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So you’re loving your new Magento 2 store when all of a sudden you realize, your simple products have started turning themselves into virtual products. Magento 2 automagically freely converts simple products to virtual and virtual products to simple based on whether or not the product has a weight.

All you have to do to turn those virtual products back into simple products is provide a value for weight. When you go in to edit the product, though, you may find there is no weight attribute on the screen!

Look in eav_attribute for the weight attribute_code and get its attribute_id (entity_type_id is probably 4). Look in catalog_eav_attribute where attribute_id is the one you just looked up from eav_attribute and set apply_to NULL. Reload product edit page, and you should see weight now

Looking for Mage::getBaseUrl in Magento 2?
Use the DirectoryList class in your constructor to get an instance of DirectoryList.

Magento\Framework\App\Filesystem\DirectoryList $directory_list

For getting your Magento 2 root folder you can use

$this->directory_list->getRoot();

For getting media folder you can use

$this->directory_list->getPath('media');

Other possible uses are:

/* Get app folder */
$this->directory_list->getPath('app');
 
/* Get configuration folder */
$this->directory_list->getPath('etc');
 
/* Get libraries or third-party components folder */
$this->directory_list->getPath('lib_internal');
 
/* Get libraries/components that need to be accessible publicly through web-server folder */
$this->directory_list->getPath('lib_web');
 
/* Get public folder */
$this->directory_list->getPath('pub');
 
/* Get static folder */
$this->directory_list->getPath('static');
 
/* Get var folder */
$this->directory_list->getPath('var');
 
/* Get temporary files folder */
$this->directory_list->getPath('tmp');
 
/* Get file system caching directory (if file system caching is used) */
$this->directory_list->getPath('cache');
 
/* Get logs of system messages and errors */
$this->directory_list->getPath('log');
 
/* Get file system session directory (if file system session storage is used) */
$this->directory_list->getPath('session');
 
/* Get directory for Setup application*/
$this->directory_list->getPath('setup');
 
/* Get Dependency injection related file directory */
$this->directory_list->getPath('di');
 
/* Relative directory key for generated code*/
$this->directory_list->getPath('generation');
 
/* Temporary directory for uploading files by end-user */
$this->directory_list->getPath('upload');
 
/* Directory to store composer related files (config, cache etc.) in case if composer runs by Magento Application */
$this->directory_list->getPath('composer_home');
 
/* A suffix for temporary materialization directory where pre-processed files will be written (if necessary) */
$this->directory_list->getPath('view_preprocessed');
 
/* Get template minification dir */
$this->directory_list->getPath('html');

In some custom modules, you may need to change the index mode from manual to auto or vice versa or you may need to run one of the indexers.

$pCollection
    = Mage::getSingleton('index/indexer')->getProcessesCollection();
foreach ($pCollection as $process) {
    //$process->setMode(Mage_Index_Model_Process::MODE_MANUAL)->save();
    $process->setMode(Mage_Index_Model_Process::MODE_REAL_TIME)->save();
}

$pCollection
    = Mage::getSingleton('index/indexer')->getProcessesCollection();
foreach ($pCollection as $process) {
    $process->reindexEverything();
}

Indexes can be loaded using either the process ID or the process code using the functions:

by ID:

$process = Mage::getSingleton('index/indexer')->getProcessById();

by CODE:

$process = Mage::getSingleton('index/indexer')->getProcessByCode(<process_code>);

->FTP users can use the following command to cleanup Magento caches:

mrm -r ./var/cache ; mkdir ./var/cache

mrm -r ./var/full_page_cache ; mkdir ./var/full_page_cache

‘validate-no-html-tags’ => ‘HTML tags are not allowed’

‘validate-select’ => ‘Please select an option.’

‘required-entry’ => ‘This is a required field.’

‘validate-number’ => ‘Please enter a valid number in this field.’

‘validate-number-range’ => ‘The value is not within the specified range.’

‘validate-digits’ => ‘Please use numbers only in this field. Please avoid spaces or other characters such as dots or commas.’

‘validate-digits-range’ => ‘The value is not within the specified range.’

‘validate-alpha’ => ‘Please use letters only (a-z or A-Z) in this field.’

