如何使用 CodeIgniter DB Forge 在 MySQL 中创建 DATETIME？

Question

I'm learning CodeIgniter and now I wan to create MySQL table with DATETIME field.

I have this code in Install_Model.php

    $Fields = array(
      'ID' => array(
      'Type' => 'INT',
      'Constraint' => 10,
      'Unsigned' => TRUE,
      'Auto_Increment' => TRUE
    ),
      'Username' => array(
      'Type' => 'VARCHAR',
      'Constraint' => '255'
    ),
      'Password' => array(
      'Type' => 'VARCHAR',
      'Constraint' => '255'
    ),
      'AddDate' => array(
      'Type' => 'DATETIME'
    )
  );

  $this->dbforge->add_key('ID', TRUE);
  $this->dbforge->add_field($Fields);
  $this->dbforge->create_table('Admins', TRUE);
  echo 'Table Admins created successfully!<br/>';

When I execute this code I get this error:

Warning: #1265 Data truncated for column 'AddDate' at row 1

And in filed AddDate content is 0000-00-00 00:00:00

How I can fix problem, and make AddDate content current timestamp?

I tried to set DEFAULT CURRENT_TIMESTAMP but then CodeIgniter returns error in SQL query :(

Answer 1

尝试

'AddDate' => array( 'type' => 'datetime', 'default' => '0000-00-00 00:00:00', )

Answer 2

'AddDate' => array(
        'type'       => 'TIMESTAMP',
    )

Answer 3

Add these in your model, it will automatically add current datetime on creation, updation adn deletion etc.

protected $createdField  = 'AddDate';
protected $updatedField  = 'updated_at';
protected $deletedField  = 'deleted_at';