Author: Nicolas

Remove SKU from email

override email-order-items.php in your template and comment out the SKU line.

To remove SKU from invoice, override print-content.php (from the Print Invoice and Delivery Note for Woocommerce Plugin) and comment the content with the dt and dd element on line 199 and 200.

Remove SKU from order invoice and email in virtuemart

Here are the list of files to modify to remove sku from virtuemart, order, invoices and emails:

com_virtuemart/cart/default_pricelist.php

com_virtuemart/invoice/invoice_items.php

com_virtuemart/invoice/mail_html_pricelist.php

com_virtuemart/invoice/mail_raw_pricelist.php

com_virtuemart/orders/details_items.php

When modifying tables, change the product name column to colspan=”3″ where you find colspan=”2″

Make sure to create overrides in your template

If your template already have overrides for those then save your files before updating the template as they would be overriden.

Ideally make a copy of your template to not accidently erase your modification when updating your template.

Date and time in php: common function

Convert a date in a timestamp:

strtotime ( string $datetime [, int $now = time() ] ) : int

https://www.php.net/manual/en/function.strtotime.php

Add an arbitrary amount of time in a string format:

strtotime("+1 week"), "\n";

$availability_date=get_post_meta( get_the_ID(), 'availability date', true );
$date_string=strval($availability_date);
$date_string.=" +3 weeks";
$date=new DateTime;
$diplay_time= date('d-m-Y',strtotime($date_string)) ;
$availability_date=strtotime($availability_date);

Adding a custom field in a product page

1- Add a custom field in the backend

/**
*Add a custom field in the product data section of Woocommerce product.
*/
function cf_create_custom_field(){
 $args= array(
  'id'=>'custom_text_field_title',
  'label'=>__('Custom Text Field Title','cf'),
  'class'=>'cf-custom-field',
  'desc_tip'=>true,
  'description'=>__('Enter the description of your custom text field','cf'),
 );
woocommerce_wp_text_input($args);

}
add_action('woocommerce_product_options_general_product_date','cf_create_cutom_field');

You can find the list of accepted parameters here: https://github.com/woocommerce/woocommerce/blob/master/includes/admin/wc-meta-box-functions.php

Source: https://pluginrepublic.com/add-custom-fields-woocommerce-product/

/**
*Save the custom field
*/
function cf_save_custom_field($post_id){
  $product=wc_get_product($post_id);
  $title=isset($_POST['custom_text_field_title'])?$_POST['custom_text_field_title']:'';
  $product->update_meta_data('custom_text_field_title',sanitize_text_field($title));
  $product->save();
}
add_action('woocommerce_process_product_meta','cf_save_custom_field');
/*
*Display custom field on  the front end
*/
function cf_display_custom_field(){
  global $post;
  //Check for the custom field value
  $product=wc_get_product($post->ID);
  $title=$product->get_meta('custom_text_field_title');
  if ($title){
   //Only display our field if we've got a value for the field title
   printf(
   '<div class="cf-custom-field-wrapper"><label for ="cf-title-field">%s</label><input type="text" id="cf-title-field" name="cf-title-field" value=""></div>',
   esc_html($title)
   );
  }
}
add_action('woocommerce_before_add_to_cart_button','cf_display_custom_field');

Writing content

In case you have no idea about the content a page should have but you have to write it anyway, because you client absolutly want it or because there is an obvious use for such a landing page but you have no inspiration on the content, I present you with a methodology to write a text about a given topic whithout prior knowledge:

Take the few first search result pages and use it as inspiration for the page structure and content. Once you have an overview of the different elements that needs to feature on the page. You will have a better idea on how to layout the page.

With the example gathered from to pages you can now write a text that presents your topic/product/category correctly, using appropriate keyword and satisfying customer expectation and ansewering customer intent.

Even if the pages you use for inspiration or as source were ranking well they might be overooking important keyword or not be fully satisfying for the customer. So don’t hesitate to take further step in order to write better text using a more engaging layout.

Consult your analytic to find for user query using the target keyword(s) to check if customer have recurring question or associate your keyword with specific adjectives or query.

What is a “Final Class” in php?

“PHP 5 introduces the final keyword, which prevents child classes from overriding a method by prefixing the definition with final. If the class itself is being defined final then it cannot be extended”

https://www.php.net/manual/en/language.oop5.final.php#:~:text=PHP%205%20introduces%20the%20final,then%20it%20cannot%20be%20extended.&text=Note%3A%20Properties%20and%20constants%20cannot,may%20be%20declared%20as%20final.

Add pagination to WordPress archives or search results.

There are several options to do so.

Here are two exemples, on being taken from the twentyfifteen template.

The class is to apply woocommerce styling in case you are using it.

      <div>
         <nav class="woocommerce-pagination bt_search_pagination"> <?php
          // Previous/next page navigation.

          the_posts_pagination(

              array(

                  'prev_text'          => __( 'Previous page', 'twentyfifteen' ),

                  'next_text'          => __( 'Next page', 'twentyfifteen' ),

                  'before_page_number' => '<span class="meta-nav screen-reader-text">' . __( 'Page', 'twentyfifteen' ) . ' </span>',

              )

          );?> 
      </nav></div>

A second example more compact:

     <div class="row">
          <div class="col-md-12 text-center">
              <nav class="woocommerce-pagination bt_search_pagination"><?php echo paginate_links(); ?></nav>
          </div>
      </div>

You can add this code in search.php or catregory.php

Remove base for category permalink in woocommerce

https://docs.woocommerce.com/document/removing-product-product-category-or-shop-from-the-urls/
TLDNR: Not advisable

I have this idea that longer URI path, or deeper “file hierarchy” would have a negative SEO impact. But recently John Mueller made a statement that URI length did not have any negative SEO impact. The most important thing is that your important page are easily accessible to the search engine, and probably to your customer too.

In this article, Search Engine Journal speaks about length and recommend to keep it short but it’s an extrapolation on what J. Mueller said regarding URI longer than 1000 characters may not be a good practice (which is different from: “the shorter, the better”).

https://www.searchenginejournal.com/googles-john-mueller-recommends-keeping-urls-under-1000-characters/318739/#:~:text=Google’s%20John%20Mueller%20recently%20stated,under%201%2C000%20characters%20in%20length.&text=With%20that%20said%2C%20it’s%20generally,than%20they%20need%20to%20be.

In a more recent tweet, John was clear about that point:

https://www.seroundtable.com/google-url-length-seo-28952.html

Given that woocommerce does not recommend to remove the product-category base from the permalinks and that there is no clear SEO SEO advantage to it, then there is no reason to implement this feature.

If anything you can implement the option to have the product category included in your product permalink for SEO purpose. Having the product category in your URL might help google identify which category your product belong to and helped it rank for those keywords.

How a wordpress page is generated

https://codex.wordpress.org/Query_Overview

https://web.archive.org/web/20170524181634/http://humanshell.net/2011/08/wordpress-initialization

All http query to the webserver are send to index.php (this is not a redirect as the rule don’t use the redirect flag [R]) in the root folder. The redirect occurs in .htaccess with mod_rewrite

mod_rewrite operate by using a PCRE* regular expression

*PCRE: Perl Compatible Regular Expression

This operation retains the original URI that can be requested with $_server[‘REQUEST_URI’]

Below is the cascade of file that are succesfully called from index.php (up the 5th level but it needs to be expanded)

index.php

set the constant ‘WP_USE_THEMES’ to true and require wp-blog-header.php

wp-blog-header.php

execute wp(). This function is defined in functions.php

requires wp-load.php and template-loader.php

wp-load.php AND template-loader.php

wp-load.php requires wp-config.php

wp-load.php set the constant ‘ABSPATH’

wp-config.php requires wp-settings.php

wp-settings.php

requires:

  • version.php
  • load.php
  • class-wp-paused-extensions-storage.php
  • class-wp-fatal-error-handler.php
  • class-wp-reccovery-mode-cookie-service.php
  • class-wp-recovery-mode-key-service.php
  • class-wp-recovery-mode-link-service.php
  • class-wp-recovery-mode-email-service.php
  • class-wp-recovery-mode.php
  • error-protection.php
  • default-constant.php
  • plugin.php

and also:

  • compat.php
  • class-wp-list-util.php
  • formatting.php
  • meta.php
  • functions.php
  • class-wp-meta-query.php
  • class-wp-matchesmapregex.php
  • class-wp.php
  • class-wp-error.php
  • pomo/mo.php

and most of wordpress as well:

