Title: Duplicate $wpdb->insert after modifying load_textdomain function
Last modified: July 16, 2017

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# Duplicate $wpdb->insert after modifying load_textdomain function

 *  [jjbte](https://wordpress.org/support/users/jjbte/)
 * (@jjbte)
 * [8 years, 11 months ago](https://wordpress.org/support/topic/duplicate-wpdb-insert-after-modifying-load_textdomain-function/)
 * I’m having a bizarre issue and I’m hoping someone can help me. I have a contact
   form plugin I created myself. To prevent multiple form submissions, a unique 
   stamp is generated when the form loads. Upon successful form submission, the 
   stamp is inserted into a dedicated database table and must be unique. If it’s
   unique, the insertion is successful, the form content is emailed, and the user
   is shown a “thank you” message. Otherwise, the user is shown a message that the
   form has already been submitted and processed. I use the form plugin on several
   sites and it works as expected: the “thank you” message is displayed upon initial
   submission, then the “already submitted” message is displayed if the user refreshes
   the page and resubmits the form.
 * I made the plugin translation-ready and my original “load textdomain” function
   was this:
 *     ```
       function my_plugin_load_textdomain() {
       	$domain = 'my_plugin';
       	$locale = apply_filters( 'plugin_locale', get_locale(), $domain );
       	$mofile = $domain . '-' . $locale . '.mo';
       	/* Check the global language folder */
       	$files = array( WP_LANG_DIR . '/my_plugin/' . $mofile, WP_LANG_DIR . '/' . $mofile );
       	foreach ( $files as $file ){
       		if ( file_exists( $file ) )
       			return load_textdomain( $domain, $file );
       	}
       	// Fallback to the plug-in language folder.
       	load_plugin_textdomain('my_plugin', false, dirname( plugin_basename( __FILE__ ) ).'/languages');
       }
       add_action( 'plugins_loaded', 'my_plugin_load_textdomain' );
       ```
   
 * I have the plugin installed on one multilingual site and it works fine. I also
   use it on a few other sites that are not multilingual.
 * Yesterday, I revised my “load textdomain” function to more closely match similar
   functions used by other plugins:
 *     ```
       function my_plugin_load_textdomain() {
       	$domain = 'my_plugin';
        	$locale = is_admin() && function_exists( 'get_user_locale' ) ? get_user_locale() : get_locale();
       	$locale = apply_filters( 'plugin_locale', $locale, $domain );
       	/**
       	 * Load Localisation files.
       	 * The first-loaded translation file overrides any following ones if the same translation is present.
       	 */		
       	unload_textdomain( $domain );
       	load_textdomain( $domain, WP_LANG_DIR . '/'.$domain.'/'.$domain.'-' . $locale . '.mo' );
       	load_plugin_textdomain( $domain, false, plugin_basename( dirname( __FILE__ ) ) . '/languages' );
       }
       add_action( 'plugins_loaded', 'my_plugin_load_textdomain' );
       ```
   
 * I tried it on just one site. The problem is I am now getting multiple stamp insertion
   attempts. Upon submission the form content is emailed, but the user is shown 
   the “already submitted” message (as if the user tried to submit the form more
   than once). And my site’s error log shows one or more “Duplicate entry” errors.
 * I returned my load_textdomain function to its original form, but the duplicate
   insertion problem persists. The plugin still works perfectly fine on other sites
   where I did NOT test this new load textdomain function.
 * I confess I do not have a firm understanding of WordPress’s load textdomain functionality,
   and I assume that’s why I can’t understand and fix this problem. Can anyone help
   me understand what went wrong and how I can fix it? If more details are needed
   regarding the contact form plugin itself, let me know and I will provide them.

The topic ‘Duplicate $wpdb->insert after modifying load_textdomain function’ is 
closed to new replies.

 * In: [Fixing WordPress](https://wordpress.org/support/forum/how-to-and-troubleshooting/)
 * 0 replies
 * 1 participant
 * Last reply from: [jjbte](https://wordpress.org/support/users/jjbte/)
 * Last activity: [8 years, 11 months ago](https://wordpress.org/support/topic/duplicate-wpdb-insert-after-modifying-load_textdomain-function/)
 * Status: not resolved

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