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cách sử dụng ransackable_scopes trong ROR
model code:
scope :with_active_subscription, -> (flag = nil) {
pp "Value received: #{flag.inspect}"
return all if flag.blank? || flag.to_s == ''
if flag.to_s == 'true'
# Logic cho true case
where(has_active_subscription: true)
elsif flag.to_s == 'false'
# Logic cho false case
where(has_active_subscription: false)
else
all
end
}
class << self
def ransackable_scopes(auth_object = nil)
%w[with_active_subscription]
end
end
controller code:
# GET /products
def index
@q = Product.ransack(search_params)
@products = @q.result(distinct: true)
end
private
def search_params
params.fetch(:q, {}).permit(
:with_active_subscription,
)
end
=> hiện không nhận được giá trị của flag trong "scope :with_active_subscription", mọi người giúp mình với.
Thêm một bình luận
3 CÂU TRẢ LỜI
0
class << self
def ransackable_scopes(auth_object = nil)
[:with_active_subscription] # <-- dùng symbol
end
end
0
Theo ý kiến cá nhân của mình, thì có thể sửa lại code cho gọn như sau:
# GET /products
def index
@products = Product.with_active_subscription(params[:is_active_subscription])
end
# model
scope :with_active_subscription, -> (flag) {
flag = ActiveModel::Type::Boolean.new.cast(flag)
return if flag.blank?
where(has_active_subscription: flag)
}
0
Interesting article on ransackable_scopes in Rails! I found it particularly helpful for creating custom search logic. I'd suggest adding examples showcasing how to use these scopes with complex queries, perhaps involving multiple tables. I use this when playing Wordle Unlimited , so the search logic is important. Is there any consideration on using ransackable_scopes when it comes to performance? I'm thinking about scaling the app in the near future. Thanks for the insights!
