WordPress Plugins allow easy modification, customization, and enhancement to a WordPress blog. Instead of changing the core programming of WordPress, you can add functionality with WordPress Plugins.

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2k views

How to bundle a plugin with a theme, or vice versa

First off, I'm all about separating design and function. In fact, I want to remove some of the functionality from a webcomics management theme I'm developing into a plugin. I expect a person's ...
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1answer
1k views

Plugin settings not saving

I'm having a devil of a time getting my plugin settings to save. I've gone through the code so many times I have to think I've simply missed something. I'm following the Setting API, but any changes ...
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1answer
1k views

Call to undefined function get_blog_option()

In the functions.php of my plugin I've added the following code: function relativePathForUploads( $fileinfo ) { global $blog_id; $path = get_blog_option($blog_id,'siteurl'); ...
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3answers
3k views

Conflicting save_post functions when passing the post id and saving custom meta boxes for different post types

Post save functions are conflicting with each other when adding them to the save_post action hook. 2 different custom post types with 2 different (one for each post type) custom meta boxes. I'm ...
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2answers
4k views

Show dialog box in TinyMCE plugin and use WordPress php functions in it

I'm adding a TinyMCE button to my plugin. So far, I've been able to add the button and call my editor_plugin.js file and it's command. Not an easy mission btw... I want this button to show a Dialog ...
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4answers
2k views

How to link to images in my plugin regardless of the plugin folder's name

What is the correct method to refer to images from within your plugin code, so that no matter what the folder is named, they resolve correctly? I had an issue where a user downloaded my plugin twice, ...
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1answer
1k views

How to check if certain plugin exists and in expected version

I've created plugin that goes to wordpress plugin repositories. Now, I need to create another plugin (sub plugin or child plugin you may call) that require this certain plugin to be already installed ...
0
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1answer
57 views

add_theme_support using a plugin

I want to create a theme specific plugin for the opern-sourced Bootstrap Genesis theme where I can use the add_theme_support function to add or remove several mini plugins or theme modules/features ...
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0answers
258 views

Activate Plugin which is in subfolder?

I try to activate the plugin inside the plugin folder is possible ? I am adding the absolute path of the plugin as something like I have a folder as main file and subfolder contain another plugin ...
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1answer
282 views

How to add more than 1 user role to sub-menu pages

I create a plugin with 6 submenu pages. I need 4 of them to be accessible by administrator and a custom user role i created say 'coach' user. Then the 2 of them to be accessible by administrator and ...
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2answers
4k views

Set first image (external) as featured image / thumbnail

I've read through a lot of code snippets now and it seems like wether I'm to stupid or there is no solution for this. I have a setup where some information for a product is loaded via amazon API if I ...
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2answers
1k views

How to add pages to custom menus on the fly [duplicate]

Possible Duplicate: Can I add pages to my custom menu via script? My theme has a custom menu called "Custom Header Menu" and i've got a plugin that sets up site defaults and creates my ...
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3answers
397 views

Adding admin menus to wordpress

I am trying to add a menu box to Pages > Pages or Pages > Add New, basically whenever they access a page, be it to edit an existing page or add a new one, I would like to add a menu box under ...
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2answers
683 views

Possible to preset a widget's contents via a plugin script?

This plugin is a simple demo test to see if I can dynamically populate a pre-existing widget area with text. In this case, my theme has created the widget area "home-header-widget" and I'm trying to ...
0
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1answer
673 views

How to preset a sidebar widget with default content via script?

I'd like to add some code to my plugin populate a specific sidebar (if it exists) with a text widget containing preset content. Assuming that the sidebar I'm trying to preset is referenced by ID as ...
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2answers
93 views

Fixing plugin for wpdb::prepare

A previous developer created a plugin for a website I manage and everything seems to work okay, except I'm getting the error "Missing argument 2 for wpdb::prepare()". I understand that the arguments ...
5
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2answers
393 views

What is the difference between using global $current_screen and get_current_screen()?

