[英]Laravel query count total rows
我有这个查询:
$counts = DB::table('projects')
->join('prject_links', 'prject_links.project_id', '=', 'projects.id')
->join('links', 'links.id', '=', 'prject_links.link_id')
->join('segments', 'segments.id', '=', 'links.segment_id')
->join('hthree_regions', 'hthree_regions.id', '=', 'segments.hthree_id')
->join('areas', 'areas.id', '=', 'hthree_regions.area_id')
->join('zone_regions', 'zone_regions.id', '=', 'areas.zone_id')
->select(
'zone_regions.id as regions',
'areas.id as provinces',
'hthree_regions.id as cities',
'segments.id as segments'
)
->get();
我希望得到的结果是:
counts => [
regions => 20,
provinces => 10,
cities => 7,
segments => 5
];
我目前得到的是令人困惑的结果,例如:
关于如何修复我的查询的任何想法?
使用groupBy
和count(distinct field)
获取每个项目中的字段计数:
->selectRaw(
"CONCAT('project ', projects.id) as project,
COUNT(DISTINCT zone_regions.id) as regions,
COUNT(DISTINCT areas.id) as provinces,
COUNT(DISTINCT hthree_regions.id) as cities,
COUNT(DISTINCT segments.id) as segments"
)
->groupBy('projects.id')
->get();
这可能是您的解决方案。 运行它并让我知道这是否有帮助
$counts = DB::table('projects')
->join('prject_links', 'prject_links.project_id', '=', 'projects.id')
->join('links', 'links.id', '=', 'prject_links.link_id')
->join('segments', 'segments.id', '=', 'links.segment_id')
->join('hthree_regions', 'hthree_regions.id', '=', 'segments.hthree_id')
->join('areas', 'areas.id', '=', 'hthree_regions.area_id')
->join('zone_regions', 'zone_regions.id', '=', 'areas.zone_id')
->groupBy('projects.id')
->selectRaw(
'count(zone_regions.id) as regions',
'count(areas.id) as provinces',
'count(hthree_regions.id) as cities',
'count(segments.id) as segments'
)
->get();
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