Ruby on rails 从高级搜索表单保存搜索选项

我有一个高级搜索表单，我想为用户提供一个保存选项的选项。我怎样才能做到这一点

用户应该能够填写高级搜索表单的选项，然后单击“保存此搜索”链接，该链接将存储他们的选项。有了这个功能，每个用户都将拥有自己的自定义默认搜索选项，因此每次访问时都不必重新输入详细信息

我想这对很多人将来都会有帮助

搜索控制器：

 def new
    @search = Search.new
    render layout: 'new_application'
  end

  def create
    @search = Search.new(params[:search])
    if @search.save
        redirect_to @search
    else
      render 'new'
    end
  end

  def show
    @user = current_user
    @search = Search.find(params[:id])
    @users = @search.users
    render 'users/index', layout: 'new_application'    
  end

  def update
    @search = Search.find(params[:id])
    if @search.update_attributes(params[:search])
        redirect_to @search
    else
      render 'new'
    end
  end

  def index
    if location = Location.find_by_zipcode(params[:search])
        latitude  = location.latitude * Math::PI / 180 
        longitude = location.longitude * Math::PI / 180 

        locations = Location.search( 
          :geo   => [latitude, longitude], 
          :with  => {:geodist => 0.0..600_000.0}, 
          :order => 'geodist ASC',
          :per_page => 5_000
        ) 
        @users = User.where(zip_code: locations.map(&:zipcode))


          else
            @users = User.search(params[:search])
        end      
      end

  def min_age
    @min_age = params[:min_age].to_i.years
  end

  def max_age
    @max_age = params[:max_age].to_i.years
  end

  def youngest_age
  @youngest_age = params[:youngest_age].years
  end

  def oldest_age
  @oldest_age = params[:oldest_age].years
   end
end

搜索模型：

 def users
    @users ||= find_users
  end

    private

    def find_users
      users = User.order(:id)
      users = users.where(gender: gender) if gender.present?
      users = users.where(zip_code: zip_code) if zip_code.present?
      users = users.where(children: children) if children.present?
      users = users.where(religion: religion) if religion.present?
      users = users.where(ethnicity: ethnicity) if ethnicity.present?

      if min_age.present? && max_age.present?
        min = [ min_age, max_age ].min
        max = [ min_age, max_age ].max
        min_date = Date.today - min.years
        max_date = Date.today - max.years
        users = users.where("birthday BETWEEN ? AND ?", max_date, min_date)
        users
      end
      users
    end
  end

搜索表格：

  a.adv_search href="#" 
    = image_tag "adv_link.png"
    span Advanced Search
  = form_for @search do |f|
    .form_container
      .row
        .col
          label I am a
          select.large
            option Female
            option Male
        .select2
          .col.col2
            label Seeking
            = f.select :gender, %w(Female Male)
        .select1
          .col.col3
            label Ages
            = f.select :min_age, options_for_select((18..50),25), {}, {class: 'small'}
        .select5
          .col.col4
            label to
            = f.select :max_age, options_for_select((20..50),45), {}, {class: 'small'}
      .row
        .col.col5
          label Near
          = f.text_field :zip_code,placeholder: "enter zip here", class: 'text_input'
        .col.col6
          = f.select :children, ['I want kids now','I want one someday'], prompt: 'child preference'

        .select4
          .col.col6
            = f.select :religion, ['Agnostic', 'Atheist', 'Christian', 'Catholic', 'Buddhist', 'Hindu', 'Jewish', 'Muslim', 'Spiritual without affiliation', 'Other', 'None', 'Prefer not to say'], prompt: 'Religion'
        .select4
          .col.col7
            = f.select :ethnicity, ['Asian', 'Biracial', 'Indian', 'Hispanic/Latin', 'Middle Eastern', 'Native American', 'Pacific Islander', 'White', 'Other'], prompt: 'Ethnicity'
      .btm_sec
        ul.form_list
          li
            a href="#" 
              = image_tag "form_icon1.png"
              span.color Save this Search
          li
            a href="#" 
              = image_tag "form_icon2.png"
              span Load
          li
            a href="#" 
              = image_tag "form_icon3.png"
              span Reset
        input.find_btn type="submit" value="Find" /
    .btm_search_detail

---

如果不想将它们存储在模型中，最好是存储在序列化哈希中。我已经为一个需要管理员保存其首选项/设置的应用程序完成了这项工作。我试过很多宝石，最后我用了

即，在您的用户模型中，您可以执行以下操作：

class User < ActiveRecord::Base
  has_settings do |s|
    s.key :search_options,  :defaults => { :gender => 'male'}
  end
end

---

我喜欢这种方法的地方在于它的脚印很低，如果您开始发现可伸缩性问题，那么很容易将其剥离出来并实现完整的优化模型。

持久性

我个人希望将您的数据保存在另一个关联模型中，如下所示：

#app/models/user.rb
Class User < ActiveRecord::Base
   has_one :search
   delegate :input, :advanced, :options, to: :search, prefix: true
end

#app/models/search.rb
Class Search < ActiveRecord::Base
   #fields id | user_id | input | other | advanced | options | created_at | updated_at
   belongs_to :user
end

这将使您能够使用特定于用户的高级选项填充表单：

#app/views/shared/_search.html.erb
<%= form_tag search_path do |f| %>
    <%= text_field_tag :search, value: @search_option %>
    <%= submit_tag "Search" %>
<% end %>

---

我想，在查看了您的代码之后，一种更简洁的管理方法是使用关联来管理搜索对象：）

我在修复损坏的保存搜索功能时偶然发现了这一点，请确保在将来搜索表单更改时更新您保存的所有序列化搜索参数。

#app/controllers/application_controller.rb
Class ApplicationController < ActionController::Base
   before_action :set_search

   private

   def set_search
      @search_option = current_user.search_input if user_signed_in?
   end
end

#app/views/shared/_search.html.erb
<%= form_tag search_path do |f| %>
    <%= text_field_tag :search, value: @search_option %>
    <%= submit_tag "Search" %>
<% end %>

#app/controllers/searches_controller.rb
Class SearchesController < ApplicationController
   def create
      current_user.search.create(input: params[:input], etc: "value") if params[:save_defaults].present?
   end
end