首先是一个特定的 id，然后是按 desc 顺序排列的所有 id

Question

我需要先获取一个特定的 ID，然后按降序获取所有 ID。这就是我所做的，但是当我取消注释该订单行时，它将不起作用，

$result = $this->Practicetestanswers->find('all',
    ['contain' => ['Practicetestquestions' =>
        ['Practicetestconceptassignment' => ['Practicetestconcept', 'Practicetest']
        ]]])
    ->where(['Practicetestanswers.user_id' => $student_id,
        'Practicetestquestions.is_active' => 'y',
        'Practicetest.is_active' => 'y'
    ])
    ->select([
        'id' => 'Practicetest.id',
        'test_code' => 'Practicetest.test_code',
        'test_title' => 'Practicetest.test_title',
        'time_taken' => 'SUM(Practicetestanswers.time_taken)',
    ])
    ->group('Practicetest.id')
  //    ->order(["FIELD(Practicetest.id, '228')" => 'DESC'])   //need like this
        ->order(["Practicetest.id" => 'DESC'])
        ->hydrate(false)
        ->toArray();

Answer 1

只需将此行替换为您按条件排序

->order(['FIELD(Practicetest.id, "228")'=> 'DESC', "Practicetest.id" => 'DESC' ])

首先是一个特定的 id，然后是按 desc 顺序排列的所有 id

One particular id at first and after all ids in desc order

php

mysql

cakephp-3.0