Magento 2 Developer’s Cookbook: Useful Code Snippets, Tips, and Notes
Since Magento 2 has been already released, there are a lot of reliable data sources related to the new version of the platform. Thus, we’ve decided to create this tiny Magento 2 Developer’s Cookbook, which is based on our experience, official devdocs, materials from Magento StackExchange, and other sources. In the post below, you will find code snippets, tips, and notes about Magento 2. And don’t forget to examine the following links, as they also provide a lot of useful information.
Everything about Magento 2 on Firebear
The Extensive Guide to Magento 2 Troubleshooting
We are trying to update this post with new Magento 2 “recipes” several times a week, so don’t forget to check the cookbook periodically. The latest updates are:
- Magento to Shopify Product Migration Guide
- Magento vs Shopify: products, inventory, orders, marketing compared
- Magento SEO Checklist
- Magento 2 Import
- How to Associate Child Reviews to Configurable or Bundle Parent Products During Magento 2 Import
- How to Import Product Images from FTP to Magento 2
- How to Archive Files After Magento 2 Import
- How to Import Products & Images Separately to Magento 2
- How to Update Customizable Product Options During Magento 2 Import
- How to Generate Unique Product & Category URLs if They Are Duplicated During Magento 2 Import
- How to Create New Product URLs After Import in Magento 2
- How to Cache Imported Product Files in Magento 2
- How To Add Product Quantity To The Existing Value During Magento 2 Product Import
- How to Import Only Mapped Fields to Magento 2
- How to Resize Images after Import With Imagick (ImageMagick) for Magento 2
- How to Remove Images From Magento 2 Directory After Import
- How to Avoid Customer Address Duplication During Magento 2 Import
- How to Export Order Addresses in One Line in Magento 2
- How to Change Stock Status in Magento 2 Import When “is_in_stock” Is Missing
- How to Convert Kilograms to Grams During Magento 2 Product Import
- How to Export Simple Products With Their Parent Product Relations in Magento 2
- How to Import Base Images to Magento 2 as Small & Thumbnail Images
- How to Import Customer Addresses to Magento 2 Without Data Duplication
- How to Import Products to Magento 2 & Remove Their Upsell Products
- How to Import Products to Magento 2 & Remove Their Cross-Sells
- How to Import Products to Magento 2 & Remove Their Related Products
- How to Import Products to Magento 2 & Remove Their Existing Images From The Database
- How to Import Products to Magento 2 & Remove Associated Product Categories
- How to Import Products to Magento 2 & Remove Associated Product Store Views
- How to Import Products to Magento 2 & Remove Product Associations
- How to Clear Attribute Values via Magento 2 Product Import
- How to import 100,000 products to Magento 2 in less than an hour
- How to import CSV files from /var/import/ folder to Magento 2 automatically
- How to import default attribute values for products via API in Magento 2
- How to create redirects from old URL keys to new ones via Magento 2 import
- How to import & export Magento 2 categories with custom separators
- How to disable products not available in an import file for specific Magento 2 websites
- How to send CC & BCC email notifications for Magento 2 import & export
- How to import and export attribute sets with multiple values in Magento 2
- How to update bundle product options using Magento 2 import
- How to import products to Magento 2 and set their status to Out of Stock automatically
- How to import nested XML files to Magento 2
- How to import nested JSON files to Magento 2
- How to import unique custom option titles for specific store views in Magento 2
- How to import customers to Magento 2 and assign them to a customer group
- How to generate order increment IDs automatically during Magento 2 import
- How to update products that are not listed in a product table during Magento 2 import
- How to use external image URLs in Magento 2 import
- How to fix “The source file moving process failed” error in Magento 2
- How to import product images in Magento 2 when they already exist in pub/media
- How to export Page Builder pages or templates in Magento 2?