  • class-wp-walker.php
  • class-wp-ajax-response.php
  • capabilities.php
  • class-wp-roles.php
  • class-wp-role.php
  • class-wp-user.php
  • class-wp-query.php
  • query.php
  • class-wp-date-query.php
  • theme.php
  • class-wp-theme.php
  • template.php
  • class-wp-user-query.php
  • class-wp-session-tokens.php
  • class-wp-user-meta-sessions-tokens.php
  • class-wp-metadata-session-tokens.php
  • class-wp-metadata-lazyloader.php
  • general-template.php
  • link-template.php
  • author-template.php
  • post.php
  • class-walker-page.php
  • class-walker-page-dropdown.php
  • class-wp-post-type.php
  • class-wp-post.php
  • post-template.php
  • revision.php
  • post-formats.php
  • post-thumbnail-template.php
  • category.php
  • class-walker-category.php
  • class-walker-category-dropdown.php
  • category-template.php
  • comment.php
  • class-wp-comment.php
  • class-wp-comment-query.php
  • class-walker-comment.php
  • comment-template.php
  • rewrite.php
  • class-wp-rewrite.php
  • feed.php
  • bookmark.php
  • bookmark-template.php
  • kses.php
  • cron.php
  • deprecated.php
  • script-loader.php
  • taxonomy.php
  • class-wp-taxonomy.php
  • class-wp-term.php
  • class-wp-term-query.php
  • class-wp-tax-query.php
  • update.php
  • canonical.php
  • shortcodes.php
  • embed.php
  • class-wp-embed.php
  • class-wp-oembed.php
  • class-wp-oembed-controller.php
  • media.php
  • http.php
  • class-http.php
  • class-wp-http-streams.php
  • class-wp-http-curl.php
  • class-wp-http-proxy.php
  • class-wp-http-cookie.php
  • class-wp-http-encoding.php
  • class-wp-http-response.php
  • class-wp-http-requests-response.php
  • class-wp-http-requests-hooks.php
  • widgets.php
  • class-wp-widget.php
  • class-wp-widget-factory.php
  • nav-menu.php
  • nav-menu-template.php
  • admin-bar.php
  • rest-api.php
  • rest-api/class-wp-rest-server.php
  • rest-api/class-wp-rest-response.php
  • rest-api/class-wp-rest-request.php
  • rest-api/endpoints/class-wp-rest-controller.php
  • rest-api/endpoints/class-wp-rest-posts-controller.php
  • rest-api/endpoints/class-wp-rest-attachments-controller.php
  • rest-api/endpoints/class-wp-rest-post-types-controller.php
  • rest-api/endpoints/class-wp-rest-post-statuses-controller.php
  • rest-api/endpoints/class-wp-rest-revisions-controller.php
  • rest-api/endpoints/class-wp-rest-autosaves-controller.php
  • rest-api/endpoints/class-wp-rest-taxonomies-controller.php
  • rest-api/endpoints/class-wp-rest-terms-controller.php
  • rest-api/endpoints/class-wp-rest-users-controller.php
  • rest-api/endpoints/class-wp-rest-comments-controller.php
  • rest-api/endpoints/class-wp-rest-search-controller.php
  • rest-api/endpoints/class-wp-rest-blocks-controller.php
  • rest-api/endpoints/class-wp-rest-block-renderer-controller.php
  • rest-api/endpoints/class-wp-rest-settings-controller.php
  • rest-api/endpoints/class-wp-rest-themes-controller.php
  • rest-api/fields/class-wp-rest-meta-fields.php
  • rest-api/fields/class-wp-rest-comment-meta-fields.php
  • rest-api/fields/class-wp-rest-post-meta-fields.php
  • rest-api/fields/class-wp-rest-term-meta-fields.php
  • rest-api/fields/class-wp-rest-user-meta-fields.php
  • rest-api/search/class-wp-rest-search-handler.php
  • rest-api/search/class-wp-rest-post-search-handler.php
  • class-wp-block-type.php
  • class-wp-block-styles-registry.php
  • class-wp-block-type-registry.php
  • class-wp-block-parser.php
  • blocks.php
  • blocks/archives.php
  • blocks/block.php
  • blocks/calendar.php
  • blocks/categories.php
  • blocks/latest-comments.php
  • blocks/latest-posts.php
  • blocks/rss.php
  • blocks/search.php
  • blocks/shortcode.php
  • blocks/social-link.php
  • blocks/tag-cloud.php