{"id":828832,"date":"2025-01-13T05:46:41","date_gmt":"2025-01-13T05:46:41","guid":{"rendered":"https:\/\/www.knowband.com\/blog\/?p=828832\/"},"modified":"2025-01-13T05:49:01","modified_gmt":"2025-01-13T05:49:01","slug":"save-display-custom-form-field-value-using-prestashop-hook","status":"publish","type":"post","link":"https:\/\/www.knowband.com\/blog\/prestashop-blog\/save-display-custom-form-field-value-using-prestashop-hook\/","title":{"rendered":"How to save and display a custom form field value using the PrestaShop hook"},"content":{"rendered":"<p><strong>PrestaShop<\/strong> is a robust open-source e-commerce platform designed for flexibility and customization. It allows developers to modify and enhance its core functionality using <strong>hooks<\/strong>, which are predefined entry points in the system. These hooks enable seamless integration of custom features, ensuring that updates and maintenance of the core system remain hassle-free.<\/p>\n<p>This blog provides a comprehensive guide to adding, saving, and displaying custom fields for both product and customer forms in PrestaShop.<\/p>\n<p>By the end of this blog, you will have a thorough understanding of how to <a href=\"https:\/\/www.knowband.com\/prestashop-custom-registration-field\">create custom form fields in Prestashop<\/a>, store their data in the database, and display this information in the Admin panel.<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"size-full wp-image-828842\" src=\"https:\/\/www.knowband.com\/blog\/wp-content\/uploads\/2025\/01\/How-to-save-and-display-a-custom-form-field-value-using-the-PrestaShop-hook-2.jpg\" alt=\"How-to-save-and-display-a-custom-form-field-value-using-the-PrestaShop-hook-2\" width=\"760\" height=\"620\" srcset=\"https:\/\/www.knowband.com\/blog\/wp-content\/uploads\/2025\/01\/How-to-save-and-display-a-custom-form-field-value-using-the-PrestaShop-hook-2.jpg 760w, https:\/\/www.knowband.com\/blog\/wp-content\/uploads\/2025\/01\/How-to-save-and-display-a-custom-form-field-value-using-the-PrestaShop-hook-2-300x245.jpg 300w\" sizes=\"auto, (max-width: 760px) 100vw, 760px\" \/><\/p>\n<h2><strong>Step 1: Adding Custom Fields to Product and Customer Forms-<\/strong><\/h2>\n<p>The first step in customizing PrestaShop involves injecting new fields into the forms for products and customers.<\/p>\n<h3><strong>Adding Custom Fields to the Product Form<\/strong><\/h3>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"size-large wp-image-828833 aligncenter\" src=\"https:\/\/www.knowband.com\/blog\/wp-content\/uploads\/2025\/01\/Adding-Custom-Fields-to-Product-and-Customer-Forms-in-Prestashop-1024x234.png\" alt=\"Adding Custom Fields to Product and Customer Forms in Prestashop\" width=\"648\" height=\"148\" srcset=\"https:\/\/www.knowband.com\/blog\/wp-content\/uploads\/2025\/01\/Adding-Custom-Fields-to-Product-and-Customer-Forms-in-Prestashop-1024x234.png 1024w, https:\/\/www.knowband.com\/blog\/wp-content\/uploads\/2025\/01\/Adding-Custom-Fields-to-Product-and-Customer-Forms-in-Prestashop-300x69.png 300w, https:\/\/www.knowband.com\/blog\/wp-content\/uploads\/2025\/01\/Adding-Custom-Fields-to-Product-and-Customer-Forms-in-Prestashop-768x176.png 768w, https:\/\/www.knowband.com\/blog\/wp-content\/uploads\/2025\/01\/Adding-Custom-Fields-to-Product-and-Customer-Forms-in-Prestashop.png 1258w\" sizes=\"auto, (max-width: 648px) 100vw, 648px\" \/><\/p>\n<p>For this, we will use the <strong>displayAdminProductsExtra<\/strong> hook to append the custom field to the product form. This hook is triggered whenever a product is edited in the admin panel.<\/p>\n<p><strong>Hook Overview: <\/strong>This hook allows you to add any extra fields or information to the product creation\/edit page.<\/p>\n<h3><strong>Explanation of Code:<\/strong><\/h3>\n<p>The example provided demonstrates how to fetch existing data for a custom field from the database and display it in the form. The product ID is retrieved dynamically from the <strong>$params<\/strong>, ensuring that the data displayed corresponds to the product being edited.