Yii2查詢之where條件拼裝
阿新 • • 發佈:2019-02-04
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