CORS policy for subdomains – htaccess – apache server

Works for Magento 2.2x

Cross-Origin Resource Sharing header for Access-Control-Allow-Origin for Subdomains

SetEnvIf Origin "^(.*\.yourdomain\.com)$" OSD=$1
Header set Access-Control-Allow-Origin "%{OSD}e" env=OSD
Header set Access-Control-Allow-Methods: "*"
Header set Access-Control-Allow-Headers: "*"

or a general format for simple copy paste:

SetEnvIf Origin "^(.*)$" OSD=$1
Header set Access-Control-Allow-Origin "%{OSD}e" env=OSD
Header set Access-Control-Allow-Methods: "*"
Header set Access-Control-Allow-Headers: "*"

How to manage Magento 2 product attribute values options using console

This is an update to my previous script which was used to add custom product attribute values using backend –
Add values to product attribute

Read the previous^ part to get introduction about how it works. you will have to use browser console (ctrl + shift +j in Google chrome)

First of all initialize the array mimim with the final set of values you want to see in backend. The script then automatically removes the extra options first(values which are not in mimim but in present in backend), then it adds the remaining values from mimim (which are in mimim but not at backend)

$jq=new jQuery.noConflict();
var mimim=["Abalone",
"Titanium Druzy",
"Tourmaline",
"Turquoise",
"Yellow Zircon",
"Light Blue Druzy"];
var trans=[];var o=0;
$jq('#manage-options-panel tbody tr td:nth-child(3) input').each(
  function(a,b){
	//if(a>10)return false;
	//alert(b.value);
	trans.push(b.value);
	if($jq.inArray(b.value,mimim)==-1){ o++;$jq('#delete_button_'+b.name.slice(14,-4)).click(); trans.pop();}
});
alert(o+" items removed");
$jq.each(mimim,function(a,b){
//console.log($jq('#manage-options-panel tbody tr td:nth-child(3) input').val());
if($jq.inArray(b,trans)==-1){
$jq('#add_new_option_button').click();
$jq('#manage-options-panel tbody tr:last-child td:nth-child(3) input').val(b);
}

});

Insert Indian States in Magento Database

Connect to your server’s database using mysql cli or phpmyadmin and use the following query

INSERT INTO `directory_country_region` VALUES 
(NULL,"IN","AP","Andhra Pradesh"),
(NULL,"IN","AR","Arunachal Pradesh"),
(NULL,"IN","AS","Assam"),
(NULL,"IN","BR","Bihar"),
(NULL,"IN","CG","Chhattisgarh"),
(NULL,"IN","GA","Goa"),
(NULL,"IN","GJ","Gujarat"),
(NULL,"IN","HR","Haryana"),
(NULL,"IN","HP","Himachal Pradesh"),
(NULL,"IN","JK","Jammu and Kashmir"),
(NULL,"IN","JH","Jharkhand"),
(NULL,"IN","KA","Karnataka"),
(NULL,"IN","KL","Kerala"),
(NULL,"IN","MP","Madhya Pradesh"),
(NULL,"IN","MH","Maharashtra"),
(NULL,"IN","MN","Manipur"),
(NULL,"IN","ML","Meghalaya"),
(NULL,"IN","MZ","Mizoram"),
(NULL,"IN","NL","Nagaland"),
(NULL,"IN","OD","Odisha"),
(NULL,"IN","PB","Punjab"),
(NULL,"IN","RJ","Rajasthan"),
(NULL,"IN","SK","Sikkim"),
(NULL,"IN","TN","Tamil Nadu"),
(NULL,"IN","TL","Telangana"),
(NULL,"IN","TR","Tripura"),
(NULL,"IN","UK","Uttarakhand"),
(NULL,"IN","UP","Uttar Pradesh"),
(NULL,"IN","WB","West Bengal"),
(NULL,"IN","AN","Andaman and Nicobar Islands"),
(NULL,"IN","CH","Chandigarh"),
(NULL,"IN","DH","Dadra and Nagar Haveli"),
(NULL,"IN","DD","Daman and Diu"),
(NULL,"IN","DL","Delhi"),
(NULL,"IN","LD","Lakshadweep"),
(NULL,"IN","PY","Puducherry");

How to create Magento 2 category programmatically?

Use this code:

<?php
use \Magento\Framework\App\Bootstrap;
echo 'code by harshvardhanmalpani';
include('./app/bootstrap.php');
$bootstrap = Bootstrap::create(BP, $_SERVER);
$objectManager = $bootstrap->getObjectManager();
function createCategory($a='',$b=2,$c=true,$d='',$e='',$f='',$g='') {
global $objectManager;
$category = $objectManager->get('\Magento\Catalog\Model\CategoryFactory')->create();
$category->setName($a);
$category->setParentId($b); // 1: root category.
$category->setIsActive($c);
$category->setCustomAttributes([
'description' => $d,
'meta_title' => $e,
'meta_keywords' => $f,
'meta_description' => $g,
]);
$objectManager->get('\Magento\Catalog\Api\CategoryRepositoryInterface')->save($category);
}
createCategory("Abc");
createCategory("Xyz",4,false,"description","m title");
?>

How to secure a folder by whitelisting one IP using HTACCESS and denying all others

The process involves matching all requests for an IP, if the IP does not match redirect all secured directory requests.

RewriteCond %{REMOTE_ADDR} !^120\.120\.120\.120
RewriteRule ^admin/.* - [L,R=403] 
RewriteCond %{REMOTE_ADDR} ^120\.120\.120\.120
RewriteRule ^admin$ - [L,R=403]

If you want to control this IP using a script, you can add 2 lines

###CUSTOM RULES###
# your rules will appear here using php script
###CUSTOM RULES###

Now add a script, say happy.php
and use the following code:

$htaccess = file_get_contents('.htaccess');
$ip= str_replace(".","\.",$_SERVER['REMOTE_ADDR']);
$rules="RewriteCond %{REMOTE_ADDR} !^".$ip."
RewriteRule ^admin/.* - [L,R=403]
RewriteCond %{REMOTE_ADDR} !^".$ip."
RewriteRule ^admin$ - [L,R=403]";
$problem="###CUSTOM RULES###\r\n".$rules.
"\r\n###CUSTOM RULES###";
#please copy the next line carefully, no extra spaces or new lines
$solution=preg_replace('/###CUSTOM RULES###.*?###CUSTOM RULES###/sm',$problem,$htaccess);
file_put_contents('.htaccess', $solution);

you can also specify your error page for specific http code: 403
ErrorDocument 403 /er.htm

Magento 2.1x – Add options in custom product attribute using backend

Go to the attribute edit page using magento 2 admin panel (Stores > Attributes > Product > Edit attribute)
Use console – ctrl + shift + J
Edit the js array mimim and then paste the following code in console.

$jq=new jQuery.noConflict();
var mimim=["Black","Blue","Blue Black"];
$jq.each(mimim,function(a,b){
$jq("#add_new_option_button").click();
$jq("#manage-options-panel tbody tr:last-child td:nth-child(3) input").val(b);
});