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Yii2查詢之where條件拼裝

熟悉Yii2的查詢條件後,用Active Record查詢資料非常方便。
以下我們介紹where()方法當中,條件的拼裝方式。

#某個值為null,會用IS NULL來生成語句:
['type' => 1, 'status' => 2]            // 生成:(type = 1) AND (status = 2)
['id' => [1, 2, 3], 'status' => 2]      // 生成:(id IN (1, 2, 3)) AND (status = 2)
['status' => null]                      // 生成:status IS NULL
['NOT', ['type' => null]]				// 生成:type IS NOT NULL

#對比
['>', 'id', 1]                                        // 生成:id > 1
['<', 'id', 100]                                      // 生成:id < 100
['=', 'id', 10]                                       // 生成:id = 10
['>=', 'id', 1]                                       // 生成:id >= 1
['<=', 'id', 100]                                     // 生成:id <= 100
['!=', 'id', 10]                                      // 生成:id != 10

['and', 'id' => 1, 'id' => 2]                        // 生成:id=1 AND id=2
['and', 'id=1', 'id=2']                              // 生成:id=1 AND id=2
['and', 'type=1', ['or', 'id=1', 'id=2']]            // 生成:type=1 AND (id=1 OR id=2)

['or', ['type' => [7, 8, 9]], ['id' => [1, 2, 3]]]   // 生成:(type IN (7, 8, 9) OR (id IN (1, 2, 3)))

['not', ['attribute' => null]]                       // 生成:NOT (attribute IS NULL)

['between', 'id', 1, 10]                             // 生成:id BETWEEN 1 AND 10
['not between', 'id', 1, 10]                         // 生成:id NOT BETWEEN 1 AND 10

['in', 'id', [1, 2, 3]]                               // 生成:id IN (1, 2, 3)
['id' => [4, 8, 15]]								  // 生成:id IN (4, 8, 15)
['not in', 'id', [1, 2, 3]]                           // 生成:id NOT IN (1, 2, 3)

['in', ['id', 'name'], [['id' => 1, 'name' => 'foo'], ['id' => 2, 'name' => 'bar']]]  // 生成:(`id`, `name`) IN ((1, 'foo'), (2, 'bar'))

#用子查詢作為IN條件的值,如下:
['in', 'user_id', (new Query())->select('id')->from('users')->where(['active' => 1])]

['like', 'name', 'tester']                             // 生成:name LIKE '%tester%'
['like', 'name', ['test', 'sample']]                   // 生成:name LIKE '%test%' AND name LIKE '%sample%'
['like', 'name', '%tester', false]                     // 生成:name LIKE '%tester'
                                                       // 這是自定義查詢方式,要傳入值為false的運算數3,並且自行新增%
['or like', 'name', ['test', 'sample']]                 // 生成:name LIKE '%test%' OR name LIKE '%sample%'
['not like', 'name', 'tester']                          // 生成:name NOT LIKE '%tester%'
['or not like', 'name', ['test', 'sample']]             // 生成:name NOT LIKE '%test%' OR name NOT LIKE '%sample%'

['exists', (new Query())->select('id')->from('users')->where(['active' => 1])] // 生成:EXISTS (SELECT "id" FROM "users" WHERE "active"=1)


來自:http://www.yiiframework.com/doc-2.0/yii-db-query.html#where()-detail