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Filename : 20200926132800_createtable.php
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<?php 
defined('BASEPATH') OR exit('No direct script access allowed');

class Migration_Createtable extends CI_Migration {

        

      
        public function up()
        {

               $this->dbforge->add_field(array(
                        'cha_usu_id' => array(
                                'type' => 'INT',
                                'constraint' => 5,
                                'unsigned' => TRUE,
                                'auto_increment' => TRUE
                        ),
                        'cha_usu_nome' => array(
                                'type' => 'VARCHAR',
                                'constraint' => '100',
                        ),
                        'cha_usu_email' => array(
                                'type' => 'VARCHAR',
                                'constraint' => '100',
                        ),
                        'cha_usu_senha' => array(
                                'type' => 'VARCHAR',
                                'constraint' => '100',
                        ),
                ));

              
                $this->dbforge->add_key('cha_usu_id', TRUE);
                if($this->dbforge->create_table('cha_usuario')){
                        echo "table create";
                }else{
                
                $this->dbforge->add_column('cha_usuario', array(
                        'cha_usu_dtcad' => array(
                                'type' => 'DATE')));
                }
        }

        public function down()
        {
                $this->dbforge->drop_table('cha_usuario');
        }
}

?>