‘validate-code’ => ‘Please use only letters (a-z), numbers (0-9) or underscore(_) in this field, first character should be a letter.’

‘validate-alphanum’ => ‘Please use only letters (a-z or A-Z) or numbers (0-9) only in this field. No spaces or other characters are allowed.’

‘validate-alphanum-with-spaces’ => ‘Please use only letters (a-z or A-Z), numbers (0-9) or spaces only in this field.’

‘validate-street’ => ‘Please use only letters (a-z or A-Z) or numbers (0-9) or spaces and # only in this field.’

‘validate-phoneStrict’ => ‘Please enter a valid phone number. For example (123) 456-7890 or 123-456-7890.’

‘validate-phoneLax’ => ‘Please enter a valid phone number. For example (123) 456-7890 or 123-456-7890.’ ‘validate-fax’ => ‘Please enter a valid fax number. For example (123) 456-7890 or 123-456-7890.’ ‘validate-date’ => ‘Please enter a valid date.’ ‘validate-date-range’ => ‘The From Date value should be less than or equal to the To Date value.’ ‘validate-email’ => ‘Please enter a valid email address. For example johndoe@domain.com.’ ‘validate-emailSender’ => ‘Please use only visible characters and spaces.’ ‘validate-password’ => ‘Please enter 6 or more characters. Leading or trailing spaces will be ignored.’ ‘validate-admin-password’ => ‘Please enter 7 or more characters. Password should contain both numeric and alphabetic characters.’ ‘validate-both-passwords’ => ‘Please make sure your passwords match.’ ‘validate-url’ => ‘Please enter a valid URL. Protocol is required (http://, https:// or ftp://)’ ‘validate-clean-url’ => ‘Please enter a valid URL. For example http://www.example.com or www.example.com’ ‘validate-identifier’ => ‘Please enter a valid URL Key. For example “example-page”, “example-page.html” or “anotherlevel/example-page”.’ ‘validate-xml-identifier’ => ‘Please enter a valid XML-identifier. For example something_1, block5, id-4.’ ‘validate-ssn’ => ‘Please enter a valid social security number. For example 123-45-6789.’ ‘validate-zip’ => ‘Please enter a valid zip code. For example 90602 or 90602-1234.’ ‘validate-zip-international’ => ‘Please enter a valid zip code.’ ‘validate-date-au’ => ‘Please use this date format: dd/mm/yyyy. For example 17/03/2006 for the 17th of March, 2006.’ ‘validate-currency-dollar’ => ‘Please enter a valid $ amount. For example $100.00.’ ‘validate-one-required’ => ‘Please select one of the above options.’ ‘validate-one-required-by-name’ => ‘Please select one of the options.’ ‘validate-not-negative-number’ => ‘Please enter a number 0 or greater in this field.’ ‘validate-zero-or-greater’ => ‘Please enter a number 0 or greater in this field.’ ‘validate-greater-than-zero’ => ‘Please enter a number greater than 0 in this field.’ ‘validate-state’ => ‘Please select State/Province.’ ‘validate-new-password’ => ‘Please enter 6 or more characters. Leading or trailing spaces will be ignored.’ ‘validate-cc-number’ => ‘Please enter a valid credit card number.’ ‘validate-cc-type’ => ‘Credit card number does not match credit card type.’ ‘validate-cc-type-select’ => ‘Card type does not match credit card number.’ ‘validate-cc-exp’ => ‘Incorrect credit card expiration date.’ ‘validate-cc-cvn’ => ‘Please enter a valid credit card verification number.’ ‘validate-ajax’ => ” ‘validate-data’ => ‘Please use only letters (a-z or A-Z), numbers (0-9) or underscore(_) in this field, first character should be a letter.’ ‘validate-css-length’ => ‘Please input a valid CSS-length. For example 100px or 77pt or 20em or .5ex or 50%.’ ‘validate-length’ => ‘Text length does not satisfy specified text range.’ ‘validate-percents’ => ‘Please enter a number lower than 100.’ ‘validate-cc-ukss’ => ‘Please enter issue number or start date for switch/solo card type.’