Corpocrat Blog » Wordpress

WordPress – How to create a login protected page?

pbu — Fri, 28 Oct 2011 15:47:19 +0000

In this tutorial, i will how you how easy it is to login protect a page and then force users to login, to view the page.

1. Create a php file named “login-protect.php” in your current theme folder.

2. Place the following code in this file

3. Go create a post, set the template to “Login Protected Template” (will show up)

4. Directly write the content and publish it.

There is one more alternative to check logins is use


if (!is_user_logged_in()) {
wp_redirect("/wp-login.php");
}

Thats it! Your login protected page is ready.

WordPress – how to add custom field when post is published?

pbu — Fri, 28 Oct 2011 14:17:41 +0000

It is dead easy to set a custom field to your post, programmatically when the post is published. For example, whenever your post is published, you might want to add a custom field “submitted” and set its value to “1″, when a post is published.

Here is how you do it. Call the publish_post hook, pass a function since the hook runs whenever a post it published.

We are creating a new custom field “submit” and setting its value to “1″ when ever the post is published. The code will only create custom field, when the user role is “author”. If you dont check for user role, this code will run for even admins and all users. We are going one more step with this code, against by checking another custom field “custom_field_1″ with a particular value exists.

We pull the value of a custom field using get_post_meta function and we create custom field for the post using add_post_meta function. Note that true parameter, makes the custom field unique and no duplication possible.


add_action('publish_post','create_custom_field')

function create_custom_field ($post_id) {
global $wpdb;
if ( current_user_can('contributor') ) {

if(get_post_meta($post_id,'custom_field_1',true) == '1'){
add_post_meta($post_ID,'submit','1',true);
return $post_id;
}

return $post_id;
}

}

For full list of action hooks, applied to posts, please go through: http://codex.wordpress.org/Plugin_API/Action_Reference

How to redirect when post submitted for review in WordPress

pbu — Fri, 28 Oct 2011 13:57:05 +0000

I was working recently on custom project and i wanted wordpress to redirect to a custom payment page, when somebody submits a post for review. It was such a simple step and quite disappointed that there was no wordpress plugin to do this job. If it was in php, i would have done this in a fly. Finally i decided to code myself, using itsy bitsy code.

Having spent whole day banging my head on the wall, i found this simple code, does the job. Put this code in your theme function.php file or create your own plugin.

My users are set on “contributor” role by default.

keep in mind the hook edit_posts, runs, when a user submits a post for review (pending). This is for contributor role. For author role, the hook publish_posts runs when authors submit posts for review.

I created a separate payment page, which i had links for paypal and 2checkout. The code checks to make sure only those users under “contributor” role (not admins) will get redirected to payment page, upon submitting a post for review.


add_action('edit_post','payment_redirect');

function payment_redirect($post_id) {
global $wpdb;
if ( current_user_can('contributor') ) {
wp_redirect("http://example.com/paypal/");
exit;
}
return $post_id;
}

Hope this helps!

WordPress – Retrieve author/user details from Post ID

pbu — Fri, 28 Oct 2011 13:35:57 +0000

Very often in your projects, you want to pull out the author data, given a post id. It is very easy do it in wordpress.

It can be accomplished by the_author_meta() function or get_the_author_meta() function.You will need call this function in your theme or plugin, through a hook

the_author_meta() –> Outputs the data, just like echo
get_the_author_meta() -> holds the value in value.

The below function, retreives user details like…

function author_details($post_ID)  {
$auth = get_post($post_ID); // gets author from post
$authid = $auth->post_author; // gets author id for the post
$user_email = get_the_author_meta('user_email',$authid); // retrieve user email
$user_firstname = get_the_author_meta('user_firstname',$authid); // retrieve firstname
$user_nickname = get_the_author_meta('nickname,$authid); // retrieve user nickname
}

The following list of user fields you can retrieve using this function.

user_login
user_pass
user_nicename
user_email
user_url
user_registered
user_activation_key
user_status
display_name
nickname
first_name
last_name
description
jabber
aim
yim
user_level
user_firstname
user_lastname
user_description
rich_editing
comment_shortcuts
admin_color
plugins_per_page
plugins_last_view
ID

For full reference, please see: http://codex.wordpress.org/Function_Reference/the_author_meta

How to assign or remove user permissions in WordPress

pbu — Fri, 28 Oct 2011 12:52:18 +0000

In wordpress, it is very easy to add and remove permissions to your wordpress registered users. For example, you can set wordpress default user role to “contributor” which means those who register in your website, automatically become contributors and they will be able to post articles in your wordpress “pending review”. In that way you restrict your users not to spam you by publishing posts. If you set the user role to “author”, then they will instantly publish posts.

Permissions, are otherwise called “capabilities” in wordpress, depending on user role. For example “subscribers” can only read in your website and cannot submit posts. Similarly “contributors” cannot delete/edit posts once published by admin.

The best plugin i have seen to customize user panel permission is adminimize. Be sure to play around with this plugin.

Be sure to read this: http://codex.wordpress.org/Roles_and_Capabilities

The good news is you alter the user permissions, which wordpress assigns by default. You may allow contributors permission to delete and edit posts even after they are published. It is so easy and can be done with just 2 lines of code.

Go to your theme folders function.php, and place the below code and this will alter permission to all your users in the admin area. You could even use this code in your plugin.

