Data not deleted from the sqlite3 table - ruby-on-rails

Question

I am new in ruby. I want to delete record. But unable to delete. Please check my code -
ruby_win_sources/index.html.erb
<table border="1" cellpadding="1" cellspacing="1" width="100%">
<thead>
<tr>
<th>Name</th>
<th>Author</th>
<th>Url</th>
<th colspan="3">Action</th>
</tr>
</thead>
<tbody>
<% #ruby_win_sources.each do |ruby_win_source| %>
<tr>
<td><%= ruby_win_source.name %></td>
<td><%= ruby_win_source.author %></td>
<td><%= ruby_win_source.url %></td>
<td><%= link_to 'Show', ruby_win_source %></td>
<td><%= link_to 'Edit', edit_ruby_win_source_path(ruby_win_source) %></td>
<td><%= link_to 'Destroy', ruby_win_source, method: :destroy, data: { confirm: 'Are you sure?' } %></td>
</tr>
<% end %>
</tbody>
</table>
ruby_win_sources_controller.rb
class RubyWinSourcesController < ApplicationController
before_action :set_ruby_win_source, only: [:show, :edit, :update, :destroy]
# GET /ruby_win_sources
# GET /ruby_win_sources.json
def index
#ruby_win_sources = RubyWinSource.all
end
# GET /ruby_win_sources/1
# GET /ruby_win_sources/1.json
def show
end
# GET /ruby_win_sources/new
def new
#ruby_win_source = RubyWinSource.new
end
# GET /ruby_win_sources/1/edit
def edit
end
# POST /ruby_win_sources
# POST /ruby_win_sources.json
def create
#ruby_win_source = RubyWinSource.new(ruby_win_source_params)
respond_to do |format|
if #ruby_win_source.save
format.html { redirect_to #ruby_win_source, notice: 'Ruby win source was successfully created.' }
format.json { render :show, status: :created, location: #ruby_win_source }
else
format.html { render :new }
format.json { render json: #ruby_win_source.errors, status: :unprocessable_entity }
end
end
end
# PATCH/PUT /ruby_win_sources/1
# PATCH/PUT /ruby_win_sources/1.json
def update
respond_to do |format|
if #ruby_win_source.update(ruby_win_source_params)
format.html { redirect_to #ruby_win_source, notice: 'Ruby win source was successfully updated.' }
format.json { render :show, status: :ok, location: #ruby_win_source }
else
format.html { render :edit }
format.json { render json: #ruby_win_source.errors, status: :unprocessable_entity }
end
end
end
# DELETE /ruby_win_sources/1
# DELETE /ruby_win_sources/1.json
def destroy
#ruby_win_source.destroy
respond_to do |format|
format.html { redirect_to ruby_win_sources_url, notice: 'Ruby win source was successfully destroyed.' }
format.json { head :no_content }
end
end
private
# Use callbacks to share common setup or constraints between actions.
def set_ruby_win_source
#ruby_win_source = RubyWinSource.find(params[:id])
end
# Never trust parameters from the scary internet, only allow the white list through.
def ruby_win_source_params
params.require(:ruby_win_source).permit(:name, :author, :url)
end
end
Delete confirm box not opening.
Please help me
Edit -
routes.rb
Rails.application.routes.draw do
resources :ruby_win_sources
end

Answer 1

You drop your database rake db:drop and then rake db:migrate to create your tables

Answer 2

I think your link_to to delete is incorrect and should be like this:
<%= link_to 'Destroy', ruby_win_source, method: :delete, data: { confirm: 'Are you sure?' } %>
Then update your controller destroy method to:
# DELETE /ruby_win_sources/1
# DELETE /ruby_win_sources/1.json
def destroy
RubyWinSource.find_by_id(params[:id]).destroy
respond_to do |format|
format.html { redirect_to ruby_win_sources_url, notice: 'Ruby win source was successfully destroyed.' }
format.json { head :no_content }
end
end

Answer 3

Make a delete request while destroying an object:
<td><%= link_to 'Destroy', ruby_win_source, method: :delete, data: { confirm: 'Are you sure?' } %></td>
Your controller looks good since you are setting
before_action :set_ruby_win_source, only: [:show, :edit, :update, :destroy]
So you already have #ruby_win_source before destroy action gets executed.