<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"module_image\" src=\"https:\/\/cdn.knowband.com\/image\/cache\/data\/plugin_logo\/custom-field-registration--1000-x-1000-740x740.webp\" alt=\"Custom Registration Fields - Prestashop Addons\" width=\"100\" height=\"100\" \/><\/p>\n<div class=\"module_content_part\">\n<h3 class=\"title\">Add Custom Fields on the Customer Registration Form<\/h3>\n<p class=\"module_content_text\"><strong>Custom Registration Fields &#8211; Prestashop Addons<\/strong><\/p>\n<p><a class=\"link_2_to_module\" style=\"display: inline-block; color: #f36!important;\" href=\"https:\/\/www.knowband.com\/prestashop-custom-registration-field\" target=\"_blank\" rel=\"noopener\"><span class=\"read-more\">SHOP NOW<\/span><\/a><\/p>\n<\/div>\n<style>\n.module_in_content_container { display: flex; flex-direction: column; padding: 20px; border: 1px solid #ccc; font-size: 16px; line-height: 26px; box-shadow: 0 3px 0 #ebebeb; -webkit-box-shadow: 0 3px 0 #ebebeb; position: relative; margin-bottom: 1.5em; } .module_in_content_container>a { position: absolute; left: 0; top: 0; width: 100%; height: 100%; } .module_content { display: flex; align-items: flex-start; } .module_content img { max-width: 100px; margin-right: 20px; } .module_content_part p.module_content_text { margin-bottom: 10px; margin-top: 0; font-size: 18px; color: #000; } .module_content h3 { font-size: 24px; font-weight: 700; line-height: 1.5em; padding-left: 0; padding-top: 0; margin: 0; } .read-more { font-size: 18px; font-weight: 700; line-height: 1.5em; position: relative; display: inline-block; text-transform: uppercase; color: #f36; } .read-more:after { position: absolute; content: ''; width: 1.5em; height: 1.5em; top: -1px; right: -1.5em; background: url(https:\/\/knowband.com\/mobile-app\/wp-content\/uploads\/images\/readmore-arrow.svg) no-repeat center \/ .75em; transition: all .2s; } .read-more:focus, .read-more:hover { text-decoration: none; cursor: pointer; } .read-more:hover:after { right: -2em; transition: all .2s; } @media (max-width: 600px) { .module_content { flex-direction: column; align-items: center; text-align: center; } .module_content img { margin: 0 auto 20px auto; max-width: 100%; } .module_content .title { flex-basis: auto; margin-top: 20px; } .module_content_part p.module_content_text { font-size: 16px; line-height: 24px; } .read-more { font-size: 16px;}}<\/style>\n<h3><strong>Adding Custom Fields to the Customer Form<\/strong><\/h3>\n<p>Similarly, the <strong>displayAdminCustomersForm<\/strong> hook provides an entry point for injecting fields into the customer form.<\/p>\n<p><strong>Hook Overview: <\/strong>This hook is triggered when rendering the customer creation\/edit form.<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"size-large wp-image-828834 aligncenter\" src=\"https:\/\/www.knowband.com\/blog\/wp-content\/uploads\/2025\/01\/Hook-Overview-Adding-Custom-Fields-to-Product-and-Customer-Forms-in-Prestashop-1024x171.png\" alt=\"Hook Overview- Adding Custom Fields to Product and Customer Forms in Prestashop\" width=\"648\" height=\"108\" srcset=\"https:\/\/www.knowband.com\/blog\/wp-content\/uploads\/2025\/01\/Hook-Overview-Adding-Custom-Fields-to-Product-and-Customer-Forms-in-Prestashop-1024x171.png 1024w, https:\/\/www.knowband.com\/blog\/wp-content\/uploads\/2025\/01\/Hook-Overview-Adding-Custom-Fields-to-Product-and-Customer-Forms-in-Prestashop-300x50.png 300w, https:\/\/www.knowband.com\/blog\/wp-content\/uploads\/2025\/01\/Hook-Overview-Adding-Custom-Fields-to-Product-and-Customer-Forms-in-Prestashop-768x128.png 768w, https:\/\/www.knowband.com\/blog\/wp-content\/uploads\/2025\/01\/Hook-Overview-Adding-Custom-Fields-to-Product-and-Customer-Forms-in-Prestashop.png 1399w\" sizes=\"auto, (max-width: 648px) 100vw, 648px\" \/><\/p>\n<p>By assigning Smarty variables, the template for the custom field is seamlessly integrated into the admin interface.