Title: Script Logic
Author: Tahir Yasin
Published: <strong>16 de junio de 2014</strong>
Last modified: 10 de julio de 2014

---

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![](https://ps.w.org/script-logic/assets/banner-772x250.png?rev=932845)

Este plugin **no se ha probado con las últimas 3 versiones mayores de WordPress**.
Puede que ya no tenga soporte ni lo mantenga nadie, o puede que tenga problemas 
de compatibilidad cuando se usa con las versiones más recientes de WordPress.

![](https://ps.w.org/script-logic/assets/icon-128x128.png?rev=1159173)

# Script Logic

 Por [Tahir Yasin](https://profiles.wordpress.org/tahiryasin/)

[Descargar](https://downloads.wordpress.org/plugin/script-logic.0.3.zip)

 * [Detalles](https://es.wordpress.org/plugins/script-logic/#description)
 * [Valoraciones](https://es.wordpress.org/plugins/script-logic/#reviews)
 *  [Instalación](https://es.wordpress.org/plugins/script-logic/#installation)
 * [Desarrollo](https://es.wordpress.org/plugins/script-logic/#developers)

 [Soporte](https://wordpress.org/support/plugin/script-logic/)

## Descripción

This plugin lists all JavaScripts and Style sheets with a control field that lets
you control CSS & JavaScript files to include only on the pages where you actually
need them. The text field lets you use WP’s [Conditional Tags](https://codex.wordpress.org/Conditional_Tags),
or any general PHP code.

NOTE: The script logic you introduce is evaluated directly. Anyone who has permission
to manage options will have the right to add any code, including malicious and possibly
destructive code. There is an optional filter ‘script_logic_eval_override’ which
you can use to bypass the EVAL with your own code if needed. (See [Other Notes](https://es.wordpress.org/plugins/script-logic/other_notes/?output_format=md)).

### Writing Logic Code

The text in the ‘Logic’ field can be full PHP code and should return ‘true’ when
you need the script to load. If there is no ‘return’ in the text, an implicit ‘return’
is added to the start and a ‘;’ is added on the end. (This is just to make single
statements like is_home() more convenient.)

#### The Basics

Make good use of [WP’s own conditional tags](https://codex.wordpress.org/Conditional_Tags).
You can vary and combine code using:

 * `!` (NOT) to **reverse** the logic, eg `!is_home()` is TRUE when this is NOT 
   the home page.
 * `||` (OR) to **combine** conditions. `X OR Y` is TRUE when either X is true or
   Y is true.
 * `&&` (AND) to make conditions **more specific**. `X AND Y` is TRUE when both 
   X is true and Y is true.

There are lots of great code examples on the WP forums, and on WP sites across the
net. But the WP Codex is also full of good examples to adapt, such as [Test if post is in a descendent category](https://codex.wordpress.org/Template_Tags/in_category#Testing_if_a_post_is_in_a_descendant_category).

#### Examples

 * `is_home()` — just the main blog page
 * `!is_page('about')` — everywhere EXCEPT this specific WP ‘page’
 * `!is_user_logged_in()` — shown when a user is not logged in
 * `is_category(array(5,9,10,11))` — category page of one of the given category 
   IDs
 * `is_single() && in_category('baked-goods')` — single post that’s in the category
   with this slug
 * `strpos($_SERVER['HTTP_REFERER'], "google.com")!=false` — script to load when
   clicked through from a google search
 * `is_category() && in_array($cat, get_term_children( 5, 'category'))` — category
   page that’s a descendent of category 5
 * `global $post; return (in_array(77,get_post_ancestors($post)));` — WP page that
   is a child of page 77
 * `global $post; return (is_page('home') || ($post->post_parent=="13"));` — home
   page OR the page that’s a child of page 13

Note the extra ‘;’ on the end where there is an explicit ‘return’.

### The ‘script_logic_eval_override’ filter

Before the Script Logic code is evaluated for each script, the text of the Script
Logic code is passed through this filter. If the filter returns a BOOLEAN result,
this is used instead to determine if the script should load. Return TRUE to load.

