About linking the database before using the model in tp5

Question

It is known that the model in tp5 can automatically associate a data table, provided that the database where the table is located has been connected. Please tell me, in addition to configuring the database information in database.php, can I connect to the database in the model file? Yes. What if you define the link function in the class and then call the function in other files?

Answer 1

Look at the manual, this one has an introduction