<\/p>\n<h2><strong>Step 2: Creating the Database Fields-<\/strong><\/h2>\n<h3><strong>Why Modify the Database?<\/strong><\/h3>\n<p>PrestaShop adheres to a relational database model. By adding custom columns to the <strong>ps_product<\/strong> and <strong>ps_customer<\/strong> tables, you ensure that your custom data remains associated with its respective product or customer.<\/p>\n<h3><strong>SQL Queries:<\/strong><\/h3>\n<p>The provided SQL scripts demonstrate how to add columns to the <strong>ps_product<\/strong> and <strong>ps_customer<\/strong> tables. These queries are executed once to prepare the database for storing the custom field values.<\/p>\n<h3><strong>SQL Query for Product:<\/strong><\/h3>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"size-full wp-image-828835 aligncenter\" src=\"https:\/\/www.knowband.com\/blog\/wp-content\/uploads\/2025\/01\/Creating-the-Database-Fields-SQL-Query-for-Product.png\" alt=\"Creating the Database Fields - SQL Query for Product\" width=\"811\" height=\"45\" srcset=\"https:\/\/www.knowband.com\/blog\/wp-content\/uploads\/2025\/01\/Creating-the-Database-Fields-SQL-Query-for-Product.png 811w, https:\/\/www.knowband.com\/blog\/wp-content\/uploads\/2025\/01\/Creating-the-Database-Fields-SQL-Query-for-Product-300x17.png 300w, https:\/\/www.knowband.com\/blog\/wp-content\/uploads\/2025\/01\/Creating-the-Database-Fields-SQL-Query-for-Product-768x43.png 768w\" sizes=\"auto, (max-width: 811px) 100vw, 811px\" \/><\/p>\n<h3><strong>SQL Query for Customer:<\/strong><\/h3>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"size-full wp-image-828836 aligncenter\" src=\"https:\/\/www.knowband.com\/blog\/wp-content\/uploads\/2025\/01\/Creating-the-Database-Fields-SQL-Query-for-Customer.png\" alt=\"Creating the Database Fields - SQL Query for Customer\" width=\"773\" height=\"52\" srcset=\"https:\/\/www.knowband.com\/blog\/wp-content\/uploads\/2025\/01\/Creating-the-Database-Fields-SQL-Query-for-Customer.png 773w, https:\/\/www.knowband.com\/blog\/wp-content\/uploads\/2025\/01\/Creating-the-Database-Fields-SQL-Query-for-Customer-300x20.png 300w, https:\/\/www.knowband.com\/blog\/wp-content\/uploads\/2025\/01\/Creating-the-Database-Fields-SQL-Query-for-Customer-768x52.png 768w\" sizes=\"auto, (max-width: 773px) 100vw, 773px\" \/><\/p>\n<h3><strong>Best Practices:<\/strong><\/h3>\n<ul>\n<li>Ensure creating a backup of the database before implementing or proceeding with <strong>displayAdminProductsExtra<\/strong> any schema changes.<\/li>\n<li>Use column names that clearly describe their purpose to avoid confusion.<\/li>\n<\/ul>\n<h2><strong>Step 3: Designing the Custom Form Templates-<\/strong><\/h2>\n<p>Templates play a vital role in ensuring that custom fields blend seamlessly into the PrestaShop admin UI. Using Smarty, PrestaShop\u2019s templating engine, you can design user-friendly and responsive forms.<\/p>\n<h3><strong>Product Form Template (custom_product_form.tpl):<\/strong><\/h3>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"size-large wp-image-828837 aligncenter\" src=\"https:\/\/www.knowband.com\/blog\/wp-content\/uploads\/2025\/01\/Designing-the-Custom-Form-Templates-Product-Form-Template-1024x102.png\" alt=\"Designing the Custom Form Templates - Product Form Template\" width=\"648\" height=\"65\" srcset=\"https:\/\/www.knowband.com\/blog\/wp-content\/uploads\/2025\/01\/Designing-the-Custom-Form-Templates-Product-Form-Template-1024x102.png 1024w, https:\/\/www.knowband.com\/blog\/wp-content\/uploads\/2025\/01\/Designing-the-Custom-Form-Templates-Product-Form-Template-300x30.png 300w, https:\/\/www.knowband.com\/blog\/wp-content\/uploads\/2025\/01\/Designing-the-Custom-Form-Templates-Product-Form-Template-768x76.png 768w, https:\/\/www.knowband.com\/blog\/wp-content\/uploads\/2025\/01\/Designing-the-Custom-Form-Templates-Product-Form-Template.png 1279w\" sizes=\"auto, (max-width: 648px) 100vw, 648px\" \/><\/p>\n<h3><strong>Customer Form Template (custom_customer_form.tpl):<\/strong><\/h3>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"size-large wp-image-828838 aligncenter\" src=\"https:\/\/www.knowband.com\/blog\/wp-content\/uploads\/2025\/01\/Designing-the-Custom-Form-Templates-Customer-Form-Template-1024x86.png\" alt=\"Designing the Custom Form Templates - Customer Form Template\" width=\"648\" height=\"54\" srcset=\"https:\/\/www.knowband.com\/blog\/wp-content\/uploads\/2025\/01\/Designing-the-Custom-Form-Templates-Customer-Form-Template-1024x86.png 1024w, https:\/\/www.knowband.com\/blog\/wp-content\/uploads\/2025\/01\/Designing-the-Custom-Form-Templates-Customer-Form-Template-300x25.png 300w, https:\/\/www.knowband.com\/blog\/wp-content\/uploads\/2025\/01\/Designing-the-Custom-Form-Templates-Customer-Form-Template-768x64.png 768w, https:\/\/www.knowband.com\/blog\/wp-content\/uploads\/2025\/01\/Designing-the-Custom-Form-Templates-Customer-Form-Template.png 1280w\" sizes=\"auto, (max-width: 648px) 100vw, 648px\" \/><\/p>\n<h3><strong>Enhancements:<\/strong><\/h3>\n<ul>\n<li>Add validation: Use JavaScript to validate user input before submission.<\/li>\n<li>Styling: Enhance the form with CSS classes for a consistent look and feel.<\/li>\n<\/ul>\n<h2><strong>Step 4: Saving the Custom Field Values-<\/strong><\/h2>\n<p>Once the form fields are submitted, the values need to be saved to the database. PrestaShop hooks like <strong>actionProductSave<\/strong> and <strong>actionCustomerSaveAfter<\/strong> allow developers to execute custom logic during the save operation.<\/p>\n<h3><strong>Saving Product Field Values<\/strong><\/h3>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"size-full wp-image-828839 aligncenter\" src=\"https:\/\/www.knowband.com\/blog\/wp-content\/uploads\/2025\/01\/Saving-the-Custom-Field-Values-Saving-Product-Field.png\" alt=\"Saving the Custom Field Values - Saving Product Field\" width=\"624\" height=\"274\" srcset=\"https:\/\/www.knowband.com\/blog\/wp-content\/uploads\/2025\/01\/Saving-the-Custom-Field-Values-Saving-Product-Field.png 624w, https:\/\/www.knowband.com\/blog\/wp-content\/uploads\/2025\/01\/Saving-the-Custom-Field-Values-Saving-Product-Field-300x132.png 300w\" sizes=\"auto, (max-width: 624px) 100vw, 624px\" \/><\/p>\n<p>The <strong>actionProductSave<\/strong> hook ensures that the custom field data is saved when a product is saved\/updated:<\/p>\n<h3><strong>Saving Customer Field Values<\/strong><\/h3>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"size-full wp-image-828840 aligncenter\" src=\"https:\/\/www.knowband.com\/blog\/wp-content\/uploads\/2025\/01\/Saving-the-Custom-Field-Values-Saving-Customer-Field.png\" alt=\"Saving the Custom Field Values - Saving Customer Field\" width=\"602\" height=\"265\" srcset=\"https:\/\/www.knowband.com\/blog\/wp-content\/uploads\/2025\/01\/Saving-the-Custom-Field-Values-Saving-Customer-Field.png 602w, https:\/\/www.knowband.com\/blog\/wp-content\/uploads\/2025\/01\/Saving-the-Custom-Field-Values-Saving-Customer-Field-300x132.png 300w\" sizes=\"auto, (max-width: 602px) 100vw, 602px\" \/><\/p>\n<p>The <strong>actionCustomerSaveAfter<\/strong> hook is used to save the custom customer field data:<\/p>\n<h2><strong>Step 5: Displaying Custom Field Values-<\/strong><\/h2>\n<p>Displaying custom fields involves retrieving the stored values and rendering them appropriately in the admin interface.<\/p>\n<h3><strong>Displaying Product Custom Field Values<\/strong><\/h3>\n<p>Use the same <strong>displayAdminProductsExtra<\/strong> hook to show the custom field value alongside other product details. The retrieved data can be displayed in either a read-only or editable format, depending on the use case.<\/p>\n<h3><strong>Displaying Customer Custom Field Values<\/strong><\/h3>\n<p>Similarly, the <strong>displayAdminCustomersForm<\/strong> hook retrieves and displays the custom field value on the customer form.