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August 9, 2021 12:33
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Rails examples: Single Table Inheritance (STI), strong parameters, single controller.
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# Variant 1 | |
def user_params(type) | |
params.require(type.to_sym).permit(attributes) | |
end | |
# Variant 2 | |
def user_params(type) | |
case type | |
when "user" | |
params.require(:user).permit(user_attributes) | |
when "apprentice" | |
params.require(:apprentice).permit(apprentice_attributes) | |
end | |
end | |
# Variant 3 | |
def update | |
... | |
if @user.update(send("#{@user.type.underscore.to_sym}_params")) | |
... | |
end | |
def user_params | |
params.require(:user).permit(attributes) | |
end | |
def apprentice_params | |
params.require(:apprentice).permit(attributes) | |
end | |
# Variant 4 | |
https://github.com/T-Dnzt/sti-with-rails4/blob/master/app/controllers/animals_controller.rb |
Thank you this worked wonderfully!
Just stumbled upon this and found a handy solution for my problem, thank you :)
Thanks! To get the name of the model used in the parameters, you can also use:
@model_instance.model_name.param_key
And what about that?
def user_params
type = @user.type.underscore.to_sym
params.require(type).permit(:name, :age)
end
Thanks! To get the name of the model used in the parameters, you can also use:
@model_instance.model_name.param_key
👍 - cleanest IMO. Thanks @flavio-b!
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If the list gets too long I took an approach where I defined the permitted attributes in every model
Again, this approach is for when the possible amount of permitted gets crazy big cause of STI.