I have been looking at get_current_screen();. I have seen there is also a global $current_screen; that I could use. Here are two examples: // Using function function wpse_post_notice() { ...
5
votes
3answers
994 views

Trouble with Transient API when W3TC is activated [closed]

I'm using W3 Total Cache 0.9.2.11 on Wordpress 3.5.2. I've got a problem with transient API and w3tc's object cache setting. When I activate 'object cache' with memcached (other settings are ...
4
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3answers
11k views

Wordpress Vote Plugin - Vote Once and Track User

I've been looking through voting plugins and cannot seem to find one that works for me. I'm hoping you can help me out before I have to build my own as I'm tight on time. I have a page that will be ...
3
votes
2answers
73 views

What is the added “complexity” of custom tables?

Wordpress Codex says: Think very carefully before adding a table because it adds complexity to your plugin that many users and site builders prefer to avoid. Why is it so? Adding more tables is ...
3
votes
1answer
405 views

Custom admin column disappearing when using Quick Edit [duplicate]

I have added a featured image column to my posts in the WP admin. This all works fine except when using the Quick Edit feature. Upon update, the column disappears, or rather isn't returned by the ajax ...
3
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4answers
761 views

How to avoid plugin name conflicts from the upgrade notifier?

I've wrapped a quick hack as a plugin to add Google Analytics to my site. Named it "Google Analytics" and, sure enough, WP offered me to upgrade my v0.1 plugin to some random plugin from the plugin ...
3
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1answer
349 views

Are shortcodes case-sensitive?

If I write a plugin and register a shortcode using this code: add_shortcode('footag', 'footag_func'); and a user uses this in their post: [FOOTAG] Is it supposed to work?
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3answers
2k views

Shortcode adding p and br tags

I apologize as I realize this has been asked before and I believe the issue is with wpautop function adding closing p or br tags but every solution I've found has not worked so I'm at a loss for ...
3
votes
2answers
876 views

Re use authenticated HTTP connection or cUrl handle

We have a bespoke Wordpress plugin, which adds a meta box to the edit post page. The plugin accesses data from a semi-private HTTP REST API. The connection is authenticated (DIGEST) and accessed ...
3
votes
1answer
913 views

Error with Custom Admin Screen in iframe Thickbox

I have a plugin that adds a new admin screen in an iframe. I created a PHP file in my plugin, and I put a link with a class of Thickbox to that. Everything works just fine, but it produces a PHP error ...
3
votes
1answer
790 views

How to use the settings API to set multidimensional arrays

I'm writing a course information plugin. Most course info is related to to a post (a custom post type of 'course'), so I have put the majority of info in the postmeta table. But some info isn't ...
3
votes
1answer
537 views

WordPress adding <br> tags into plugin content

We've written a plugin that shows reviews upon usage of a shortcode. On some sites, Wordpress is adding <br> tags throughout the shortcode content, and others it does not. The shortcode works ...
3
votes
2answers
4k views

Add a jQuery function to admin pages

I need to add a bit of document ready jQuery to post/page editors in admin. I'm hacking an old plugin that adds a text box to the editor page and handles inserting that text in a template file, but ...
3
votes
1answer
451 views

Build path for a custom portfolio plugin

I'm finishing up a personal site that I've spent many weekends on. I've left one of the (potentially) most complicated parts to the end of production. I'm looking for some advice on how to proceed ...
3
votes
1answer
450 views

How Does Wordpress Uninclude/Deactivate A Plugin?

Wordpress uses the Observer Pattern for its plugin system and operates on the premise of checking if a plugin is activated, scanning the plugins directory and storing everything in an array in the ...
2
votes
3answers
137 views

Change of query var in pre_get_posts not maintained

I'm creating a plugin that adds a custom feed. I am using a pre_get_posts filter to change the posts_per_page query var to -1 (to get all items of a custom post type). However, if I dump the $wp_query ...
2
votes
2answers
163 views

How to create collections that are edited in admin?

