These are my settings in the database config file for Codeigniter:
$db['default'] = array(
'dsn' => '',
'hostname' => 'localhost',
'username' => 'root',
'password' => '',
'database' => 'admin',
'dbdriver' => 'mysqli',
'dbprefix' => '',
'pconnect' => FALSE,
'db_debug' => FALSE,
'cache_on' => FALSE,
'cachedir' => '',
'char_set' => 'utf8',
'dbcollat' => 'utf8_general_ci',
'swap_pre' => '',
'encrypt' => FALSE,
'compress' => FALSE,
'stricton' => FALSE,
'failover' => array(),
'save_queries' => TRUE
);
And even if I set the debuging to false errors still show on my page specificly after this function:
if ($this->db->update_batch($batch_data, 'id'))
{
echo 'Success';
}
else
{
echo 'Error';
}
I know why this happens (incorrect id value and in this case missing argument) but I don't know why the error is displayed and more importantly why is there no false on return? Instead it returns the "A Database Error Occurred" block!
Related
I need to change the database name in database.php passing value from the controller. I tried sessions and env variable. but in the database.php cannot access the value from sessions and env variable. also, i need to use the default database to load the page and when user has been logged in need to switch the database. i'm doing this for reducing size of the database data is there any solution really glad someone can help me.
databse.php
$active_group = 'default';
$query_builder = TRUE;
if($db_val==""){
$db['default'] = array(
'dsn' => '',
'hostname' => 'localhost',
'username' => 'root',
'password' => '',
'database' => 'sliate_srs',
'dbdriver' => 'mysqli',
'dbprefix' => '',
'pconnect' => FALSE,
'db_debug' => (ENVIRONMENT !== 'production'),
'cache_on' => FALSE,
'cachedir' => '',
'char_set' => 'utf8',
'dbcollat' => 'utf8_general_ci',
'swap_pre' => '',
'encrypt' => FALSE,
'compress' => FALSE,
'stricton' => FALSE,
'failover' => array(),
'save_queries' => TRUE
);
}
else{
$db['default'] = array(
'dsn' => '',
'hostname' => 'localhost',
'username' => 'root',
'password' => '',
'database' => getenv("DB_year"),
'dbdriver' => 'mysqli',
'dbprefix' => '',
'pconnect' => FALSE,
'db_debug' => (ENVIRONMENT !== 'production'),
'cache_on' => FALSE,
'cachedir' => '',
'char_set' => 'utf8',
'dbcollat' => 'utf8_general_ci',
'swap_pre' => '',
'encrypt' => FALSE,
'compress' => FALSE,
'stricton' => FALSE,
'failover' => array(),
'save_queries' => TRUE
);
}
controller.php
function loginSubmit() {
$DB_year=$this->input->post('year_select');
//$this->session->unset_userdata('DB_year');
//$this->session->set_userdata('DB_year',$DB_year);
$DB_year="srs_2019";
putenv("DB_year=$DB_year");
// $_ENV["DB_year"]="srs_2019";
print_r(getenv("DB_year"));
// $DB_year="srs_2019";
$result = $this->Login_model->authenticateLogin();
if (!empty($result)) {
$now = date('Y-m-d H:i:s');
$ip = $this->input->ip_address();
$data = array(
'u_id' => $this->session->userdata('u_id'),
'u_name' => $this->session->userdata('u_name'),
'center_name' => $this->session->userdata('u_branch'),
'last_login_ip' => $this->input->ip_address('ip'),
'last_login_date_time' => $now
);
$name = $this->session->userdata('DB_year');
print_r($name);
$this->Login_model->last_login($data);
redirect('Admin/dashboard');
} else {
redirect('Login?login=invalid');
}
}
Instead of changing the config group in Database.php, why not create a custom connection in your model, as explained in Connecting with Custom Settings?
$active_group = 'default';
$query_builder = TRUE;
$db['default'] = array(
'dsn' => '',
'hostname' => 'localhost',
'username' => 'walkmjcd_moneywk',
'password' => 'q?P?Lf817H~y',
'database' => 'walkmjcd_walkmoney',
'dbdriver' => 'mysqli',
'dbprefix' => '',
'pconnect' => FALSE,
'db_debug' => (ENVIRONMENT !== 'production'),
'cache_on' => FALSE,
'cachedir' => '',
'char_set' => 'utf8',
'dbcollat' => 'utf8_general_ci',
'swap_pre' => '',
'encrypt' => FALSE,
'compress' => FALSE,
'stricton' => FALSE,
'failover' => array(),
'save_queries' => TRUE
);
$db['default']='';
An Error Was Encountered You have not selected a database type to connect to. Please ANyone help in this case How can i resolve this.
The problem is, the db configuration you set at top and reset it at the bottom. Just remove the $db['default']=''; and try.
Please remove :
$db['default']='';
I have an autoloaded DB which has all its var set in the config/database.php file as a default group:
$db['default'] = array(
'dsn' => '',
'hostname' => 'localhost',
'username' => 'root',
'password' => 'root',
'database' => 'dbname',
'dbdriver' => 'mysqli',
'dbprefix' => '',
'pconnect' => false,
'db_debug' => (ENVIRONMENT !== 'production'),
'cache_on' => false,
'cachedir' => '',
'char_set' => 'utf8',
'dbcollat' => 'utf8_general_ci',
'swap_pre' => '',
'encrypt' => false,
'compress' => false,
'stricton' => false,
'failover' => array(),
'save_queries' => true
);
In this default DB there is a table where I need to read an external DB, and I have all fields to get a new connection.
I need to connect both DB at the same time, but I cannot define the DB variables in the config/database.php as these are dynamic and may change depending on the DB (default) content.
My idea was this either to SET $db['external'] = [...] IN THE CONTROLLER and set the data from the default DB I read, or simply use a DNS:
Solution #1:
public function wordpress()
{
$DB = $this->load->database('default', true);
$wp_db = $DB->get_where('dbtable', ['type_needed' => 'wordpress'])->row();
$db['wp_db'] = array(
'dsn' => '',
'hostname' => $wp_db->mysql_host,
'username' => $wp_db->mysql_user,
'password' => $wp_db->mysql_password,
'database' => $wp_db->mysql_db,
'dbdriver' => 'mysqli',
'dbprefix' => '',
'pconnect' => false,
'db_debug' => (ENVIRONMENT !== 'production'),
'cache_on' => false,
'cachedir' => '',
'char_set' => 'utf8',
'dbcollat' => 'utf8_general_ci',
'swap_pre' => '',
'encrypt' => false,
'compress' => false,
'stricton' => false,
'failover' => array(),
'save_queries' => true,
);
$this->WPDB = $this->load->database('wp_db', true);
}
Solution #1 gives "You have specified an invalid database connection group (wp_db) in your config/database.php file." error
Solution #2:
$DB = $this->load->database('default', true);
$wp_db = $DB->get_where('dbtable', ['type_needed' => 'wordpress'])->row();
$wp_dns = "mysql://$wp_db->mysql_user:$wp_db->mysql_password#$wp_db->mysql_host/$wp_db->mysql_db";
$this->WPDB = $this->load->database($wp_dns, true);
Solution #2 gives a "Invalid DB Connection String" error
Ps: I'm moving to Laravel, but this project was built with CI already :)
the only thing you've to change in your function is the following
public function wordpress()
{
$DB = $this->load->database('default', true);
$wp_db = $DB->get_where('dbtable', ['type_needed' => 'wordpress'])->row();
$arrDbData = array(
'dsn' => '',
'hostname' => $wp_db->mysql_host,
'username' => $wp_db->mysql_user,
'password' => $wp_db->mysql_password,
'database' => $wp_db->mysql_db,
'dbdriver' => 'mysqli',
'dbprefix' => '',
'pconnect' => false,
'db_debug' => (ENVIRONMENT !== 'production'),
'cache_on' => false,
'cachedir' => '',
'char_set' => 'utf8',
'dbcollat' => 'utf8_general_ci',
'swap_pre' => '',
'encrypt' => false,
'compress' => false,
'stricton' => false,
'failover' => array(),
'save_queries' => true,
);
$this->WPDB = $this->load->database($arrDbData, true);
}
I found out Solution #2 is working but due to the dns connection which is a STRING you are to make sure the password is made of letters and numbers and NO SYMBOLS otherwise it screws up the string and does not read properly.
In my case the password was this one iidf#q0RDTh#)CrPo5PDLeVe so dashes and parenthesis created a problem where CI could not read the whole password.
I am conneting two databases in codeigniter. My database.php configuration is as follows.
$db['default'] = array(
'dsn' => '',
'hostname' => 'localhost',
'username' => 'root',
'password' => '',
'database' => 'dvrs',
'dbdriver' => 'mysqli',
'dbprefix' => '',
'pconnect' => FALSE,
'db_debug' => TRUE,
'cache_on' => FALSE,
'cachedir' => '',
'char_set' => 'utf8',
'dbcollat' => 'utf8_general_ci',
'swap_pre' => '',
'encrypt' => FALSE,
'compress' => FALSE,
'stricton' => FALSE,
'failover' => array(),
'save_queries' => TRUE
);
$db['orcl_db'] = array(
'dsn' => '',
'hostname' => 'localhost',
'username' => 'mvrs',
'password' => 'mvrs',
'database' => 'MVRS',
'dbdriver' => 'oci8',
'dbprefix' => '',
'pconnect' => FALSE,
'db_debug' => TRUE,
'cache_on' => FALSE,
'cachedir' => '',
'char_set' => 'utf8',
'dbcollat' => 'utf8_general_ci',
'swap_pre' => '',
'encrypt' => FALSE,
'compress' => FALSE,
'stricton' => FALSE,
'failover' => array(),
'save_queries' => TRUE
);
Now I am autoloading the default database, and loading the orcl_db in the respective model on demand using
$this->orclDB = $this->database->load("orcl_db", TRUE);
I am connecting to both dbs and running queries successfully.
I need to make sure that the oracle server is available before connecting to it and display proper error messages if the server is not available / not responding.
What will be the best way to do this?
Following is the code to ensure it.
$this->orclDB = $this->load->database('orcl_db', TRUE);
if (!$this->orclDB ->initialize()) {
$response["status"] = false;
$response["message"] = "Oracle DB is not available.";
}
In order to turn off db debugging, which throws fatal error when db connection fails, use $db['orcl_db']['db_debug'] = FALSE; in your database config file. Then you can check if database is loaded like this:
if ( $this->load->database('orcl_db') === FALSE )
{
// do whatever you think is appropriate, but do not panick
}
I am using this code in CodeIgniter to add a database:
$active_group = 'default';
$query_builder = TRUE;
$db['default'] = array(
'dsn' => '',
'hostname' => 'localhost',
'username' => 'root',
'password' => '12345',
'database' => 'saas',
'dbdriver' => 'mysqli',
'dbprefix' => '',
'pconnect' => FALSE,
'db_debug' => TRUE,
'cache_on' => FALSE,
'cachedir' => '',
'char_set' => 'utf8',
'dbcollat' => 'utf8_general_ci',
'swap_pre' => '',
'encrypt' => FALSE,
'compress' => FALSE,
'stricton' => FALSE,
'failover' => array(),
'save_queries' => TRUE
);
How can I add a second database?
And How can i use them simultaneously?
Any help would be greatly appreciated!
From The Documentation:
$db['test'] = array(
'dsn' => '',
'hostname' => 'localhost',
'username' => 'root',
'password' => '',
'database' => 'database_name',
'dbdriver' => 'mysqli',
'dbprefix' => '',
'pconnect' => TRUE,
'db_debug' => TRUE,
'cache_on' => FALSE,
'cachedir' => '',
'char_set' => 'utf8',
'dbcollat' => 'utf8_general_ci',
'swap_pre' => '',
'compress' => FALSE,
'encrypt' => FALSE,
'stricton' => FALSE,
'failover' => array()
);
In your model you can write:
function method()
{
$test = $this->load->database('test', TRUE); // the TRUE paramater tells CI that you'd like to return the database object.
$query = $test->select('first_name, last_name')->get('person');
var_dump($query);
}
Read More (http://www.codeigniter.com/user_guide/database/configuration.html)