Search using POST-and-Redirect pattern and save data in session

Workflow:

• Data from search form is POSTed to server
• The search data is stored in session
• It redirects to the page to show data

If the page is opened without params then it will restore saved filter from session.

Options

Options for search_filter:

• save_session - set to true,
• search_method - set to :post_and_redirect,
• url - route for index page
• search_url - route for search page
• search_action - name of the action in controller corresponding to :search_url. By default, :search_action = :search

Example:

search_filter :index, {save_session: true, search_method: :post_and_redirect, url: :products_url, search_url: :search_products_url, search_action: :search} do

Workflow

• User submits the filter form;
• Form data are POSTed to page defined by :search_url and processed by controller action defined by :search_action;
• Data for each filter are saved in session;
• It redirects to the page defined by :url.

Routes

if used post method to a separate action (search_method: :post_and_redirect) then a route for search action should be created:

Define route for processiong POST request:

# config/routes.rb

resources :products do
  collection do
    post 'search'
end
end

Example:

class ProductsController < ApplicationController


search_filter :index, {save_session: true, search_method: :post_and_redirect, url: :products_url, search_url: :search_products_url, search_action: :search} do
  default_order "price", 'asc'

  field :title, :string, :text, {label: 'Title', default_value: '', condition: :like_full}

end

def index
	@items = Product.by_filter (@filter)
end


end

Route:

# config/routes.rb

resources :products do
  collection do
    post 'search'
end
end