- How To Add ‘Delete Confirmation Popup’ In Magento 2 For Default Import Functionality
- How To Update Order Status Via CSV In Magento 2
- How To Fix Error 1062 Upon Magento 2 Database Import
- How to export specific data sets for a particular entity in Magento 2
- How to export data from Magento 2 in XLS & XLSX formats
- How to export a custom entity from Magento 2
- How to export customers with custom attributes in Magento 2
- How to export custom SKU column from Magento 2 with all content
- How to fix store ID-related issues on Magento 2 import
- How to fix the “URL key for specified store already exists” issue on Magento 2 import
- How to Troubleshoot Upgrade Issues in Magento 2
- The End of The Hosted Server Epoch: How to Run Magento 2.4 That Requires PHP 7.4 and Elasticsearch
- Magento 2 Cannot Import Product Images: Reasons & Resolutions
- How to Address Backup Issues in Magento 2
- How to fix “Updater application is not available” issue in Magento 2
- How to Fix Webpack That Hangs Before Compilation (PWA Studio Issue)
- How to Improve Magento 2 Performance Issues Caused by Non-cacheable Pages
- How to optimize private content blocks in Magento 2 for better performance
- How to Fix Invalidated Cache Performance (Response Time) Degradation in Magento 2
- How to Troubleshoot Product Recommendations Module in Magento 2
- How to Fix & Improve Order Export to Magento Order Management in Magento 2
- The Ultimate Magento 2 REST API Guide
- Magento 2 Integrity Constraint Violation Issues & Solutions
- How to decrease throughput AJAX requests in Magento 2 to improve performance
- How to set indexers to Update On Schedule mode in Magento 2
- How to fix Redis in Magento 2
- How to load a Magento 2 website if maintenance mode is left enabled (Service Temporarily Unavailable error)
- How to restore green Elasticsearch Index Status in Magento 2
- How to fix cron readiness check issues in Magento 2
- How to fix file permissions readiness check issues in Magento 2
- How to fix PHP version readiness check issues in Magento 2
- How to fix conflicting component dependencies issues in Magento 2
- How to fix errors installing optional sample data in Magento 2
- How to fix xdebug maximum function nesting level error during Magento 2 installation
- How to install Magento 2 if install.log cannot be created
- How to solve the Unknown module error during the Magento 2 installation
- How to fix failed Magento 2 download caused by changes in Composer
- How to fix Exception SessionHandler during Magento 2 installation
- How to fix ReflectionException error during Magento 2 installation
- How to fix fatal PDO error during the Magento 2 installation
- How to install Magento 2 using nginx
- How to install Magento 2 if installation stops
- How to log in to the Magento 2 admin if the requested URL was not found
- How to clone the Magento 2 GitHub repository and meet installation dependencies
- How to open your store when Magento 2 is not accessible in a browser
- How to add a custom import adapter in Magento 2
- How to fix the inability to write to the generated/code directory in Magento 2
- How to Fix Exceptions During Magento 2 Installation
- How to Export Products from Magento 2 via CLI
- How to Import Multiselect Attribute Values to Magento 2
- How to Import Disabled Products to Magento 2
- How to Read a CSV File & Convert It into an Array in Magento 2
- How To Import Customer Passwords To Magento 2
- How to Import Attribute Values with Commas to Magento 2
- How to create a custom import in Magento 2
- How to Import Products with Custom Attributes to Magento 2
- How to Import Configurable Product with Multiple Configurable Options to Magento 2
- How to Import Custom CSV to Custom Table in Magento 2
- How to Import Database in Magento 2
- How to write and get config values by scope in Magento 2
- How to get current quote in Magento 2
- How to fix Magento 2 item with the same ID already exists error
- How to solve Magento 2 var/generation cannot be deleted problem
- How to get default billing and shipping address by customer in Magento 2
- How to display success and error messages in Magento 2
- How to get option label from dropdown in Magento 2
- How to get a product by ID in Magento 2
- How to get all attributes of a product in Magento 2
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How to get simple products of configurable product in Magento 2 - How to Add Magento 2 System Configuration Fields & Get Core Config Data Programmatically
- How to Regenerate URL Rewrites in Magento 2
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How to Import & Export WADL Data to/from Magento 2 - How to Import & Export WSDL Data to/from Magento 2
- How to fix Magento 2 500 internal server error
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How to fix Error 503 (Service Temporary Unavailable) in Magento 2 - How to repair Magento 2 database
- How to debug and log Magento 2 import and export process and errors
- How to Export Products, Orders, Customers, & Other Magento 2 Entities to Remote FTP & SFTP Server
- Invalid Option Value: How To Fix Magento 2 Import Error
- Imported Resource (Image) Could Not Be Downloaded: How To Fix Error During Magento 2 Import
- Magento 2 Import: How To Fix ‘Value For Attribute Contains Incorrect Value’ Error
- Value For Status Attribute Contains Incorrect Value: How To Fix Error During Magento 2 Import
- General System Exception Happened: How To Fix Error During Magento 2 Import
- How to Create Magento 2 Progress Bar For Files Import
- How to Import Individual Product Data for Each Store View in Magento 2?
