我的搜索方法如下：
class Machine < ActiveRecord::Base
def filter_search(params, order_query = 'machines.updated_at desc')
ts_query = ''
attribute_filters = { order: order_query.gsub(/.*?\./, ''),
conditions: {},
with: {},
limit: 50000,
max_matches: Machine::MAX_TS_MATCHES
}
# ... more methods dismissed
if params[:currency].present?
with_null_currency = "*, IF(currency_attr = #{params[:currency]} OR currency_attr = 0, 1, 0) as my_currency"
attribute_filters[:select] = with_null_currency
attribute_filters[:with][:my_currency] = 1
end
if params[:machine_ad_type_rent] == 'rent' && params[:machine_ad_type_sale].blank?
with_rent_ad_mask = "*, IF(ad_mask_attr = 1 OR ad_mask_attr = 3, 1, 0) as my_rent_ad_mask"
attribute_filters[:select] = with_rent_ad_mask
attribute_filters[:with][:my_rent_ad_mask] = 1
end
ids = Machine.search_for_ids(Riddle::Query.escape(ts_query), attribute_filters)
machines = machines.where(id: ids).order(order_query)
end
end
这些条件分开运作：
2.0.0p353 :005 > Machine.filter_search(currency: 1)
Sphinx Query (6.8ms) SELECT *, IF(currency_attr = 1 OR currency_attr = 0, 1, 0) as my_currency FROM `machine_core` WHERE `my_currency` = 1 AND `sphinx_deleted` = 0 ORDER BY `updated_at` desc LIMIT 0, 50000 OPTION max_matches=500000
Sphinx Found 85 results
2.0.0p353 :006 > Machine.filter_search(machine_ad_type_rent: 'rent')
Sphinx Query (7.0ms) SELECT *, IF(ad_mask_attr = 1 OR ad_mask_attr = 3, 1, 0) as my_rent_ad_mask FROM `machine_core` WHERE `my_rent_ad_mask` = 1 AND `sphinx_deleted` = 0 ORDER BY `updated_at` desc LIMIT 0, 50000 OPTION max_matches=500000
Sphinx Found 118 results
但如果我尝试用这两个参数进行搜索，它就会失败：
2.0.0p353 :007 > Machine.filter_search(machine_ad_type_rent: 'rent', currency: 1)
Sphinx Retrying query "SELECT *, IF(ad_mask_attr = 1 OR ad_mask_attr = 3, 1, 0) as my_rent_ad_mask FROM `machine_core` WHERE `my_currency` = 1 AND `my_rent_ad_mask` = 1 AND `sphinx_deleted` = 0 ORDER BY `updated_at` desc LIMIT 0, 50000 OPTION max_matches=500000; SHOW META" after error: index machine_core: no such filter attribute 'my_currency' - SELECT *, IF(ad_mask_attr = 1 OR ad_mask_attr = 3, 1, 0) as my_rent_ad_mask FROM `machine_core` WHERE `my_currency` = 1 AND `my_rent_ad_mask` = 1 AND `sphinx_deleted` = 0 ORDER BY `updated_at` desc LIMIT 0, 50000 OPTION max_matches=500000; SHOW META
Sphinx Retrying query "SELECT *, IF(ad_mask_attr = 1 OR ad_mask_attr = 3, 1, 0) as my_rent_ad_mask FROM `machine_core` WHERE `my_currency` = 1 AND `my_rent_ad_mask` = 1 AND `sphinx_deleted` = 0 ORDER BY `updated_at` desc LIMIT 0, 50000 OPTION max_matches=500000; SHOW META" after error: index machine_core: no such filter attribute 'my_currency' - SELECT *, IF(ad_mask_attr = 1 OR ad_mask_attr = 3, 1, 0) as my_rent_ad_mask FROM `machine_core` WHERE `my_currency` = 1 AND `my_rent_ad_mask` = 1 AND `sphinx_deleted` = 0 ORDER BY `updated_at` desc LIMIT 0, 50000 OPTION max_matches=500000; SHOW META
Sphinx Query (16.5ms) SELECT *, IF(ad_mask_attr = 1 OR ad_mask_attr = 3, 1, 0) as my_rent_ad_mask FROM `machine_core` WHERE `my_currency` = 1 AND `my_rent_ad_mask` = 1 AND `sphinx_deleted` = 0 ORDER BY `updated_at` desc LIMIT 0, 50000 OPTION max_matches=500000
ThinkingSphinx::SphinxError: index machine_core: no such filter attribute 'my_currency' - SELECT *, IF(ad_mask_attr = 1 OR ad_mask_attr = 3, 1, 0) as my_rent_ad_mask FROM `machine_core` WHERE `my_currency` = 1 AND `my_rent_ad_mask` = 1 AND `sphinx_deleted` = 0 ORDER BY `updated_at` desc LIMIT 0, 50000 OPTION max_matches=500000; SHOW META
from /Users/serj/.rvm/gems/ruby-2.0.0-p353@gearup/gems/thinking-sphinx-3.1.1/lib/thinking_sphinx/connection.rb:91:in `rescue in query'
from /Users/serj/.rvm/gems/ruby-2.0.0-p353@gearup/gems/thinking-sphinx-3.1.1/lib/thinking_sphinx/connection.rb:94:in `query'
from /Users/serj/.rvm/gems/ruby-2.0.0-p353@gearup/gems/thinking-sphinx-3.1.1/lib/thinking_sphinx/connection.rb:75:in `query_all'
from /Users/serj/.rvm/gems/ruby-2.0.0-p353@gearup/gems/thinking-sphinx-3.1.1/lib/thinking_sphinx/search/batch_inquirer.rb:17:in `block in results'
