Question

我想设置更新属性以获取应用程序的更新时间。这是我的模型代码：

public function createDatabase() {
    $testdatabase = "testdatabase";
    $this->dbforge->create_database($testdatabase);
    $this->db->db_select($testdatabase);
    $fields = array(
        'id' => array(
            'type' => 'INT',
            'constraint' => 1,
            'unsigned' => TRUE,
        ),
        'name' => array(
            'type' => 'VARCHAR',
            'constraint' => '100',
        ),
        'establishment_date' => array(
            'type' => 'VARCHAR',
            'constraint' => '50',
            'null' => TRUE,
        ),
        'package' => array(
            'type' => 'VARCHAR',
            'constraint' => '15',
        ),
        'db_name' => array(
            'type' => 'VARCHAR',
            'constraint' => '25',
        ),
        'update_date' => array(
            'type' => 'datetime',
            'on update' => 'NOW()',
        ),
        'upgrade' => array(
            'type' => 'tinyint',
            'constraint' => '1',
            'default' => '0',
        ),
        'status' => array(
            'type' => 'tinyint',
            'constraint' => '1',
            'default' => '4',
        ),
    );
    $this->dbforge->add_field($fields);
    $this->dbforge->add_field("subscription_date TIMESTAMP DEFAULT CURRENT_TIMESTAMP");
    $this->dbforge->add_field("subscription_expire TIMESTAMP DEFAULT '0000-00-00 00:00:00'");
    $this->dbforge->add_key('id', TRUE);
    $this->dbforge->create_table('tms_profile');
}

表已成功创建，但名为update_date的字段上不存在更新属性。我想在该字段上设置更新atrributes。

Answer 1

您所要做的就是更改type列的update_date，如

....
'update_date' => array(
       'type' => 'TIMESTAMP'
 ),
.....

现在它将使用NOW()

进行更新

Answer 2

使用内联声明，例如：

`update_stamp` timestamp NOT NULL DEFAULT CURRENT_TIMESTAMP ON UPDATE CURRENT_TIMESTAMP',

如何在codeigniter 3

2 个答案: