Error : get property of non-object

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Possible Duplicate:
Call to a member function on a non-object

I receive this error : Trying to get property of non-object [from Model] When i try to retrieve id from database by inputting a string which in this case is 'something'

This is my Model

   function getRoleId($role_name='')
         {

            $conditions = array('role_name'=> $role_name);
            $this->db->where($conditions);
            $this->db->select('id');
            $query = $this->db->get('roles');       
            $row   = $query->row();
            return $row->id;
         }

Controller ($radioRole here is = something) but when it reaches the model it becomes something else.

$radioRole  = 'something';
$insertData['role_id']            = $this->user_model->getRoleId($radioRole);

UPDATE

print_r($radioRole);
$insertData['role_id']            = $this->user_model->getRoleId($radioRole);

Shows $radioRole which is in this case 'something'

but when it reaches user_model and when i do a print_r it shows something else, 'buyer' , it doesnt even show the print_r done on controller. Feels like its being over written :O but i got no idea :O

print_r($query)

  CI_DB_mysql_result Object ( [conn_id] => Resource id #37 [result_id] => Resource id #64 [result_array] => Array ( ) [result_object] => Array ( ) [current_row] => 0 [num_rows] => 0 [row_data] => )

You should rewrite your question to be much more specific about what it is that you are **asking**. Also display the exact error message that you get when you run your code. — regulatethis, Dec 20 '12 at 02:30
Are you sure your query is correct? Are you sure there is a result from the database? — Supericy, Dec 20 '12 at 02:42
Do a `print_r($query->row());die();` right after your `$query=` line and see if your getting any results. — Jeemusu, Dec 20 '12 at 02:45
The problem is that your query is either returning 0 results, or its returning lots of results (more than one). If it's the latter you'll need a foreach loop to access the result object. `foreach ($query->result() as $row) { echo $row->id; }` — Jeemusu, Dec 20 '12 at 02:49
Ok, well now we know the problem is with the query. Try doing another `print_r` only this time `print_r($query);die();` And see what output if any the query is giving us. Are you sure there is a row with role_name = 'something' in your database? — Jeemusu, Dec 20 '12 at 02:55
@Jeemusu i have updated my question, realise it was some other error , not model — CodeGuru, Dec 20 '12 at 03:12
Update your question with what Jeemusu is asking. A `print_r($query);`, without this we don't know what's being returned — Bankzilla, Dec 20 '12 at 03:18

stormdrain · Answer 1 · 2012-12-21T12:42:43.697

0

~~Your where is wrong:~~

$conditions = array('role_name'=> $role_name);
$this->db->where($conditions);

should be

$conditions = array('role_name', $role_name);
$this->db->where($conditions);

EDIT:

as mentioned in the comments, the comma is necessary if the condition is directly within the where as such:

$this->db->where('role_name',$role_name);

edited Dec 21 '12 at 12:42

answered Dec 20 '12 at 12:53

stormdrain

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His `where` was perfectly fine... Your conditions are a flat array with two items, non of which have keys. His was an array of key => values . – Jeemusu Dec 21 '12 at 08:10
@Jeemusu, i've already pushed the data into the model function but something is overwriting it. :( Any idea? MVC's Trigger? if there is such a thing?... – CodeGuru Dec 21 '12 at 08:30
@RainbowHat, I'm guessing this isn't a site you built yourself? I can't think of anyway it could be getting overwritten between calling the function and the model. What happens if you write the param directly? I.E. `$insertData['role_id'] = $this->user_model->getRoleId('something');` – Jeemusu Dec 21 '12 at 08:39
@Jeemusu, i found the problem -.- , my other function on the same page is overwriting it, i'm not sure why. I only use that function to call for "Check" $this->form_validation->set_rules('email','required|trim|valid_email|xss_clean|callback__check_email'); – CodeGuru Dec 21 '12 at 08:43
I fixed it by using another function. Any idea why does it conflict? – CodeGuru Dec 21 '12 at 08:57
@Jeemusu dur, yup you're right. Thanks for clarifying. I was thinking of the way CI takes the condition directly in the `where` – stormdrain Dec 21 '12 at 12:40

Error : get property of non-object

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