CODEWITHSUNDEEP
phpmysqlcodeigniter
user4718286
user4718286

Reputation:

CodeIgniter- active record insert if new or update on duplicate

Is it possible to do an active record query in CodeIgniter that will update an existing record if one already exists or insert if it doesnt, for the given key?

I understand this could be done by first querying to find an existing record, but I'm seeking the most efficient approach.

Upvotes: 26

Views: 44946

Answers (9)

Deepak Thakare
Deepak Thakare

Reputation: 31

First, you need to check whether the user or data exists or not. Then you can perform the update and insert operation.

 function yourFuncName($id, $data)
  {
    $this->db->where('user_id', $id);
    $q = $this->db->get('tbl_user');
    if ($q->num_rows() > 0) {
      $this->db->where('user_id', $id);
      $this->db->update('tbl_user', $data);
    } else {
      $this->db->set('user_id', $id);
      $this->db->insert('tbl_user', $data);
    }
  }

Upvotes: 0

hndcrftd
hndcrftd

Reputation: 3210

If the replace solution suggested by Marcos Sánchez Urquiola in his answer does not work for you because you have an autoincrement column, the following is the cleanest way to do it while avoiding having to quote/sanitize the input yourself and letting Codeigniter do that.

$table = 'database.table'; // Usually you would have this in you model
$primary_key = 'id'; // You would also have this in you model

$data = [
    'id' => '14',
    'name' => 'John Smith',
    'email' => '[email protected]',
];

// get keys and remove primary_key if it has been included in the data array
$updates_array = array_filter( array_keys($data), function($fieldName) use ($primary_key) { return $fieldName !== $primary_key; });
array_walk($updates_array, function(&$item){ $item = "{$item}=VALUES({$item})"; } );

$sql = $this->db->insert_string($table, $data) . ' ON DUPLICATE KEY UPDATE ' . implode(', ', $updates_array);

$this->db->query($sql);

/*
Generates an insert statement with the following at the end:
    ON DUPLICATE KEY UPDATE
        name=VALUES(name),
        email=VALUES(email)
This way you work with the values you already supplied to $this->db->insert_string
*/

Upvotes: 0

WC2
WC2

Reputation: 317

Updated Milaza's answer - Simply done

    $updt_str = '';
    foreach ($array as $k => $v) {
        $updt_str = $updt_str.' '.$k.' = '.$v.',';
    }
    $updt_str = substr_replace($updt_str,";", -1);
    $this->db->query($this->db->insert_string('table_name', $array).' ON DUPLICATE KEY UPDATE '.$updt_str);

Upvotes: -1

jdialogc
jdialogc

Reputation: 23

Here is a method that I hope can accomplish the same

   /**
    * Used to insert new row if a duplicate entry is encounter it performs an update
    * @param string $table table name as string
    * @param array $data associative array of data and columns
    * @return mixed 
    */
   private function updateOnExist($table, $data)
   {
        $columns    = array();
        $values     = array();
        $upd_values = array();
        foreach ($data as $key => $val) {
            $columns[]    = $this->db->escape_identifiers($key);
            $val = $this->db->escape($val);
            $values[]     = $val;
            $upd_values[] = $key.'='.$val;
        }
        $sql = "INSERT INTO ". $this->db->dbprefix($table) ."(".implode(",", $columns).")values(".implode(', ', $values).")ON DUPLICATE KEY UPDATE".implode(",", $upd_values);
        return $this->db->query($sql);
}

Upvotes: 1

Marcos Sánchez Urquiola
Marcos Sánchez Urquiola

Reputation: 281

If you use Codeigniter 3.0 or higher, you might want to consider using "$this->db->replace()". According to the user guide:

"This method executes a REPLACE statement, which is basically the SQL standard for (optional) DELETE + INSERT, using PRIMARY and UNIQUE keys as the determining factor. In our case, it will save you from the need to implement complex logics with different combinations of select(), update(), delete() and insert() calls."

In other words,

  • If it doesn't exist, it inserts a new record.
  • If it does exist, it updates it according to its primary or unique key.

Just use it straight out of the box like:

$data = array(
        'title' => 'My title',
        'name'  => 'My Name',
        'date'  => 'My date'
);

$this->db->replace('table', $data);

No batteries required!!!

Upvotes: 28

Milaza
Milaza

Reputation: 121

You could do it simpler:

$sql = $this->db->insert_string(table, $array) . ' ON DUPLICATE KEY UPDATE ' .
implode(', ', $array);
$this->db->query($sql);

Upvotes: 5

Vickel
Vickel

Reputation: 7997

I'm using this approach:

  1. configure your table mytable with unique id and unique key for the column xyz, which you want to update

  2. try to insert an array $data, using INSERT IGNORE INTO do avoid duplicates

    $insert_query = $this->db->insert_string('bt_ical_list', $data);
$insert_query = str_replace('INSERT INTO','INSERT IGNORE INTO',$insert_query);
$this->db->query($insert_query);

    this inserts a row, if value in column xyz doesn't exist

  3. use function insert_id() to return an id if row was inserted, update if no row was inserted.

    if(!$this->db->insert_id()){
    $query=$this->db    ->where('xyz', $data['xyz'])
                        ->update('my_table',$data);
};

Upvotes: 1

Parag Tyagi
Parag Tyagi

Reputation: 8960

Basically what you are looking for might be this INSERT ... ON DUPLICATE KEY UPDATE - provided that you are using MySQL and your id is a unique key on the table.

You'd have to manually construct the query and pass to the $this->db->query() function instead of any built in active record like helper functions of the DB Driver.

Example:

$sql = 'INSERT INTO menu_sub (id, name, desc, misc)
        VALUES (?, ?, ?, ?)
        ON DUPLICATE KEY UPDATE 
            name=VALUES(name), 
            desc=VALUES(desc), 
            misc=VALUES(misc)';

$query = $this->db->query($sql, array( $id, 
                                       $this->validation->name, 
                                       $this->validation->desc, 
                                       $this->validation->misc
                                      ));

Upvotes: 35

siddhesh
siddhesh

Reputation: 598

I doesn't know Codeigniter Active Record Class has this method or not check the codeigniter docs for the methods containing in active record class

But you can achive this throug extending core models of codigniter. By using this way you can use this method for all the models which extends this model class. Just place the MY_model.php into application/core/ and write the following code.

Class MY_Model extends CI_Model
{
  public function insert_update($data)
  {
       // code for checking existing record.
       if(//existing record)
           fire the update query
       else
           fire the insert query

       return insert/update id;

  }
}

after creating the above file You have to change the All your models parent class to the new Extended model i.e. MY_Model

class some_model extends MY_Model

NOTE: You have to select the primary key from results and put it into the where condition.

It's very critical so what I do when I get the data from the controller I just check it have the ID or not if Id is present then I fired the update query if not then I fired The Insert Query.

BEST OF LUCK

Upvotes: 2

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