Question

我正在公告网站上使用高级搜索引擎。我必须在某个时候使用orderByRaw，因为我需要以复杂的方式订购。问题是它从字面上删除了部分SQL，我不知道如何解决这个问题。

使用链接的查询

  $announcements = Announcement::select('announcements.*')
                               ->getOnline()
                               ->withCitySlug($location)
                               ->withCategory($category_id)
                               ->orderByResearchPageOption()
                               ->get();

这里是模型Announcement本身的有趣部分

  public function scopeOrderByResearchPageOption() {

    return $this->leftJoin('announcement_options', 'announcements.id', '=', 'announcement_options.announcement_id')
                ->orderByRaw('CASE
                              WHEN announcement_options.option_slug = "research_page" then 1 
                              WHEN announcement_options.option_slug = "" then 2 
                              ELSE 3 END')
                ->select('announcements.*'); // to avoid leftJoin bullshit

  }

  public function scopeGetOnline($query) {

    return $query->where('status', '=', 'online');

  }

  public function scopeWithCitySlug($query, $city_slug) {

    if (empty($city_slug)) return $query;

    return $query->where('city_slug', 'LIKE', '%'.$city_slug.'%');

  }

  public function scopeWithCategory($query, $category_id) {

    if ($category_id === FALSE) return $query;

    return $query->join('announcement_categories', 'announcement_categories.announcement_id', '=', 'announcements.id')
                 ->join('categories', 'categories.id', '=', 'announcement_categories.category_id')
                 ->where('categories.id', '=', $category_id);

  }

当我删除查询的orderByResearchPageOption()时，原始SQL是

  array(3) { ["query"]=> string(284) "select `announcements`.* from `announcements` inner join `announcement_categories` on `announcement_categories`.`announcement_id` = `announcements`.`id` inner join `categories` on `categories`.`id` = `announcement_categories`.`category_id` where `status` = ? and `categories`.`id` = ?" ["bindings"]=> array(2) { [0]=> string(6) "online" [1]=> int(11) } ["time"]=> float(1.88) }

它可以完美地工作，但是当我添加它时，它会改变整个查询，我们会丢失绑定逻辑等。

 array(3) { ["query"]=> string(375) "select `announcements`.* from `announcements` left join `announcement_options` on `announcements`.`id` = `announcement_options`.`announcement_id` order by CASE WHEN announcement_options.option_slug = "research_page" then 1 WHEN announcement_options.option_slug = "" then 2 ELSE 3 END" ["bindings"]=> array(0) { } ["time"]=> float(16.12) }

有人知道该怎么做吗？我真的输了，我无法避免这个项目的orderByRaw，我搜索了很多...

另一个想法是在原始SQL中转换所有内容，但它真的不灵活，我更喜欢这种方式：（

谢谢;）

Answer 1

最后这是一个愚蠢的错误，对于任何会遇到类似问题的人来说，不要忘记用当前的`{/ p>替换$this

public function scopeOrderByResearchPageOption($query) {

    return $query->leftJoin('announcement_options', 'announcements.id', '=', 'announcement_options.announcement_id')
                ->orderByRaw('CASE
                              WHEN announcement_options.option_slug = "research_page" then 1 
                              WHEN announcement_options.option_slug = "" then 2 
                              ELSE 3 END')
                ->select('announcements.*'); // to avoid leftJoin bullshit

  }

orderByRaw删除Laravel 4.2中的部分查询

1 个答案: