WordPress - Add custom field automatically when post or page is publish

Wordpress - Add custom field automatically when post or page is publish
 
Adding this snippet to the functions.php of your wordpress theme will add a custom field to a post or page when published. Don’t forget to update the FIELD_NAME and the CUSTOM VALUE.

add_action('publish_page', 'add_custom_field_automatically');
add_action('publish_post', 'add_custom_field_automatically');

function add_custom_field_automatically($post_ID) {
    global $wpdb;
    if(!wp_is_post_revision($post_ID)) {
               add_post_meta($post_ID, 'FIELD_NAME', 'CUSTOM VALUE', true);
    }
}

Wordpress - Redirect www URLs to non-www

You can redirect all of the requests for www.yourdomain.com domain to yourdomain.com by modifying your website's .htaccess file. You need to add the following lines at the beginning of the file in order to setup that redirection:


RewriteEngine on
RewriteCond %{HTTP_HOST} ^www.yourdomain.com [NC]
RewriteRule ^(.*)$ http://yourdomain.com/$1 [L,R=301]


Where yourdomain.com is your actual domain name.

Wordpress - Redirect non-www URLs to www

You can redirect all of the requests for yourdomain.com domain to www.yourdomain.com by modifying your website's .htaccess file. You need to add the following lines at the beginning of the file in order to setup that redirection:


RewriteEngine on
RewriteCond %{HTTP_HOST} ^yourdomain.com [NC]
RewriteRule ^(.*)$ http://www.yourdomain.com/$1 [L,R=301]


Where yourdomain.com is your actual domain name.

Avoiding the Not Secure Warning in Chrome

Chrome will have following impact after the version 65:

1. The websites that having Symantec-issued TLS certificates older than June 1, 2016 and that must be replaced
2. Chrome will mark non-secure pages containing password and credit card input fields as Not Secure in the URL bar.

To avoid this you need to install the SSL on the website that contains containing password and credit card input fields. 

For testing:

1. Please install the updated version of chrome - https://www.google.com/chrome/browser/canary.html
2. Configure Chrome to show the warning as it will appear in January 2017, open chrome://flags/#mark-non-secure-as and set the Mark non-secure origins as non-secure option to Display a verbose state when password or credit card fields are detected on an HTTP page. Then relaunch your browser.

https://developers.google.com/web/updates/2016/10/avoid-not-secure-warn

Wordpress - Set the maximum upload size limit for non-administrators.

/**
 * Set the upload size limit for non-administrators.
 * @param string $size Upload size limit (in bytes).
 * @return int (maybe) Filtered size limit.
 */
function filter_site_upload_size_limit( $size ) {
    // Set the upload size limit to 2 MB for users lacking the 'manage_options' capability.
    if ( ! current_user_can( 'manage_options' ) ) {
        // 2 MB.
        $size = 2 * 1024* 1024;
    }
    return $size;
}
add_filter( 'upload_size_limit', 'filter_site_upload_size_limit', 2 );

WordPress - Briefly unavailable for scheduled maintenance. Check back in a minute.

Briefly unavailable for scheduled maintenance. Check back in a minute.

How to fix it.

When this happens, WordPress generates a .maintenance file in the root directory of the installation. With normal behavior, the update script completes and WordPress auto-removes the .maintenance file. In the case of an interruption of some sort, this file doesn’t get deleted and the message won’t go away.

The answer? Delete it manually.

Here are the steps:

• Log into your web server via FTP or your web host’s control panel.*
• Locate the root of your WordPress install (this is where you’ll find folders for wp-content, wp-admin, and wp-includes)
• Look for a file called .maintenance
• Delete it

Wordpress - The requested URL /page/ was not found on this server.

How to fix The requested URL was not found on this server error for the hello/name url?

This error is due to the rewrite module and this is the .htaccess file error, please update the .htaccess file with the following code:

# BEGIN WordPress

RewriteEngine On
RewriteBase /
RewriteRule ^index\.php$ - [L]
RewriteCond %{REQUEST_FILENAME} !-f
RewriteCond %{REQUEST_FILENAME} !-d
RewriteRule . /index.php [L]

# END WordPress

For more information, please visit the wordpress codex - https://codex.wordpress.org/htaccess

Redirect incoming requests to specific URLs in IIS 7

The Rule "aboutus" is redirect a specific page to a another page.

The Rule "legal" is to redirect the all html files from a folder to a specific page.

<system .webserver="">
        <rewrite>
          <rules>
            <rule name="aboutus">
              <match url="^about-us.html$"></match>
              <action type="Redirect" url="/index.html"></action>
            </rule>
            <rule name="Legal">
              <match url="^Legal/(.*).html$"></match>
              <action type="Redirect" url="/index.html"></action>
            </rule>
          </rules>
        </rewrite>
     </system>

wordpress - error "Sorry, you are not allowed to attach files to this post."

please edit the capabilities.php file at location /wp-includes/capabilities.php:

Replace below code:

function current_user_can( $capability ) {
    $current_user = wp_get_current_user();

    if ( empty( $current_user ) )
        return false;

    $args = array_slice( func_get_args(), 1 );
    $args = array_merge( array( $capability ), $args );

    return call_user_func_array( array( $current_user, 'has_cap' ), $args );
}

With

function current_user_can( $capability ) {
    $current_user = wp_get_current_user();

    if ( empty( $current_user ) )
        return false;

    if (is_admin())
        return true;
    $args = array_slice( func_get_args(), 1 );
    $args = array_merge( array( $capability ), $args );

    return call_user_func_array( array( $current_user, 'has_cap' ), $args );
}

Upload Multiple Files Using FileUpload Control In ASP.NET 4.5 +

ASP.NET 4.5 and upper versions support this feature.

Now, FileUpload  control is built to support HTML 5, therefore it is only supported in browsers supporting HTML5. For other browsers it will work like a normal file upload control in ASP.NET.

A new Attribute introduces with the ASP.NET 4.5 FileUplaod control i.e. AllowMultiple, It takes either true or false.

In order to support multiple file uploads, set AllowMulitple="true" other than false.

<asp:FileUpload runat="server" ID="UploadImages" AllowMultiple="true" />

In addition to this control, some new properties have been included to support code-behind coding.


HasFilesCheck whether FileUpload control has multiple files or not.

PostedFilesBasically used to get all the files from the FileUpload control in the iteration.

Example code to upload files:

   <asp:FileUpload runat="server" ID="UploadImages" AllowMultiple="true" />  
   <asp:Button runat="server" ID="uploadedFile" Text="Upload" OnClick="uploadFile_Click" />  

protected void uploadFile_Click(object sender, EventArgs e) {  
    if (UploadImages.HasFiles) {  
        foreach(HttpPostedFile uploadedFile in UploadImages.PostedFiles) {  
            //code to save files  
        }  
    }  
}