- How to Run Product Import in Magento 2 from CLI
- How to Import Products with ™ & ® Symbols in Magento 2
- Magento 2 Import Error
- How to Import Related Products to Magento 2
- State of the Art in Magento 2 Product Imports
- Admin URL Is not Working in Magento 2
- How to Add Non-Category Link to Navigation Links in Magento 2
- How to Create Child Theme in Magento 2
- Magento 2 setup:upgrade & Other Commands
- Magento 2 CSS and JavaScript Files Are Not Loading
- Magento 2 Deprecated Save & Load Methods In Abstract Model
- How To Add Fees To Order Totals In Magento 2
- How to Override Core Block, Model & Controller in Magento 2
- How to Bootstrap Magento 2 in test.php Script
- 404 Error for Scripts and CSS in Magento 2
- Magento 2 ObjectManager Use Cases
- Magento 2 File/Folder Permissions
- How To Import Customers & Customer Addresses To Magento 2
- How To Import And Export Tax Rates In Magento 2
- How to import XML to Magento 2
- How to Import CSV to Magento 2 via SSH
- Magento 2 Magmi Integration
- How to Import Product Images into Magento 2 in Bulk
- How to Represent Multiple Option Attribute for Magento 2 CSV Product Import
- How to Configure Import CSV File Size in Magento 2
- How To Import/Export Categories Between Magento 2 Websites
- How to Make Custom CSV Mapping in Magento 2
- How to Run Product Import on Daily basis in Magento 2
- Magento 2 UI Grid Component
- How do disable caching of custom block on a Magento 2 product view page?
- Pros and cons of using plugins vs observers in Magento 2
- Magento 1.9 upgrade to Magento 2 via admin panel or Magento Connect
- How to add bootstrap.js in Magento 2?
- How to move Magento 2 root URL to another domain
- How to make JavaScript strings translatable (localizable) in Magento 2
- Main frontend menu generation in Magento 2
- How is a price rendered on a frontend product view page in Magento 2?
- How to get a store in Magento 2 programmatically?
- How to return a JSON response from a controller in Magento 2
- How to get base directory programmatically in Magento 2
- Loading categories by their IDs in Magento 2
- What are JavaScript validators in Magento 2?
- Loading subcategories for a category in Magento 2
- Adding custom attribute to customers for Magento 2 extensions
- How to create customer groups programmatically in Magento 2
- system.xml saved config validation in Magento 2
- How to modify CSS files in Magento 2
- How to remove the Create Order button from customer admin form in Magento 2
- How to reset lost admin password in Magento 2
- How to add custom block for shipping methods in onepage checkout in Magento 2
- How to get Customer in product view in Magento 2
- How to add arbitrary HTML to <head> of every page in Magento 2
- What does Magento 2 @escapeNotVerified mean?
