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我有产品数据库，我使用Thinking Sphinx搜索它们。我有一组非常复杂的条件来在正确的类别和详细信息中找到正确的产品。但是，我想优化搜索，以便我可以对产品的价格和数量进行限制，它们都是 Product 模型的浮动属性。

例如：

1.9.2p290 :014 > Product.search('eggs').map { |p| "#{p.name}, $#{p.price}" }
  Sphinx Query (4.6ms)  eggs
  Sphinx  Found 984 results
  Product Load (0.9ms)  SELECT "products".* FROM "products" WHERE "products"."id" IN (7635, 7636, 7637, 7638, 7639, 7640, 7641, 7642, 7643, 7644, 7645, 7646, 7647, 7648, 7650, 7651, 7652, 7653, 7654, 7655)
[
    [ 0] "Egg Beaters Pour Spout, $2.89",
    [ 1] "Fleischman Regular Egg Beaters Egg Substitute, $3.09",
    [ 2] "Fleischman Southwest Egg Beaters Egg Substitute, $2.89",
    [ 3] "Lucerne Best Of The Egg, $2.79",
    [ 4] "Lucerne Best Of The Egg, $2.69",
    [ 5] "Lucerne Best Of The Egg, $5.29",
    [ 6] "Lucerne Best Of The Egg Whites, $2.79",
    [ 7] "Lucerne Best Of The Egg Whites, $5.29",
    [ 8] "Papetti Foods All Whites Liquid Egg Whites, $5.89",
    [ 9] "Papetti Foods Healthier Real Egg Product Better N Eggs, $5.89",
    [10] "Papettis 100% All Egg Whites, $2.5",
    [11] "Eating Right Eggs With Omega A, $3.99",
    [12] "Egglands Best Cage Free Large Eggs, $3.29",
    [13] "Egglands Best Cage Free Large Grade AA Brown Eggs, $4.39",
    [14] "Egglands Best Classic Large Eggs, $5.49",
    [15] "Egglands Best Grade AA Large Eggs, $4.09",
    [16] "Hard Boiled Eggs Peeled And Ready To Eat, $1.49",
    [17] "Land O Lakes Cage Free All Natural Large Grade A Brown Eggs, $4.39",
    [18] "Land O Lakes Farm Fresh Extra Large Brown Eggs, $2.49",
    [19] "Land O Lakes Organic All Natural Large Grade A Brown Eggs, $5.49"
]



1.9.2p290 :015 > Product.search('eggs').class
ThinkingSphinx::Search < Array



1.9.2p290 :016 > Product.search('eggs').where("price < ?", 3)
NoMethodError:   Sphinx Query (5.5ms)  eggs
  Sphinx  Found 984 results
  Product Load (0.8ms)  SELECT "products".* FROM "products" WHERE "products"."id" IN (7635, 7636, 7637, 7638, 7639, 7640, 7641, 7642, 7643, 7644, 7645, 7646, 7647, 7648, 7650, 7651, 7652, 7653, 7654, 7655)
undefined method `where' for #<ThinkingSphinx::Search:0x007feaf30e1880>
  from /Users/neil/.rvm/gems/ruby-1.9.2-p290/gems/thinking-sphinx-2.0.10/lib/thinking_sphinx/search.rb:174:in `method_missing'
  from (irb):16
  from /Users/neil/.rvm/gems/ruby-1.9.2-p290/gems/railties-3.2.5/lib/rails/commands/console.rb:47:in `start'
  from /Users/neil/.rvm/gems/ruby-1.9.2-p290/gems/railties-3.2.5/lib/rails/commands/console.rb:8:in `start'
  from /Users/neil/.rvm/gems/ruby-1.9.2-p290/gems/railties-3.2.5/lib/rails/commands.rb:41:in `<top (required)>'
  from script/rails:6:in `require'
  from script/rails:6:in `<main>'

如何在 TS find 的匹配文本之后使用 ActiveRelation 来优化我的搜索？

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1 回答 1

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这应该有效：

Product.search 'eggs', :with => {:price => price, :quantity => quantity}

假设您有三个不同的输入框来定义搜索字符串 ( 'eggs')、theprice和 the quantity，我会在尝试搜索完全匹配时使用类似这样的内容：

scope = params[:query].present? Product.search params[:query] : scope = Product.search nil

scope = scope.search with: { :price => params[:price] } if params[:price].present?
scope = scope.search with: { :price => params[:quantity] } if params[:quantity].present?

@products = scope

但这不会过滤“低于 x 的价格”或“x 和 y 之间的数量”。为此，您需要使用范围，因为thinking-sphinx。例如，如果您要搜索价格低于给定值的产品：

Product.search 'eggs', :with => {:price => 0..value}

这将返回与查询匹配'eggs'且价格介于 0 和给定值之间的产品。

如果要搜索价格高于给定值的产品：

Product.search 'eggs', :with => {:price => value..Float::MAX}

这将返回与查询匹配的产品'eggs'，其价格在给定值和最大可表示有限浮点数之间。

于 2012-08-29T09:06:16.213 回答