Unpermitted parameters in rails 4

问题:

I read about collection_check_boxes but I don't understand how can I set the checked values. I have the following model:

class Objective 

edit view:

the html checkbox are ok but I don't know how to set the values to objective. I was tried define objective_ids= objectives_ids but nothing happens.

In Controller:

class ObjectivesController 

EDIT The log file says Unpermitted parameters: perspective_id, objective_ids

回答1:

I solved changing the line

params.require(:objective).permit(:name, :code, :description, :objective_ids) 

to

params.require(:objective).permit(:name, :code, :description, :objective_ids => []) 

回答2:

I get the same problem, try this line:

params.require(:objective).permit(:name, :code, :description, :objective_ids => []) 

but does not work and i change to:

params.require(:objective).permit(:name, :code, :description, {:objective_ids => []}) 

and it works !!

文章来源: Unpermitted parameters in rails 4