- How to retrieve product information in Magento 2
- How to write files programmatically in Magento 2
- How to create custom helper in Magento 2
- How to set up custom response HTTP header from a controller in Magento 2
- How to add new parameters to core model in Magento 2
- How to get product collection in custom template block in Magento 2
- How to extend layout from vendor folder in Magento 2
- How to use Mage::log method in Magento 2
- How to add date field in admin in Magento 2
- How to extend JavaScript class/method of checkout model class in Magento 2
- How to override email HTML files in Magento 2
- How to create Magento 2 custom collection query
- How to get most viewed products and bestsellers on homepage in Magento 2
- How to create beautiful image upload in configuration of Magento 2
- How to check if customer is logged into Magento 2
- How to load Model function in block in Magento 2 when overriding or extending a core block
- How to add Google Fonts in Magento 2
- How I to change default font Icon in menu admin for a custom module in Magento 2?
- How to create a language package for Magento 2?
- How to get a page url from a *.phtml template in Magento 2?
- How to adjust Apache web server to run Magento in a subdirectory
- Where are third-party modules situated in Magento 2?
- How to use the new repo.mangento.com
- How to set up a form popup-modal in Magento 2
- An extension’s custom initialization on Magento start
- «There are no commands defined» failure
- How to create an extension dropdown config option in Magento 2
- How to create Magento 2 custom system configuration and controller
- How to include a phtml file in Magento 2
- How to get current store DateTime in Magento 2
- Permission Denied htaccess in folders without htaccess files
- Magento 2 registration.php file in extension folder
- How to add a child block in Magento 2
- Magento 2 Shortcut for performing command line tasks on Windows
- How to overwrite a template via module in Magento 2
- How to load a JavaScript file of a custom module in Magento 2
- How to create a custom backend form processing before submission and validation in Magento 2
- Magento 2 virtualType
- How to get the media folder URL programmatically in Magento 2
- How to program the media browser in Magento 2
- How to catch the admin tab switching event in Magento 2
- How to create a popup (modal) window on button click in Magento 2 admin
- Error while overriding block via preference in Magento 2
- How to add custom Javascript in head in Magento 2
- How to render an image in Magento 2 Adminhtml grids
- How to get Magento 2 events/observers
- How to create Admin Grid in Magento 2
- How to include the name of a module in Magento 2
- How to check programmatically if you are in the admin panel in Magento 2
- How can extensions show / hide blocks conditionally in Magento 2
- How to make extension to perform custom initialization on a Magento 2 start
- How to use controller to redirect customers to another URL in Magento 2
- Database schema upgrade
- How to get access to working directories in Magento 2
- How to get the default core write and read resources in Magento 2
- How to get a base url in Magento 2
- How to Generate constructors in Magento 2
- What should I do if Magento 2 grunt exec does not create symlinks
- How Can I move a search bar in Navigation div in Magento 2 via XML?
- How to convert a number format into a currency format in Magento 2
- Adding a custom block to specific product type view pages
- How to override a base view file
- How to call theme images from a static block
- How to programmatically create a configurable Magento 2 product
- Mage::Registry in Magento 2
- magento2-composer-bundled
- How to re-generate Magento 2 code in var/generation
- How to enable Template path hints and display block names in Magento 2
- How to defer JavaScript execution in Magento 2
- How to change a template for a standard block
- How to replace LESS CSS Preprocessor with SASS or another one
- How to get POST and GET requests in Magento 2
- How to clean LESS/CSS Theme cache in Magento 2
- Magento 2 Request Flow
- How to remove block from a Magento 2 layout
- How to set Magento 2 modes (production, development)
- Adding a new product type in Magento 2
- Writing a message to a system log in Magento 2
- How to setup cron in Magento 2
- Flushing the Magento 2 Cache Storage
- Adding custom CSS/JS to your Magento 2 modules
- How to check if a Magento 2 module has been successfully installed
- How to create a Magento 2 playground test file with an initialised Magento 2 application
- How to enable profiler in Magento 2
- How to start Developer Mode in Magento 2
- How to get the сollection of custom Magento 2 modules
- How to instantiate a model in Magento 2
- How to instantiate a custom block in Magento 2
- How to display exceptions on a page in Magento 2
To be continued…
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