小编mik*_*aby的帖子

使用特定的mysql索引和rails

我有这个ActiveRecord查询

issue = Issue.find(id)
issue.articles.includes(:category).merge(Category.where(permalink: perma))
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并将其翻译成mysql查询

SELECT `articles`.`id` AS t0_r0, `articles`.`title` AS t0_r1, 
       `articles`.`hypertitle` AS t0_r2, `articles`.`html` AS t0_r3,
       `articles`.`author` AS t0_r4, `articles`.`published` AS t0_r5,
       `articles`.`category_id` AS t0_r6, `articles`.`issue_id` AS t0_r7,
       `articles`.`date` AS t0_r8, `articles`.`created_at` AS t0_r9, 
       `articles`.`updated_at` AS t0_r10, `articles`.`photo_file_name` AS t0_r11,
       `articles`.`photo_content_type` AS t0_r12, `articles`.`photo_file_size` AS t0_r13,
       `articles`.`photo_updated_at` AS t0_r14, `categories`.`id` AS t1_r0,
       `categories`.`name` AS t1_r1, `categories`.`permalink` AS t1_r2,
       `categories`.`created_at` AS t1_r3, `categories`.`updated_at` AS t1_r4,
       `categories`.`issued` AS t1_r5, `categories`.`order_articles` AS t1_r6 
        FROM `articles` LEFT OUTER JOIN `categories` …
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ruby mysql activerecord ruby-on-rails

12
推荐指数
2
解决办法
6353
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Webpack 2:在插件之前运行加载程序

我想在插件之前运行加载程序,特别是我想先运行handlebar-template-loader,然后运行将插件解析为javascript代码的插件,或者如果我可以使用编译器解析器。

webpack webpack-2

5
推荐指数
0
解决办法
397
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activerecord ×1

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