Insert Oracle CLOB in CodeIgniter - php

Question

How do we use the CodeIgniter Framework to insert into a table that has a CLOB column?
Table is :
CREATE TABLE NOTIFICATIONS
{
ID NUMBER,
CONTENT CLOB
}
The PHP Code is :
$id = 1;
$content = /* An Incredibly Long & Complex String */
$query = "INSERT INTO notifications (id,content) values (?,?)";
$this->dbconnxn->query($query, array($id,$content));
But this doesn't seem to work.
Any ideas?

Answer 1

CodeIgniter doesn't support this, you need to do it manually. In order to not re-create a connection to the database, you can use the connection ID created by CI:
$this->db->conn_id

Answer 2

I have solved it creating in the model 2 functions 1) for insert and update the clob and 2) for read the clob:
1) In the model the function that I have created to set my Clob is updateClobImg64, it is called after the insert :
public function create_file($file){
$file->file_pk1=$this->getMaxPk1();
$data = array(
"file_pk1" => $file->file_pk1,
"file_name" => $file->file_name,
"file_type"=>$file->file_type,
"file_location"=>$file->file_location,
//"file_img64"=>$file->file_img64,
"file_created_date"=>$file->file_created_date,
"file_created_by" => $file->file_created_by,
"file_storage_type"=>$file->file_storage_type,
);
$this->db->insert("file_repository", $data);
if(isset($file->file_img64) && !empty($file->file_img64)) $this->updateClobImg64($file->file_pk1,$file->file_img64);
return $file->file_pk1;
}
public function updateClobImg64($file_pk1,$img64){
$sql='update "file_repository" set "file_img64"=EMPTY_CLOB() where "file_pk1"='.$file_pk1.' RETURNING "file_img64" INTO :clob';
$stid = oci_parse($this->db->conn_id, $sql);
$clob = oci_new_descriptor($this->db->conn_id, OCI_D_LOB);
oci_bind_by_name($stid, ":clob", $clob, -1, OCI_B_CLOB);
oci_execute($stid, OCI_NO_AUTO_COMMIT); // use OCI_DEFAULT for PHP <= 5.3.1
$clob->save($img64);
oci_commit($this->db->conn_id);
$clob->free();
OCIFreeStatement($stid);
}</span>
2) To read the clob is is need a function read that I have implemented this way:
function read_clob($field) {
return $field->read($field->size());
}
and Is called in the model select funtion:
public function get_all(){
$query = $this->db->get_where("file_repository", array());
if($query->num_rows() > 0){
$files=$query->result();
foreach($files as $key=>$row){
$files[$key]->file_img64=$this->read_clob($row->file_img64);
}
return $files;
}
}</span>
Hope this helps some one with this issue.