Rails - WARNING: Can't mass-assign protected attributes

问题

Continuing from here: Rails - Form problems, everytime I try to create a new group_membership I get this: WARNING: Can't mass-assign protected attributes: group, member at my log and the ID's are added blank.

Have been making changes to the attr_accessible of my models but so far no solution.

Thanks in advance.

回答1:

Make sure you add :group and :member to your attr_accessible call :)

来源：https://stackoverflow.com/questions/6062971/rails-warning-cant-mass-assign-protected-attributes