I have one module Foo in my codeigniter HMVC. Also I have an api controller inside my application/controllers. I want to load a model inside application/module/foo/models from application/controllers/testapi
I have tested it by autoload as
$autoload['model'] = array('foo/Foo_model');
and called from testapi
$this->load->model('Foo_model');
But its not working
Try
$this->load->model('foo/foo_model');
from your controller.
then call model's function like this
$this->foo_model->function_name();
save model in application/modules/foo/models/Foo_model.php
CodeIgniter loads all possible models from application/models, I would suggest you modify the path of your models to something like application/models/modules with this you can load your model using
$this->load->model('modules/foo/Foo_model')
If you do want to retain your folder structure, I suggest you look at the constant paths of CodeIgniter and start modifying them to your will (although this is not really recommended).
Related
I have a project where i have a decent amount of Eloquent Models,
on most of the pages I need to use multiple models and their functions to build the page correctly.
I am used to this syntax:
use App\CustomFolder\CustomModel;
CustomModel::all(); // or whatever function / data I need
Though as said I have about 27 Models now and I need multiple ones on every page. So I created a blade layout (master page) where I link all these models, but now it seems these Models can't be called from the view itself.
So how can I either:
Make these Models globally available (preferred)
Make it so the models that I call (use Model;) in the layout are also available from my view.
You actually should get all your resources in the controller methods and not in your views. This goes against the MVC pattern Laravel and Eloquent both use.
In the controllers you can add and use them with the normal syntax:
use App\CustomFolder\CustomModel;
CustomModel::all(); // or whatever function / data I need
Learn more about using controllers in Laravel here.
EDIT
To not have to always type Use Path/To/Model in every controller, you can add the models to aliases in config/app.php. That way you can add for example 'CustomModel' => App\Path\To\CustomModel and use it in your controller methods as \CustomModel.
Although its a bad practice and will void MVC. But you can do like this inside php tags or {{}} braces in blade.
\App\Models\ModelName::get();
I am new in codeigniter framework.I have some question.When we write some controller class then we call constructor.I am loading some library and some helper.I want to know what is the perfect way for loading this helper and library under construct class or under other functions.If i load everything in construct class then what is the disadvantages for it?if i use more controller class for one project then it is good or bad.Like i want to use some controller class for ajax functionalities,some for form submission,some for other sector.My english is not so good.Please help me.
For common libraries and helpers used by all functions of your controller try to load it in constructor or autoload. Except that for specific libraries e.g. payment gateway load inside the function.
How you use or how many controllers you are using depends upon your needs. But I would suggest you to build separate controllers for separate functions. Like admin for admin functions, users for user related functions, and so on. It build a user friendly URL too.
Well! everything depends on your requirements.
If you need any library , model or helper globally you can autoload it autoload.php.
It means the loading will be done on each request.
if you need any library , model or helper throughout your controller methods you can load them in constructor.
It means loading will be done on each method of controller.
if you need any library , model or helper for specific method you can load them in method.
It means loading will be done in method only.
For example let suppose you nees session and database library throughout your application so you can autoload it.
For a specific controller you need priviliges library so load it in constructor.
For email you need to send load email library in function.
These are only examples. You can explore SO to find more.
Loading takes time and performance. Not noticeable time by human standards, but time regardless. In order to cut of some slack to your server in the future, you do it a favor by only loading whatever is it you require for each page/controller method.
Used (almost) always
You can use application/config/autoload.php for things you almost always use. I usually include the helper url here.
Used (almost) always inside specific controller
Load it inside controller __construct. Don't forget to include parent::__construct();.
Used inside specific page
Load it inside method/function.
Used inside specific function
Load it at beginning or inside if-statement in function. You can load it numerous of times, it will only execute first time.
In a controller class I have this function:
public function index(){
$this->load->helper('url');
$data['title'] = 'News archive';
$this->load->view('news/index', $data);
}
I load helper url because I'm using anchor() in news/index. So seems like it's enough to load helper in the parent function, and I don't have to load it inside news/index.
So my question is what's going on underneath CI that lets me do this? Is load->view a function, or is it pasting the result of executing news/index on $data? How is load->view aware of helper url having been loaded in index? I'm still trying to make sense of how the CI framework works.
Also what would be the best place to load helper, in the constructor, or in each function as we need it?
Also what would be the best place to load helper, in the constructor, or in each function as we need it?
As a rough rule of thumb;
If you use the helper once in a controller - place it in that specific function
If you use the helper in multiple places in a controller - place it in that controllers constructor
If you use the helper in multiple places in multiple controllers - place it in the 'autoload' section once.
you can get all the answer if u go through the Loader Class in codeigniter...
path >> system/core/loader.php
everything that is done is here....
and for ut last question . according to the user guide
http://ellislab.com/codeigniter/user-guide/libraries/loader.html
loader, as the name suggests, is used to load elements. These elements can be libraries (classes) View files, Helpers, Models, or your own files.
so since it just loads the elements...
i usually(prefer) loading it in each function where needed. (unless i need the same elements in other functions too)
I wrote a three cascade dropDownLists that its listData are generated from the database models.
The lists are generated with an Ajax call to action in the controller based.
I want to reuse this code and to share it with more pages.
I tried to do the following:
Write it as a Custom Widget.
currently i use 'createurl' function that calls a function in the matching controller.
I cant write JavaScript since i want to use the existing db models.
In this case i need to write the action functions in an independent file - so should i write a controller? where should i place it?
Write it as a part of a module - but it seems overkill.
any suggestions, i am sure that there is a right and simple way to do it.
You could create it as a helper. A helper is just a class in the components which has no direct action in the M->C->V action flow but can be used in any controller, model, view, component, module, etc...
I would write a helper method to call it from the controller.
Another suggestion could be to extend CController to your own base controller and have your actual controllers, extend from your custom base controller. That way you can make it easily available in every controller, and then you just set some members that contain the models to use which you set in the actual controller.
If you need more help on this, find me on freenode #yii
Im using CodeIgniter 2.0.2 and I noticed while calling a Model from within a Model, you dont need to load it.
For instance, in a Controller you need to write
$this->load->model('my_model');
$this->my_model->my_function();
But in a Model it can load just like this
$this->my_model->my_function();
Should i avoid writing my code like this, or is this safe?
I would avoid writing my code like this, but for a different reason.
Models are generally loaded from controllers, so it seems strange that you would need one model to call another one. Are you sure that there is not a better way to structure your code, such as having a model base class or using a helper for common functionality?