[El Forum]

[eluser]BirdieNZ[/eluser]
I want my application to be able to re-create a database (by deleting and creating it if it already exists, or just creating it if it doesn't). I have used dbforge to drop the database and create a new one, which works correctly.

Code:

$this->dbforge->drop_database('mydatabase');
$this->dbforge->create_database('mydatabase');

Inside database.php, the default DB name is mydatabase (the same name).

However, when I add a table to the database it fails, suggesting that there is no database selected (and is unable to select the database).

Code:

$this->load->database();
$fields = array(
'category_id' => array(
        'type' => 'INT',
        'constraint' => 5,
        'unsigned' => TRUE,
        'auto_increment' => TRUE
       ),
'category_title' => array(
        'type' => 'VARCHAR',
        'constraint' => '100',
       ),
);
$this->dbforge->add_field($fields);
$this->dbforge->add_key('category_id', TRUE);
$this->dbforge->create_table('category');

Why is this and what can I do to fix it?

[El Forum]

[eluser]InsiteFX[/eluser]
Why are you re-loading the database?

[El Forum]

[eluser]BirdieNZ[/eluser]
It was an attempt to make absolutely sure CI is connecting to the database before adding the tables. Removing that line doea not fix tbe problem.

[El Forum]

[eluser]InsiteFX[/eluser]
Its probably because your dropping the database so it loses its connection information.

I would do a check to see if the database exists and if not then create it and add the tables.

It could also be a timing issue between the database commands being sent.

[El Forum]

[eluser]CroNiX[/eluser]
Maybe try

Code:

$this->load->database('default');
sleep(2); //give time to connect, 2 seconds is probably more than needed...

Then try to add tables.

If that doesn't work, try $this->db->reconnect(); instead of loading the db.

However, not sure any of that will work. Never seen anyone try to drop the db they are currently connected to. There must be a better way...

[El Forum]

[eluser]BirdieNZ[/eluser]
I tried both of those, and neither worked.

@InsiteFX, I already have a check to see if the database exists before the add table code. It doesn't fail.

Code:

if ($this->dbutil->database_exists('mydatabase')) {

My reason for doing all this is so that a new user can run the database creation script when installing my software, and it will create the database and populate it with tables automatically.