How to trigger a change in a PHP server from a date in a SQL db

Question

I have an e-commerce site (based on magento2) with products on it that need to be available between certain dates. I have saved the specific start and end dates in a mysql db but now need to trigger the enabling/disabling of a product when the time is reached. How can I have a live link between the two without setting up a cron job that runs every second to edit the status?

Answer 1

"I need a CRON every second" for a MySQL problem means your actually need a VIEW (or eventually a TRIGGER for heaviest cases).

Assuming you have product.startDate and product.endDate columns, along with a product.isEnabled . Then create the following VIEW :

CREATE VIEW `productView` AS SELECT 
    startDate AS startDate,
    endDate AS endDate, 
    (isEnabled AND NOW() BETWEEN startDate AND endDate) AS isEnabled
FROM product

And use this VIEW in your code ( SELECT p.isEnaled FROM productView ). In case you cannot update the PHP using code, just rename the table (for productTable ) and use product AS the view's name.