Databases
StackOverflow2013
Postsdbo
PO
 

Note that there are some explanatory texts on larger screens.

plurals
  1. PO
    primarykey
    data
    text
    <blockquote> <p>(i believe) the file isn't loaded unless the class is used.</p> </blockquote> <p>Correct. That's how autoloading works.</p> <blockquote> <p>My question is what's likely to be the most efficient way to make calls to these helper classes?</p> </blockquote> <p>Efficient, well, what's efficient? Maybe using C/C++ and compiling the stuff. Anyway, let's try:</p> <blockquote> <p>Should I make all methods in a given helper static, </p> </blockquote> <p>No.</p> <blockquote> <p>or maybe use a singleton pattern for the helpers </p> </blockquote> <p>No.</p> <blockquote> <p>or should I just create a new instance wherever it's used (e.g. an instance in the view an instance in the controller...) ?</p> </blockquote> <p>Yes. If you only use them from time to time, that's very efficient because you can make use of anything as you see fit.</p> <p>In case you use the <em>same</em> object more often, pass it around, inject it into other functions as it's needed.</p> <p>This way you will get the most benefit from autoloading.</p> <hr> <p>Helper object that can have multiple helper you can pass around even, will autoload on first access (lazy loading):</p> <pre><code>class Helper { private $helpers = array(); public function __get($name) { $name = strtolower($name); if(!isset($this-&gt;helpers[$name])) { $classname = ucfirst($name).'Helper'; $this-&gt;helpers[$name] = new $classname; } return $this-&gt;helpers[$name]; } } class Controller { private $helper; public function __construct() { $this-&gt;helper = new Helper(); } public function indexAction() { $ingredients = $this-&gt;helper-&gt;something-&gt;getIngredientsList(); .... } } </code></pre>
    singulars
    1. This table or related slice is empty.
    1. POWhats the most efficient way to make repeated use of a class in PHP?
      singulars
      1. PTQuestion
    1. PTAnswer
    1. UShakre
    1. UShakre
    plurals
    1. This table or related slice is empty.
    1. This table or related slice is empty.
    1. POWhats the most efficient way to make repeated use of a class in PHP?
      singulars
      1. PTQuestion
    1. This table or related slice is empty.
    1. This table or related slice is empty.
    1. COMy controller runs first, I could extract() all the helpers i use there to pass them to the view. Is it likely to be more efficient than creating a new SomethingHelper() in the view/any other controllers that get used? It would probably mean having to check to see if the helper variable was already defined and then create an instance if not. I don't know if this adds much overhead.
      singulars
      1. PO
      1. USNick Cardoso
    2. COCreate a helper class that is part of your controller you can assign helpers to. See also the magic methods classes offer in PHP, you can load the helper the first time a property is accessed: http://php.net/manual/en/language.oop5.overloading.php, http://php.net/manual/en/language.oop5.magic.php
      singulars
      1. PO
      1. UShakre
    3. CO@user984830: I added a small example, it's just a quick mock, but might already have all you need. Keep things simple, that's efficient.
      singulars
      1. PO
      1. UShakre
 

Querying!

 
Guidance
A row detail

Detail views are divided into sections. All the information in the data section comes from columns in the selected row. The other sections display data from other, related rows.

Related data can be related in a to-one or a to-many fashion. Captions of data related in a to-many fashion link to a list view showing a filtered view of the table.

Try moving around until you find a non-empty to-many entry and click on the label to get to one. You can move back to the root by clicking on the database name in the header.

SQuiL has stopped working due to an internal error.

If you are curious you may find further information in the browser console, which is accessible through the devtools (F12).

Reload