Rails 4 - Do not scope if conditions

问题:

I want to create a scope with some conditions, with one returning not a specific scope. For now, this solution works:

scope :my_scope, ->(my_var) {   scope = where('TRUE')   if my_var.condition1?      scope = scope.where({ :some_condition => :some_value })   end   if my_var.condition2?      scope = scope.where({ :some_condition => :some_value })   end   scope  } 

Is there any other better solution to do this ?

Regards

回答1:

In Rails 4, you can simply use all:

scope :my_scope, ->(my_var) {   if my_var.condition?     where(some_condition: :some_value)   else     all   end end 

文章来源: Rails 4 - Do not scope if conditions