我在我的 rails 项目中使用了轮胎和弹性搜索，这是一个汽车零件的零售网站。ES 正在为用于浏览零件目录的多面搜索页面提供支持。我的问题是：如何使术语过滤器在使用查询字符串搜索相同字段时仅返回完全匹配，仅在查询字符串上使用分析器？
我希望这是有道理的。我将尝试提供一个示例：
有问题的模型/索引称为零件。假设零件具有称为categories和的映射sub_categories。如果用户选择了 Brake类别和 Brake Caliper Carrier子类别（创建术语过滤器），我必须确保不返回 Brake Caliper子类别中的零件——它是一个单独的子类别。但是，我确实希望用户能够在搜索字段中简单地输入“刹车”之类的内容（创建一个 query_string），并从所有这些类别中的产品中获取结果。
以下是 Part 模型的相关代码：
def to_indexed_json
fits = fitments.try(:map) do |fit|
{
make: fit.try(:make).try(:name),
make_id: fit.try(:make).try(:id),
model: fit.try(:model).try(:name),
model_id: fit.try(:model).try(:id),
year: fit.year,
sub_model: fit.sub_model
}
end
{
id: id,
name: name,
description: description,
fitments: fits,
categories: root_categories,
sub_categories: sub_categories,
price: price,
condition_id: condition_id,
country_of_origin: country_of_origin,
brand: brand,
oem: oem,
thumb_url: part_images.first.try(:image).try(:thumb).try(:url),
city: user.try(:city),
inventory: inventory,
part_number: part_number,
user: user.try(:public_name)
}.to_json
end
mapping do
indexes :id, type: 'integer'
indexes :name, analyzer: 'snowball', boost: 40
indexes :description, analyzer: 'snowball', boost: 12
indexes :price, type: "integer"
indexes :country_of_origin, index: :not_analyzed
indexes :condition_id, type: "integer"
indexes :brand, index: :not_analyzed
indexes :oem, type: "boolean"
indexes :city, index: :not_analyzed
indexes :inventory, type: "integer"
indexes :part_number, index: :not_analyzed
indexes :user, index: :not_analyzed
indexes :thumb_url, index: :not_analyzed
indexes :fitments do
indexes :make
indexes :make_id, type: "integer" #, index: 'not_analyzed'
indexes :model
indexes :model_id, type: "integer" #, index: 'not_analyzed'
indexes :year, type: "integer"
indexes :sub_model
end
indexes :categories do
indexes :name, index: :not_analyzed
indexes :id, type: "integer"
end
indexes :sub_categories do
indexes :name, index: :not_analyzed
indexes :id, type: "integer"
end
end
def search(params={})
query_filters = []
tire.search(:page => params[:page], :per_page => 20) do
query_filters << { :term => { 'fitments.make_id' => params[:make] }} if params[:make].present?
query_filters << { :term => { 'fitments.model_id' => params[:model] }} if params[:model].present?
query_filters << { :term => { 'categories.name' => params[:category] }} if params[:category].present?
query_filters << { :term => { 'sub_categories.name' => params[:sub_category] }} if params[:sub_category].present?
query_filters << { :term => { 'city' => params[:city] }} if params[:city].present?
query_filters << { :term => { 'condition_id' => params[:condition] }} if params[:condition].present?
query_filters << { :term => { 'brand' => params[:brand] }} if params[:brand].present?
query_filters << { :term => { 'oem' => params[:oem] }} if params[:oem].present?
query do
filtered do
query {
if params[:query].present?
string params[:query]
else
all
end
}
filter :and, query_filters unless query_filters.empty?
end
end
facet("categories") { terms 'categories.name', size: 50 } unless params[:category].present?
facet("cities") { terms 'city', size: 50 } unless params[:city].present?
if params[:category].present? && !params[:sub_category].present?
facet("sub_categories") { terms 'sub_categories.name', size: 50 }
end
facet("condition_id") { terms 'condition_id', size: 50 } unless params[:condition].present?
facet("brand") { terms 'brand', size: 50 } unless params[:brand].present?
facet("oem") { terms 'oem', size: 2 } unless params[:oem].present?
size params[:size] if params[:size]
end
end