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PrestaShop Module Development by Fabien Serny

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Upgrading your module

This section is optional unless you want to distribute your module (that is, give or sell). However, if you skip this part, be sure to use the module attached with this chapter, instead of your own, before going to the next chapter.

This section is only for PrestaShop 1.5 and newer (module upgrade methods did not exist in PrestaShop 1.4).

Why use an update method? When you improve one of your modules, there may be times you will need to add a SQL table, alter existing ones, or even make specific configuration actions. In most cases, the merchant won't be able to make the updates manually and you can't ask them to uninstall/reinstall the module because, in our case, it means that all the comments posted will be deleted.

Let's ...

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