1.json
  def update
    respond_to do |format|
      if @excel.update(excel_params)
        format.html { redirect_to @excel, notice: "Excel was successfully updated." }
        format.json { render :show, status: :ok, location: @excel }
      else
        format.html { render :edit, status: :unprocessable_entity }
        format.json { render json: @excel.errors, status: :unprocessable_entity }
      end
    end
  end

  # DELETE /excels/1 or /excels/1.json
  def destroy
    @excel.destroy
    respond_to do |format|
      format.html { redirect_to excels_url, notice: "Excel was successfully destroyed." }
      format.json { head :no_content }
    end
  end

  def import
    Excel.import(params[:file])
    redirect_to excels_path, notice: "excel import successfully"
  end

  private
    # Use callbacks to share common setup or constraints between actions.
    def set_excel
      @excel = Excel.find(params[:id])
    end

    # Only allow a list of trusted parameters through.
    def excel_params
      params.require(:excel).permit(:Ordername, :Order_date, :Baby_name, :which_birthday_is_it, :height_in_cm, :weight_in_kg, :nick_name, :no_of_teeth, :i_love, :i_can, :i_say, :fav_food, :fav_ryhmes, :fav_song, :fav_toy, :add_input, :image)
    end
end

model/excel.rb

class Excel < ApplicationRecord
    def self.import(file)
      CSV.foreach(file.path, headers: true) do |row|
        Excel.create! row.to_hash
        has_one_attached :image
        validates :image, attached: true, dimension: { width: { min: 800, max: 2400 } },
        content_type: [:png, :jpg, :jpeg], size: { less_than: 100.kilobytes , message: 'is not given between size' }
       end
    end
end

view/excels/show.html.rb

<p id="notice"><%= notice %></p>

<p>
  <strong>Order name:</strong>
  <%= @excel.Order_name %>
</p>

<p>
  <strong>Order date:</strong>
  <%= @excel.Order_date %>
</p>

<p>
  <strong>Baby name:</strong>
  <%= @excel.Baby_name %>
</p>

<p>
  <strong>Which birthday is it:</strong>
  <%= @excel.which_birthday_is_it %>
</p>

<p>
  <strong>Height in cm:</strong>
  <%= @excel.height_in_cm %>
</p>

<p>
  <strong>Weight in kg:</strong>
  <%= @excel.weight_in_kg %>
</p>

<p>
  <strong>Nick name:</strong>
  <%= @excel.nick_name %>
</p>

<p>
  <strong>No of teeth:</strong>
  <%= @excel.no_of_teeth %>
</p>

<p>
  <strong>I love:</strong>
  <%= @excel.i_love %>
</p>

<p>
  <strong>I can:</strong>
  <%= @excel.i_can %>
</p>

<p>
  <strong>I say:</strong>
  <%= @excel.i_say %>
</p>

<p>
  <strong>Fav food:</strong>
  <%= @excel.fav_food %>
</p>

<p>
  <strong>Fav ryhmes:</strong>
  <%= @excel.fav_ryhmes %>
</p>

<p>
  <strong>Fav song:</strong>
  <%= @excel.fav_song %>
</p>

<p>
  <strong>Fav toy:</strong>
  <%= @excel.fav_toy %>
</p>

<p>
  <strong>Add input:</strong>
  <%= @excel.add_input %>
</p>

<p>
   <strong>image:</strong>
  <% if @post.image.attached? %>
    <%= image_tag @post.image, width: "200px" %>
    <%= link_to "Delte image", purge_image_post_path(@post), method: :delete %>
  <% end %>
</p>


<%= link_to 'Edit', edit_excel_path(@excel) %> |
<%= link_to 'Back', excels_path %>

index.html.rb

 <tbody>
    <% @excels.each do |excel| %>
      <tr>
        <td><%= excel.Order_name %></td>
        <td><%= excel.Order_date %></td>
        <td><%= excel.Baby_name %></td>
        <td><%= excel.which_birthday_is_it %></td>
        <td><%= excel.height_in_cm %></td>
        <td><%= excel.weight_in_kg %></td>
        <td><%= excel.nick_name %></td>
        <td><%= excel.no_of_teeth %></td>
        <td><%= excel.i_love %></td>
        <td><%= excel.i_can %></td>
        <td><%= excel.i_say %></td>
        <td><%= excel.fav_food %></td>
        <td><%= excel.fav_ryhmes %></td>
        <td><%= excel.fav_song %></td>
        <td><%= excel.fav_toy %></td>
        <td><%= excel.add_input %></td>
        <td><%= excel.image %></td>
        <td><%= link_to 'Show', excel %></td>
        <td><%= link_to 'Edit', edit_excel_path(excel) %></td>
        <td><%= link_to 'Destroy', excel, method: :delete, data: { confirm: 'Are you sure?' } %></td>
      </tr>
    <% end %>
  </tbody>