laravel 5 implements template theme function, laravel template_PHP tutorial

laravel 5 implements the template theme function, laravel template

As we all know, laravel rendering template is implemented through View::make(), and the template file path needs to be explicitly specified:

Copy code The code is as follows:
function index()
{
Return View::make('index.index');
}

In this case, we can implement the template theme function ourselves. We only need to put the template file in a directory corresponding to the theme name. For example, if the default theme is default, we will write like this:

Copy code The code is as follows:
function index()
{
Return View::make('default.index.index');
}

Custom theme custom :

Copy code The code is as follows:
function index()
{
Return View::make('custom.index.index');
}

Read topic name from configuration file:

Copy code The code is as follows:
function index()
{
Return View::make(Config::get('app.theme','default').'.index.index');
}

This basically realizes the function of template theming, but there is still a problem, that is, the custom theme must implement all templates of all default themes, otherwise it will cause errors in some page template files, so further optimization:

Copy code The code is as follows:
function index()
{
$theme = Config::get('app.theme','default');
$tpl = $theme.'.index.index';
If (!View::exists($tpl)) {
          $tpl = 'default.index.index';
}
Return View::make($tpl);
}

Before rendering the template, first check whether the template file exists. If it does not exist, use the corresponding template in the default theme.

With so many lines of code, we can continue to encapsulate it. At this time, we need to use the Response object. We know that Response::view() is equivalent to View::make(), and Response also has a method Response::macro The () method can be used to define a macro, and we can encapsulate logic into the macro:

Copy code The code is as follows:
Response::macro('render',function($path,$data=array()){
$theme = Config::get('app.theme','default');
$tpl = $theme.'.'.$path;
If (!View::exists($tpl)) {
$tpl = 'default.' . $path;
}
Return Response::view($tpl,$data);
});

Use:

Copy code The code is as follows:
function index()
{
$bindings = array(
'title' => 'Home'
);
Return Response::render('index.index',$bindings);
}

It should be noted that the variables passed into the template must pass the second parameter of Response::render.

That’s it for today’s tutorial. We will analyze it in depth later. I hope you all like it.