Codeigniter Route to accept dynamic values - codeigniter-2

I am trying to create a router which will take a dynamic value and forward it to the actual route. In normal case it would be like
$route['login'] = 'auth/login';
It is possible to catch a parameter before the login in the above parameter and pass it to as the first parameter to the actual route ? like
$route['^(.+)/login$'] = "$1/user/login";

Check out the documentation[docs]. There is a very easy way to do this.
$route['(:any)/login'] = '$1/auth/login';

Starx answer is correct but I wouldn't do that, as your first param will be your controller, and if you don't know what's in the dynamic value that's impossible to manage.
I would do :
$route['(:any)/login'] = 'user/login/$1';
This way, 'anything/login' would be redirected to your User controller, to the Login function with the parameter 'anything'.

Related

Laravel pass parameters to route/action

If I want to construct this url: /categories/5/update/?hidden=1 how could I pass both {id} param and hidden param (as GET) ?
My route is:
Route::get('categories/{id}/update', 'CategoryController#update');
I don't want to make a form and put it as POST because I have a number of buttons which simply hides/shows/removes a category and dont want to make a lot of forms for simple actions, although it has nothing to do with the question
I'm just a little bit confused, because it seems like action('CategoryController#update', [$id, 'hidden' => 1]) constructs the right URL but I got no idea how it's distinguished that the first one ($id) must be in URL and the second is a GET param
You may also try this to generate the URL:
$action = action('CategoryController#update', [id => $id]) . '?hidden=1';
Also, query string could be passed with any route even without mentioning about that in Route declaration.

How to get a url parameter in Magento controller?

Is there a Magento function to get the value of "id" from this url:
http://example.com/path/action/id/123
I know I can split the url on "/" to get the value, but I'd prefer a single function.
This doesn't work:
$id = $this->getRequest()->getParam('id');
It only works if I use http://example.com/path/action?id=123
Magento's default routing algorithm uses three part URLs.
http://example.com/front-name/controller-name/action-method
So when you call
http://example.com/path/action/id/123
The word path is your front name, action is your controller name, and id is your action method. After these three methods, you can use getParam to grab a key/value pair
http://example.com/path/action/id/foo/123
//in a controller
var_dump($this->getRequest()->getParam('foo'));
You may also use the getParams method to grab an array of parameters
$this->getRequest()->getParams()
If your url is the following structure: http://yoursiteurl.com/index.php/admin/sales_order_invoice/save/order_id/1795/key/b62f67bcaa908cdf54f0d4260d4fa847/
then use:
echo $this->getRequest()->getParam('order_id'); // output is 1795
If you want to get All Url Value or Parameter value than use below code.
var_dump($this->getRequest()->getParams());
If your url is like this: http://magentoo.blogspot.com/magentooo/userId=21
then use this to get the value of url
echo $_GET['userId'];
If you want more info about this click here.
If it's a Magento module, you can use the Varien Object getter. If it's for your own module controller, you may want to use the register method.
Source: http://www.vjtemplates.com/blog/magento/register-and-registry

Can an empty URL parameter be passed to my controller?

Let's say my controller function is expecting 2 parameters: page_name, and user_name
The URL would be in the format http://mysite.com/controller_name/function_name/page_name/user_name
Assuming that sometimes I can have a blank user_name, and other times I can have blank page_name, can I pass a blank page_name by loading this URL?
http://mysite.com/controller_name/function_name//user_name
If the controller function is:
function function_name($page_name="default", $user_name=null)
...
Would the $page_name value be "default" for the 2nd URL stated above?
You can't. Server will simply ignore the extra slash.
Since both parameters are optional, you should use request parameters.
http://mysite.com/controller_name/function_name?page_name=p1&user_name=u1
And in your controller, use $this->input->get('page_name') and $this->input->get('user_name') to get the value and check if the values are empty.
I know this is an old question but the solution I came up with is simple. It goes something like this:
$this->input->get('limit') ? $this->input->get('limit') : 20;

Best practice in handling invalid parameter CodeIgniter

Let's say I have a method at Controller named
book($chapter,$page);
where $chapter and $page must be integer. To access the method, the URI will look like
book/chapter/page
For example,
book/1/1
If user try to access the URI without passing all parameter, or wrong parameter, like
book/1/
or
book/abcxyz/1
I can do some if else statements to handle, like
if(!empty($page)){
//process
}else{
//redirect
}
My question is, is there any best practice to handle those invalid parameters passed by user? My ultimate goal is to redirect to the main page whenever there is an invalid parameter? How can I achieve this?
Using the CodeIgniter routing in config/routes.php is pretty useful here, something like this:
$route['book/(:num)/(:num)'] = "book/$1/$2";
$route['book/(:any)'] = "error";
$route['book'] = "error";
Should catch everything. You can have pretty much any regular expressions in the routes, so can validate that the parameters are numeric, start with a lowercase letter, etc..
The best logic here seems to be adding the default values:
book($chapter = 1, $page = 1);
and then checking if they are numeric
So it automatically opens the 1st page of the 1st chapter if there are parameter missing or non-numeric.

Mutliple URL Segments to Index Function With CodeIgniter

Please excuse me if this is an incredibly stupid question, as I'm new to CodeIgniter.
I have a controller for my verification system called Verify. I'd like to be able to use it something like site.com/verify/123/abcd, but I only want to use the index function, so both URL segments need to go to it.
I'm sure this can be done with URL routing somehow, but I can't figure out how to pass both URL segments into Verify's index function..
Something like this in routes.php should do the job:
$route['verify/(:any)/(:any)'] = "verify/index/$1/$2";
I'm pretty sure you can just pass any controller method in CodeIgniter multiple arguments without modifying routes or .htaccess unless I misunderstood the problem.
function index($arg_one, $arg_two)
{
}
$arg_one representing the 123 and $arg_two representing the abcd in your example URI.
You will either need to edit the routes or write an htaccess rule, however i didn't understand why you want to limit to just the index function.
If you didnt wanna use routes for some reason, then you could add this function to the controller in question.
public function _remap($method_in, $params = array()) {
$method = 'process_'.$method_in;
if (method_exists($this, $method)) {
return call_user_func_array(array($this, $method), $params);
}
array_unshift($params, $method_in);
$this->index($params);
}
Basically it does the same as default behavior in CI, except instead of sending a 404 on 'cant find method', it sends unfound method calls to the index.
You would need to alter your index function to take an array as the first argument.
OR if you know that you only ever want 2 arguments, you could change the last 2 lines to
$this->index($method_in, $params[0]);
Of course both solutions fail in someone uses an argument which is the same as a method in your controller.

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