Class: Blazer::UploadsController

Inherits:
BaseController
  • Object
show all
Defined in:
app/controllers/blazer/uploads_controller.rb

Instance Method Summary collapse

Instance Method Details

#create ⇒ Object 



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# File 'app/controllers/blazer/uploads_controller.rb', line 14

def create
  @upload = Blazer::Upload.new(upload_params)
  # use creator_id instead of creator
  # since we setup association without checking if column exists
  @upload.creator = blazer_user if @upload.respond_to?(:creator_id=) && blazer_user

  success = params.require(:upload).key?(:file)
  if success
    Blazer::Upload.transaction do
      success = @upload.save
      if success
        begin
          update_file(@upload)
        rescue CSV::MalformedCSVError, Blazer::UploadError => e
          @upload.errors.add(:base, e.message)
          success = false
          raise ActiveRecord::Rollback
        end
      end
    end
  else
    @upload.errors.add(:base, "File can't be blank")
  end

  if success
    redirect_to upload_path(@upload)
  else
    render_errors @upload
  end
end

#destroy ⇒ Object 



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# File 'app/controllers/blazer/uploads_controller.rb', line 81

def destroy
  Blazer.uploads_connection.execute("DROP TABLE IF EXISTS #{@upload.table_name}")
  @upload.destroy
  redirect_to uploads_path
end

#edit ⇒ Object 



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# File 'app/controllers/blazer/uploads_controller.rb', line 49

def edit
end

#index ⇒ Object 



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# File 'app/controllers/blazer/uploads_controller.rb', line 6

def index
  @uploads = Blazer::Upload.order(:table)
end

#new ⇒ Object 



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# File 'app/controllers/blazer/uploads_controller.rb', line 10

def new
  @upload = Blazer::Upload.new
end

#show ⇒ Object 



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# File 'app/controllers/blazer/uploads_controller.rb', line 45

def show
  redirect_to new_query_path(upload_id: @upload.id)
end

#update ⇒ Object 



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# File 'app/controllers/blazer/uploads_controller.rb', line 52

def update
  original_table = @upload.table
  @upload.assign_attributes(upload_params)

  success = nil
  Blazer::Upload.transaction do
    success = @upload.save
    if success
      if params.require(:upload).key?(:file)
        begin
          update_file(@upload, drop: original_table)
        rescue CSV::MalformedCSVError, Blazer::UploadError => e
          @upload.errors.add(:base, e.message)
          success = false
          raise ActiveRecord::Rollback
        end
      elsif @upload.table != original_table
        Blazer.uploads_connection.execute("ALTER TABLE #{Blazer.uploads_table_name(original_table)} RENAME TO #{Blazer.uploads_connection.quote_table_name(@upload.table)}")
      end
    end
  end

  if success
    redirect_to upload_path(@upload)
  else
    render_errors @upload
  end
end