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I have done magento 1.9 to 2 migration(data, settings) using this link and this link.

Is it possible to migrate code from 1.9 to 2.

  • if any of the answers provided helped to solve your issue, please mark it as accepted. – diazwatson Aug 24 '17 at 16:33
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Themes and extensions have to be rewritten.

There are tools that help developers converting their code but a fully automated solution is not possible.

For code that's not too complex and does not depend on too many implementation details (i.e. rewrites), you might get usable results, otherwise it's at least a good starting point for configuration files and standard boilerplate code.

Also, to adhere to Magento 2 best practices you will need to change most of the converted code because it's a 1:1 mapping of models and collections and those should not be used in Magento 2 if you can do the same using the service contracts.

A general advise: Try to make as much as possible of your business logic independent from Magento, this way your critical code does not need any changes to be used in Magento 2. I wrote a series of blog articles about how to achieve this:

And also recently gave a presentation how to refactor existing extensions to decouple them from Magento:

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You can't migrate code from Magento 1 to Magento 2. All extension is created in magento1 are not compatible to Magento 2. You have to create from scratch or support to third-party extension provider company for the magento2 extension.

You also not migrate from theme code. You have to create the new theme for Magento 2 because theme structure for Magento 1 is totally different from magento1.

You can only migrate orders, customers, url-rewrite, products, category and configuration settings` from Magento 1.

You have to write code again for magento 2.

Thanks.

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