Initialisation of the Database

Hi! I would like to implement an installation routine.
When my default controller is started, it should invoke a function that create if needed the tables in my database...

The question is where do I put (best practice) the function? In the main controller? In a model? I tried in an Helper but got issues with the db->table_exist()

Create and put them in a install model

What did you Try? What did you Get? What did you Expect?

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