Question

我有一个应用程序，用户可以在其位置找到一顿饭，然后他可以按类别细化。（餐和类别是不同的模型）。

凭借我现在拥有的东西，我可以从它的位置找到一顿饭，但是当我精炼它时，显示所有其他的饭菜......

如何在内存中保持＆＃34;＆＃34;位置，然后按类别过滤？

meals_controller.rb

class MealsController < ApplicationController

  before_action :find_meal, only: [:show, :update, :edit, :destroy]


  def index
    filter_by_location if params[:query].present?
    meal_filter = MealsFilter.new(params)
    @meals ||= meal_filter.filter
    @meals_count = @meals.count
    #add_markers_on_map
    @categories = Category.all
  end

  #[other actions come here]

  private

  def find_meal
    @meal = Meal.find(params[:id])
  end

  def meal_params
    params.require(:meal)
    .permit(:menu_name,
            :price,
            :portion,
            :availability,
            :category_id,
            :location,
            images: [],
            ingredients_attributes: [:id, :name, :_destroy])
  end


  def filter_by_location
    @meals = Meal.search(params[:query][:location]) if params[:query][:location].present?
  end

end

应用程序/服务/ meals_filter.rb

class MealsFilter

  def initialize(params)
    @params = params
    @meals = Meal.where('availability  >= ?', Date.today )
  end

  def filter
    #filter_by_location
    filter_by_category
    @meals
  end

  private

  def filter_by_category
   if @params[:categories] != nil && @params[:categories].size != 0 && !@params[:categories].include?("all")
     @meals = @meals.joins(:category).where("categories.name IN (?)", @params[:categories])
   end
  end

  # def filter_by_location
  #   @meals = Meal.where('location LIKE?', @params[:query][:location]) if @params[:query][:location].present?
  # end
end

修改

这是我的类别过滤器：

<section class="choice" id="normal-choice">
        <form action="/meals" method="get" class= "normal-form">
          <ul class="list-unstyled">
            <% @categories.each do |category| %>
              <li>
                <label class="categories">
                  <input type="checkbox" name="categories[]" value="<%= category.name %>"
                    <%= "checked" if !params[:categories].nil? && params[:categories].include?(category.name) %>>
                  <span>

                    <%= category.name %>
                  </span>

                </label>
              </li>
            <% end %>
          </ul>
          <input class="valid-btn" type="submit" value="Filtrer">
        </form>
      </section>

Rails搜索位置，然后按类别过滤

修改

0 个答案: