1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
|
<?php
namespace Illuminate\Tests\Integration\Database\Postgres;
use Illuminate\Database\Schema\Blueprint;
use Illuminate\Support\Facades\DB;
use Illuminate\Support\Facades\Schema;
use Illuminate\Support\Str;
/**
* @requires extension pdo_pgsql
* @requires OS Linux|Darwin
*/
class JoinLateralTest extends PostgresTestCase
{
protected function afterRefreshingDatabase()
{
Schema::create('users', function (Blueprint $table) {
$table->id('id');
$table->string('name');
});
Schema::create('posts', function (Blueprint $table) {
$table->id('id');
$table->string('title');
$table->integer('rating');
$table->unsignedBigInteger('user_id');
});
}
protected function destroyDatabaseMigrations()
{
Schema::drop('posts');
Schema::drop('users');
}
protected function setUp(): void
{
parent::setUp();
DB::table('users')->insert([
['name' => Str::random()],
['name' => Str::random()],
]);
DB::table('posts')->insert([
['title' => Str::random(), 'rating' => 1, 'user_id' => 1],
['title' => Str::random(), 'rating' => 3, 'user_id' => 1],
['title' => Str::random(), 'rating' => 7, 'user_id' => 1],
]);
}
public function testJoinLateral()
{
$subquery = DB::table('posts')
->select('title as best_post_title', 'rating as best_post_rating')
->whereColumn('user_id', 'users.id')
->orderBy('rating', 'desc')
->limit(2);
$userWithPosts = DB::table('users')
->where('id', 1)
->joinLateral($subquery, 'best_post')
->get();
$this->assertCount(2, $userWithPosts);
$this->assertEquals(7, $userWithPosts[0]->best_post_rating);
$this->assertEquals(3, $userWithPosts[1]->best_post_rating);
$userWithoutPosts = DB::table('users')
->where('id', 2)
->joinLateral($subquery, 'best_post')
->get();
$this->assertCount(0, $userWithoutPosts);
}
public function testLeftJoinLateral()
{
$subquery = DB::table('posts')
->select('title as best_post_title', 'rating as best_post_rating')
->whereColumn('user_id', 'users.id')
->orderBy('rating', 'desc')
->limit(2);
$userWithPosts = DB::table('users')
->where('id', 1)
->leftJoinLateral($subquery, 'best_post')
->get();
$this->assertCount(2, $userWithPosts);
$this->assertEquals(7, $userWithPosts[0]->best_post_rating);
$this->assertEquals(3, $userWithPosts[1]->best_post_rating);
$userWithoutPosts = DB::table('users')
->where('id', 2)
->leftJoinLateral($subquery, 'best_post')
->get();
$this->assertCount(1, $userWithoutPosts);
$this->assertNull($userWithoutPosts[0]->best_post_title);
$this->assertNull($userWithoutPosts[0]->best_post_rating);
}
}
|