<\/p>\n<h3><strong>Additional Tips for Developers<\/strong><\/h3>\n<h3><strong>1. Testing and Debugging<\/strong>:<\/h3>\n<ul>\n<li>Use PrestaShop&#8217;s debug mode to identify issues.<\/li>\n<li>Test your custom fields with various inputs to ensure compatibility.<\/li>\n<\/ul>\n<h3><strong>2. Scalability<\/strong>:<\/h3>\n<ul>\n<li>If you want to use multiple custom fields, consider creating a separate table to store them dynamically.<\/li>\n<li>Use indexed columns for faster queries.<\/li>\n<\/ul>\n<h3><strong>3. Security<\/strong>:<\/h3>\n<ul>\n<li>Always validate and sanitize user inputs using pSQL().<\/li>\n<li>Restrict access to these fields based on user roles, if required.<\/li>\n<\/ul>\n<h3><strong>4. Future Compatibility<\/strong>:<\/h3>\n<ul>\n<li>Use hooks exclusively to avoid modifying core files.<\/li>\n<li>Regularly update your code to remain compatible with newer PrestaShop versions.<\/li>\n<\/ul>\n<h2><strong>Conclusion<\/strong><\/h2>\n<p><a href=\"https:\/\/addons.prestashop.com\/en\/registration-ordering-process\/29189-custom-field-registration.html\">Adding custom fields to products in PrestaShop <\/a>is a simple yet powerful way to extend the platform&#8217;s functionality. By following this guide, you can ensure that your customizations remain modular, maintainable, and compatible with future PrestaShop updates.<\/p>\n<p>Feel free to adapt these techniques to other areas of your PrestaShop store, and share your results in the comments below!<\/p>\n<p style=\"text-align: center;\"><iframe loading=\"lazy\" title=\"YouTube video player\" src=\"https:\/\/www.youtube.com\/embed\/YVbExG7Y8nU\" width=\"660\" height=\"315\" frameborder=\"0\" allowfullscreen=\"allowfullscreen\"><\/iframe><\/p>\n","protected":false},"excerpt":{"rendered":"<p>PrestaShop is a robust open-source e-commerce platform designed for flexibility and customization. It allows developers to modify and enhance its core functionality using hooks, which are predefined entry points in the system. These hooks enable seamless integration of custom features, ensuring that updates and maintenance of the core system remain hassle-free. This blog provides a [&hellip;]<\/p>\n","protected":false},"author":40,"featured_media":828841,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"_kbui_enabled":"","footnotes":""},"categories":[1],"tags":[39246,39247,39251,39250,39253,18631,39254,39252,39248,39245,17488,39249],"class_list":["post-828832","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-prestashop-blog","tag-add-custom-fields-prestashop","tag-modify-prestashop-forms","tag-prestashop-actioncustomersaveafter","tag-prestashop-actionproductsave","tag-prestashop-admin-panel-customization","tag-prestashop-custom-fields","tag-prestashop-custom-templates","tag-prestashop-customer-registration-fields","tag-prestashop-database-customization","tag-prestashop-hooks-guide","tag-prestashop-product-customization","tag-prestashop-smarty-templates"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO 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in PrestaShop.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.knowband.com\/blog\/prestashop-blog\/save-display-custom-form-field-value-using-prestashop-hook\/\" \/>\n<meta property=\"og:site_name\" content=\"Knowband Blog | Ecommerce Modules\" \/>\n<meta property=\"article:publisher\" content=\"https:\/\/www.facebook.com\/Knowband\" \/>\n<meta property=\"article:published_time\" content=\"2025-01-13T05:46:41+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2025-01-13T05:49:01+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/www.knowband.com\/blog\/wp-content\/uploads\/2025\/01\/How-to-save-and-display-a-custom-form-field-value-using-the-PrestaShop-hook.jpg\" \/>\n\t<meta property=\"og:image:width\" content=\"760\" \/>\n\t<meta property=\"og:image:height\" content=\"300\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/jpeg\" \/>\n<meta name=\"author\" content=\"Gabriel\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" 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