Finally I created a module to set my global variables. They are accesible only from TPL files though. Here is the code in case that it may be useful for anyone:
https://github.com/dianacd/prestashop_modules/tree/master/mcr_global_var
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Finally I created a module to set my global variables. They are accesible only from TPL files though. Here is the code in case that it can be useful for anyone:
https://github.com/dianacd/prestashop_modules/tree/master/mcr_global_var