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POMy model doesn't work after being loaded from Controller, but works well when was loaded from another model
 

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  1. POMy model doesn't work after being loaded from Controller, but works well when was loaded from another model
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    <p>I am a beginner PHP and codeigniter learner.</p> <p>There is a model that doesn't work after being loaded from Controller, but works well when was loaded from another model.</p> <p>I'm building an app for users to get feedback. A user may have several questions he can make to his audience.</p> <p>From coding point of view, I have a base controller "<code>MY_Controller</code>" that extends CI_Controller. I then have 2 controllers, that extend my controller - home (the main page users will see) and questions (to view the details of a question).</p> <p>I have 2 main models: <code>user_model</code> and <code>question_model</code> </p> <p>When I load the question_model from within the user_model, everything goes well and the program works fine.</p> <p>But when I load the question_model from within the Question controller, it runs the constructor (I've made an echo to check that) and it finishes the constructor (again I echoed to check), but when I invoke a method of the question_model I get the error:</p> <pre><code>Fatal error: Call to a member function initialize() on a non-object in /Users/jaimequintas/Dropbox/3 CODIGO/feedbacking/application/controllers/question.php on line 17 </code></pre> <p>Can someone help me with this? I've been struggling with this for more than a day, and I can't solve it anyway.</p> <p>My base controller:</p> <pre><code>class MY_controller extends CI_Controller{ public function index() { $this-&gt;session-&gt;set_userdata('user_id', 8); //this is here just to initialize a user while in DEV $this-&gt;prepare_user(); //populates user with DB info } </code></pre> <p>My Question controller (the one that can't use the $this->question_model methods)</p> <pre><code>class Question extends MY_Controller { public function index(){ parent::index(); $active_question = $this-&gt;uri-&gt;segment(2,0); $this-&gt;load-&gt;model('Question_model'); //this line runs well, as an echo statement after this gets printed $this-&gt;Question_model-&gt;initialize($active_question); //this is the line that triggers the "can't use method error" $this-&gt;Question_model-&gt;get_answers_list(); </code></pre> <p>This is the Question_model whose methods can't be called from controller.</p> <pre><code>class Question_model extends CI_Model { public $question_id; public $question_text; public $vote_count; public $activation_date; public $status; //Draft, Active, Archived public $question_notes; //user notes public $question_url; //the segment that will be added to codeigniter url feedbacking.me/"semgent" public $answers_list; //array with answer objects public $last_vote; //date of the last vote public $vote_count_interval; //this is not computed with initialize, must call method when needed public function __construct() { parent::__construct(); } public function initialize($question_id) { //populate question from DB with: question_id, question_text, vote_count, activation_date, status // if $question_id ==0 creates an empty question (should be followed by create_question) $this-&gt;question_id = $question_id; $this-&gt;get_question_by_id(); $this-&gt;get_question_votes(); } </code></pre> <p>And finally the User_model. I only put this here because when this model loads the Question_model, everything works fine.</p> <pre><code>class User_model extends CI_Model { public $user_id; public $user_email; public $user_name; public $plan_id; public $questions_list; //array with question objects public function __construct() { parent::__construct(); $this-&gt;load-&gt;database(); } public function initialize($user_id) { //populates user_info and question_list $this-&gt;user_id = $user_id; $this-&gt;get_user_by_id(); $this-&gt;get_user_questions(); //this line calls the Question_model and works fine } </code></pre>
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    1. USJaime
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    1. COThe problem seems to be that its trying to find Question->QuestionModel as like if it is a property of your controller.
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    2. COShouldn't the $this->loadmodel() be on the Constructor? Sorry I am not that good at CI as I didnt use it too much, but I have a controller and I am loading the models on its constructor and works fine. (I am using a second parameter too, to get a shorter name). `function __construct () { parent::__construct (); $this->load->model ( 'md_cola', 'cola' ); }`
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    3. COHi @Jorge, thanks for the help. We can load the model in the controller or in another model. When I load the exact same model in another model, it's ok. When I do it from the controller, it doesn't work. I'm using the shorter name also, but remove it here to make it simpler. thanks
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