Ruby on rails 过滤科学化和全球化

filterrific似乎没有考虑翻译表中的内容（）

是否也可以搜索翻译表？如果内容在实际模型中，我的设置工作得非常好。但是，一旦字段为空且仅输入到翻译表中，则不会显示任何结果（显然）

我的模型：

class Manual < ApplicationRecord
  translates :title, :content, :teaser, :slug

  extend FriendlyId
  friendly_id :title, :use => :globalize

  belongs_to :user
  belongs_to :support_category
  has_many :manual_faqs
  has_many :faqs, :through => :manual_faqs

  validates :title, presence: true
  validates :content, presence: true
  validates :user_id, presence: true

  update_index('manuals#manual') { self }

  filterrific(
      default_filter_params: { sorted_by: 'created_at_desc' },
      available_filters: [
          :sorted_by,
          :search_query,
          :with_user_id,
          :with_created_at_gte
      ]
  )

  scope :with_user_id, lambda { |user_ids|
    where(user_id: [*user_ids])
  }

  scope :search_query, lambda { |query|
    # Searches the students table on the 'first_name' and 'last_name' columns.
    # Matches using LIKE, automatically appends '%' to each term.
    # LIKE is case INsensitive with MySQL, however it is case
    # sensitive with PostGreSQL. To make it work in both worlds,
    # we downcase everything.
    return nil  if query.blank?

    # condition query, parse into individual keywords
    terms = query.downcase.split(/\s+/)

    # replace "*" with "%" for wildcard searches,
    # append '%', remove duplicate '%'s
    terms = terms.map { |e|
      ('%' + e.gsub('*', '%') + '%').gsub(/%+/, '%')
    }
    # configure number of OR conditions for provision
    # of interpolation arguments. Adjust this if you
    # change the number of OR conditions.
    num_or_conds = 2
    where(
        terms.map { |term|
          "(LOWER(manuals.title) LIKE ? OR LOWER(manuals.content) LIKE ?)"
        }.join(' AND '),
        *terms.map { |e| [e] * num_or_conds }.flatten
    )
  }

  scope :sorted_by, lambda { |sort_option|
    # extract the sort direction from the param value.
    direction = (sort_option =~ /desc$/) ? 'desc' : 'asc'
    case sort_option.to_s
      when /^created_at_/
        # Simple sort on the created_at column.
        # Make sure to include the table name to avoid ambiguous column names.
        # Joining on other tables is quite common in Filterrific, and almost
        # every ActiveRecord table has a 'created_at' column.
        order("manuals.created_at #{ direction }")
      else
        raise(ArgumentError, "Invalid sort option: #{ sort_option.inspect }")
    end
  }

  scope :created_at_gte, lambda { |reference_time|
    where('manuals.created_at >= ?', reference_time)
  }

  def self.options_for_sorted_by
    [
        ['Date received (newest first)', 'created_at_desc'],
        ['Date received (oldest first)', 'created_at_asc']
    ]
  end
end

---

我一点也不知道filterrific，但我知道Globalize，因为filterrific是基于AR范围的，所以只需加入转换表就可以得到显示的结果

以下是您的

search\u查询

范围，已修改为加入并搜索已加入的翻译表（为了清晰起见，不带注释）：

请注意，我只更改了两件事：（1）我添加了一个方法，用于连接当前区域设置的翻译；（2）我将

manuals

表替换为查询中的

manual\u translations

表

因此，如果您在英语区域设置中调用此查询：

Manual.search_query("foo")

您将获得以下SQL：

SELECT "manuals".* FROM "manuals"
INNER JOIN "manual_translations" ON "manual_translations"."manual_id" = "manuals"."id"
WHERE (LOWER(manual_translations.title) LIKE '%foo%' OR
       LOWER(manual_translations.content) LIKE '%foo%')
      AND "manual_translations"."locale" = 'en'"

请注意，

with_translations

会自动在该

manual_translations.locale='en'

上添加标签，因此您只能过滤出您所在区域设置中的结果，我假设这就是您想要的结果

---

让我知道这是否适合你。

谢谢克里斯！工作起来很有魅力！伟大的我注意到，

where

查询的复杂性超出了必要的范围，因此简化了一点（见上文）。抱歉，我弄错了，修复了它。现在应该可以了，稍微短一点。

Manual.search_query("foo")

SELECT "manuals".* FROM "manuals"
INNER JOIN "manual_translations" ON "manual_translations"."manual_id" = "manuals"."id"
WHERE (LOWER(manual_translations.title) LIKE '%foo%' OR
       LOWER(manual_translations.content) LIKE '%foo%')
      AND "manual_translations"."locale" = 'en'"