"Call to a member function userList() on a non-object"

Question

I have a custom mvc app which has an index controller and an index model.The url for controllers in this app is $url[0]. The system is designed to redirect to index when the value for controller($url[0] is empty. e.g., When the url is http://localhost/Test/ The system should automatically redirect to the index.

However, when i include a model method in the controller i get the following error:

Notice: Undefined property: Index::$model in Fatal error: Call to a member function userList() on a non-object

the reason may be the model is not loaded. to the controller which is causing this issue — Nitin Goyal, Feb 26 '18 at 06:41
Where is your custom MVC?. At least you can add controller model script in question. — Adnan Haider, Feb 28 '18 at 05:21
model is controller class variable, some how it is not instantiated. Share your complete code not functions. Let me know the point where you are loading model. — Adnan Haider, Mar 01 '18 at 05:01
Add this require "index_model.php"; before your index controller. if still doesn't let me know i will write the answer. — Adnan Haider, Mar 01 '18 at 13:08
This does not work and instead halts the index method from running. — tapeli, Mar 01 '18 at 14:42
For your index controller model is not loaded before you call its function. — Adnan Haider, Mar 01 '18 at 17:20
Create the git repository and share the complete MVC code.I will debug it. — Adnan Haider, Mar 01 '18 at 17:22
@tapeli oh , ok so without complete information this question is useless delete it. — Adnan Haider, Mar 02 '18 at 07:08
@Adnanhaider i had provided you with the complete code. I cannot delete this question. I am still hoping i will get an answer as to why the code works when the controller is not empty but doesn't work when the controller is empty — tapeli, Mar 02 '18 at 09:43
@tapeli Everyone is here helping each other. Just share your complete code. i will implement it on my localhost without error. Currently your provided code shows logical error in bootstrap class. You default controller load but default model is not loading. — Adnan Haider, Mar 02 '18 at 09:53
not able to chat because i have less than 20 points reputation — tapeli, Mar 02 '18 at 10:28
@Adnanhaider see my answer below. One of the ways to avoid the error is redirecting the header to index controller because the $controller->Index() on bootstrap.php overrides the method Index() in the Index controller and hence not allowing the model to be loaded. — tapeli, Mar 04 '18 at 10:50

score 0 · Accepted Answer · answered Mar 02 '18 at 09:29

0

The problem is in the bootstrap.php file line 21 to line 27. You say that when the url is http://localhost/Test/index the app works as expected but when $url[0] is empty i.e., http://localhost/Test you get the error after explicitly stating that if url[0] is empty then the system should automatically redirect to index controller. Try amending your bootstrap by introducing more logic

answered Mar 02 '18 at 09:29

tom sawyer

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Thanks for your suggestion. I have looked at the logic in lines 21 to 27 as you have suggested and think that i should not tamper with it since it works well. I highly suspect that my design is faulty and that index controllers were never meant to display data in PHP – tapeli Mar 02 '18 at 09:36

tapeli · Answer 2 · 2018-03-04T10:52:55.757

After much deliberation and thinking, i figured that the only way to avoid this error is to change one line on bootstrap.php. i replaced the $Controller->Index(); with a header location call like this header('Location: ' . index). This is due to the fact that setting the controller to $controller->Index() in the bootstrap overrides the Index action/method defined in the index controller(index.php) hence stopping the controller from loading the model.

This way the page will always redirect to http://localhost/Test/index when the url[0] is empty.

"Call to a member function userList() on a non-object"

2 Answers2