From 6c7a4266410070d30f8f6bcdf9c9e67f3d6478e3 Mon Sep 17 00:00:00 2001 From: Andrey Andreev Date: Mon, 19 Jun 2017 11:33:58 +0300 Subject: [ci skip] 3.1.5 release --- user_guide_src/source/general/views.rst | 213 -------------------------------- 1 file changed, 213 deletions(-) delete mode 100644 user_guide_src/source/general/views.rst (limited to 'user_guide_src/source/general/views.rst') diff --git a/user_guide_src/source/general/views.rst b/user_guide_src/source/general/views.rst deleted file mode 100644 index 2fc0cb2ca..000000000 --- a/user_guide_src/source/general/views.rst +++ /dev/null @@ -1,213 +0,0 @@ -##### -Views -##### - -A view is simply a web page, or a page fragment, like a header, footer, -sidebar, etc. In fact, views can flexibly be embedded within other views -(within other views, etc., etc.) if you need this type of hierarchy. - -Views are never called directly, they must be loaded by a -:doc:`controller `. Remember that in an MVC framework, the -Controller acts as the traffic cop, so it is responsible for fetching a -particular view. If you have not read the -:doc:`Controllers ` page you should do so before -continuing. - -Using the example controller you created in the -:doc:`controller ` page, let's add a view to it. - -Creating a View -=============== - -Using your text editor, create a file called blogview.php, and put this -in it:: - - - - My Blog - - -

Welcome to my Blog!

- - - -Then save the file in your *application/views/* directory. - -Loading a View -============== - -To load a particular view file you will use the following method:: - - $this->load->view('name'); - -Where name is the name of your view file. - -.. note:: The .php file extension does not need to be specified - unless you use something other than .php. - -Now, open the controller file you made earlier called Blog.php, and -replace the echo statement with the view loading method:: - - load->view('blogview'); - } - } - -If you visit your site using the URL you did earlier you should see your -new view. The URL was similar to this:: - - example.com/index.php/blog/ - -Loading multiple views -====================== - -CodeIgniter will intelligently handle multiple calls to -``$this->load->view()`` from within a controller. If more than one call -happens they will be appended together. For example, you may wish to -have a header view, a menu view, a content view, and a footer view. That -might look something like this:: - - load->view('header'); - $this->load->view('menu'); - $this->load->view('content', $data); - $this->load->view('footer'); - } - - } - -In the example above, we are using "dynamically added data", which you -will see below. - -Storing Views within Sub-directories -==================================== - -Your view files can also be stored within sub-directories if you prefer -that type of organization. When doing so you will need to include the -directory name loading the view. Example:: - - $this->load->view('directory_name/file_name'); - -Adding Dynamic Data to the View -=============================== - -Data is passed from the controller to the view by way of an **array** or -an **object** in the second parameter of the view loading method. Here -is an example using an array:: - - $data = array( - 'title' => 'My Title', - 'heading' => 'My Heading', - 'message' => 'My Message' - ); - - $this->load->view('blogview', $data); - -And here's an example using an object:: - - $data = new Someclass(); - $this->load->view('blogview', $data); - -.. note:: If you use an object, the class variables will be turned - into array elements. - -Let's try it with your controller file. Open it add this code:: - - load->view('blogview', $data); - } - } - -Now open your view file and change the text to variables that correspond -to the array keys in your data:: - - - - <?php echo $title;?> - - -

- - - -Then load the page at the URL you've been using and you should see the -variables replaced. - -Creating Loops -============== - -The data array you pass to your view files is not limited to simple -variables. You can pass multi dimensional arrays, which can be looped to -generate multiple rows. For example, if you pull data from your database -it will typically be in the form of a multi-dimensional array. - -Here's a simple example. Add this to your controller:: - - load->view('blogview', $data); - } - } - -Now open your view file and create a loop:: - - - - <?php echo $title;?> - - -

- -

My Todo List

- -

- - - - -.. note:: You'll notice that in the example above we are using PHP's - alternative syntax. If you are not familiar with it you can read about - it :doc:`here `. - -Returning views as data -======================= - -There is a third **optional** parameter lets you change the behavior of -the method so that it returns data as a string rather than sending it -to your browser. This can be useful if you want to process the data in -some way. If you set the parameter to TRUE (boolean) it will return -data. The default behavior is false, which sends it to your browser. -Remember to assign it to a variable if you want the data returned:: - - $string = $this->load->view('myfile', '', TRUE); \ No newline at end of file -- cgit v1.2.3-24-g4f1b