I'm not sure what this feature is called, but I've seen examples of this before. Lets say, on my site I want additional collections of things (besides blog posts) that have their own sections in the ...
2
votes
1answer
190 views

Common functionality between my own plugins

I read that when creating new post types, creating a settings page, and creating a new taxonomy, you should create a plugin. So I have done that. But I have functionality, which could be generalized, ...
2
votes
2answers
968 views

Implement phpunit testing on a plugin

I've just finished writing a WordPress plugin implementing shortcode tag based autocompletion based on values retrieved from a database given an id set on a cookie. The plugin has a variety of ...
2
votes
2answers
843 views

Hook for post permalink update

I would like to know what hook should I used when the permalink/url of a post is modified. My goal is to get the old permalink and new permalink so I can used it for my plugin. Thanks. [EDIT] Just ...
2
votes
1answer
38 views

Make the plugin directory recognize new version numbers

I updated readme.txt Stable Tag and tagged versions 0.2, 0.3 and latest 0.3.1 in SVN. After checkin, the new version is recognized only partly: On the dev-tab it links to the latest version (0.3.1) ...
2
votes
1answer
6k views

How to Use Checkbox in Custom Option Page Using The Setting API

Can you please let me know how I can add a checkbox to Setting API in creating Custom Options Page? I am using the following code to add a txt box which is working perfectly but I am totally confused ...
2
votes
2answers
1k views

How to check if current static page is frontpage from admin plugin

I set static page as front page. I need to know if user currently on homepage in my custom plugin. Functions is_home() and is_front_page() doesn't works, since homepage is static page. I can get an ...
2
votes
2answers
239 views

Multisite, sharing content by URL

I have a network of two sites, A.example.com and B.example.com. I'd like it so that if I create a page on A with a permalink of /Widgets I can access it on B using the same relative permalink but ...
2
votes
1answer
286 views

Scheduled event does not run at midnight

I have an event scheduled to fetch feeds from different sources at midnight. I believe for some reason it is not being triggered. I use Core Control plugin for testing. When I 'Run Now' through it, ...
2
votes
1answer
651 views

When to check if a function exists

I've just started developing a WP plugin, and i've been reading some code from other plugins as a way to get started. I've seen a couple of plugins that wrap all or some of their functions in the ...
2
votes
1answer
1k views

How to duplicate custom menu settings to export to another site

I'm trying to write a routine that will pull items from the wp_options table in order to transport them to another site. The problem I have is that if the source site has custom menus, I'd like to ...
2
votes
3answers
562 views

wp_localize_script $handle

Can anyone tell me what the "$handle" ( first parameter ) of wp_localize_script is normally used for. Thanks. P.s.: I have no idea why but stackexchange is telling me this question dosen't meet ...
1
vote
1answer
45 views

Do uploaded plugins get updates if they came from the wordpress plugin directory?

I'm a plugin developer and want to ensure my users are getting updates when I release an update within the wordpress plugin svn repo. I know if they search for the plugin through the plugin area of ...
1
vote
1answer
75 views

Adding dynamic section to WordPress

[Edit: I've added a more concrete example below] I need to convert a custom PHP site to WordPress. The site has 60,000+ media items along with a ton of metadata, all of which needs to carry over to ...
1
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1answer
91 views

Adding content before the loop in category pages

I am creating a plugin and I want to show all sub category list in the top of every category page. I had created a function and call "wp_list_categories" in that function. The problem is when I call ...
1
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1answer
98 views

An echo line in a transition_post_status action leads to “cannot modify header information - headers already sent by”

I tried to set up an action hook with transition_post_status. Inside I wanted to set up a few conditional statements. To see if everything works I wanted to place a debug statement. Problem is as soon ...
1
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2answers
2k views

$_POST form request with admin-post

I tried to use a form with the following markup using the action admin-post.php <form method='post' action='admin-post.php'> I'm using the action hook suggested by Wordpress to proceed the ...
1
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0answers
278 views

Modify how gallery.js builds the shortcode [gallery …] in tinyMCE?

The post editor helpfully removes default arguments like columns="3" from the [gallery] shortcode. How do you tell it to remove a custom attribute that has a default value? The answer at Enhance ...