## Capturas

 * [[
 * screenshot-1.png
 * [[
 * screenshot-2.png

## Instalación

 1. Upload plugin to the `/wp-content/plugins/` directory
 2. Activate the plugin through the ‘Plugins’ menu in WordPress
 3. Configure the plugin at `Settings -> Script Logic`
 4. That’s it.

#### Configuration

On plugin configuration page you see all script and CSS files with a logic field.
Lets suppose you are using Contact Form 7 plugin. You created a page Contact Us (
slug = contact-us) and want to include Contact Form 7 scripts only on this page.
Find the Contact Form 7 scripts on plugin’s configuration page (they have handle
= contact-form-7) and put `is_page('contact-us')` in logic field

## FAQ

  Why isn’t it working?

Try switching to the WP default theme – if the problem goes away, there is something
specific to your theme that may be interfering with the WP conditional tags.

Most probably the logic text on one of your scripts is invalid PHP

  How do I load a certain script X on just my ‘home’ page? (Or on every page except
that.)

There is some confusion between the [Main Page and the front page](https://codex.wordpress.org/Conditional_Tags#The_Main_Page).
If you want a script on your ‘front page’ whether that is a static page or a set
of posts, use is_front_page(). If it is a page using is_page(x) does not work. If
your ‘front page’ is a page and not a series of posts, you can still use is_home()
to include scripts on that main posts page (as defined in Admin > Settings > Reading).

## Reseñas

No hay valoraciones para este plugin.

## Colaboradores y desarrolladores

«Script Logic» es un software de código abierto. Las siguientes personas han colaborado
con este plugin.

Colaboradores

 *   [ Tahir Yasin ](https://profiles.wordpress.org/tahiryasin/)

[Traduce «Script Logic» a tu idioma.](https://translate.wordpress.org/projects/wp-plugins/script-logic)

### ¿Interesado en el desarrollo?

[Revisa el código](https://plugins.trac.wordpress.org/browser/script-logic/) , echa
un vistazo al [repositorio SVN](https://plugins.svn.wordpress.org/script-logic/)
o suscríbete al [registro de desarrollo](https://plugins.trac.wordpress.org/log/script-logic/)
por [RSS](https://plugins.trac.wordpress.org/log/script-logic/?limit=100&mode=stop_on_copy&format=rss).

## Registro de cambios

#### 0.1

 * First stable release.

## Meta

 *  Versión **0.3**
 *  Última actualización **hace 12 años**
 *  Instalaciones activas **10+**
 *  Versión de WordPress ** 2.8 o superior **
 *  Probado hasta **3.9.40**
 *  Idioma
 * [English (US)](https://wordpress.org/plugins/script-logic/)
 * Etiquetas:
 * [admin](https://es.wordpress.org/plugins/tags/admin/)[conditional-tags](https://es.wordpress.org/plugins/tags/conditional-tags/)
   [script](https://es.wordpress.org/plugins/tags/script/)[speed](https://es.wordpress.org/plugins/tags/speed/)
   [style](https://es.wordpress.org/plugins/tags/style/)
 *  [Vista avanzada](https://es.wordpress.org/plugins/script-logic/advanced/)

## Valoraciones

 3 de 5 estrellas.

 *  [  1 valoración de 5 estrellas     ](https://wordpress.org/support/plugin/script-logic/reviews/?filter=5)
 *  [  0 valoraciones de 4 estrellas     ](https://wordpress.org/support/plugin/script-logic/reviews/?filter=4)
 *  [  0 valoraciones de 3 estrellas     ](https://wordpress.org/support/plugin/script-logic/reviews/?filter=3)
 *  [  0 valoraciones de 2 estrellas     ](https://wordpress.org/support/plugin/script-logic/reviews/?filter=2)
 *  [  1 valoración de 1 estrellas     ](https://wordpress.org/support/plugin/script-logic/reviews/?filter=1)

[Your review](https://wordpress.org/support/plugin/script-logic/reviews/#new-post)

[Ver todas las valoraciones](https://wordpress.org/support/plugin/script-logic/reviews/)

## Colaboradores

 *   [ Tahir Yasin ](https://profiles.wordpress.org/tahiryasin/)

## Soporte

¿Tienes algo que decir? ¿Necesitas ayuda?

 [Ver el foro de soporte](https://wordpress.org/support/plugin/script-logic/)

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