from /Users/serj/.rvm/gems/ruby-2.0.0-p353@gearup/gems/thinking-sphinx-3.1.1/lib/thinking_sphinx/connection.rb:37:in `block in take'
from /Users/serj/.rvm/gems/ruby-2.0.0-p353@gearup/gems/innertube-1.1.0/lib/innertube.rb:138:in `take'
from /Users/serj/.rvm/gems/ruby-2.0.0-p353@gearup/gems/thinking-sphinx-3.1.1/lib/thinking_sphinx/connection.rb:35:in `take'
from /Users/serj/.rvm/gems/ruby-2.0.0-p353@gearup/gems/thinking-sphinx-3.1.1/lib/thinking_sphinx/search/batch_inquirer.rb:16:in `results'
from /Users/serj/.rvm/gems/ruby-2.0.0-p353@gearup/gems/thinking-sphinx-3.1.1/lib/thinking_sphinx/middlewares/inquirer.rb:9:in `block in call'
from /Users/serj/.rvm/gems/ruby-2.0.0-p353@gearup/gems/activesupport-4.1.1/lib/active_support/notifications.rb:159:in `block in instrument'
from /Users/serj/.rvm/gems/ruby-2.0.0-p353@gearup/gems/activesupport-4.1.1/lib/active_support/notifications/instrumenter.rb:20:in `instrument'
from /Users/serj/.rvm/gems/ruby-2.0.0-p353@gearup/gems/activesupport-4.1.1/lib/active_support/notifications.rb:159:in `instrument'
from /Users/serj/.rvm/gems/ruby-2.0.0-p353@gearup/gems/thinking-sphinx-3.1.1/lib/thinking_sphinx/logger.rb:3:in `log'
from /Users/serj/.rvm/gems/ruby-2.0.0-p353@gearup/gems/thinking-sphinx-3.1.1/lib/thinking_sphinx/middlewares/inquirer.rb:8:in `call'
from /Users/serj/.rvm/gems/ruby-2.0.0-p353@gearup/gems/thinking-sphinx-3.1.1/lib/thinking_sphinx/middlewares/geographer.rb:11:in `call'
from /Users/serj/.rvm/gems/ruby-2.0.0-p353@gearup/gems/thinking-sphinx-3.1.1/lib/thinking_sphinx/middlewares/sphinxql.rb:14:in `call'
... 16 levels...
from /Users/serj/.rvm/gems/ruby-2.0.0-p353@gearup/gems/railties-4.1.1/lib/rails/commands/console.rb:9:in `start'
from /Users/serj/.rvm/gems/ruby-2.0.0-p353@gearup/gems/railties-4.1.1/lib/rails/commands/commands_tasks.rb:69:in `console'
from /Users/serj/.rvm/gems/ruby-2.0.0-p353@gearup/gems/railties-4.1.1/lib/rails/commands/commands_tasks.rb:40:in `run_command!'
from /Users/serj/.rvm/gems/ruby-2.0.0-p353@gearup/gems/railties-4.1.1/lib/rails/commands.rb:17:in `<top (required)>'
from /Users/serj/.rvm/gems/ruby-2.0.0-p353@gearup/gems/activesupport-4.1.1/lib/active_support/dependencies.rb:247:in `require'
from /Users/serj/.rvm/gems/ruby-2.0.0-p353@gearup/gems/activesupport-4.1.1/lib/active_support/dependencies.rb:247:in `block in require'
from /Users/serj/.rvm/gems/ruby-2.0.0-p353@gearup/gems/activesupport-4.1.1/lib/active_support/dependencies.rb:232:in `load_dependency'
from /Users/serj/.rvm/gems/ruby-2.0.0-p353@gearup/gems/activesupport-4.1.1/lib/active_support/dependencies.rb:247:in `require'
from /Users/serj/Projects/gearup/bin/rails:8:in `<top (required)>'
from /Users/serj/.rvm/gems/ruby-2.0.0-p353@gearup/gems/activesupport-4.1.1/lib/active_support/dependencies.rb:241:in `load'
from /Users/serj/.rvm/gems/ruby-2.0.0-p353@gearup/gems/activesupport-4.1.1/lib/active_support/dependencies.rb:241:in `block in load'
from /Users/serj/.rvm/gems/ruby-2.0.0-p353@gearup/gems/activesupport-4.1.1/lib/active_support/dependencies.rb:232:in `load_dependency'
from /Users/serj/.rvm/gems/ruby-2.0.0-p353@gearup/gems/activesupport-4.1.1/lib/active_support/dependencies.rb:241:in `load'
from /Users/serj/.rvm/rubies/ruby-2.0.0-p353/lib/ruby/site_ruby/2.0.0/rubygems/core_ext/kernel_require.rb:55:in `require'
from /Users/serj/.rvm/rubies/ruby-2.0.0-p353/lib/ruby/site_ruby/2.0.0/rubygems/core_ext/kernel_require.rb:55:in `require'
有没有办法一起使用它并仍然执行单个Thinking Sphinx查询来搜索？
答案 0 :(得分：4)
这里的诀窍是你需要将SELECT子句组成碎片：
select = ['*']
if params[:currency].present?
select << "IF(currency_attr = #{params[:currency]} OR currency_attr = 0, 1, 0) as my_currency"
attribute_filters[:with][:my_currency] = 1
end
if params[:machine_ad_type_rent] == 'rent' && params[:machine_ad_type_sale].blank?
select << "IF(ad_mask_attr = 1 OR ad_mask_attr = 3, 1, 0) as my_rent_ad_mask"
attribute_filters[:with][:my_rent_ad_mask] = 1
end
attribute_filters[:select] = select.join(', ')
ids = Machine.search_for_ids(Riddle::Query.escape(ts_query), attribute_filters)