This code runs, when admin_init hook is called during load of admin section.

function change_user_permissions() {

$role = get_role( 'contributor' ); // gets the author role

$role->add_cap( 'edit_others_posts' ); //edit others' posts for current theme only
$role->add_cap( 'edit_posts' ); // edit own posts
$role->add_cap('delete_posts'); // delete own posts
$role->add_cap('publish_posts'); // publish own posts

$role->remove_cap('edit_posts'); //removes the permission set before
$role->remove_cap('delete_posts'); // delete own posts
}

add_action( 'admin_init', 'change_user_permissions');

For complete list of user capability functions, see: http://codex.wordpress.org/Roles_and_Capabilities

Published contributor posts cannot be deleted in WordPress!

pbu — Tue, 18 Oct 2011 04:21:07 +0000

User roles determine editing and deleting posts by your site users. The main difference between author role and contributor role is

Authors -> Create/Edit/Delete posts + Publish
Contributors -> Create/Edit/Delete before publishing + Submit for review (cannot Publish) + Cannot Edit/Delete Published posts

The main difference is contributors, once posts are published, posts cannot be edited or deleted by contributors. Often you want your website users to post articles to you in wordpress, and you want to approve them manually. You will also need give them provisions to edit or remove posts after publishing. Not allowing contributors to delete or edit posts sometimes force you to change their role as author. But the problem with author is the posts are published automatically and your site users could spam you. In that context, the contributor role is ideal option.

You can easily override permission contributor issue by just placing 2 lines in your functions.php in your theme.

$role = get_role( 'contributor' ); // gets the author role $role->add_cap('delete_published_posts' );

Trust me, it will work like magic!

7 Useful WordPress plugins for Clickbank affiliates

pbu — Sun, 18 Sep 2011 19:40:45 +0000

If you are a clickbank affiliate, wanting to promote clickbank products, there are 2 ways you can promote clickbank products from your wordpress site. Either directly get the affiliate code and paste it on your wordpress website or use a wordpress plugin.

1. Hop Ad Builder

Use Hop Ad Builder from clickbank, get the iframe code, and go to your wp-content themes folder, select your theme and then open single.php or sidebar.php to directly paste the code. If you specify 2 or 3 keywords in your code, clickbank will automatically show relevent ads.

Hop Ad Builder – http://www.clickbank.com/help/affiliate-help/affiliate-tools/hopad-builder/

2. Clickbank WordPress Plugins

Another way of doing it is, get a wordpress plugin. This plugin will automatically show relevent clickbank affiliate products depending on the content or plugin like ucontext which automatically picks keywords in your sitecontent and turns them into affiliate links There arent many clickbank wordpress plugins available, but those listed below should give you a pretty good start with your clickbank affiliate campaign

Hope this helps, if you are searching for a clickbank affiliate wordpress plugin

Best Tutorial Videos for WordPress Plugin Writing

pbu — Sun, 11 Sep 2011 08:17:48 +0000

Writing WordPress plugins on your own can be difficult at first, unless you are experienced wordpress developer who perfectly understood the core functionality of wordpress. Fortunately wordpress plugin writing is easy to master once you have understood the basics. I have compiled some the the youtube videos and i found pretty interesting to follow up and learn if you are new to wordpress plugin writing.

WordPress Plugin Writing in 10 Minutes

Making your First WordPress Plugin

How to Make a WordPress Plugin

Developing your First WordPress Plugin

Plugin Development Best Practises
(Part 1 to 4)

Fix: WordPress twenty ten theme shows no excerpt/summary!

pbu — Sat, 14 May 2011 15:23:54 +0000

I was using latest version of wordpress and with default twenty ten theme i had difficulty in making wordpress show excerpt summary on home and category pages. Unlike previous wordpress versions, you can even find the_content() in index.php to change to the_excerpt().

Besides these i couldnt find any option in wordpress dashboard to show up excerpts in home page and i had to do the hard way.

if you are struggling to make this work, here is how you do it. Go to twenty ten theme folder inside wp-content, and open loop.php. There you have to make a small change.. see line 137

Notice carefully on line 137 of loop.php, i have inserted is_home() within an if. Thats all you need to do!

30+ Best WordPress Themes for Personal Blogging from Themeforest

pbu — Sat, 30 Apr 2011 07:35:24 +0000

I have been a great fan of designers from themeforest who have the knack of making some stunning wordpress themes. As much i love buying wordpress themes from themeforest, it really takes a lot of time to go through thousands of themes, seeing previews and pick the best ones i prefer.

Corpocrat Blog » Wordpress

WordPress – How to create a login protected page?

WordPress – how to add custom field when post is published?

How to redirect when post submitted for review in WordPress

WordPress – Retrieve author/user details from Post ID

How to assign or remove user permissions in WordPress

Published contributor posts cannot be deleted in WordPress!

7 Useful WordPress plugins for Clickbank affiliates

1. Hop Ad Builder

2. Clickbank WordPress Plugins

Best Tutorial Videos for WordPress Plugin Writing

WordPress Plugin Writing in 10 Minutes

Making your First WordPress Plugin

How to Make a WordPress Plugin

Developing your First WordPress Plugin

Plugin Development Best Practises (Part 1 to 4)

Fix: WordPress twenty ten theme shows no excerpt/summary!

30+ Best WordPress Themes for Personal Blogging from Themeforest

1. Revolution

2. Vectors

Newscast

Templastic

Collective

Equator

Rooster

Future Blogger

Convergence

PSD Planet

Tutsplaza

MyWordpress

Copilot

Intermission

Post It

Standart

Global Press

BREST

Communitie

Premium Magazine

OPEN Community

Machtastic

Websource

ZillaPress

Community Innovation

Caulk

PIM Newspaper/Blog

Abandu

Castiel

Plugin Development Best Practises
(Part 1 to 4)